Patent US3147320A successfully refreshed from Google Patents.
US3147320A
Expired / Lapsed
US
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Carburetors
Assignee: ENGINERING RES AND APPLIC Ltd
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Filing: 1961-12-11
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Granted: 1964-09-01
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Tubb Reginald John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/23; F02M7/24; F02M7/26; F02M1/00; F02M1/04; F02M1/046; F02M17/00; F02M17/08; F02M17/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A CARBURECTOR WHICH COMPRISES, IN COMBINATION, AN AIR AND FUEL MIXING CHAMBER, AIR INLET VALUE MEANS AT ONE END OF SAID CHAMBER OPENING IN RESPSONSE TO LOWER PRESSURE ON THE DOWNSTREAM SIDE THAN ON THE UPSTREAM SIDE THEREOF, RESILIENT MEANS OPERATIVELY CONNECTED WITH SAID AIR INLET VALVE MEANS FOR YEILDINGLY OPPOSING THE OPENING THEREOF, A THROTTLE VALVE AT THE OTHER END OF SAID CHAMBER, CONTROL MEANS FOR OPERATING SAID THROTTLE VALVE, FUEL METERING MEANS OPENING INTO SAID FUEL MIXING HCMABER, STARTING FUEL FEED MEANS DISTINCT FROM SAID FUEL METERING MEANS AND OPENING INTO SAID MIXING HCMABER CLOSE TO SAID AIR INLET VALVE MEANS AT A PONT THAT IS DOWNSTREAM FROM
Claim 2
Dependent Claim
110 words
A CARBURECTOR WHICH COMPRISES, IN COMBINATION, AN AIR AND FUEL MIXING CHAMBER, AIR INLET VALUE MEANS AT ONE END OF SAID CHAMBER OPENING IN RESPSONSE TO LOWER PRESSURE ON THE DOWNSTREAM SIDE THAN ON THE UPSTREAM SIDE THEREOF, RESILIENT MEANS OPERATIVELY CONNECTED WITH SAID AIR INLET VALVE MEANS FOR YEILDINGLY OPPOSING THE OPENING THEREOF, A THROTTLE VALVE AT THE OTHER END OF SAID CHAMBER, CONTROL MEANS FOR OPERATING SAID THROTTLE VALVE, FUEL METERING MEANS OPENING INTO SAID FUEL MIXING HCMABER, STARTING FUEL FEED MEANS DISTINCT FROM SAID FUEL METERING MEANS AND OPENING INTO SAID MIXING HCMABER CLOSE TO SAID AIR INLET VALVE MEANS AT A PONT THAT IS DOWNSTREAM FROM
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |