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:
Jul. 14, 2015
Filed:
Mar. 15, 2012
Hiroshi Kato, Kariya, JP;
Takuya Ishii, Hiratsuka, JP;
Norihiro Tokunaga, Okazaki, JP;
Satoru Kasuya, Nishio, JP;
Kenta Tamabayashi, Sabae, JP;
Hiroshi Kato, Kariya, JP;
Takuya Ishii, Hiratsuka, JP;
Norihiro Tokunaga, Okazaki, JP;
Satoru Kasuya, Nishio, JP;
Kenta Tamabayashi, Sabae, JP;
AISIN AW CO., LTD., Anjo, JP;
Abstract
A fastening portion is formed from a rivet hole of a first side wall portion of a clutch drum, a rivet hole of a second side wall portion of a clutch drum, and a rivet that is inserted into the rivet hole and the rivet hole to hold together the first side wall portion and the second side wall portion. The fastening portion is provided between a first engagement side oil chamber enclosed by the clutch drum and a clutch piston, and a second engagement side oil chamber enclosed by the clutch drum and a clutch piston.