US3176672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low oil pressure sensitive engine governor
Assignee: Motors Liquidation Co
•
Filing: 1961-11-02
•
Granted: 1965-04-06
•
Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Mark R Rowe
- 👤 Harry C Zeisloft
- 👤 Claude B Mccathron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:14
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/18; F01M1/20; F01M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A COMBINATION LOW LUBRICATING OIL PRESSURE AND OVERSPEED GOVERNOR DEVICE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A FIRST SPRING BIASED MEMBER OPERABLE IN RESPONSE TO LUBRICATING OIL PRESSURE, A PUMP TO FURTHER PRESSURIZE THE LUBRICATING OIL PROPORTIONAL TO ENGINE SPEED, A SECOND SPRING BIASED MEMBER OPERABLE IN RESPONSE TO THE PRESSURE DIFFERENTIAL PREVAILING BETWEEN SAID LUBRICATING OIL AND THE DISCHARGE PRESSURE OF SAID PUMP, AN ADJUSTABLE MEMBER ADAPTED TO REGULATE MAXIMUM LUBRICATING OIL PRESSURES APPLIED TO SAID FIRST SPRING BIASED MEMBER, AND AN ENGINE CONTROL MEMBER SENSING LUBRICATING OIL PRESSURE AND ALLOWING ENGINE OPERATION WHEN BOTH THE LUBRICATING OIL PRESSURE AND ENGINE SPEED ARE WITHIN SAFE OPERATING LIMITS, SAID FIRST AND SECOND SPRING BIASED MEMBERS MOVING RELATIVE TO ONE ANOTHER SO AS TO VENT SAID CONTROL MEMBER TO LUBRICATING SUMP PRESSURE WHEN SAID SAFE OPERATING LIMITS ARE EXCEEDED.
Claim 2
Dependent Claim
138 words
A COMBINATION LOW LUBRICATING OIL PRESSURE AND OVERSPEED GOVERNOR DEVICE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A FIRST SPRING BIASED MEMBER OPERABLE IN RESPONSE TO LUBRICATING OIL PRESSURE, A PUMP TO FURTHER PRESSURIZE THE LUBRICATING OIL PROPORTIONAL TO ENGINE SPEED, A SECOND SPRING BIASED MEMBER OPERABLE IN RESPONSE TO THE PRESSURE DIFFERENTIAL PREVAILING BETWEEN SAID LUBRICATING OIL AND THE DISCHARGE PRESSURE OF SAID PUMP, AN ADJUSTABLE MEMBER ADAPTED TO REGULATE MAXIMUM LUBRICATING OIL PRESSURES APPLIED TO SAID FIRST SPRING BIASED MEMBER, AND AN ENGINE CONTROL MEMBER SENSING LUBRICATING OIL PRESSURE AND ALLOWING ENGINE OPERATION WHEN BOTH THE LUBRICATING OIL PRESSURE AND ENGINE SPEED ARE WITHIN SAFE OPERATING LIMITS, SAID FIRST AND SECOND SPRING BIASED MEMBERS MOVING RELATIVE TO ONE ANOTHER SO AS TO VENT SAID CONTROL MEMBER TO LUBRICATING SUMP PRESSURE WHEN SAID SAFE OPERATING LIMITS ARE EXCEEDED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |