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:
May. 30, 1989
Filed:
Sep. 17, 1987
Applicant:
Inventor:
Harry Marth, Waldbronn, DE;
Assignee:
Physik Instrumente (PI) GmbH Produktions & Marketing KG, Waldbronn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310328 ; 33833 ; 335015 ;
Abstract
The invention relates to a piezoelectric positioning element having a micrometer screw, which is combined with a piezotranslator via an intermediate part that is adjustable in length. The stationary portion and the piezoelectrically adjustable portion of the intermediate part are joined to one another by means of a parallel spring guide. The translator may also be made of an electrostrictive or magnetostrictive material.