US3073424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction device
Assignee: Eaton Corp
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Filing: 1959-06-15
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Granted: 1963-01-15
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Expires: 1979-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:52
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/648; F16D13/72; F16D2069/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A FORCE TRANSMITTING MEANS COMPRISING RELATIVELY MOVABLE MEMBERS, AT LEAST ONE OF SAID MEMBERS HAVING A WORKING SURFACE INCLUDING LANDS DISTRIBUTED OVER A SUBSTANTIAL PORTION OF SAID WORKING SURFACE, THE OTHER OF SAID MEMBERS HAVING A SURFACE THEREON DISPOSED SUBSTANTIALLY PARALLEL TO SAID WORKING SURFACE AND IN FORCE TRANSMITTING RELATIONSHIP WITH SAID LANDS, VISCOUS FLUID MEANS FLOWABLE BETWEEN SAID MEMBERS, MEANS DEFINING GROOVES BETWEEN SAID LANDS TO PROVIDE A FLOW PATH FOR SAID VISCOUS
Claim 2
Dependent Claim
74 words
A FORCE TRANSMITTING MEANS COMPRISING RELATIVELY MOVABLE MEMBERS, AT LEAST ONE OF SAID MEMBERS HAVING A WORKING SURFACE INCLUDING LANDS DISTRIBUTED OVER A SUBSTANTIAL PORTION OF SAID WORKING SURFACE, THE OTHER OF SAID MEMBERS HAVING A SURFACE THEREON DISPOSED SUBSTANTIALLY PARALLEL TO SAID WORKING SURFACE AND IN FORCE TRANSMITTING RELATIONSHIP WITH SAID LANDS, VISCOUS FLUID MEANS FLOWABLE BETWEEN SAID MEMBERS, MEANS DEFINING GROOVES BETWEEN SAID LANDS TO PROVIDE A FLOW PATH FOR SAID VISCOUS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |