Patent US3570800A successfully refreshed from Google Patents.
US3570800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel
Assignee: Mohasco Industries Inc
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Filing: 1970-03-20
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Granted: 1971-03-16
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Expires: 1990-03-20
Abstract
Abstract A low profile swivel device for chairs or the like.
Inventors
- 👤 Izchak Cycowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:22
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A swivel comprising, upper and lower opposed plates mounted in spaced-apart relation for rotation with respect to each other, a retaining member secured to and depending from said upper plate, said retaining member underlying said lower plate to restrain separating movement of said upper and lower plates relative to each other when tilting force is imparted to said swivel, said lower plate having a cup-shaped member attached thereto, threaded coupling means carried by said cup-shaped member for threadably engaging a coupler attached to a pedestaltype base, said coupling means comprising a nut having a threaded interior surface and an angular exterior surface, said nut having a flange extending in a direction away from and normal to said threaded bore, said flange and said angular surface cooperating with said cup-shaped member to restrain movement of said nut relative to said cup-shaped member, said nut member having stop means integral therewith to limit movement of said coupler toward said swivel.
Claim 2
Dependent Claim
158 words
A swivel comprising, upper and lower opposed plates mounted in spaced-apart relation for rotation with respect to each other, a retaining member secured to and depending from said upper plate, said retaining member underlying said lower plate to restrain separating movement of said upper and lower plates relative to each other when tilting force is imparted to said swivel, said lower plate having a cup-shaped member attached thereto, threaded coupling means carried by said cup-shaped member for threadably engaging a coupler attached to a pedestaltype base, said coupling means comprising a nut having a threaded interior surface and an angular exterior surface, said nut having a flange extending in a direction away from and normal to said threaded bore, said flange and said angular surface cooperating with said cup-shaped member to restrain movement of said nut relative to said cup-shaped member, said nut member having stop means integral therewith to limit movement of said coupler toward said swivel.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein said coupling means is removably mounted in an opening formed in said cup-shaped member.
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |