US4231539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedestal seat base
Assignee: L&P Property Management Co
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Filing: 1979-04-05
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Granted: 1980-11-04
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Expires: 1999-04-05
Abstract
Abstract An improved seat base for a swivel type seat in which the base's seat support and pedestal are connected together in swivel relation by a thrust bearing of inverted conical configuration. In preferred form, a latch dog is movable between a latch position defined by a latch seat in the outer bearing collar for preventing swivel type rotation of the seat, and a release position where the latch dog is withdrawn from the latch seat into the interior of the thrust bearing for allowing swivel type rotation of the seat. The latch dog is pivotable on a horizontal axis oriented above the thrust bearing between those two positions through a latch post in the inner bearing collar by use of a lift arm connected thereto, the lift arm having a handle located adjacent to the seat's front edge.
Inventors
- 👤 Edwin C. Sandham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:37
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
214 words
An improved pedestal base for a seat comprising a seat support and a pedestal, said seat support being connectable with said seat, and said pedestal being connectable with a support surface, a vertical thrust bearing partially carried by said seat support and partially carried by said pedestal, said vertical thrust bearing comprising an inner bearing collar and an outer bearing collar, said inner and outer bearing collars defining side walls having a generally conical cross-sectional configuration, and said inner and outer bearing collars being nested one within the other so that the side walls of said bearing collars function as bearing surfaces, and a latch device for restraining said seat support and said pedestal in a centered position, said latch device comprising a latch dog movable through a latch port defined in the conical side wall bearing surface of one of said bearing collars into a latch port defined in the conical side wall bearing surface of the other of said bearing collars for preventing rotation of said seat support relative to said pedestal by latching said seat support in a preferred position, and a handle connected to said latch dog for allowing rotation of said seat support relative to said pedestal by removing said latch dog from latching relation with said latch seat.
Claim 2
Dependent Claim
214 words
An improved pedestal base for a seat comprising a seat support and a pedestal, said seat support being connectable with said seat, and said pedestal being connectable with a support surface, a vertical thrust bearing partially carried by said seat support and partially carried by said pedestal, said vertical thrust bearing comprising an inner bearing collar and an outer bearing collar, said inner and outer bearing collars defining side walls having a generally conical cross-sectional configuration, and said inner and outer bearing collars being nested one within the other so that the side walls of said bearing collars function as bearing surfaces, and a latch device for restraining said seat support and said pedestal in a centered position, said latch device comprising a latch dog movable through a latch port defined in the conical side wall bearing surface of one of said bearing collars into a latch port defined in the conical side wall bearing surface of the other of said bearing collars for preventing rotation of said seat support relative to said pedestal by latching said seat support in a preferred position, and a handle connected to said latch dog for allowing rotation of said seat support relative to said pedestal by removing said latch dog from latching relation with said latch seat.
Claim 3
Dependent Claim
42 words
An improved pedestal base as set forth in claim 1, said latch dog being hingedly connected to said inner bearing collar, said latch port being defined in said inner bearing collar, and said latch seat being defined in said outer bearing collar.
Claim 4
Dependent Claim
27 words
An improved pedestal base as set forth in claim 2, said latch seat being of a width only slightly greater than the width of said latch dog.
Claim 5
Dependent Claim
29 words
An improved pedestal base as set forth in claim 3, said latch dog hinged connection defining a horizontal axis transverse to the rotational axis of said vertical thrust bearing.
Claim 6
Dependent Claim
24 words
An improved pedestal base as set forth in claim 4, said handle extending adjacent the front edge of said pedestal base for manual operation.
Claim 7
Dependent Claim
33 words
An improved pedestal seat base as set forth in claim 2, said inner bearing collar being formed integral with said seat support and said outer bearing collar being formed integral with said pedestal.
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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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |