US3664773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel injection pumping apparatus
Assignee: CAV Ltd
•
Filing: 1970-09-04
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Granted: 1972-05-23
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Expires: 1990-09-04
Abstract
Abstract A FUEL PUMP FOR SUPPLYING FUEL TO AN INTERAL COMBUSTION ENGINE AND INCLUDING AN INJECTION PUMP, WHICH DELIVERS FUEL TO THE ENGINE DURING THE INJECTION STROKES THEREOF, AND TO WHICH FUEL IS DELIVERED DURING THE FILLING STROKES THEREOF BY WAY OF A NON-RETURN VALVE FROM A SOURCE OF FUEL UNDER PRESSURE, THE NON-RETURN VALVE INCLUDING A VALVE ELEMENT WHICH IS DISPLACED FROM ITS SEAT TO PERMIT FUEL TO FLOW TO THE INJECTION PUMP AND A PISTON MEMBER WHICH IS URGE TOWARDS THE VALVE ELEMENT BY FUEL UNDER PRESSURE FROM THE SOURCE. THE PISTON ACTS TO CLOSE THE VALVE ELEMENT QUICKLY AS THE FLOW OF FUEL TOWARDS THE INJECTION PUMP CEASES.
Inventors
- 👤 Moshe Drori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:26
CPC Classifications
F; F02; F02M; F02M41/00; F02M41/08; F02M41/14; F02M41/1405; F02M41/1411; F02M41/1427; F02M2041/1438; F02M2041/1455; F02M2041/1494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |