The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 28, 1977

Filed:

Sep. 19, 1975
Applicant:
Inventors:

Robert G Thompson, Milwaukee, WI (US);

Heinz K Gund, Brookfield, WI (US);

Assignee:

Briggs & Stratton Corporation, Wauwatosa, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ; 261 / ; 261 / ;
Abstract

The choke valve of a small engine, biased towards a closed position, is link connected with an air vane that tends to open it under force of cooling air blown across the engine. The air vane has a lost motion connection with a control shaft that is rotatable between defined hot and cold positions. Shaft position is established by two spirally coiled bi-metal thermostats, one for high temperatures, one for low temperatures, each in a unidirectional torque transmitting connection between the shaft and fixed structure whereby each thermostat imposes force upon the shaft only at temperatures within its own range.


Find Patent Forward Citations

Thompson, Robert. (1977). Thermostatic automatic choke control for small engines (U.S. Patent No. 4031872). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4031872

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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