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:
Sep. 21, 1993
Filed:
Jun. 25, 1991
Applicant:
Inventor:
Juji Ojima, Kanagawa, JP;
Assignee:
NHK Spring Company Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474111 ; 474140 ;
Abstract
A unit tensioner for a chain or belt comprising a tensioning unit mounted on a base plate and an arched, sliding shoe pivotally mounted on a pin fixed to the base plate so that a cap portion of a tension rod, extending from the tensioning unit, abuts the inner arch surface of the shoe to pivot the shoe so that the chain or belt slides against the outer arched surface of the shoe to tighten the chain or belt and to prevent wear of the cap portion or wear of the mating chain or belt.