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:
Feb. 25, 2014
Filed:
Nov. 14, 2011
Keiichiro Kawashima, Chiryu, JP;
Yoshikazu Akahoshi, Tokai, JP;
Keiichiro Kawashima, Chiryu, JP;
Yoshikazu Akahoshi, Tokai, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi-Ken, JP;
Abstract
A clutch device for a vehicle includes an input shaft, an output shaft coaxially arranged with a rotational axis of the input shaft, first clutch plates, second clutch plates, a piston fitted to a cylindrical portion integrally formed with the output shaft or the input shaft, an elastic member arranged between the piston and the cylindrical portion, a hydraulic chamber defined by the cylindrical portion and the piston, a canceller chamber defined by the cylindrical portion and the piston to connect to an outer side of the cylindrical portion via a discharge hole formed at a portion of the cylindrical portion, the portion being located at a predetermined radial distance from the rotational axis, and a throttle hole formed in a portion of the piston to connect the hydraulic chamber to the canceller chamber, the portion being located at a radially inward side of the portion of the cylindrical portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile