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.
Patent No.:
Date of Patent:
Sep. 05, 1989
Filed:
Aug. 17, 1988
Darrel R Janisch, Thief River Falls, MN (US);
Fredric H Bernier, St. Hilaire, MN (US);
Arctco, Inc., Thief River Falls, MN (US);
Abstract
An idle detector and safety apparatus for use in an internal combustion engine includes a magnet which is mounted to the carburetor piston valve and a magnetically actuatable switch positioned outside of the carburetor body. A sensor is also provided to indicate throttle position. When the throttle sensor indicates the throttle is in an idle position, a circuit checks the status of the magnetically actuatable switch. If the switch indicates that the piston valve is in the idle position as is proper, engine ignition is allowed to continue. If the switch indicates that the piston valve is improperly in a high speed position, engine ignition is caused to be interrupted. As a result, the engine is prevented from going into an uncontrolled, runaway condition should the piston valve become misplaced.