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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.:

US 4459951 B1

PDFFull Text
Date of Patent:
Jul. 17, 1984

Filed:

Jun. 18, 1982

Overheat preventing system for internal combustion engines

Applicant:
Inventors:

Motoi Tobinaga, Hamamatsu, JP;

Yutaka Nasuda, Shizuoka, JP;

Assignees:

Yamaka Hatsudoki Kabushiki Kaisha, Iwata, JP;

Sanshin Kogyo Kabushiki Kaisita, Hamamatsu, JP;

Attorneys:

Mon; Donald D.

O'Reilly; David

Primary Examiner:

Ira S Lazarus

Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ; 123 4115 ; 123335 ;
Abstract

A system for preventing overheating of an internal combustion engine comprised of a temperature detector which activates an electronic circuit to intermittently interrupt engine ignition spark to gradually decelerate the engine. The electronic circuit has an oscillator which is activated by the temperature detector whose duty cycle is gradually increased up to a maximum. The oscillator output energizes a gating circuit to turn on a thyristor which connects an ignition charging circuit to ground. Thus interrupting the ignition spark.

Find Patent Forward Citations

Tobinaga, Motoi. (1984). Overheat preventing system for internal combustion engines (U.S. Patent No. 4459951). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4459951

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

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