Hydraulic tensioner with a band type check valve

Patent No. 8,403,783

Issued: March 26, 2013
Filed: December 6, 2006
PCT Filed: December 06, 2006
371(c)(1),(2),(4) Date: May 21, 2008
PCT Pub. No.: WO2008/027067
PCT Pub. Date: March 06, 2008
Term Extension: 1,344 days

Inventor: Mark Wigsten (Lansing, NY)
Assignee: BorgWarner Inc. (Auburn Hills, MI)


A hydraulic tensioner includes an inlet portion which defines a pressurized fluid inlet. The hydraulic tensioner also includes a housing defining a chamber which is coupled to the inlet portion. A band check valve separates the pressurized fluid inlet from the chamber, and a piston slideably engages the housing. A method of manufacturing the hydraulic tensioner is also disclosed.

Reference to Related Applications

This application claims an invention which was disclosed in Provisional Application No. 60/749,832, filed Dec. 13, 2005, entitled "HYDRAULIC TENSIONER WITH A BAND TYPE CHECK VALVE". The benefit under 35 USC 119(e) of the United States provisional application is hereby claimed, and the aforementioned application is hereby incorporated herein by reference.


Go Back for more representative patents.


Home || Intellectual Property || Patents || Trademarks || Copyrights


Brown & Michaels, PC
400 M & T Bank Building
118 North Tioga Street - The Commons
Ithaca, NY 14850
Phone: (607) 256-2000 Fax: (607) 256-3628

e-mail: bpm@bpmlegal.com

© 2013 Brown & Michaels PC