Patent US3749621A successfully refreshed from Google Patents.
US3284061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: ACF Industries Inc
•
Filing: 1964-03-02
•
Granted: 1966-11-08
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Dwight M Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/08; F02M1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A CARBURETOR COMPRISING A BODY HAVING AN AIR AND FUEL MIXTURE CONDUIT THERETHROUGH, A THROTTLE VALVE MOVABLY MOUNTED WITHIN SAID MIXTURE CONDUIT, A CHOKE VALVE MOUNTED FOR MOVEMENT WITHIN SAID MIXTURE CONDUIT FROM AN OPEN TO A CLOSED POSITION, MEANS RESPONSIVE TO ENGINE OPERATION TO MOVE SAID CHOKE VALVE TO AN OPEN POSITION, A TEMPERATURE RESPONSIVE SPRING TO RESIST OPENING MOVEMENT OF SAID CHOKE VALVE BELOW A PREDETERMINED RANGE OF ENGINE TEMPERATURES WITH A FORCE INVERSELY PROPORTIONAL TO ENGINE TEMPEATURE, MEANS EXPOSING SAID TEMPERATURE RESPONSIVE SPRING TO ENGINE TEMPERATURE, AN ELONGATED CONNECTION JOINING SAID TEMPERATURE RESPONSIVE SPRING TO SAID CHOKE VALVE, SAID CONNECTION INCLUDING A PARTIALLY RIGID MEMBER, AND A SPRING LIKE YIELDABLE LINK INTEGRAL THEREWITH, SAID LINK EXHIBITING A GREATER RESISTANCE TO YIELD ABOVE ZERO DEGREES FAHRENHEIT THAN AT TEMPERATURES BELOW ZERO DEGREES FAHRENHEIT, WHEREBY SAID LINK WILL YIELD AT TEMPERATURES BELOW ZERO DEGREES FAHRENHEIT AND NOT TRANSMIT FORCE EXERTED BY SAID SPRING TO SAID CHOKE, BUT AT TEM-
Claim 2
Dependent Claim
160 words
A CARBURETOR COMPRISING A BODY HAVING AN AIR AND FUEL MIXTURE CONDUIT THERETHROUGH, A THROTTLE VALVE MOVABLY MOUNTED WITHIN SAID MIXTURE CONDUIT, A CHOKE VALVE MOUNTED FOR MOVEMENT WITHIN SAID MIXTURE CONDUIT FROM AN OPEN TO A CLOSED POSITION, MEANS RESPONSIVE TO ENGINE OPERATION TO MOVE SAID CHOKE VALVE TO AN OPEN POSITION, A TEMPERATURE RESPONSIVE SPRING TO RESIST OPENING MOVEMENT OF SAID CHOKE VALVE BELOW A PREDETERMINED RANGE OF ENGINE TEMPERATURES WITH A FORCE INVERSELY PROPORTIONAL TO ENGINE TEMPEATURE, MEANS EXPOSING SAID TEMPERATURE RESPONSIVE SPRING TO ENGINE TEMPERATURE, AN ELONGATED CONNECTION JOINING SAID TEMPERATURE RESPONSIVE SPRING TO SAID CHOKE VALVE, SAID CONNECTION INCLUDING A PARTIALLY RIGID MEMBER, AND A SPRING LIKE YIELDABLE LINK INTEGRAL THEREWITH, SAID LINK EXHIBITING A GREATER RESISTANCE TO YIELD ABOVE ZERO DEGREES FAHRENHEIT THAN AT TEMPERATURES BELOW ZERO DEGREES FAHRENHEIT, WHEREBY SAID LINK WILL YIELD AT TEMPERATURES BELOW ZERO DEGREES FAHRENHEIT AND NOT TRANSMIT FORCE EXERTED BY SAID SPRING TO SAID CHOKE, BUT AT TEM-
References Cited (Backward Citations)
US2421733A
Cited
US2774343A
Cited
US2979047A
Cited
US2998233A
Cited
US3076639A
Cited
US3137889A
Cited
US3167254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |