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:
Jul. 22, 2008
Filed:
Jan. 17, 2006
Travis M. Thompson, Ann Arbor, MI (US);
Jeffrey R. Lee, Tipton, MI (US);
Stephen D. Doubler, Saline, MI (US);
Robert P. Giuliani, Brooklyn, MI (US);
James W. Mcgregor, Highland, MI (US);
Travis M. Thompson, Ann Arbor, MI (US);
Jeffrey R. Lee, Tipton, MI (US);
Stephen D. Doubler, Saline, MI (US);
Robert P. Giuliani, Brooklyn, MI (US);
James W. McGregor, Highland, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A device for centering a work piece with respect to a centerline of a tool includes a radially-stationary component rigidly secured with respect to the tool such that the radially-stationary component and the tool are concentric. A biasing mechanism is biased away from the radially-stationary component to apply substantially equally-distributed radial force at a periphery of the work piece to thereby center the work piece with respect to the tool. A method of broaching a work piece having an inner and an outer diameter includes machining the outer diameter and then applying circumferentially-distributed radial force to the inner diameter or the outer diameter to thereby center the work piece with respect to a broach tool. After the applying step, the method includes broaching the inner diameter of the work piece using the broach tool.