US5577801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active dynamic seat
Assignee: Individual
•
Filing: 1993-03-29
•
Granted: 1996-11-26
•
Expires: 2013-03-29
Abstract
Abstract An active dynamic seat has a base, an intermediate piece linked to the base and a seating part linked to the intermediate piece. The seating part is made of two pieces. The two halves of the seating part are resiliently linked in the vertical direction to the intermediate piece, independently from each other, and have each a support part and a seating half arranged thereon. Each seating half of a seating part half is mounted so as to tilt backwards and forwards on the support part.
Inventors
- 👤 Josef Glockl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:22
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C7/00; A47C7/02; A47C7/024; A47C7/14; A47C7/144; A47C9/00; A47C9/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
134 words
An active dynamic seat comprising: a base; an intermediate piece having an upper end and a lower end, the lower end being connected to the base; a seat part; and connection means for connecting the intermediate piece to the seat part; wherein the seat part includes two seat halves, the seat halves being connected separately by the connection means, substantially vertically resiliently to the intermediate piece, each seat half including a plate and a supporting part, the plate being pivotably supported on the supporting part to be tiltable in forward and rearward directions, wherein the connection means include a pair of parallel double rocker arms, one of the pair of parallel double rocker arms connecting each supporting part to the intermediate piece, and a first spring means for biasing each parallel double rocker arm.
Claim 2
Dependent Claim
134 words
An active dynamic seat comprising: a base; an intermediate piece having an upper end and a lower end, the lower end being connected to the base; a seat part; and connection means for connecting the intermediate piece to the seat part; wherein the seat part includes two seat halves, the seat halves being connected separately by the connection means, substantially vertically resiliently to the intermediate piece, each seat half including a plate and a supporting part, the plate being pivotably supported on the supporting part to be tiltable in forward and rearward directions, wherein the connection means include a pair of parallel double rocker arms, one of the pair of parallel double rocker arms connecting each supporting part to the intermediate piece, and a first spring means for biasing each parallel double rocker arm.
Claim 3
Dependent Claim
24 words
The seat according to claim 1, wherein the base further includes a supporting bearing portion, the portion being slightly curved downwardly in convex fashion.
Claim 4
Dependent Claim
37 words
The seat according to claim 1, wherein each seat half further includes a seat spring means disposed between the plate and the supporting part for restoring deflection in the forward and rearward directions to a neutral position.
Claim 5
Dependent Claim
24 words
The seat according to claim 3, wherein the base further includes a supporting bearing portion, the portion being slightly curved downwardly in convex fashion.
Claim 6
Dependent Claim
41 words
The seat according to claim 1, wherein the seat part further includes a seat cushion selected from a group consisting of a flexible, one-piece seat cushion and a two-piece seat cushion, said seat cushion being disposed on the two seat halves.
Claim 7
Dependent Claim
37 words
The seat according to claim 5, wherein each seat half further includes a seat spring means disposed between the plate and the supporting part for restoring deflection in the forward and rearward directions to a neutral position.
Claim 8
Dependent Claim
24 words
The seat according to claim 5, wherein said seat cushion has a core structure, said core structure being substantially dimensionally stable even under load.
Claim 9
Dependent Claim
17 words
The seat according to claim 1, wherein the two seat halves are flexibly connected with each other.
Claim 10
Dependent Claim
37 words
The seat according to claim 8, wherein each seat half further includes a seat spring means disposed between the plate and the supporting part for restoring deflection in the forward and rearward directions to a neutral position.
Claim 11
Dependent Claim
43 words
The seat according to claim 8 wherein each seat half includes a seat cushion, each said seat cushion being releasably connected to the corresponding seat half, the seat cushion having a shape selected from the group consisting of planar, convex, concave, and wedge.
Claim 12
Dependent Claim
43 words
The seat according to claim 8, wherein each seat half includes a seat cushion, each said seat cushion being fixedly connected to the corresponding seat half, the seat cushion having a shape selected from the group consisting of planar, convex, concave, and wedge.
Claim 13
Dependent Claim
24 words
The seat according to claim 11, wherein said seat cushion has a core structure, said core structure being substantially dimensionally stable even under load.
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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) | 1999-11-26 | 2000-05-27 | 2000-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-26 | 2004-05-27 | 2004-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-26 | 2008-05-27 | 2008-11-26 | $7700.00 | Window Closed / Lapsed |