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:
Dec. 27, 2011
Filed:
Aug. 07, 2009
Applicants:
Masashi Kito, Anjo, JP;
Norihiro Tokunaga, Nishio, JP;
Hiroshi Kato, Kariya, JP;
Inventors:
Assignee:
Aisin AW Co., Ltd., Anjo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 31/00 (2006.01); F16D 21/00 (2006.01); F16D 25/0638 (2006.01); F16D 25/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An automatic transmission includes first and second clutches, a clutch drum, a piston, a plurality of friction plates, a hydraulic oil chamber, a cancel oil chamber, a return spring, and a cancel plate, wherein a plate member that forms a cylinder portion of the hydraulic oil chamber is provided between the piston and the clutch drum of the first clutch that is located on an inner diameter side, and an oil passage that supplies an oil to the cancel oil chamber of the second clutch that is located on an outer diameter side is formed between the clutch drum and the plate member.