US3848926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Occupant seat
Assignee: NHK Spring Co Ltd
•
Filing: 1972-12-26
•
Granted: 1974-11-19
•
Expires: 1992-12-26
Abstract
Abstract An occupant seat of vehicles including a spring structure having a buffer body mounted thereon, said spring structure including a plurality of spring elements juxtaposed in a horizontal plane, each of which is integrally formed of supporting hooks disposed at both ends and a pair of coil spring portions positioned near the hooks.
Inventors
- 👤 K Kuroishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:57
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
An occupant seat comprising a frame, a spring structure fitted to the frame and a seating section mounted on the spring structure, said spring structure including a plurality of parallel, unconnected spring members consisting of a single wire having a hook at both ends for engagement with said frame, a coil portion adjacent each end and a straight central portion between said coil portions, said seating section comprising a buffer body, the underside of said buffer body including a plurality of parallel grooves so located in said underside that each of said spring members extends into one of said grooves, such arrangement of said spring members and grooves serving to prevent lateral displacement of the spring members.
Claim 2
Dependent Claim
117 words
An occupant seat comprising a frame, a spring structure fitted to the frame and a seating section mounted on the spring structure, said spring structure including a plurality of parallel, unconnected spring members consisting of a single wire having a hook at both ends for engagement with said frame, a coil portion adjacent each end and a straight central portion between said coil portions, said seating section comprising a buffer body, the underside of said buffer body including a plurality of parallel grooves so located in said underside that each of said spring members extends into one of said grooves, such arrangement of said spring members and grooves serving to prevent lateral displacement of the spring members.
Claim 3
Dependent Claim
17 words
The occupant seat of claim 1 wherein said buffer body is a cushion molded of foam material.
Claim 4
Dependent Claim
20 words
The occupant seat of claim 2 wherein said cushion includes an embedded wire frame across which extends a fabric web.
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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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |