US3174731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: ACF Industries Inc
•
Filing: 1962-04-04
•
Granted: 1965-03-23
•
Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph E Kalert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:49
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/02; F02M17/04; Y; Y10; Y10S; Y10S261/00; Y10S261/68; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A CARBURETOR COMPRISING A FUEL AND AIR MIXTURE CONDUIT, A FUEL CHAMBER INCLUDING A DIAPHRAGM FORMING A WALL THEREOF AND HAVING A SURFACE OUTSIDE SAID CHAMBER EXPOSED TO AMBIENT AIR PRESSURE, MEANS FORMING A FUEL INLET PASSAGE TO SAID FUEL CHAMBER AND A VALVE SEAT WITHIN SAID PASSAGE, A VALVE SLIDABLY MOUNTED WITHIN SAID PASSAGE, A LEVER PIVOTALLY MOUNTED WITHIN SAID FUEL CHAMBER WITH ONE END IN CONTACT WITH SAID VALVE TO CLOSE SAID VALVE ON SAID SEAT, A TUBULAR MEMBER FORMING A FUEL OUTLET PASSAGE BETWEEN SAID FUEL CHAMBER AND SAID MIXTURE CONDUIT, A COIL SPRING COAXIALLY MOUNTED WITHIN SAID TUBULAR MEMBER AND EXTENDING INTO SAID FUEL CHAMBER IN CONTACT WITH AND BIASING ONE END OF SAID LEVER IN VALVE CLOSING POSITION, A PLATE LOOSELY POSITIONED ON THE CENTER PORTION OF SAID DIAPHRAGM WALL AND BETWEEN SAID DIAPHRAGM AND THE OTHER END OF SAID LEVER, AND A RETAINING PIN SUPPORTED BY THE CENTRAL PORTION OF SAID DIAPHRAGM AND LOOSELY EXTENDING AXIALLY
Claim 2
Dependent Claim
162 words
A CARBURETOR COMPRISING A FUEL AND AIR MIXTURE CONDUIT, A FUEL CHAMBER INCLUDING A DIAPHRAGM FORMING A WALL THEREOF AND HAVING A SURFACE OUTSIDE SAID CHAMBER EXPOSED TO AMBIENT AIR PRESSURE, MEANS FORMING A FUEL INLET PASSAGE TO SAID FUEL CHAMBER AND A VALVE SEAT WITHIN SAID PASSAGE, A VALVE SLIDABLY MOUNTED WITHIN SAID PASSAGE, A LEVER PIVOTALLY MOUNTED WITHIN SAID FUEL CHAMBER WITH ONE END IN CONTACT WITH SAID VALVE TO CLOSE SAID VALVE ON SAID SEAT, A TUBULAR MEMBER FORMING A FUEL OUTLET PASSAGE BETWEEN SAID FUEL CHAMBER AND SAID MIXTURE CONDUIT, A COIL SPRING COAXIALLY MOUNTED WITHIN SAID TUBULAR MEMBER AND EXTENDING INTO SAID FUEL CHAMBER IN CONTACT WITH AND BIASING ONE END OF SAID LEVER IN VALVE CLOSING POSITION, A PLATE LOOSELY POSITIONED ON THE CENTER PORTION OF SAID DIAPHRAGM WALL AND BETWEEN SAID DIAPHRAGM AND THE OTHER END OF SAID LEVER, AND A RETAINING PIN SUPPORTED BY THE CENTRAL PORTION OF SAID DIAPHRAGM AND LOOSELY EXTENDING AXIALLY
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |