US3252539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-barrel carburetor with adjustable idle air by-pass
Assignee: ACF Industries Inc
•
Filing: 1962-03-09
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Granted: 1966-05-24
•
Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
- 👤 William F Ott
- 👤 John H Krein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4304; F02M2700/4311
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN AN AUTOMATIVE VEHICLE HAVING AN INTERNAL COMBUSTION ENGINE PROVIDING A SOURCE OF VACUUM, AN ACCESSORY POWERED BY THE ENGINE ADAPTED TO CAUSE A CHANGE IN SAID VACUUM, A CARBURETOR COMPRISING A MIXTURE CONDUIT MEANS FOR SUPPLYING A MIXTURE OF AIR AND FUEL SYSTEM THE ENGINE, SAID CARBURETOR HAVING AN IDLE FUEL SYSTEM INTERCONNECTED WITH SAID MIXTURE CONDUIT MEANS, THROTTLE MEANS IN SAID MIXTURE CONDUIT MEANS, AN AIR BY-PASS AROUND AND EXCLUSIVE OF SAID THROTTLE MEANS, A VALVE IN SAID BY-PASS, A DIAPHRAGM CONNECTED TO SAID VALVE AND BEING RESPECTIVE TO DROP IN VACUUM DOWNSTREAM FROM SAID THROTTLE MEANS FOR OPENING SAID VALVE AND BY-PASSING AIR AROUND AND EXCLUSIVE OF SAID THROTTLE MEANS IN THE CURB IDLE POSITION THEREOF, AN AUXILIARY FUEL SYSTEM FORMED IN SAID CARBURETOR, A PORT INTERCONNECTING SAID AUXILIARY FUEL SYSTEM WITH SAID BY-PASS FOR ADDING FUEL TO SAID AIR TO INCREASE ENGINE IDLE SPEED.
Claim 2
Dependent Claim
148 words
IN AN AUTOMATIVE VEHICLE HAVING AN INTERNAL COMBUSTION ENGINE PROVIDING A SOURCE OF VACUUM, AN ACCESSORY POWERED BY THE ENGINE ADAPTED TO CAUSE A CHANGE IN SAID VACUUM, A CARBURETOR COMPRISING A MIXTURE CONDUIT MEANS FOR SUPPLYING A MIXTURE OF AIR AND FUEL SYSTEM THE ENGINE, SAID CARBURETOR HAVING AN IDLE FUEL SYSTEM INTERCONNECTED WITH SAID MIXTURE CONDUIT MEANS, THROTTLE MEANS IN SAID MIXTURE CONDUIT MEANS, AN AIR BY-PASS AROUND AND EXCLUSIVE OF SAID THROTTLE MEANS, A VALVE IN SAID BY-PASS, A DIAPHRAGM CONNECTED TO SAID VALVE AND BEING RESPECTIVE TO DROP IN VACUUM DOWNSTREAM FROM SAID THROTTLE MEANS FOR OPENING SAID VALVE AND BY-PASSING AIR AROUND AND EXCLUSIVE OF SAID THROTTLE MEANS IN THE CURB IDLE POSITION THEREOF, AN AUXILIARY FUEL SYSTEM FORMED IN SAID CARBURETOR, A PORT INTERCONNECTING SAID AUXILIARY FUEL SYSTEM WITH SAID BY-PASS FOR ADDING FUEL TO SAID AIR TO INCREASE ENGINE IDLE SPEED.
References Cited (Backward Citations)
US2890030A
Cited
US2929226A
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US3103128A
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US3022849A
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |