US7114777B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair having reclineable back and movable seat
Assignee: Steelcase Inc
•
Filing: 2004-09-21
•
Granted: 2006-10-03
•
Expires: 2024-09-21
Abstract
Abstract A seating unit includes a seating unit having a base, a seat and a back operably pivoted to the base for synchronous movement including recline of the back and forward movement of the seat, an adjustable variable back stop adjustably engaging the seat for adjustably limiting a rearward tilt of the back, and a handle. The handle and the back stop are supported for independent movement, but are interconnected by a connecting mechanism including a pair of links so that the back stop is selectively adjusted upon rotation of the handle.
Inventors
- 👤 Glenn A. Knoblock, deceased
- 👤 Arnold B. Dammermann
- 👤 Larry DeKraker
- 👤 Kurt R. Heidmann
- 👤 Gordon J. Peterson
- 👤 Charles P. Roossien
- 👤 David S. Teppo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:42
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/023; A47C1/031; A47C1/032; A47C1/03205; A47C1/03233; A47C1/03238; A47C1/03255; A47C1/03261; A47C1/03272; A47C1/03274; A47C7/00; A47C7/02; A47C7/14; A47C7/24; A47C7/36; A47C7/40; A47C7/44; A47C7/445; A47C7/46; Y; Y10; Y10S; Y10S297/00; Y10S297/02
Claims Analysis
Total Claims: 121
Claim 1
Independent Claim
124 words
A seating product comprising: a base including side arms; a back structure including a back frame pivoted to the base at back pivots for movement between upright and reclined positions and a polymeric sheet supported in front of the back frame and adapted to support a seated user; and a seat pivoted to the back structure at seat pivots and operably supported for movement on the base, the back structure including right and left configured end sections positioned on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms, the side arms each defining a vertically-elongated shape with a free end adapted to telescopingly support an armrest for height adjustment.
Claim 2
Dependent Claim
124 words
A seating product comprising: a base including side arms; a back structure including a back frame pivoted to the base at back pivots for movement between upright and reclined positions and a polymeric sheet supported in front of the back frame and adapted to support a seated user; and a seat pivoted to the back structure at seat pivots and operably supported for movement on the base, the back structure including right and left configured end sections positioned on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms, the side arms each defining a vertically-elongated shape with a free end adapted to telescopingly support an armrest for height adjustment.
Claim 3
Dependent Claim
22 words
The seating product defined in claim 1 , wherein the configured end sections include structure defining both the back and seat pivots.
Claim 4
Dependent Claim
22 words
The seating product defined in claim 1 , wherein the side arms are elongated vertically and are stationary relative to the base.
Claim 5
Dependent Claim
34 words
The seating product defined in claim 1 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back structure with a synchronous motion.
Claim 6
Dependent Claim
28 words
The seating product defined in claim 4 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back structure.
Claim 7
Dependent Claim
23 words
The seating product defined in claim 4 , wherein the seat pivot is located below the back pivot when in the upright position.
Claim 8
Dependent Claim
19 words
The seating product defined in claim 6 , wherein the seat pivot is also rearward of the back pivot.
Claim 9
Dependent Claim
23 words
The seating product defined in claim 1 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 10
Dependent Claim
36 words
The seating product defined in claim 1 , wherein the back pivots are on an outboard side of the configured end sections and the seat pivots are on an inboard side of the configured end sections.
Claim 11
Dependent Claim
20 words
The seating product defined in claim 9 , wherein the seat pivots are located along outboard edges of the seat.
Claim 12
Dependent Claim
41 words
The seating product defined in claim 1 , wherein the configured end sections each are vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and the associated side arm.
Claim 13
Dependent Claim
26 words
The seating product defined in claim 1 , wherein the configured end sections have relatively flat inboard and outboard surfaces and are elongated vertically for strength.
Claim 14
Dependent Claim
18 words
The seating product defined in claim 1 , including an armrest supported on each of said side arms.
Claim 15
Dependent Claim
14 words
The seating product defined in claim 13 , wherein the armrests are vertically adjustable.
Claim 16
Dependent Claim
38 words
The seating product defined in claim 1 , wherein the polymeric sheet includes a flexible lumbar section, and including an energy mechanism on the polymeric sheet that biases the flexible lumbar section toward a forwardly protruding convex shape.
Claim 17
Dependent Claim
30 words
The seating product defined in claim 1 , wherein the polymeric sheet includes a back shell, the back frame being external to the back shell and supporting the back shell.
Claim 18
Dependent Claim
39 words
The seating product defined in claim 1 , wherein the base includes an underseat support, and the side arms include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 19
Dependent Claim
21 words
The seating product defined in claim 1 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 20
Dependent Claim
25 words
The seating product defined in claim 1 , wherein the side arms each define an internal cavity that opens upwardly for telescopingly supporting the armrest.
Claim 21
Dependent Claim
146 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; the base further including a center post and radially-extending legs with castors thereon; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back.
Claim 22
Dependent Claim
146 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; the base further including a center post and radially-extending legs with castors thereon; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back.
Claim 23
Dependent Claim
28 words
The seating product defined in claim 20 , wherein the ends of the frame member for the back comprise forwardly-extending support structures located inboard of the support members.
Claim 24
Dependent Claim
20 words
The seating product defined in claim 20 , wherein the pair of support members include spaced-apart vertically-extending vertically-elongated side arms.
Claim 25
Dependent Claim
22 words
The seating product defined in claim 20 , wherein the support members are elongated vertically and are stationary relative to the base.
Claim 26
Dependent Claim
33 words
The seating product defined in claim 20 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 27
Dependent Claim
27 words
The seating product defined in claim 24 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back.
Claim 28
Dependent Claim
23 words
The seating product defined in claim 24 , wherein the seat pivot is located below the back pivot when in the upright position.
Claim 29
Dependent Claim
36 words
The seating product defined in claim 20 , wherein the T-shaped arrangement on each side of the base is defined by overlapping portions of the ends and the support members that are visible from the sides.
Claim 30
Dependent Claim
23 words
The seating product defined in claim 20 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 31
Dependent Claim
23 words
The seating product defined in claim 20 , wherein the ends have flat inboard and outboard surfaces and are elongated vertically for strength.
Claim 32
Dependent Claim
33 words
The seating product defined in claim 20 , wherein the back includes a back shell and further includes a frame that is external to the back shell and that supports the back shell.
Claim 33
Dependent Claim
33 words
The seating product defined in claim 20 , wherein the back includes a flexible lumbar section, and including an energy mechanism that biases the flexible lumbar section toward a forwardly protruding convex shape.
Claim 34
Dependent Claim
18 words
The seating product defined in claim 20 , including an armrest supported on each of said support members.
Claim 35
Dependent Claim
14 words
The seating product defined in claim 32 , wherein the armrests are vertically adjustable.
Claim 36
Dependent Claim
167 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the ends each are vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and the associated support member of the base.
Claim 37
Dependent Claim
167 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the ends each are vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and the associated support member of the base.
Claim 38
Dependent Claim
33 words
The seating product defined in claim 34 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 39
Dependent Claim
27 words
The seating product defined in claim 34 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back.
Claim 40
Dependent Claim
23 words
The seating product defined in claim 34 , wherein the seat pivot is located below the back pivot when in the upright position.
Claim 41
Dependent Claim
21 words
The seating product defined in claim 34 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 42
Dependent Claim
158 words
A seating product comprising: a base including a pair of vertical support members disposed on respective sides of the base; a seat operably supported on the base, the support members each having a free end extending upwardly adjacent the seat and being adapted to telescopingly and adjustably support an armrest; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; a spring operably biasing the back assembly toward the upright position; and an armrest supported on each of said vertical support members.
Claim 43
Dependent Claim
158 words
A seating product comprising: a base including a pair of vertical support members disposed on respective sides of the base; a seat operably supported on the base, the support members each having a free end extending upwardly adjacent the seat and being adapted to telescopingly and adjustably support an armrest; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; a spring operably biasing the back assembly toward the upright position; and an armrest supported on each of said vertical support members.
Claim 44
Dependent Claim
22 words
The seating product defined in claim 39 , wherein the support structure includes structure defining both the back and seat pivot axes.
Claim 45
Dependent Claim
26 words
The seating product defined in claim 39 , wherein the base includes side arms that are elongated vertically and that are stationary relative to the base.
Claim 46
Dependent Claim
35 words
The seating product defined in claim 39 , wherein the seat and back pivot axes are spaced apart and located so that the seat moves upon recline of the back assembly with a synchronous motion.
Claim 47
Dependent Claim
20 words
The seating product defined claim 39 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 48
Dependent Claim
25 words
The seating product defined in claim 39 , wherein the support members each define an internal cavity that opens upwardly for telescopingly supporting the armrest.
Claim 49
Dependent Claim
23 words
The seating product defined in claim 39 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 50
Dependent Claim
44 words
The seating product defined in claim 39 , wherein back pivots that form the back pivot axis are on an outboard side of the support structure and seat pivots that form the seat pivot axis are on an inboard side of the support structure.
Claim 51
Dependent Claim
43 words
The seating product defined in claim 39 , wherein the support structure is vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and an associated upwardly-extending side arm on the base.
Claim 52
Dependent Claim
17 words
The seating product defined in claim 39 , including armrests that vertically adjustably engage the support members.
Claim 53
Dependent Claim
14 words
The seating product defined in claim 39 , wherein the armrests are vertically adjustable.
Claim 54
Dependent Claim
23 words
The seating product defined in claim 39 , wherein the spring biases the seat, and the seat in turn biases the back assembly.
Claim 55
Dependent Claim
34 words
The seating product defined in claim 39 , wherein the back assembly includes a back shell and further includes a frame that is external to the back shell and that supports the back shell.
Claim 56
Dependent Claim
139 words
A seating product comprising: a base including vertical support members; a seat operably supported on the base; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position; including an armrest supported on each of said vertical support members; wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 57
Dependent Claim
139 words
A seating product comprising: a base including vertical support members; a seat operably supported on the base; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position; including an armrest supported on each of said vertical support members; wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 58
Dependent Claim
219 words
A seating product comprising: a mobile base including a plurality of legs, a central pedestal and a control having a pair of support members disposed on respective sides thereof; a back assembly pivoted to the support members at a first pivot axis for movement between upright and reclined positions, said a back assembly including a back shaped and adapted to support a seated user, said back assembly further including a pair of forwardly extending support structures located proximate the sides of a lower portion thereof, each of the forwardly extending support structures being pivotably connected to an associated one of the support members on the base to allow movement of the back between the upright and reclined positions; a seat operably supported on the base between said support members, said seat being pivotably coupled to the forwardly extending support structures at a second pivot axis spaced from the first pivot axis in an arrangement causing the seat to move in response to recline of the back; and an armrest supported on each of the support members; the forwardly extending support structures and the support members forming a visible T-shaped overlapping arrangement, with the support structure extending rearwardly from overlapping adjacent portions defined by the overlapping arrangement and the support structures extending upwardly and downwardly from the overlapping adjacent portions.
Claim 59
Dependent Claim
219 words
A seating product comprising: a mobile base including a plurality of legs, a central pedestal and a control having a pair of support members disposed on respective sides thereof; a back assembly pivoted to the support members at a first pivot axis for movement between upright and reclined positions, said a back assembly including a back shaped and adapted to support a seated user, said back assembly further including a pair of forwardly extending support structures located proximate the sides of a lower portion thereof, each of the forwardly extending support structures being pivotably connected to an associated one of the support members on the base to allow movement of the back between the upright and reclined positions; a seat operably supported on the base between said support members, said seat being pivotably coupled to the forwardly extending support structures at a second pivot axis spaced from the first pivot axis in an arrangement causing the seat to move in response to recline of the back; and an armrest supported on each of the support members; the forwardly extending support structures and the support members forming a visible T-shaped overlapping arrangement, with the support structure extending rearwardly from overlapping adjacent portions defined by the overlapping arrangement and the support structures extending upwardly and downwardly from the overlapping adjacent portions.
Claim 60
Dependent Claim
18 words
The seating product defined in claim 53 , wherein the armrests are vertically adjustable on the support members.
Claim 61
Dependent Claim
25 words
The seating product defined in claim 53 , wherein the support structures include configured end sections that define both the first and second pivot axes.
Claim 62
Dependent Claim
22 words
The seating product defined in claim 53 , wherein the support members are elongated vertically and are stationary relative to the base.
Claim 63
Dependent Claim
34 words
The seating product defined in claim 53 , wherein the first and second pivot axes are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 64
Dependent Claim
28 words
The seating product defined in claim 57 , wherein the first and second pivot axes are located so that the seat moves forward upon recline of the back.
Claim 65
Dependent Claim
23 words
The seating product defined in claim 53 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 66
Dependent Claim
45 words
The seating product defined in claim 53 , wherein the support structures include configured end sections that each are vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and the associated support member.
Claim 67
Dependent Claim
164 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the base includes an underseat support, and the support members include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 68
Dependent Claim
164 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the base includes an underseat support, and the support members include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 69
Dependent Claim
152 words
A seating product comprising: a base; a seat operably supported on the base; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position, including an armrest supported on each of said vertical support members; wherein the back assembly includes a flexible lumbar section, and including an energy mechanism on the back assembly that biases the flexible lumbar section toward a forwardly protruding convex shape.
Claim 70
Dependent Claim
152 words
A seating product comprising: a base; a seat operably supported on the base; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position, including an armrest supported on each of said vertical support members; wherein the back assembly includes a flexible lumbar section, and including an energy mechanism on the back assembly that biases the flexible lumbar section toward a forwardly protruding convex shape.
Claim 71
Dependent Claim
212 words
A chair comprising: a base including plurality of castored legs, a central pedestal and a control having a pair of support members disposed on respective sides thereof; a back assembly pivoted to the support members at a first pivot axis for movement between upright and reclined positions, said a back assembly including a back shaped and adapted to support a seated user, said back assembly further including a pair of forwardly extending support structures located proximate the sides of a lower portion thereof, each of the forwardly extending support structures being pivotably connected to an associated one of the support members on the base to allow movement of the back between the upright and reclined positions; and a seat operably supported on the base between said support members, said seat being pivotably coupled to the forwardly extending support structures at a second pivot axis spaced vertically from the first pivot axis in an arrangement causing the seat to move in response to recline of the back; the forwardly extending support structures and the pair of support members forming on each side of the seat a T-shaped overlapping structural arrangement that both pivotally supports the back assembly on the base and also movably supports a portion of the seat on the back assembly.
Claim 72
Dependent Claim
212 words
A chair comprising: a base including plurality of castored legs, a central pedestal and a control having a pair of support members disposed on respective sides thereof; a back assembly pivoted to the support members at a first pivot axis for movement between upright and reclined positions, said a back assembly including a back shaped and adapted to support a seated user, said back assembly further including a pair of forwardly extending support structures located proximate the sides of a lower portion thereof, each of the forwardly extending support structures being pivotably connected to an associated one of the support members on the base to allow movement of the back between the upright and reclined positions; and a seat operably supported on the base between said support members, said seat being pivotably coupled to the forwardly extending support structures at a second pivot axis spaced vertically from the first pivot axis in an arrangement causing the seat to move in response to recline of the back; the forwardly extending support structures and the pair of support members forming on each side of the seat a T-shaped overlapping structural arrangement that both pivotally supports the back assembly on the base and also movably supports a portion of the seat on the back assembly.
Claim 73
Dependent Claim
19 words
The chair defined in claim 63 , wherein the T-shaped overlapping structural arrangement is outwardly visible on each side.
Claim 74
Dependent Claim
34 words
The chair defined in claim 63 , wherein the second pivot axis is located below the first pivot axis in an arrangement that causes the seat to move forward upon recline of the back.
Claim 75
Dependent Claim
37 words
The chair defined in claim 63 , wherein the second pivot axis is located relative to the first pivot axis in an arrangement that causes the seat to move in part upwardly upon recline of the back.
Claim 76
Dependent Claim
25 words
The chair defined in claim 63 , wherein the support structures include configured end sections with structure defining both the first and second pivot axes.
Claim 77
Dependent Claim
21 words
The chair defined in claim 63 , wherein the support members are elongated vertically and are stationary relative to the base.
Claim 78
Dependent Claim
33 words
The chair defined in claim 63 , wherein the first and second pivot axes are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 79
Dependent Claim
27 words
The chair defined in claim 69 , wherein the first and second pivot axes are located so that the seat moves forward upon recline of the back.
Claim 80
Dependent Claim
22 words
The chair defined in claim 63 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 81
Dependent Claim
37 words
The chair defined in claim 63 , wherein the first pivot axis is on an outboard side of the associated support structures and the second pivot axis is on an inboard side of the associated support structures.
Claim 82
Dependent Claim
44 words
The chair defined in claim 72 , wherein the back assembly includes configured end sections that each are vertically elongated and define a narrow horizontal dimension shaped to fit within a space between an associated edge of the seat and the associated support members.
Claim 83
Dependent Claim
30 words
The chair defined in claim 72 , wherein the back assembly includes configured end sections that each have relatively flat inboard and outboard surfaces and are elongated vertically for strength.
Claim 84
Dependent Claim
17 words
The chair defined in claim 63 , including an armrest supported on each of said support members.
Claim 85
Dependent Claim
13 words
The chair defined in claim 75 , wherein the armrest is vertically adjustable.
Claim 86
Dependent Claim
36 words
The chair defined in claim 63 , wherein the back assembly includes a flexible lumbar section, and including an energy mechanism on back assembly that biases the flexible lumbar section toward a forwardly protruding convex shape.
Claim 87
Dependent Claim
191 words
A seating product comprising: a base including a pair of support members disposed on respective sides of the base; a seat operably supported on the base, the support members each having a free end extending upwardly adjacent the seat and being adapted to telescopingly and adjustably support an armrest; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position; wherein the seat and back pivot axes are spaced apart and located so that the seat moves upon recline of the back assembly with a synchronous motion; wherein the seat pivot axis is located below the back pivot axis when in the upright position.
Claim 88
Dependent Claim
191 words
A seating product comprising: a base including a pair of support members disposed on respective sides of the base; a seat operably supported on the base, the support members each having a free end extending upwardly adjacent the seat and being adapted to telescopingly and adjustably support an armrest; a back assembly pivoted to the base at a back pivot axis for movement between upright and reclined positions and having forwardly extending support structure proximate its lower portion, the forwardly extending support structure forming at least part of a connection of the back assembly to the base; said seat being pivoted to the forwardly extending support structure at a seat pivot axis spaced from the back pivot axis in an arrangement that causes the seat to move in response to recline of the back assembly; and a spring operably biasing the back assembly toward the upright position; wherein the seat and back pivot axes are spaced apart and located so that the seat moves upon recline of the back assembly with a synchronous motion; wherein the seat pivot axis is located below the back pivot axis when in the upright position.
Claim 89
Dependent Claim
20 words
The seating product defined in claim 78 , wherein the seat pivot axis is rearward of the back pivot axis.
Claim 90
Dependent Claim
27 words
The seating product defined in claim 78 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back.
Claim 91
Dependent Claim
21 words
The seating product defined in claim 78 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 92
Dependent Claim
23 words
The seating product defined in claim 78 , wherein the seat also has a front portion operably supported for movement on the base.
Claim 93
Dependent Claim
198 words
A seating product comprising: a base including side arms; a back structure pivoted to the base at back pivots for movement between upright and reclined positions; a seat pivoted to the back structure at seat pivots and operably supported for movement on the base, the back structure including right and left configured end sections positioned on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; and a spring operably biasing the back structure continuously toward the upright position; wherein the back structure includes a lower frame with forwardly extending configured ends that overlap with and define with the side arms a T-shaped arrangement on each side of the seat, wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a asynchronous motion, and including an armrest support on each of the side arms, the armrests being vertically adjustable; and wherein the base includes an underseat support, and the side arms each include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 94
Dependent Claim
198 words
A seating product comprising: a base including side arms; a back structure pivoted to the base at back pivots for movement between upright and reclined positions; a seat pivoted to the back structure at seat pivots and operably supported for movement on the base, the back structure including right and left configured end sections positioned on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; and a spring operably biasing the back structure continuously toward the upright position; wherein the back structure includes a lower frame with forwardly extending configured ends that overlap with and define with the side arms a T-shaped arrangement on each side of the seat, wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a asynchronous motion, and including an armrest support on each of the side arms, the armrests being vertically adjustable; and wherein the base includes an underseat support, and the side arms each include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 95
Dependent Claim
21 words
The seating product defined in claim 83 , wherein the T-shaped arrangement is outwardly visible on each side of the base.
Claim 96
Dependent Claim
28 words
The seating product defined in claim 83 , wherein the seat and back pivots are located so that the seat moves forwardly upon recline of the back structure.
Claim 97
Dependent Claim
21 words
The seating product defined in claim 83 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 98
Dependent Claim
145 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the ends include structure defining both the back and seat pivots.
Claim 99
Dependent Claim
145 words
A seating product comprising: a seat; a base including a pair of support members disposed on respective sides of the base and extending above the seat; a back shaped and adapted to support a seated user, said back having a frame member with ends extending downwardly and forwardly from the back on each side of the back to a position adjacent the support members to thus define a T-shaped arrangement with the support members, each of the frame member ends being pivotally connected to an associated one of the support members on the base to allow movement of the back between upright and reclined positions; and the seat being pivotally supported on each of the sides of the base and coupled to the frame member ends for movement upon recline of the back, wherein the ends include structure defining both the back and seat pivots.
Claim 100
Dependent Claim
18 words
The seating product defined claim 87 , wherein the seat pivot is also rearward of the back pivot.
Claim 101
Dependent Claim
36 words
The seating product defined in claim 87 , wherein the back pivots are on an outboard side of the ends of the frame member and the seat pivots are on an inboard side of the ends.
Claim 102
Dependent Claim
20 words
The seating product defined in claim 89 , wherein the seat pivots are located along outboard edges of the seat.
Claim 103
Dependent Claim
33 words
The seating product defined in claim 87 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 104
Dependent Claim
27 words
The seating product defined in claim 87 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back.
Claim 105
Dependent Claim
23 words
The seating product defined in claim 87 , wherein the seat pivot is located below the back pivot when in the upright position.
Claim 106
Dependent Claim
21 words
The seating product defined in claim 87 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 107
Dependent Claim
148 words
A seating product comprising: a base including side arms; a back structure pivoted directly to the side arms of the base at back pivots for movement between upright and reclined positions; and a seat pivoted to the back structure at rear seat pivots and operably supported for movement on the base, the back structure including a lower frame positioned rearward of the side arms and further including right and left configured end sections extending forwardly from the lower frame to locations on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; including an armrest supported on each of the side arms; wherein the base includes an underseat support, and the side arms each include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 108
Dependent Claim
148 words
A seating product comprising: a base including side arms; a back structure pivoted directly to the side arms of the base at back pivots for movement between upright and reclined positions; and a seat pivoted to the back structure at rear seat pivots and operably supported for movement on the base, the back structure including a lower frame positioned rearward of the side arms and further including right and left configured end sections extending forwardly from the lower frame to locations on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; including an armrest supported on each of the side arms; wherein the base includes an underseat support, and the side arms each include a horizontal portion extending laterally from the underseat support and a vertical portion extending upwardly from the horizontal portion.
Claim 109
Dependent Claim
24 words
The seating product defined in claim 95 , wherein the lower frame, configured end sections, and side arms form a visible T-shaped intersecting arrangement.
Claim 110
Dependent Claim
28 words
The seating product defined in claim 95 , wherein the seat and back pivots are located so that the seat moves forwardly upon recline of the back structure.
Claim 111
Dependent Claim
28 words
The seating product defined in claim 95 , including a back stop constructed to selectively stop recline of the back structure in at least one partial recline position.
Claim 112
Dependent Claim
32 words
The seating product defined in claim 98 , wherein the back stop is constructed to selectively prevent recline of the back, such that the back structure is held in the upright position.
Claim 113
Dependent Claim
34 words
The seating product defined in claim 95 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back structure with a synchronous motion.
Claim 114
Dependent Claim
14 words
The seating product defined in claim 95 , wherein the armrests are vertically adjustable.
Claim 115
Dependent Claim
129 words
A seating product comprising: a base including side arms; a back structure pivoted directly to the side arms of the base at back pivots for movement between upright and reclined positions; and a seat pivoted to the back structure at rear seat pivots and operably supported for movement on the base, the back structure including a lower frame positioned rearward of the side arms and further including right and left configured end sections extending forwardly from the lower frame to locations on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; including an armrest supported on each of the side arms; wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 116
Dependent Claim
129 words
A seating product comprising: a base including side arms; a back structure pivoted directly to the side arms of the base at back pivots for movement between upright and reclined positions; and a seat pivoted to the back structure at rear seat pivots and operably supported for movement on the base, the back structure including a lower frame positioned rearward of the side arms and further including right and left configured end sections extending forwardly from the lower frame to locations on opposite sides of the seat and that are each located generally between the sides of the seat and associated ones of the side arms; including an armrest supported on each of the side arms; wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 117
Dependent Claim
33 words
The seating product defined in claim 102 , wherein the seat and back pivots are spaced apart and located so that the seat moves upon recline of the back with a synchronous motion.
Claim 118
Dependent Claim
27 words
The seating product defined in claim 102 , wherein the seat and back pivots are located so that the seat moves forward upon recline of the back.
Claim 119
Dependent Claim
23 words
The seating product defined in claim 102 , wherein the seat pivot is located below the back pivot when in the upright position.
Claim 120
Dependent Claim
21 words
The seating product defined in claim 102 , wherein the base includes a center post and radially-extending legs with castors thereon.
Claim 121
Dependent Claim
23 words
The seating product defined in claim 102 , wherein the seat also has a front portion operably supported for movement on the base.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-10-02 | 2010-04-03 | 2010-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-10-02 | 2014-04-03 | 2014-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-10-02 | 2018-04-03 | 2018-10-03 | $7700.00 | Window Closed / Lapsed |