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. 11, 1992
Filed:
Nov. 06, 1990
Applicant:
Inventors:
Assignees:
Tsubakimoto Chain Co., Osaka, JP;
Nissan Motor Co., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474 91 ; 474110 ;
Abstract
An oil tensioner for applying a tensile force to chains, belts and similar wrapping type power transmitting mechanisms. The tensioner includes an oil reservoir for storing oil drawn from an engine block to a cylinder of a piston via a check valve, and returned to the reservoir via an orifice. The valve and orifice allow the piston to move more readily in one direction than in the other. A bell-shaped oil filter disposed adjacent to the bottom of the reservoir filters out chips and dust as well as controls the rate of oil outflow thereby preventing air from being drawn into the cylinder with the oil, and providing smooth oil flow and possible damage to the components.