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. 01, 2007
Filed:
Dec. 15, 2004
Applicant:
Hitoshi Akutagawa, Hiroshima, JP;
Inventor:
Hitoshi Akutagawa, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/38 (2006.01); F16H 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Since the first-speed-ratio counter gear is carried by the first countershaft, the second countershaft carries other counter gears which transmit the relatively small drive torque, such as the forth-speed-ratio counter gear, the second-speed-ratio counter gear and the sixth-speed-ratio counter gear. Thus, there can be provided the twin-clutch transmission with two countershafts disposed coaxially which can surely obtain the advantage of making the transmission for transmitting the sufficiently large drive torque compact.