Patent US3317255A successfully refreshed from Google Patents.
US3317255A
Expired / Lapsed
US
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Pivot pin bearing arrangement
Assignee: Individual
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Filing: 1965-02-01
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Granted: 1967-05-02
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Wehlau Christian Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:34
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C23/00; F16C23/02; F16C23/04; F16C27/00; F16C27/02; F16C2208/00; F16C2208/20; F16C2208/30; F16C2208/32; F16C2220/00; F16C2220/02; F16C2220/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PIVOT PIN BEARING ARRANGEMENT COMPRISING IN COMBINATION A PLAIN CYLINDRICAL PIVOT PIN AND A COMPLEMENTARY MOULDED SYNTHETIC PLASTIC BEARING COMPONENT FORMED WITH A BORE THROUGH WHICH SAID PIVOT PIN EXTENDS FREELY AND WITH RADIAL CLEARANCE IN RELATIVE ROTATIONAL RELATIONSHIP WITH SAID BEARING COMPONENT, SAID BEARING COMPONENT COMPRISING AT LEAST THREE RESILIENT TONGUES EQUALLY SPACED AROUND AND EXTENDING SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID BORE, AND A PLURALITY OF PROTUBERANCES FORMED ONE ON EACH OF SAID TONGUES, EACH OF SAID PROTUBERANCES HAVING A CONVEXLY-ROUNDED SURFACE MAKING "POINT" CONTACT OVER A VERY SMALL AREA WITH SAID PIVOT PIN, SAID PROTUBERANCES BEING ADJACENT TO THE TIPS OF SAID RESILIENT TONGUES AND SAID RESILIENT TONGUES EXERTING INWARD RADIAL FORCES WHICH ARE
Claim 2
Dependent Claim
119 words
A PIVOT PIN BEARING ARRANGEMENT COMPRISING IN COMBINATION A PLAIN CYLINDRICAL PIVOT PIN AND A COMPLEMENTARY MOULDED SYNTHETIC PLASTIC BEARING COMPONENT FORMED WITH A BORE THROUGH WHICH SAID PIVOT PIN EXTENDS FREELY AND WITH RADIAL CLEARANCE IN RELATIVE ROTATIONAL RELATIONSHIP WITH SAID BEARING COMPONENT, SAID BEARING COMPONENT COMPRISING AT LEAST THREE RESILIENT TONGUES EQUALLY SPACED AROUND AND EXTENDING SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID BORE, AND A PLURALITY OF PROTUBERANCES FORMED ONE ON EACH OF SAID TONGUES, EACH OF SAID PROTUBERANCES HAVING A CONVEXLY-ROUNDED SURFACE MAKING "POINT" CONTACT OVER A VERY SMALL AREA WITH SAID PIVOT PIN, SAID PROTUBERANCES BEING ADJACENT TO THE TIPS OF SAID RESILIENT TONGUES AND SAID RESILIENT TONGUES EXERTING INWARD RADIAL FORCES WHICH ARE
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |