US3263972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic choke mechanism
Assignee: Ford Motor Co
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Filing: 1963-06-20
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Granted: 1966-08-02
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Paul E Braun
- 👤 Albert A Pruchno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:12
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/08; F02M1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE COMPRISING AN INDUCTION PASSAGE, A THROTTLE VALVE AND A CHOKE VALVE ROTATABLY SUPPORTED IN SAID INDUCTION PASSAGE, A TEMPERATURE RESPONSIVE ELEMENT, AN ADJUSTABLE LENGTH LINK OPERABLY CONNECTING SAID TEMPERATURE RESPONSIVE ELEMENT TO SAID CHOKE VALVE FOR MOVING SAID CHOKE VALVE BETWEEN AN OPENED AND A CLOSED POSITION IN RESPONSE TO TEMPERATURE CHANGES, A LEVER ROTATABLE WITH SAID THROTTLE VALVE, A FAST IDLE CAM ADAPTED TO BE ENGAGED BY SAID LEVER TO ESTABLISH A FAST IDLE POSITION FOR SAID THROTTLE VALVE, AND AN OPERATIVE CONNECTION BETWEEN SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID FAST IDLE CAM FOR POSITIONING SAID FAST IDLE CAM TO BE ENGAGED BY SAID LEVER AT LOWER TEMPERATURES, SAID LAST NAMED OPERATIVE CONNECTION COMPRISING AN ADJUSTABLE ABUTMENT SCREW TO PERMIT ADJUSTMENT OF THE RELATIVE POSITIONS OF SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID FAST IDLE CAM INDEPENDENT OF ADJUSTMENT OF THE RELATIVE POSITIONS OF SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID CHOKE VALVE.
Claim 2
Dependent Claim
159 words
A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE COMPRISING AN INDUCTION PASSAGE, A THROTTLE VALVE AND A CHOKE VALVE ROTATABLY SUPPORTED IN SAID INDUCTION PASSAGE, A TEMPERATURE RESPONSIVE ELEMENT, AN ADJUSTABLE LENGTH LINK OPERABLY CONNECTING SAID TEMPERATURE RESPONSIVE ELEMENT TO SAID CHOKE VALVE FOR MOVING SAID CHOKE VALVE BETWEEN AN OPENED AND A CLOSED POSITION IN RESPONSE TO TEMPERATURE CHANGES, A LEVER ROTATABLE WITH SAID THROTTLE VALVE, A FAST IDLE CAM ADAPTED TO BE ENGAGED BY SAID LEVER TO ESTABLISH A FAST IDLE POSITION FOR SAID THROTTLE VALVE, AND AN OPERATIVE CONNECTION BETWEEN SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID FAST IDLE CAM FOR POSITIONING SAID FAST IDLE CAM TO BE ENGAGED BY SAID LEVER AT LOWER TEMPERATURES, SAID LAST NAMED OPERATIVE CONNECTION COMPRISING AN ADJUSTABLE ABUTMENT SCREW TO PERMIT ADJUSTMENT OF THE RELATIVE POSITIONS OF SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID FAST IDLE CAM INDEPENDENT OF ADJUSTMENT OF THE RELATIVE POSITIONS OF SAID TEMPERATURE RESPONSIVE ELEMENT AND SAID CHOKE VALVE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |