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:
Aug. 23, 2011
Filed:
Feb. 22, 2008
Masaaki Nishida, Anjo, JP;
Hiroshi Katou, Anjo, JP;
Masashi Kitou, Anjo, JP;
Kohei Iizuka, Anjo, JP;
Masaaki Nishida, Anjo, JP;
Hiroshi Katou, Anjo, JP;
Masashi Kitou, Anjo, JP;
Kohei Iizuka, Anjo, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
An automatic transmission that includes two adjacent clutches. Two clutches each include a clutch drum, a piston that structures an operating oil chamber with a portion of the clutch drum used as a cylinder, a plurality of friction plates that engage with the clutch drum, a cancel oil chamber that is arranged on a back surface side of the piston and that cancels a centrifugal oil pressure acting on the operating oil chamber, and a return spring that is provided within the cancel oil chamber and that is structured between a cancel plate and a back surface of the piston and that biases the piston toward the operating oil chamber.