Patent US3266785A successfully refreshed from Google Patents.
US3266785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injector
Assignee: Individual
•
Filing: 1964-04-17
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Granted: 1966-08-16
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Expires: 1984-04-17
Abstract
No abstract record available.
Inventors
- 👤 Sr Walter L Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A FUEL INJECTION DEVICE COMPRISING A MAIN BODY FORMED WITH A PASSAGE FOR FUEL MIXTURE, A METERING SHAFT MOUNTED IN A WALL OF SAID MAIN BODY AND PROJECTING INTO SAID PASSAGE, SAID METERING SHAFT HAVING AN INNER PORTION FORMED WITH A DISCHARGE RECESS, A SLEEVE-LIKE BUTTERFLY SHAFT ROTATABLY MOUNTED ON SAID INNER PORTION AND HAVING DISCHARGE APERTURES REGISTRABLE WITH SAID DISCHARGE RECESS, SAID METERING SHAFT HAVING AN ANNULAR FACE FORMED WITH A CIRCUMFERENTIALLY TAPERING METERING RECESS, SAID BUTTERFLY SHAFT HAVING AN ANNULAR FACE SEALINGLY ENGAGING SAID FIRST-NAMED ANNULAR FACE AND FORMED WITH A FUEL-RECEIVING RECESS LOCATED TO OVERLAP SAID METERING RECESS, PASSAGE MEANS COMMUNICATIVELY CONNECTING SAID FUEL-RECEIVING RECESS, TO SAID DISCHARGE APERTURES, FUEL INLET MEANS COMMUNICATIVELY CONNECTED TO SAID METERING RECESS, MEANS BIASING SAID BUTTERFLY SHAFT TO A POSITION WHEREIN SAID FUEL-RECEIVING RECESS IS OUT OF REGISTRY WITH SAID METERING RECESS, MEANS TO ROTATE SAID BUTTERFLY SHAFT TO AN IDLING POSITION WHEREIN SAID FUEL-RECEIVING RECESS OVERLAPS A RELATIVELY NARROW PORTION OF SAID METERING RECESS, AND VACUUM-RESPONSIVE MEANS TO LOCK SAID BUTTERFLY SHAFT IN SAID IDLING POSITION.
Claim 2
Dependent Claim
176 words
A FUEL INJECTION DEVICE COMPRISING A MAIN BODY FORMED WITH A PASSAGE FOR FUEL MIXTURE, A METERING SHAFT MOUNTED IN A WALL OF SAID MAIN BODY AND PROJECTING INTO SAID PASSAGE, SAID METERING SHAFT HAVING AN INNER PORTION FORMED WITH A DISCHARGE RECESS, A SLEEVE-LIKE BUTTERFLY SHAFT ROTATABLY MOUNTED ON SAID INNER PORTION AND HAVING DISCHARGE APERTURES REGISTRABLE WITH SAID DISCHARGE RECESS, SAID METERING SHAFT HAVING AN ANNULAR FACE FORMED WITH A CIRCUMFERENTIALLY TAPERING METERING RECESS, SAID BUTTERFLY SHAFT HAVING AN ANNULAR FACE SEALINGLY ENGAGING SAID FIRST-NAMED ANNULAR FACE AND FORMED WITH A FUEL-RECEIVING RECESS LOCATED TO OVERLAP SAID METERING RECESS, PASSAGE MEANS COMMUNICATIVELY CONNECTING SAID FUEL-RECEIVING RECESS, TO SAID DISCHARGE APERTURES, FUEL INLET MEANS COMMUNICATIVELY CONNECTED TO SAID METERING RECESS, MEANS BIASING SAID BUTTERFLY SHAFT TO A POSITION WHEREIN SAID FUEL-RECEIVING RECESS IS OUT OF REGISTRY WITH SAID METERING RECESS, MEANS TO ROTATE SAID BUTTERFLY SHAFT TO AN IDLING POSITION WHEREIN SAID FUEL-RECEIVING RECESS OVERLAPS A RELATIVELY NARROW PORTION OF SAID METERING RECESS, AND VACUUM-RESPONSIVE MEANS TO LOCK SAID BUTTERFLY SHAFT IN SAID IDLING POSITION.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |