Patent US3234758A successfully refreshed from Google Patents.
US3234758A
Expired / Lapsed
US
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Drive shaft slip spline assembly
Assignee: Motors Liquidation Co
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Filing: 1963-03-08
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Granted: 1966-02-15
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Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 James H Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:18
CPC Classifications
C; C10; C10M; C10M5/00; F; F16; F16D; F16D3/00; F16D3/02; F16D3/06; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
IN A DRIVE SHAFT SLIP SPLINE ASSEMBLY COMPRISING A DRIVE SHAFT MEMBER, A DRIVING MEMBER HAVING AN END ENGAGING AN ADJOINING END OF SAID DRIVE SHAFT MEMBER, AXIALLY EXTENDING SPLINES BEING PROVIDED ON THE ADJOINING ENDS OF SAID MEMBERS, AND SAID SPLINES ON SAID MEMBERS BEING IN AXIALLY SLIDABLE, ROTATABLY INTERLOCKING ENGAGEMENT, THE IMPROVEMENT WHICH COMPRISES A LUBRICATIN COMPOSITION BETWEEN SAID SPLINES, SAID COMPOSITION COMPRISING FROM A SMALL BUT EFFECTIVE AMOUNT UP TO ABOUT 50%, BY WEIGHT, POWDERED, POLYMERIZED TETRAFLUOROETHYLENE UNIFORMLY DISPERSED IN A LUBRICATING GREASE OF AT LEAST NO. 1 NLGI GRADE, SAID GREASE COMPRISING A HIGHLY VISCOUS PETROLEUM BASE HYDROCARBON LUBRICANT, SAID LUBRICATING COMPOSITION BEING CAPABLE OF LUBRICATING SAID SPLINES UNDER HIGH PRESSURE OPERATING CONDITIONS TO MINIMIZE BINDING AND WEAR OF SAID SPLINES DURING ASSEMBLY OPERATION, AND MEANS TO RETAIN LUBRICATING COMPOSITION BETWEEN SAID SPLINES.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |