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. 03, 1991
Filed:
Dec. 01, 1989
Michael P Alusick, Hartland, WI (US);
Michael J Kling, III, Meguon, WI (US);
Peter A Puetz, Waukesha, WI (US);
Bear Automotive Service Equipment Company, Milwaukee, WI (US);
Abstract
A cross toe zero calibration system for use in an automotive vehicle wheel alignment system uses a calibration bar for receiving cross toe measuring head units. A first set of cross toe measurements are taken with the bar in a first position and a second set of cross toe measurements are taken with the bar in a second position. In the second position, the bar is rotated 180.degree. from the first position. The two sets of measurements are averaged to yield zone cross toe angle calibration factors. The combination of rotating the bar and averaging the two sets of measurements nulls out errors introduced into the calibration measurements due to deformities in the bar. The calibration bar is mounted on the main console of an automotive vehicle wheel alignment system. Switches are included which indicate the position of the bar. A computer in the automotive vehicle wheel alignment system prompts an operator through the steps of calibration, accepts the calibration measurements and calculates the calibration factors.