US3148671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel control for internal combustion engines
Assignee: Individual
•
Filing: 1963-05-14
•
Granted: 1964-09-15
•
Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Bottorff Frank
- 👤 Haig Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:09
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/18; F01M1/20; F01M1/22; F01M1/24; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A FUEL CONTROL FOR AN INTERNAL COMBUSTION ENGINE, HAVING A FUEL SUPPLY, HAVING A FEED LINE FROM THE FUEL SUPPLY TO THE ENGINE AND CONTAINING A FUEL PUMP AND A CARBURETOR POSTERIOR TO THE FUEL PUMP, A VALVE MECHANISM HAVING A BODY PORTION AND A CHAMBER WITH AN INLET COMMUNICATING WITH SAID FEED LINE BETWEEN THE FUEL PUMP AND THE CARBURETOR AND HAVING AN OUTLET FORMING A PORTION OF THE FEED LINE TO THE CARBURETOR, A VALVE CONTROLLING SAID INLET AND OUTLET AND CONTROLLED BY THE ENGINE OIL PRESSURE AND A BY-PASS LEADING FROM SAID VALVE CHAMBER TO SAID FEED LINE, WHEREBY WHEN THE OIL PRESSURE DROPS TO A LOW PRESSURE INJURIOUS TO THE ENGINE THE FUEL BETWEEN THE CARBURETOR AND FUEL PUMP IS BY-PASSED BACK TO THE FUEL SUPPLY AND WHEN THE FUEL RETAINED IN THE CARBURETOR IS EXHAUSTED THE ENGINE STOPS.
Claim 2
Dependent Claim
143 words
A FUEL CONTROL FOR AN INTERNAL COMBUSTION ENGINE, HAVING A FUEL SUPPLY, HAVING A FEED LINE FROM THE FUEL SUPPLY TO THE ENGINE AND CONTAINING A FUEL PUMP AND A CARBURETOR POSTERIOR TO THE FUEL PUMP, A VALVE MECHANISM HAVING A BODY PORTION AND A CHAMBER WITH AN INLET COMMUNICATING WITH SAID FEED LINE BETWEEN THE FUEL PUMP AND THE CARBURETOR AND HAVING AN OUTLET FORMING A PORTION OF THE FEED LINE TO THE CARBURETOR, A VALVE CONTROLLING SAID INLET AND OUTLET AND CONTROLLED BY THE ENGINE OIL PRESSURE AND A BY-PASS LEADING FROM SAID VALVE CHAMBER TO SAID FEED LINE, WHEREBY WHEN THE OIL PRESSURE DROPS TO A LOW PRESSURE INJURIOUS TO THE ENGINE THE FUEL BETWEEN THE CARBURETOR AND FUEL PUMP IS BY-PASSED BACK TO THE FUEL SUPPLY AND WHEN THE FUEL RETAINED IN THE CARBURETOR IS EXHAUSTED THE ENGINE STOPS.
References Cited (Backward Citations)
US2734496A
Cited
US1173415A
Cited
US1473303A
Cited
US2225175A
Cited
FR951216A
Cited
US3107693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |