US3144095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oiling system
Assignee: Outboard Marine Corp
•
Filing: 1962-04-27
•
Granted: 1964-08-11
•
Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Robert L Trapp
- 👤 Haft Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:13
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/06; F01M11/00; F01M11/10; F01M11/12; F16; F16N; F16N13/00; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F16N2260/00; F16N2260/02; F16N2260/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A DEVICE FOR LUBRICATING THE BEARINGS OF AN INTERNAL COMBUSTION ENGINE HAVING CYLINDERS, SEPARATE CRANK CASES, A CRANKSHAFT IN THE CRANK CASES PROVIDED WITH EXPOSED CRANKS AND PISTONS OPERATIVELY CONNECTED WITH THE CRANKS AND RECIPROCABLE IN THE RESPECTIVE CYLINDERS TO DEVELOP ALTERNATING PRESSURE DIFFERENTIALS ON GAS IN SAID CRANK CASES, THE IMPROVEMENT WHICH CONSISTS OF A DUCT COMMUNICATING WITH EACH OF SAID CRANK CASES AT A POINT IN SPACED RELATION TO SAID CRANKSHAFT, AN OIL PRESSURE LINE COMMUNICATING WITH SAID DUCT AND THEREBY WITH THE RESPECTIVE CRANK CASES, AND MEANS FOR SUPPLYING OIL THROUGH SAID LINE TO SAID DUCT FOR DIRECT DELIVERY ALTERNATELY TO THE RESPECTIVE CRANK CASES BY REASON OF SAID PRESSURE DIFFERENTIALS.
Claim 2
Dependent Claim
115 words
IN A DEVICE FOR LUBRICATING THE BEARINGS OF AN INTERNAL COMBUSTION ENGINE HAVING CYLINDERS, SEPARATE CRANK CASES, A CRANKSHAFT IN THE CRANK CASES PROVIDED WITH EXPOSED CRANKS AND PISTONS OPERATIVELY CONNECTED WITH THE CRANKS AND RECIPROCABLE IN THE RESPECTIVE CYLINDERS TO DEVELOP ALTERNATING PRESSURE DIFFERENTIALS ON GAS IN SAID CRANK CASES, THE IMPROVEMENT WHICH CONSISTS OF A DUCT COMMUNICATING WITH EACH OF SAID CRANK CASES AT A POINT IN SPACED RELATION TO SAID CRANKSHAFT, AN OIL PRESSURE LINE COMMUNICATING WITH SAID DUCT AND THEREBY WITH THE RESPECTIVE CRANK CASES, AND MEANS FOR SUPPLYING OIL THROUGH SAID LINE TO SAID DUCT FOR DIRECT DELIVERY ALTERNATELY TO THE RESPECTIVE CRANK CASES BY REASON OF SAID PRESSURE DIFFERENTIALS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |