US3847433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacking chair
Assignee: American Seating Co
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Filing: 1973-07-12
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Granted: 1974-11-12
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Expires: 1993-07-12
Abstract
Abstract A chair includes a one-piece tubular member forming a wraparound back frame and delta-shaped side leg supports. A contoured back is secured to the back frame, and a separate contoured seat is attached to the delta leg supports. In one embodiment, the seat is pivotally attached to the leg supports to enable the seat to be raised to permit a person to pass through a row of such chairs.
Inventors
- 👤 Ryn A Van
- 👤 K Hozeski
- 👤 H Acton
- 👤 R Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:52
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/12; A47C1/124; A47C3/00; A47C3/04; A47C5/00; A47C5/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
203 words
A chair comprising: a frame formed from a continuous piece of tubing and including a horizontal curved portion forming a wraparound back panel support, said tubing extending horizontally forwardly of said wrap-around portion to provide arm rests, thence extending downwardly and rearwardly to provide inclined arm rest supports and rear leg portions, thence forwardly to provide horizontal floor runners, thence upwardly and rearwardly to provide forward legs and connected at the upper portion of said forward legs to the juncture between said arm rest support and the associated rear leg; a curved, contoured back panel secured to the wrap-around portion of said frame; a seat panel; tubular seat frame means connected to said seat panel for supporting the same; a brace connected to said tubular frame at the upper portion of said forward legs to stabilize said frame and to support said seat when it is in a lowered, occupied position; and means for pivotally connecting said seat frame to said frame whereby said seat panel may be selectively lowered to an occupied position wherein said seat panel is supported by said brace, or raised, thereby permitting an occupant to step between said runners to permit passage of another person down a row.
Claim 2
Dependent Claim
203 words
A chair comprising: a frame formed from a continuous piece of tubing and including a horizontal curved portion forming a wraparound back panel support, said tubing extending horizontally forwardly of said wrap-around portion to provide arm rests, thence extending downwardly and rearwardly to provide inclined arm rest supports and rear leg portions, thence forwardly to provide horizontal floor runners, thence upwardly and rearwardly to provide forward legs and connected at the upper portion of said forward legs to the juncture between said arm rest support and the associated rear leg; a curved, contoured back panel secured to the wrap-around portion of said frame; a seat panel; tubular seat frame means connected to said seat panel for supporting the same; a brace connected to said tubular frame at the upper portion of said forward legs to stabilize said frame and to support said seat when it is in a lowered, occupied position; and means for pivotally connecting said seat frame to said frame whereby said seat panel may be selectively lowered to an occupied position wherein said seat panel is supported by said brace, or raised, thereby permitting an occupant to step between said runners to permit passage of another person down a row.
Claim 3
Dependent Claim
77 words
The structure of claim 1 wherein said floor runners are parallel, and wherein each of said front legs is offset inwardly of its associated runner and rear leg to permit one of said chairs to be assembled in stacked relation with a similar chair by placing the rear legs of an upper chair over the forward legs of a lower chair until the arm rests and rear legs of the stacked chairs are in close proximal relation.
Claim 4
Dependent Claim
80 words
The structure of claim 1 wherein said first mentioned frame further includes a horizontal portion extending from the top of each of said forward legs rearwardly for connection to the junction between the associated arm rest and rear leg portion, and wherein said brace compriSes a concave portion rigidly secured at either side to said horizontal portions extending rearwardly from the upper parts of said front legs and adapted to receive and support said seat panel in an occupied position.
Claim 5
Dependent Claim
150 words
The structure of claim 3 wherein said seat panel comprises a tractor-type contoured plastic shell providing a lowered bucket seat portion and extending upwardly around the rear spinal area of an occupant, and wherein said seat frame includes a generally U-shaped forward tubular frame portion extending about the sides and front of said seat shell and beneath it; a rear tubular frame portion; and first and second side brackets connecting said U-shaped forward seat portion with said curved seat frame portion at either side with the rear curved portion extending outwardly of said U-frame portion and providing a continuous line with the horizontal frame portion of said main frame extending rearwardly of an associated forward leg thereof, each of said brackets further providing an apertured portion pivotally connecting said seat frame to said main frame at the rear extension of said horizontally extending portions extending rearwardly of said forward legs.
Claim 6
Dependent Claim
43 words
The structure of claim 4 wherein said seat panel is molded and further defines spaced rib means for providing channels for receiving said U-shaped forward seat frame portion and a forward pocket for receiving the forward portion of said U-shaped seat frame portion.
