Patent US3853202A successfully refreshed from Google Patents.
Patent US4616874A successfully refreshed from Google Patents.
US4616874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seat assembly
Assignee: Isringhausen GmbH and Co KG
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Filing: 1984-05-29
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Granted: 1986-10-14
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Expires: 2004-05-29
Abstract
Abstract A vehicle seat assembly is for a vehicle seat having a back rest and a seat surface. The back rest is adjustable in inclination and the seat surface is adjustable in height and inclination. To reduce the height of the assembly and to enable the height and inclination of the seat surface to be adjusted independently of the back rest inclination, the seat frame is supported at its front end by levers. At the rear end of the seat frame is a support frame and a back rest frame, the back rest frame being movable relative to the support frame to raise and lower the rear end of the seat frame. The support frame and back rest frame are movable together about a horizontal axis to adjust the inclination of the back rest and the seat frame is suspended at its rear end on the back rest frame.
Inventors
- 👤 Helge Pietsch
- 👤 Manfred Rink
- 👤 Christian Suss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:15
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/2222; B60N2/0224; B60N2/02246; B60N2/04; B60N2/16; B60N2/18; B60N2/1807; B60N2/181; B60N2/1842; B60N2/185; B60N2/1853; B60N2/23; B60N2/233
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
A seat assembly for a vehicle seat comprising: (a) an underframe; (b) a seat frame above said underframe; (c) a pair of spaced support levers supporting the forward portion of said seat frame on said underframe so that the forward portion of said seat frame is adjustably positionable in spaced relation above the forward portion of said underframe; (d) a support frame pivotally mounted on the rear portion of said underframe so that it is pivotable toward and away from said seat frame about an axis located in the rear portion of said underframe; (e) a backrest frame slidably mounted on said support frame so that it is movable thereon toward and away from said axis but so that it is adjustably securable with respect to said suport frame; and (f) means for maintaining said backrest frame in adjusted position relative to said support frame; (g) means pivotally suspending the rear portion of said seat frame from said backrest frame; (h) whereby vertical movement of said backrest frame effects vertical movement of the rear portion of said seat frame.
Claim 2
Dependent Claim
179 words
A seat assembly for a vehicle seat comprising: (a) an underframe; (b) a seat frame above said underframe; (c) a pair of spaced support levers supporting the forward portion of said seat frame on said underframe so that the forward portion of said seat frame is adjustably positionable in spaced relation above the forward portion of said underframe; (d) a support frame pivotally mounted on the rear portion of said underframe so that it is pivotable toward and away from said seat frame about an axis located in the rear portion of said underframe; (e) a backrest frame slidably mounted on said support frame so that it is movable thereon toward and away from said axis but so that it is adjustably securable with respect to said suport frame; and (f) means for maintaining said backrest frame in adjusted position relative to said support frame; (g) means pivotally suspending the rear portion of said seat frame from said backrest frame; (h) whereby vertical movement of said backrest frame effects vertical movement of the rear portion of said seat frame.
Claim 3
Dependent Claim
24 words
The seat assembly of claim 1 further comprising means mounted on said backrest frame for moving said backrest frame relative to said support frame.
Claim 4
Dependent Claim
35 words
In the seat assembly of claim 1 said pivotal suspending means comprising a pair of spaced pivot links, each of said pivot links being pivotally attached to both said backrest frame and said seat frame.
References Cited (Backward Citations)
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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) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |