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:
Sep. 13, 1983
Filed:
Jul. 08, 1980
Applicant:
Inventors:
Akio Numazawa, Nagoya, JP;
Hajime Arai, Aichi, JP;
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
74740 ; 7478 / ; 192 / ;
Abstract
A transmission for an automotive vehicle, including an auxiliary speed change device of a planetary gear mechanism type, which provides two speed stages and is automatically shifted between the two speed stages by a hydraulic fluid control system according to the operational conditions of the vehicle, and a main speed change device which is connected in series to the auxiliary speed change device, and which includes a gear transmission mechanism, which is manually shiftable between several speed stages.