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:
Apr. 21, 2015
Filed:
Feb. 29, 2012
Junji Tanaka, Anjo, JP;
Yuito Abe, Okazaki, JP;
Kazuyoshi Ito, Tsushima, JP;
Koji Maeda, Anjo, JP;
Naohisa Momiyama, Hekinan, JP;
Junji Tanaka, Anjo, JP;
Yuito Abe, Okazaki, JP;
Kazuyoshi Ito, Tsushima, JP;
Koji Maeda, Anjo, JP;
Naohisa Momiyama, Hekinan, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
In a hydraulic transmission apparatus, a lockup piston of a lockup clutch mechanism is placed on the opposite side of first and second friction plates from a sidewall portion of a front cover. A damper device is placed on the opposite side of the lockup piston from the first and second friction plates. An outer peripheral portion of the lockup piston is located closer to the outer periphery than an outer peripheral portion of a flange member. A part of the lockup piston is placed in a region located between first and second springs and a third spring of the damper device in a radial direction and in the range of an axial width of the third spring located closer to the lockup piston.