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:
Jan. 23, 2018
Filed:
May. 15, 2014
Borgwarner Inc., Auburn Hills, MI (US);
Mark M. Wigsten, Lansing, NY (US);
Dale N. Smith, Freeville, NY (US);
BORGWARNER INC., Auburn Hills, MI (US);
Abstract
A tensioner () for an endless loop power transmission member can induce a piston () operably engageable with an endless loop power transmission member, and a cylinder () guiding include a piston () for sliding coaxial movement in a direction of the endless loop power transmission member. The piston () and cylinder () defining an oil reservoir or pressure chamber () for receiving hydraulic fluid. A bearing () has bearing balls () located in a counter bore () coaxial with cylinder bore (). The counter bore () has a steep taper () on which the bearing balls () ride. As the cylinder () moves in an extending direction, the bearing balls () move out of the counter bore () allowing free extending movement of the cylinder (). As the cylinder () moves in a retracting direction, the bearing balls () are driven down into the steep taper () preventing the cylinder () from retracting.