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:
Jan. 24, 1984
Filed:
Oct. 30, 1980
Applicant:
Inventors:
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74740 ; 192 7028 ;
Abstract
A transmission has a gear mechanism which is selected between speeds by selective engagement of a brake including first and second friction plate elements. A piston is driven by pressure in a fluid pressure chamber so as selectively to squeeze the friction plate elements together and engage them. A return spring for releasing this engagement is mounted parallel to the axis of rotation of the brake in a cavity formed in the transmission housing, radially outside the brake, and biases the piston in the release direction. This allows the transmission to be axially shorter than when the return spring is mounted radially inwards of the brake.