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. 01, 2020
Filed:
May. 09, 2016
Applicant:
Physik Instrumente (Pi) Gmbh & Co. KG, Karlsruhe, DE;
Inventors:
Reinhard Hübner, Waldbronn, DE;
Hansjörg Luckert, Karlsruhe, DE;
Assignee:
PHYSIK INSTRUMENTE (PI) GMBH & CO. KG, Karlsruhe, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02N 2/12 (2006.01); H02N 2/00 (2006.01); H02N 2/10 (2006.01);
U.S. Cl.
CPC ...
H02N 2/006 (2013.01); H02N 2/101 (2013.01);
Abstract
Disclosed is a piezoelectric rotary drive for a shaft, which includes a piezoelectric actuator, a deformable frame that can be coupled with a coupling section to the shaft in a force-fit manner in order to accomplish a stick-slip drive, and a loading device which can apply a preloading force to the coupling section and/or the actuator and/or the shaft. To facilitate production and assembly, the loading device can be a leaf spring which in the relaxed state extends substantially in a plane, such as along a straight line.