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. 22, 1987
Filed:
Oct. 29, 1986
Applicant:
Inventors:
Hisashi Kodama, Nagoya, JP;
Yoshio Okabe, Chiryu, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474110 ;
Abstract
An automatic tensioner for adjusting the tension in a timing belt, V belt, or the like has a locking mechanism. The tensioner has a plunger always biased toward a large oil chamber containing oil. A rod having a head that is pressed against the timing belt or the like is inserted in the body of the tensioner so as to form a small oil chamber. A piston is received in the body of the tensioner. Normally, the piston bears against the plunger. If oil should leak from the large oil chamber, then the plunger will move downward, permitting the piston to engage the rod. Thus, the rod is locked.