US3814475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seats
Assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
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Filing: 1972-11-24
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Granted: 1974-06-04
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Expires: 1992-11-24
Abstract
Abstract The present invention provides a bucket seat, comprising a seat portion, a back rest portion, a hinge pivotally connecting the seat portion to the back portion, and adjuster means connected to the back rest portion for continuous adjustment of the angle of tilt of said back rest portion relative to the seat portion.
Inventors
- 👤 W Ritz
- 👤 S Slabon
- 👤 L Kasten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:03
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/0246
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
A bucket seat, comprising a seat portion, a back rest portion, a hinge pivotally connecting the seat portion to the back portion, and adjuster means connected to the back rest portion for continuous adjustment of the angle of tilt of said back rest portion relative to the seat portion, said adjuster means including a flat spring joined at one end to the back rest portion, a tension spring mounted to act on the flat spring, and a clamp device mounted to releasably clamp the flat spring, actuation of the clamp device allowing the tension spring to act on the flat spring and tilt the back rest portion relative to the seat portion.
Claim 2
Dependent Claim
112 words
A bucket seat, comprising a seat portion, a back rest portion, a hinge pivotally connecting the seat portion to the back portion, and adjuster means connected to the back rest portion for continuous adjustment of the angle of tilt of said back rest portion relative to the seat portion, said adjuster means including a flat spring joined at one end to the back rest portion, a tension spring mounted to act on the flat spring, and a clamp device mounted to releasably clamp the flat spring, actuation of the clamp device allowing the tension spring to act on the flat spring and tilt the back rest portion relative to the seat portion.
Claim 3
Dependent Claim
26 words
A bucket seat as claimed in claim 1, in which the clamp device comprises an eccentric, an associated stop, and a lever for moving the eccentric.
Claim 4
Dependent Claim
44 words
A bucket seat as claimed in claim 2, having a compression spring, one end of the lever cooperating with the compression spring which urges the lever and the eccentric into a position in which the eccentric locks the flat spring against the said stop.
Claim 5
Dependent Claim
21 words
A bucket seat as claimed in claim 1, having a stop mounted to limit forward tilting of the seat back rest.
Claim 6
Dependent Claim
110 words
A bucket seat, comprising a dished seat portion, a dished back rest portion hinged to the seat portion, a bendable member extending transverse to the hinge axis and attached at one end to one of the said portions, and adjusting means manually operable to produce relative movement between the member and the other said portion, whereby to cause tilting of the back rest portion relative to the seat portion, said adjusting means comprising spring means acting between the member and the said other portion of the seat, and releasable clamping means for releasably clamping the member and the said other portion of the seat against the action of the seat.
Claim 7
Dependent Claim
110 words
A bucket seat, comprising a dished seat portion, a dished back rest portion hinged to the seat portion, a bendable member extending transverse to the hinge axis and attached at one end to one of the said portions, and adjusting means manually operable to produce relative movement between the member and the other said portion, whereby to cause tilting of the back rest portion relative to the seat portion, said adjusting means comprising spring means acting between the member and the said other portion of the seat, and releasable clamping means for releasably clamping the member and the said other portion of the seat against the action of the seat.
Claim 8
Dependent Claim
15 words
A seat according to claim 5, in which the bendable member is a leaf spring.
References Cited (Backward Citations)
US3583762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |