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:
Jun. 04, 2013
Filed:
Aug. 21, 2009
Masashi Kito, Anjo, JP;
Hiroshi Kato, Kariya, JP;
Norihiro Tokunaga, Nishio, JP;
Tomoko Nishida, Anjo, JP;
Masashi Kito, Anjo, JP;
Masaaki Nishida, Anjo, JP;
Hiroshi Kato, Kariya, JP;
Norihiro Tokunaga, Nishio, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
An automatic transmission includes first and second clutches disposed adjacent, wherein each of the first and second clutches includes a friction plate; a clutch drum in spline engagement with the friction plate; a piston that with the clutch drum forms a hydraulic oil chamber therebetween; a return spring that biases the piston toward the hydraulic oil chamber side; and a cancel plate that is disposed on a side opposite the hydraulic oil chamber of the piston to form a cancel oil chamber that cancels outs a centrifugal hydraulic pressure that acts on the hydraulic oil chamber, and that receives a reaction force of the return spring.