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:
Dec. 05, 1989
Filed:
Oct. 12, 1988
Rudolf Zeller, Donzdorf, DE;
Friedrich Kitzsteiner, Bopfingen, DE;
Carl-Zeiss-Stiftung, Heidenheim/Brenz, Oberkochen, DE;
Abstract
A testing device for use in determining the uncertainty of measurement of a coordinate-measuring instrument comprises a support which can be placed on the measurement table of the coordinate-measuring instrument; the support contains a plurality of locating fastening elements which receive a test standard in different orientations within the measurement range of the coordinate-measuring instrument. The test standard is a ball rod which has a ball fixed to the opposite ends of an elongate body. One end of the ball rod is mounted to the support in a pivot/swivel bearing that is so structured as to permit free measuring-probe access to contact the ball at the thus-mounted end of the ball rod.