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:
Jun. 13, 1989
Filed:
Dec. 14, 1987
Toshiki Watanabe, Kamakura, JP;
Toshiharu Honda, Fujisawa, JP;
Nippon Seiko Kabushiki Kaisha, Tokyo, JP;
Abstract
An auto-tensioner has a fixed portion fixed portion fixed to a base, a displaceable device displaceable with respect to the fixed portion and contacting a belt, a tensioning device for urging the displaceable device so as to impart a tension to the belt while absorbing a portion of any fluctuation in the tension, and a vibration absorbing device disposed between the fixed portion and the displaceable device and capable of absorbing a portion of the fluctuation in the tension. The vibration absorption device includes a multi-disk fluid viscosity vibration damper having a least one fixed disk member fixed in relation to the fixed portion, at least one displaceable disk member displaceable together with the displaceable device, and a fluid which produces a viscosity resistance against the displacement of the displaceable disk member with respect to the fixed disk member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile