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. 02, 2002
Filed:
Oct. 25, 1999
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
K16K 3/144 ;
U.S. Cl.
CPC ...
K16K 3/144 ;
Abstract
A throttle valve controller for an internal combustion engine in which a ring gear comprises a center body, a teeth portion, at least one rotation detent portion and at least one contraction detent portion for preventing the ring gear from rotation along the peripheral direction of the ring gear, wherein the rotation detent portion and the contraction detent portion are arranged with equal spacing along the peripheral direction of the ring gear. As a result, accuracy of the circularity of the ring gear is improved.