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:
Nov. 01, 1988
Filed:
Dec. 23, 1985
Applicant:
Inventors:
Koyo Nakamura, Yokosuka, JP;
Yukihiro Etoh, Yokohama, JP;
Kenji Okamura, Yokosuka, JP;
Yoshiji Shimaoka, Yokosuka, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
464 58 ; 1921061 ;
Abstract
A power transmission device for a motor vehicle having an engine with a crankshaft and a transmission with a transmission input shaft, comprises spiral spring assembly which provides a torque transmission connection between the crankshaft and the transmission input shaft. The assembly includes a plurality of spiral springs operative to be deformed responsive to torsional force applied thereto during the torque transmission. A vibration damper is mounted to damp vibration caused by the above mentioned torque transmission.