US4098485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel apparatus
Assignee: Hoover Universal Inc
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Filing: 1976-07-02
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Granted: 1978-07-04
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Expires: 1996-07-02
Abstract
Abstract Swivel apparatus for a chair or the like comprising nonmetallic bearing members rotatably supporting a swivel plate. The bearing members are mounted in fixed positions on a support and each has a laterally disposed arcuate groove located in interfitting engagement with a circular projecting extension on the chair mounted swivel plate so as to rotatably support the swivel plate.
Inventors
- 👤 Ned W. Mizelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:25
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
Swivel apparatus comprising a plurality of bearing bodies, support means secured to said bearing bodies maintaining said bodies in fixed positions, each of said bearing bodies having an arcuately shaped side having generally horizontal arcuate groove means formed therein, a swivel plate, and a horizontally projecting circular extension on said swivel plate projecting radially inwardly into said groove means to be slidably engaged therein, said extension being arranged in a coaxial relation with said groove means to be restrained in said groove means so as to rotatably support said swivel plate on said bearing bodies.
Claim 2
Dependent Claim
95 words
Swivel apparatus comprising a plurality of bearing bodies, support means secured to said bearing bodies maintaining said bodies in fixed positions, each of said bearing bodies having an arcuately shaped side having generally horizontal arcuate groove means formed therein, a swivel plate, and a horizontally projecting circular extension on said swivel plate projecting radially inwardly into said groove means to be slidably engaged therein, said extension being arranged in a coaxial relation with said groove means to be restrained in said groove means so as to rotatably support said swivel plate on said bearing bodies.
Claim 3
Dependent Claim
27 words
Swivel apparatus according to claim 1 further including a plurality of bolt assemblies fixedly attaching said bearing bodies to said support means in generally diametrically opposed positions.
Claim 4
Dependent Claim
40 words
Swivel apparatus according to claim 2 wherein said groove means has an upright inner wall and transversely extending upper and lower walls, said projecting extension being of a thickness substantially equal to the distance between said upper and lower walls.
Claim 5
Dependent Claim
32 words
Swivel apparatus according to claim 3 wherein said support means comprises a lower support plate of a circular configuration having a diameter substantially equal to the inner diameter of said circular extension.
Claim 6
Dependent Claim
15 words
Swivel apparatus according to claim 3 wherein said support means comprises a chair support structure.
References Cited (Backward Citations)
CA481785A
Cited
US2914793A
Cited
US734171A
Cited
DE570885C
Cited
US1951982A
Cited
US3572817A
Cited
US3593954A
Cited
US3860283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |