US3600033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fold-up seat
Assignee: Lear Siegler Seating Corp
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Filing: 1969-11-05
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Granted: 1971-08-17
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Expires: 1989-11-05
Abstract
Abstract A collapsible unison acting spring suspended seat comprising a seat having a pivotal front leg assembly, a spring biased arm resiliently supporting the back of the seat when in the occupiable condition, a backrest pivotally connected to the rear of the seat and a vertical track for permitting the backrest to displace vertically in unison with the rear of the seat. The backrest may be latched in a raised position which permits the seat to pivot into a collapsed position wherein it hangs beneath the backrest and between the backrest and the floor.
Inventors
- 👤 Carl J Holdampf
- 👤 Randal T Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:46
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/30; B60N2/3038; B60N2/304; B60N2/3045; B60N2/3047; A; A47; A47C; A47C1/00; A47C1/02; A47C1/031; A47C1/032; A47C1/03261; A47C1/03272; A47C1/03274; A47C7/00; A47C7/56
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
97 words
A collapsible unison action seat assembly comprising: a seat, selectively operable means for supporting the front of the seat relative to a first support surface; a backrest; means supporting the bacKrest for vertical displacement relative to a second support surface; the backrest being pivotally connected to the rear of the seat thereby to permit the seat to collapse beneath the backrest when the selectively operable means is rendered inoperable and resilient support means on the second support surface and engageable with the rear of the seat to resiliently support the seat and backrest in the vertical direction.
Claim 2
Dependent Claim
97 words
A collapsible unison action seat assembly comprising: a seat, selectively operable means for supporting the front of the seat relative to a first support surface; a backrest; means supporting the bacKrest for vertical displacement relative to a second support surface; the backrest being pivotally connected to the rear of the seat thereby to permit the seat to collapse beneath the backrest when the selectively operable means is rendered inoperable and resilient support means on the second support surface and engageable with the rear of the seat to resiliently support the seat and backrest in the vertical direction.
Claim 3
Dependent Claim
26 words
A seat assembly as defined in claim 1 wherein the selectively operable means includes at least one leg pivotally connected to the front of the seat.
Claim 4
Dependent Claim
21 words
A seat assembly as defined in claim 2 including means on the seat for retaining the leg in the inoperable position.
Claim 5
Dependent Claim
50 words
A seat assembly as defined in claim 1 wherein the resilient support means includes at least one rigid arm pivotally supported on the second surface, a roller on the end of the arm and engageable with the seat, and a spring tending to bias the arm and seat vertically upward.
Claim 6
Dependent Claim
26 words
A seat assembly as defined in claim 1 wherein the means supporting the backrest includes latch means for selectively latching the backrest in an upper position.
Claim 7
Dependent Claim
34 words
A seat assembly as defined in claim 5 wherein the means supporting the backrest includes a vertical track having a fixed portion on the second support surface and a displaceable portion on the backrest.
Claim 8
Dependent Claim
25 words
A seat assembly as defined in claim 1 including means on the second surface for maintaining the seat in the collapsed position beneath the backrest.
Claim 9
Dependent Claim
129 words
A collapsible seat assembly comprising: a seat having a frame; at least one leg pivotally connected to the front of the frame for vertical support thereof relative to a floor; a spring biased support arm fixed relative to the floor for resiliently supporting the rear of the frame; a backrest, the lower portion of the backrest being pivotally connected to the rear of the seat frame for unison action displacement therewith under load, vertically slidable track means connecting the backrest to a wall for free vertical displacement thereof between fixed vertical limits, latch means for selectively locking the backrest in a predetermined upper position; the upper position being chosen to permit the seat to pivotally collapse into substantially vertical alignment with the backrest between the backrest and the floor.
Claim 10
Dependent Claim
129 words
A collapsible seat assembly comprising: a seat having a frame; at least one leg pivotally connected to the front of the frame for vertical support thereof relative to a floor; a spring biased support arm fixed relative to the floor for resiliently supporting the rear of the frame; a backrest, the lower portion of the backrest being pivotally connected to the rear of the seat frame for unison action displacement therewith under load, vertically slidable track means connecting the backrest to a wall for free vertical displacement thereof between fixed vertical limits, latch means for selectively locking the backrest in a predetermined upper position; the upper position being chosen to permit the seat to pivotally collapse into substantially vertical alignment with the backrest between the backrest and the floor.
Claim 11
Dependent Claim
21 words
A seat assembly as defined in claim 8 including means on the wall for retaining the seat in the collapsed position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |