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. 20, 1985
Filed:
Feb. 21, 1984
Lee R Burris, Porter Township, Dade County, MO (US);
Billy L Speer, Springfield, MO (US);
Melvin D Gayer, Rock Prairie Township, Dade County, MO (US);
Dayco Corporation, Dayton, OH (US);
Abstract
A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the same are provided, the tensioner comprising a mechanical spring unit operatively associated with a support unit and a belt engaging unit for urging the belt engaging unit relative to the support unit and against a belt with a force to tension the belt, and a fluid dampening unit operatively associated with the support unit and the belt engaging unit to dampen the movement of the belt engaging unit relative to the support unit in at least one direction of movement thereof, the fluid dampening unit comprising a rotary dampening unit and being coaxially aligned with the spring unit. The rotary dampening unit comprises an outer ring member and an inner ring member disposed in the outer ring member with the members being arranged for relative rotational movement therebetween, the outer ring member being operatively interconnected to the support unit and the inner ring member being operatively interconnected to the belt engaging unit. The support unit comprises a cup-shaped housing containing the spring unit therein and having a closed end and an open end, the housing being operatively interconnected to the outer ring member. Part of the open end of the housing extends over the outer ring member and is secured thereto.