Claim 7
Dependent Claim
55 words
The structure of claim 5 further comprising additional rib means on the lower portion of said seat panel, both forward and aft of said curved portion and conforming to the curve thereof for holding the same; and further including bracket means for securing said seat panel to said rear curved portion of said seat frame.
Claim 8
Dependent Claim
81 words
The structure of claim 1 wherein said back panel is inclined upwardly and rearwardly in cross section from a location above the termination of said seat panel and is further curved to wrap around the back of an occupant, the rear surface of said back panel providing vertically spaced rearwardly extending ribs defining a channel for receiving the wrap-around portion of said main frame; and threaded fastener means for securing said back panel to said wrap-around portion of said main frame.
Claim 9
Dependent Claim
89 words
The structure of claim 7 wherein each of said ribs of said back panel are further provided with opposing nibs extending inwardly of said channel and spaced apart from each other and from the rear surface of said back panel to provide a horizontal slot means to slidably receive a threaded Tee-nut; and wherein said threaded fastener means includes a Tee-nut slidably received in an associated slot of said channel; and a machine screw extending through said wrap-around portion of said main frame and threadedly engaging an associated Tee-nut.
Claim 10
Dependent Claim
121 words
The structure of claim 1 further comprising a first coupling element on the left rear leg of said chair and a second complementary coupling element on the right rear leg of said chair, one of said coupling elements including an upwardly-extending hook member spaced outwardly from its associated rear leg and the other coupling element including a downwardly extending finger spaced outwardly of its associated leg, said coupling elements being arranged to connect with the complementary element of an adjacent chair spaced beside it to hold the adjacent rear legs of said adjacent chairs in contacting relation, whereby when a row of said chairs is assembled, the length of the row is a multiple of the width of an individual chair.
Claim 11
Dependent Claim
105 words
The structure of claim 1 further comprising a mobile dolly for transporting a plurality of said chairs in stacked relation, said dolly comprising upwardly extending brace members adapted to receive a lowermost chair and to support said chair by engaging said main frame at the juncture between an arm rest and and an arm rest support on either side thereof; and a lower platform including side pockets for receiving said main frame at the junCture between said floor runner and said associated rear legs, said chairs being tilted when thus stacked such that said floor runners form an angle of approximately 41* with the horizontal.
Claim 12
Dependent Claim
185 words
A chair comprising: a supporting frame formed from a continuous piece of tubing and including a horizontal curved portion forming a wrap-around back support panel, said tubing extending horizontal forwardly of said wrap-around portion to provide arm rests, thence extending downwardly and rearwardly to provide inclined arm rest supports and rear leg portions, thence forwardly to provide horizontal floor runners, thence inwardly and thence upwardly and rearwardly to provide inwardly offset forward legs and connected at the upper portion of said forward legs to the juncture between said arm rest support and the associated rear leg, and thence smoothly curved in a seat wrap-around curve; a forward seat panel comprising a generally U-shaped forwardly extending tubular member connected at either side to said main supporting frame adjacent the portions thereof where said seat wrap-around curve begins, and a transverse concave brace member interconnecting the distal ends of said U-shaped seat support; a curved, contoured back panel secured to the wrap-around back portion of said frame; and a separate seat panel secured to the seat frame and to the seat wrap-around portion of said main frame.
Claim 13
Dependent Claim
185 words
A chair comprising: a supporting frame formed from a continuous piece of tubing and including a horizontal curved portion forming a wrap-around back support panel, said tubing extending horizontal forwardly of said wrap-around portion to provide arm rests, thence extending downwardly and rearwardly to provide inclined arm rest supports and rear leg portions, thence forwardly to provide horizontal floor runners, thence inwardly and thence upwardly and rearwardly to provide inwardly offset forward legs and connected at the upper portion of said forward legs to the juncture between said arm rest support and the associated rear leg, and thence smoothly curved in a seat wrap-around curve; a forward seat panel comprising a generally U-shaped forwardly extending tubular member connected at either side to said main supporting frame adjacent the portions thereof where said seat wrap-around curve begins, and a transverse concave brace member interconnecting the distal ends of said U-shaped seat support; a curved, contoured back panel secured to the wrap-around back portion of said frame; and a separate seat panel secured to the seat frame and to the seat wrap-around portion of said main frame.
References Cited (Backward Citations)
US2085804A
Cited
CH367948A
Cited
FR1337392A
Cited
US3173723A
Cited
US3338591A
Cited
US3446530A
Cited
US3614157A
Cited
US3612565A
Cited
US3708202A
Cited
US3724897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |