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:
Aug. 21, 2001
Filed:
Jul. 15, 1999
Applicant:
Inventors:
Lothar Scheibl, Aachen, DE;
Albrecht Hof, Aalen, DE;
Assignee:
Carl-Zeiss-Stiftung, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 3/00 ;
U.S. Cl.
CPC ...
G01B 3/00 ;
Abstract
A positioning device is provided with a spindle and a spindle nut cooperating therewith for the conversion of a rotary motion into a linear motion for a coarse adjustment, and a piezoelectric linear positioning element arranged in series with the spindle and spindle nut for fine adjustment. The piezoelectric linear positioning element is relieved of transverse forces and moments by a cardan joint that is arranged between an object seating and the spindle.