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:
Jun. 05, 2007
Filed:
Jun. 01, 2004
Applicants:
Tatsuya Konishi, Osaka, JP;
Atsushi Kumakura, Osaka, JP;
Atsushi Kawano, Osaka, JP;
Inventors:
Assignee:
Tsubakimoto Chain Co., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a hydraulic tensioner, an oil pressure control recess, at a proximal end of a cylindrical, plunger-receiving hole, receives from an oil supply, and also receives oil which oozes past a check valve and an inner sleeve inside the plunger, thereby returning the oil, which would leak to the outside in a conventional hydraulic tensioner, to the interior of the plunger.