Patent US2883252A successfully refreshed from Google Patents.
Patent US3138144A successfully refreshed from Google Patents.
US3138144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective apparatus for internal combustion engines
Assignee: Individual
•
Filing: 1962-11-26
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Granted: 1964-06-23
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Expires: 1982-11-26
Abstract
No abstract record available.
Inventors
- 👤 Roy J Armbrust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:49
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/18; F01M1/20; F01P; F01P5/00; F01P5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
AN APPARATUS FOR USE WITH AN INTERNAL COMBUSTION ENGINE HAVING A COOLANT DEVICE AND A LUBRICATING OIL DEVICE, SAID APPARATUS INCLUDING: A NORMALLY CLOSED ELECTRICAL SWITCH WITH A MOVABLE MEMBER POSITIONED TO OPEN SAID SWITCH WHEN IN A FIRST POSITION AND PERMITTING SAID SWITCH TO CLOSE WHEN IN A SECOND POSITION; COOLANT RESPONSIVE MEANS OPERATIVELY CONNECTED TO THE COOLANT DEVICE TO BE ACTUATED BY PROPER OPERATION OF THE COOLANT DEVICE; OIL RESPONSIVE MEANS OPERATIVELY CONNECTED TO THE LUBRICATING OIL DEVICE TO BE ACTUATED BY PROPER OPERATION OF THE LUBRICATING OIL DEVICE; ONE OF SAID MEANS BEING CONNECTED TO THE MOVABLE MEMBER TO URGE THE MOVABLE MEMBER FROM THE SECOND TO THE FIRST POSITION BY A FORCE HAVING A PREDETERMINED MAXIMUM WHEN THAT ONE MEANS IS ACTUATED BY THE RESPECTIVE DEVICE; AND A CONTACTOR CONTACTING A SIDE OF THE MOVABLE MEMBER, MOVABLE WITH RESPECT TO THE MOVABLE MEMBER, AND BIASED TO URGE SAID MOVABLE MEMBER TOWARD THE SECOND POSITION BY AN AMOUNT WHICH IS MORE THAN SUFFICIENT TO OVERCOME SAID MAXIMUM FORCE; THE OTHER OF SAID MEANS BEING CONNECTED TO SAID CONTACTOR TO MOVE IT AWAY FROM THE MOVABLE MEMBER WHEN ACTUATED BY THE RESPECTIVE DEVICE TO FREE THE MOVABLE MEMBER TO BE RESPONSIVE TO THE ONE MEANS.
Claim 2
Independent Claim
207 words
AN APPARATUS FOR USE WITH AN INTERNAL COMBUSTION ENGINE HAVING A COOLANT DEVICE AND A LUBRICATING OIL DEVICE, SAID APPARATUS INCLUDING: A NORMALLY CLOSED ELECTRICAL SWITCH WITH A MOVABLE MEMBER POSITIONED TO OPEN SAID SWITCH WHEN IN A FIRST POSITION AND PERMITTING SAID SWITCH TO CLOSE WHEN IN A SECOND POSITION; COOLANT RESPONSIVE MEANS OPERATIVELY CONNECTED TO THE COOLANT DEVICE TO BE ACTUATED BY PROPER OPERATION OF THE COOLANT DEVICE; OIL RESPONSIVE MEANS OPERATIVELY CONNECTED TO THE LUBRICATING OIL DEVICE TO BE ACTUATED BY PROPER OPERATION OF THE LUBRICATING OIL DEVICE; ONE OF SAID MEANS BEING CONNECTED TO THE MOVABLE MEMBER TO URGE THE MOVABLE MEMBER FROM THE SECOND TO THE FIRST POSITION BY A FORCE HAVING A PREDETERMINED MAXIMUM WHEN THAT ONE MEANS IS ACTUATED BY THE RESPECTIVE DEVICE; AND A CONTACTOR CONTACTING A SIDE OF THE MOVABLE MEMBER, MOVABLE WITH RESPECT TO THE MOVABLE MEMBER, AND BIASED TO URGE SAID MOVABLE MEMBER TOWARD THE SECOND POSITION BY AN AMOUNT WHICH IS MORE THAN SUFFICIENT TO OVERCOME SAID MAXIMUM FORCE; THE OTHER OF SAID MEANS BEING CONNECTED TO SAID CONTACTOR TO MOVE IT AWAY FROM THE MOVABLE MEMBER WHEN ACTUATED BY THE RESPECTIVE DEVICE TO FREE THE MOVABLE MEMBER TO BE RESPONSIVE TO THE ONE MEANS.
References Cited (Backward Citations)
US1851611A
Cited
US2427426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |