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:
Oct. 06, 2015
Filed:
Sep. 04, 2013
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Atsushi Watanabe, Kanagawa, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, Ibaraki, JP;
Abstract
A valve timing control apparatus including a vane rotor, a torsion spring having one end portion fixed to the vane rotor, and a front plate having a cylindrical sleeve portion and a cutout portion formed in the sleeve portion, the cutout portion having an end wall surface with which the other end portion of the torsion spring is engaged and a side wall surface opposed to the end wall surface, the cutout portion being formed such that a first straight line extending through the end wall surface toward a radial inside of the sleeve portion is located closer to a central axis of the sleeve portion than a second straight line extending through the side wall surface toward the radial inside of the sleeve portion.