US3354988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine with baffled oil pan
Assignee: Motors Liquidation Co
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Filing: 1965-09-17
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Granted: 1967-11-28
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:41
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/0004; F01M11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CRANKSHAFT ROTATABLY CARRIED IN THE LOWER PORTION THEREOF, SAID CRANKSHAFT HAVING A PLURALITY OF LONGITUDINALLY SPACED ECCENTRIC PORTIONS, AN OIL PAN CLOSING SAID ENGINE LOWER PORTION ADJACENT SAID CRANKSHAFT AND HAVING AT ONE END A SUMP PORTION TO CONTAIN A CHARGE OF LUBRICATING OIL, SAID OIL PAN INCLUDING A PAIR OF SIDE WALLS AND A FLOOR INTERCONNECTING SAID SIDE WALLS, SAID FLOOR HAVING A RAISED PORTION EXTENDING TRANSVERSELY THEREACROSS BETWEEN SAID SUMP PORTION AND THE OTHER END OF SAID OIL PAN TO PROVIDE CLEARANCE FOR A MEMBER TO PASS TRANSVERSELY UNDER SAID PAN, AND BAFFLE MEANS EXTENDING LONGITUDINALLY ALONG ONE SIDE OF SAID PAN AND OVER SAID RAISED PORTION AND INCLUDING MEANS TO RECEIVE OIL SWEPT TO SAID SIDE OF THE PAN OTHER END BY SAID CRANKSHAFT ECCENTRIC PORTIONS AND TO CARRY SAID OIL OVER SAID RAISED PORTION AND BACK TO SAID SUMP PORTION TO PREVENT THE TRAPPING OF EXCESSIVE OIL IN SAID PAN OTHER END BY SAID RAISED PORTION.
Claim 2
Dependent Claim
169 words
IN COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A CRANKSHAFT ROTATABLY CARRIED IN THE LOWER PORTION THEREOF, SAID CRANKSHAFT HAVING A PLURALITY OF LONGITUDINALLY SPACED ECCENTRIC PORTIONS, AN OIL PAN CLOSING SAID ENGINE LOWER PORTION ADJACENT SAID CRANKSHAFT AND HAVING AT ONE END A SUMP PORTION TO CONTAIN A CHARGE OF LUBRICATING OIL, SAID OIL PAN INCLUDING A PAIR OF SIDE WALLS AND A FLOOR INTERCONNECTING SAID SIDE WALLS, SAID FLOOR HAVING A RAISED PORTION EXTENDING TRANSVERSELY THEREACROSS BETWEEN SAID SUMP PORTION AND THE OTHER END OF SAID OIL PAN TO PROVIDE CLEARANCE FOR A MEMBER TO PASS TRANSVERSELY UNDER SAID PAN, AND BAFFLE MEANS EXTENDING LONGITUDINALLY ALONG ONE SIDE OF SAID PAN AND OVER SAID RAISED PORTION AND INCLUDING MEANS TO RECEIVE OIL SWEPT TO SAID SIDE OF THE PAN OTHER END BY SAID CRANKSHAFT ECCENTRIC PORTIONS AND TO CARRY SAID OIL OVER SAID RAISED PORTION AND BACK TO SAID SUMP PORTION TO PREVENT THE TRAPPING OF EXCESSIVE OIL IN SAID PAN OTHER END BY SAID RAISED PORTION.
References Cited (Backward Citations)
US1241589A
Cited
US2988081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |