US3288379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection valves
Assignee: Associated Engineering Ltd
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Filing: 1964-09-08
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Granted: 1966-11-29
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Croft Brian Hugh
- 👤 Abbott Adrian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:46
CPC Classifications
F; F02; F02M; F02M47/00; F02M47/02; F02M47/027; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/06; F02D41/062; F02D41/064; F02D41/068; F02M51/00; F02M51/02; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SERVO OPERATED FUEL INJECTION VALVE, COMPRISING A VALVE BODY, A PISTON HAVING AN UPPER PART OF GREATER DIAMETER THAN THE LOWER PART AND LOCATED IN A BORE PROVIDED IN THE VALVE BODY, SAID BORE HAVING TWO DIAMETERS TO MATCH THE DIAMETERS OF THE TWO PARTS OF THE PISTON, AND THE LOWER PART OF SAID BORE BEING PROVIDED WITH AT LEAST ONE OUTLET ORIFICE CLOSED OFF BY THE LOWER END OF THE PISTON WHEN IN ITS LOWER POSITION, THE UPPER PART OF SAID BODY BEING PROVIDED WITH A FUEL INLET PASSAGE AND A FUEL OUTLET PASSAGE, SAID FUEL OUTLET PASSAGE ALLOWING A GREATER RATE OF FLOW THAN THE FUEL INLET PASSAGE, AN ARMATURE FOR CLOSING
Claim 2
Dependent Claim
115 words
A SERVO OPERATED FUEL INJECTION VALVE, COMPRISING A VALVE BODY, A PISTON HAVING AN UPPER PART OF GREATER DIAMETER THAN THE LOWER PART AND LOCATED IN A BORE PROVIDED IN THE VALVE BODY, SAID BORE HAVING TWO DIAMETERS TO MATCH THE DIAMETERS OF THE TWO PARTS OF THE PISTON, AND THE LOWER PART OF SAID BORE BEING PROVIDED WITH AT LEAST ONE OUTLET ORIFICE CLOSED OFF BY THE LOWER END OF THE PISTON WHEN IN ITS LOWER POSITION, THE UPPER PART OF SAID BODY BEING PROVIDED WITH A FUEL INLET PASSAGE AND A FUEL OUTLET PASSAGE, SAID FUEL OUTLET PASSAGE ALLOWING A GREATER RATE OF FLOW THAN THE FUEL INLET PASSAGE, AN ARMATURE FOR CLOSING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |