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. 02, 2003
Filed:
Feb. 21, 2002
Trevor O'Bryan McKinney, Fort Wayne, IN (US);
Roderick Brent Dillon, Fort Wayne, IN (US);
Russell R. Bow, Fort Wayne, IN (US);
Torque-Traction Technologies, Inc., Holland, OH (US);
Abstract
An inspection device for inspecting production of threaded members wherein the threaded members are inspected to ensure that when the threaded member is matched with a corresponding threaded hole in an automotive drive system, the threaded member will mate properly to serve its intended purpose. The apparatus of the invention is formed as a three-piece gage assembly that checks for lead errors and length errors set forth in the threaded member. The combination gage includes a substantially cylindrical gage spacer, a threaded ring gage, and a flush gage pin, which is associated with the threaded ring gage, having a low end mark and a high end mark thereon. The markings indicate proper/improper axial length of the threaded portion. The preferred embodiment is used to evaluate a drive pinion shaft of an automotive axle assembly.