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:
Apr. 28, 1987
Filed:
Jan. 27, 1986
Applicant:
Inventor:
Sigeo Tamaki, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123328 ; 123401 ;
Abstract
Compensation for misoperation of the return spring which is coupled to the throttle valve of an internal combustion engine is effected by way of a mechanism which monitors the operation of the engine. Upon detection of a deceleration condition, the mechanism, which may include a mechanical spring-coupled arrangement, an electromagnetic coupling element or a solenoid, operates to engage the throttle valve and rotate the throttle valve to a prescribed opening position slightly ahead of the normal ideal return position.
Tamaki, Sigeo. (1987). Idling return device for internal combustion engines (U.S. Patent No. 4660518). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4660518
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile