US3244377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection nozzle
Assignee: HARTFORD MACHINE SCREW CO
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Filing: 1964-04-13
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Granted: 1966-04-05
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Vernon D Roosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:34
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/16; F02M61/166; F02M61/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A FUEL INJECTION DEVICE HAVING A DISCHARGE TIP WITH A VALVE SEAT AND AN OPERATING PLUNGER ADAPTED TO BE SEATED THEREON COMPRISING A NOZZLE BODY MOUNTING SAID TIP AND SAID PLUNGER AND ADAPTED TO BE POSITIONED IN A PASSAGE WITHIN THE ENGINE BLOCK OF AN INTERNAL COMBUSTION ENGINE WITH THE TIP POSITIONED FOR DISCHARGE OF FUEL INTO THE FIRING CHAMBER OF SAID ENGINE; SAID NOZZLE BODY HAVING THEREON A THIN COVERING OF A POLYMERIC MATERIAL ALONG AT LEAST A PORTION OF THE OUTER SURFACE THEREOF ADAPTED TO BE POSITIONED IN SAID PASSAGE, SAID POLYMERIC MATERIAL BEING CHARACTERIZED BY ITS THERMAL STABILITY AT THE NORMAL OPERATING TEMPERATURES OF SAID ENGINE AS WELL AS ITS LOW SURFACE ENERGY TO THEREBY MINIMIZE DISTORTION OF THE NOZZLE BODY AS IT IS REMOVED FROM THE ENGINE.
Claim 2
Dependent Claim
131 words
A FUEL INJECTION DEVICE HAVING A DISCHARGE TIP WITH A VALVE SEAT AND AN OPERATING PLUNGER ADAPTED TO BE SEATED THEREON COMPRISING A NOZZLE BODY MOUNTING SAID TIP AND SAID PLUNGER AND ADAPTED TO BE POSITIONED IN A PASSAGE WITHIN THE ENGINE BLOCK OF AN INTERNAL COMBUSTION ENGINE WITH THE TIP POSITIONED FOR DISCHARGE OF FUEL INTO THE FIRING CHAMBER OF SAID ENGINE; SAID NOZZLE BODY HAVING THEREON A THIN COVERING OF A POLYMERIC MATERIAL ALONG AT LEAST A PORTION OF THE OUTER SURFACE THEREOF ADAPTED TO BE POSITIONED IN SAID PASSAGE, SAID POLYMERIC MATERIAL BEING CHARACTERIZED BY ITS THERMAL STABILITY AT THE NORMAL OPERATING TEMPERATURES OF SAID ENGINE AS WELL AS ITS LOW SURFACE ENERGY TO THEREBY MINIMIZE DISTORTION OF THE NOZZLE BODY AS IT IS REMOVED FROM THE ENGINE.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |