US3224684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection nozzle
Assignee: HARTFORD MACHINE SCREW CO
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Filing: 1963-04-16
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Granted: 1965-12-21
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Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 Vernon D Roosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/04; F02M61/10; F02M61/12; F02M55/00; F02M55/02; F02M61/16; F02M61/166; F02M61/168; F02M61/18; F02M65/00; F02M65/007; F02M65/008; F02M2200/00; F02M2200/80; F02M2200/8076; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A FUEL INJECTION NOZZLE COMPRISING A NOZZLE BODY HAVING AN OUTWARDLY OPENING BORE FORMING A VALVE CHAMBER HAVING A VALVE SEAT, A PLUNGER OF SMALLER DIAMETER THAN SAID BORE DISPOSED WITHIN SAID BORE, AN EXTERNALLY THREADED GUIDE SUPPORTING THE PLUNGER FOR RECIPROCAL MOVEMENT LONGITUDINAL WITHIN SAID CHAMBER TOWARD AND AWAY FROM THE VALVE SEAT, THE EXTERNAL THREADS OF SAID GUIDE MEMBER THREADABLY ENGAGING MATING INTERNAL THREADS FORMING IN SAID BORE AND HAVING A SMALLER PITCH DIAMETR THAN SAID INTERNAL THREADS IN SAID BORE TO PROVIDE A CLEARANCE THEREBTWEEN TO LOOSELY DISPOSE SAID GUIDE MEMBER IN SAID BORE, AND A HARDENED SEALANT DISPOSED IN SAID CLEARANCE TO SEAL AND TO RIGIDLY SECURE SAID GUIDE MEMBER IN PRECISE ALIGNMENT WITH THE BORE.
Claim 2
Dependent Claim
120 words
A FUEL INJECTION NOZZLE COMPRISING A NOZZLE BODY HAVING AN OUTWARDLY OPENING BORE FORMING A VALVE CHAMBER HAVING A VALVE SEAT, A PLUNGER OF SMALLER DIAMETER THAN SAID BORE DISPOSED WITHIN SAID BORE, AN EXTERNALLY THREADED GUIDE SUPPORTING THE PLUNGER FOR RECIPROCAL MOVEMENT LONGITUDINAL WITHIN SAID CHAMBER TOWARD AND AWAY FROM THE VALVE SEAT, THE EXTERNAL THREADS OF SAID GUIDE MEMBER THREADABLY ENGAGING MATING INTERNAL THREADS FORMING IN SAID BORE AND HAVING A SMALLER PITCH DIAMETR THAN SAID INTERNAL THREADS IN SAID BORE TO PROVIDE A CLEARANCE THEREBTWEEN TO LOOSELY DISPOSE SAID GUIDE MEMBER IN SAID BORE, AND A HARDENED SEALANT DISPOSED IN SAID CLEARANCE TO SEAL AND TO RIGIDLY SECURE SAID GUIDE MEMBER IN PRECISE ALIGNMENT WITH THE BORE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |