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:
Feb. 17, 1998
Filed:
Feb. 16, 1996
Richard Hong, Grosse Pt. Wds., MI (US);
Joseph W Zamm, Rochester Hills, MI (US);
Dayco Products, Inc., Dayton, OH (US);
Abstract
A tensioner for a power transmission belt and a method of making same are provided. The tensioner includes an arm that carries a belt engaging unit and is adapted to be pivotably mounted to a support unit. A mechanical first spring is operatively associated with the support unit and the arm for urging the arm, and hence the belt engaging unit, relative to the support unit and against the belt for tensioning same. A fluidic dampener is operatively associated with the support unit and the arm to dampen movement of the arm relative to the support unit. The dampener comprises a first plate fixed to the support unit, a second plate fixed to the arm for rotation therewith and relative to the first plate, a second spring urging the first and second plates against one another, friction material disposed between part of the facing surfaces of the first and second plates, and fluid disposed between the facing surfaces of the first and second plates.