Patent US3964747A successfully refreshed from Google Patents.
Patent US3297261A successfully refreshed from Google Patents.
US3297261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection nozzle valve
Assignee: Pneumo Dynamics Corp
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Filing: 1964-12-02
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Granted: 1967-01-10
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Richard P Heintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:56
CPC Classifications
F; F02; F02M; F02M55/00; F02M55/02; F02M47/00; F02M47/02; F02M61/00; F02M61/04; F02M61/10; F02M2700/00; F02M2700/07; F02M2700/074
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A FUEL INJECTION NOZZLE VALVE COMPRISING A VALVE BODY HAVING AN OUTLET PORTION DEFINING INJECTOR OPENING MEANS, A POPPET WITHIN SAID BODY HAVING A FORWARD END PORTION ADAPTED TO CLOSE SAID OPENING MEANS, SPRING MEANS BIASING SAID POPPET TO A CLOSED POSITION, SAID POPPET AND SAID BODY DEFINING THEREBETWEEN AN ACCUMULATOR CHAMBER IN WHICH PRESSURIZED FUEL COLLECTS DURING VALVE PRESSURIZATION, MEANS FOR SUPPLYING FUEL UNDER PRESSURE TO SAID VALVE, AXIALLY FIXED SLEEVE MEANS TELESCOPICALLY DISPOSED AROUND AND SUPPORTING THE TRAILING END OF SAID POPPET, SAID SLEEVE MEANS THEREBY SERVING TO ALIGN SAID POPPET IN SAID HOUSING, SAID SLEEVE AND SAID POPPET BEING SPACED WHEN FUEL UNDER PRESSURE IS SUPPLIED TO SAID SLEEVE TO DEFINE AN ANNULAR PASSAGE FOR SUPPLYING SUCH FUEL TO SAID ACCUMULATOR CHAMBER.
Claim 2
Dependent Claim
125 words
A FUEL INJECTION NOZZLE VALVE COMPRISING A VALVE BODY HAVING AN OUTLET PORTION DEFINING INJECTOR OPENING MEANS, A POPPET WITHIN SAID BODY HAVING A FORWARD END PORTION ADAPTED TO CLOSE SAID OPENING MEANS, SPRING MEANS BIASING SAID POPPET TO A CLOSED POSITION, SAID POPPET AND SAID BODY DEFINING THEREBETWEEN AN ACCUMULATOR CHAMBER IN WHICH PRESSURIZED FUEL COLLECTS DURING VALVE PRESSURIZATION, MEANS FOR SUPPLYING FUEL UNDER PRESSURE TO SAID VALVE, AXIALLY FIXED SLEEVE MEANS TELESCOPICALLY DISPOSED AROUND AND SUPPORTING THE TRAILING END OF SAID POPPET, SAID SLEEVE MEANS THEREBY SERVING TO ALIGN SAID POPPET IN SAID HOUSING, SAID SLEEVE AND SAID POPPET BEING SPACED WHEN FUEL UNDER PRESSURE IS SUPPLIED TO SAID SLEEVE TO DEFINE AN ANNULAR PASSAGE FOR SUPPLYING SUCH FUEL TO SAID ACCUMULATOR CHAMBER.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |