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:
May. 11, 1982
Filed:
Apr. 20, 1979
Applicant:
Inventor:
Hajime Arai, Aichi, JP;
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
74760 ; 74786 ; 74787 ;
Abstract
An automatic transmission which establishes the first forward speed stage and the reverse stage by selective stopping of rotary elements of a Ravigneaux type planetary gear train effected by mechanical brakes and which establishes the second forward speed or direct connection stage by coupling two relatively rotating elements of the planetary gear train by means of an oil pressure clutch so as to lock the planetary gear train.