Patent US1859774A successfully refreshed from Google Patents.
Patent US3235238A successfully refreshed from Google Patents.
US3235238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: ACF Industries Inc
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Filing: 1963-05-13
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Granted: 1966-02-15
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Charles L Martin
- 👤 Joel B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:08
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/02; F02M17/04; Y; Y10; Y10S; Y10S261/00; Y10S261/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A CARBURETOR HAVING A MIXTURE CONDUIT, A FUEL SOURCE, MEANS DEFINING A DOME-SHAPED FUEL CHAMBER, A DIAPHRAGM CLOSING THE BOTTOM OF SAID FUEL CHAMBER AND MEANS FOR MOVING SAID DIAPHRAGM BY DIFFERENTIAL PRESSURE, A FUEL INLET DELIVERING FUEL FROM SAID SOURCE TO SAID FUEL CHAMBER, MEANS INCLUDING A VALVE FOR CONTROLLING SAID FUEL INLET, MEANS INCLUDING A LEVER CONTROLLED BY MOVEMENT OF SAID DIAPHRAGM FOR SENSING THE FUEL REQUIREMENTS AND CONTROLLING SAID INLET VALVE, MEANS DEFINING A HIGH SPEED FUEL SYSTEM FOR DELIVERY OF FUEL FROM SAID FUEL CHAMBER TO SAID MIXTURE CONDUIT, SAID MEANS DEFINING SAID HIGH SPEED SYSTEM INCLUDING A TUBULAR FUEL INLET CONDUIT EXTENDING DOWNWARD FROM THE MEANS DEFINING SAID DOME-SHAPED FUEL CHAMBER AND TERMINATING AT A LEVEL BETWEEN SAID LEVER AND SAID DIAPHRAGM AND A HIGH SPEED FUEL NOZZLE EXTENDING INTO SAID MIXTURE CONDUIT, MEANS DEFINING A PASSAGE CONNECTING SAID TUBULAR INLET CONDUIT WITH SAID NOZZLE, AND A BLEED PASSAGEWAY HAVING AN OPENING IMMEDIATELY ADJACENT SAID FUEL NOZZLE AT ONE END AND OPENING INTO THE UPPERMOST PORTION OF SAID DOME-SHAPED FUEL CHAMBER AT ITS OTHER END FOR PURGING AIR AND VAPOR FROM SAID FUEL CHAMBER TO MAINTAIN A SOLID FUEL CONDITION THEREIN FOR MORE ACCURATE SENSING OF THE FUEL DEMAND.
Claim 2
Dependent Claim
204 words
A CARBURETOR HAVING A MIXTURE CONDUIT, A FUEL SOURCE, MEANS DEFINING A DOME-SHAPED FUEL CHAMBER, A DIAPHRAGM CLOSING THE BOTTOM OF SAID FUEL CHAMBER AND MEANS FOR MOVING SAID DIAPHRAGM BY DIFFERENTIAL PRESSURE, A FUEL INLET DELIVERING FUEL FROM SAID SOURCE TO SAID FUEL CHAMBER, MEANS INCLUDING A VALVE FOR CONTROLLING SAID FUEL INLET, MEANS INCLUDING A LEVER CONTROLLED BY MOVEMENT OF SAID DIAPHRAGM FOR SENSING THE FUEL REQUIREMENTS AND CONTROLLING SAID INLET VALVE, MEANS DEFINING A HIGH SPEED FUEL SYSTEM FOR DELIVERY OF FUEL FROM SAID FUEL CHAMBER TO SAID MIXTURE CONDUIT, SAID MEANS DEFINING SAID HIGH SPEED SYSTEM INCLUDING A TUBULAR FUEL INLET CONDUIT EXTENDING DOWNWARD FROM THE MEANS DEFINING SAID DOME-SHAPED FUEL CHAMBER AND TERMINATING AT A LEVEL BETWEEN SAID LEVER AND SAID DIAPHRAGM AND A HIGH SPEED FUEL NOZZLE EXTENDING INTO SAID MIXTURE CONDUIT, MEANS DEFINING A PASSAGE CONNECTING SAID TUBULAR INLET CONDUIT WITH SAID NOZZLE, AND A BLEED PASSAGEWAY HAVING AN OPENING IMMEDIATELY ADJACENT SAID FUEL NOZZLE AT ONE END AND OPENING INTO THE UPPERMOST PORTION OF SAID DOME-SHAPED FUEL CHAMBER AT ITS OTHER END FOR PURGING AIR AND VAPOR FROM SAID FUEL CHAMBER TO MAINTAIN A SOLID FUEL CONDITION THEREIN FOR MORE ACCURATE SENSING OF THE FUEL DEMAND.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |