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:
Aug. 01, 2000
Filed:
Apr. 22, 1998
Applicant:
Inventor:
Hayashi Kageyama, Tochigi, JP;
Assignee:
Viscodrive Japan Ltd., , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
464 24 ; 464 97 ;
Abstract
A propeller shaft comprises two torque transmission members, a viscous fluid damper and a torsion bar which are arranged in parallel between the torque transmission members, and a stopper for restricting the maximum torsion angle of the torsion bar. Thus, torsional vibration characteristic is adjusted in a wide range. Accordingly, a vibration a and noise in a power transmission system can be prevented, and also, a starting acceleration performance of a vehicle can be improved.