Patent · US Active

Piezo drive

US8664829B2 · kind B2 · utility

0Cited by

4References

24Claims

0Family size

Assignee

LEICA GEOSYSTEMS AG · CH

Inventors

Marc Thelen · Karlsruhe, DE
Claudio ISELI · Au, CH
Heinz Bernhard · Berneck, CH

Key dates

Filing date	Mar 17, 2010
Grant date	Mar 4, 2014
Priority date	—
Expiry date	Jun 21, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02N2/108
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a piezo drive, in particular for use in geodesic devices, having at least one piezoelectric motor element that includes an advancing component, a running surface component, and a receptacle for the running surface component, wherein said receptacle is to be connected to a component to be driven, wherein the piezoelectric motor element has a window of operation of the motor as a frequency range of the movement of the advancing component. The running surface component and the receptacle are sized and connected to one another such that the natural resonances of the running surface component lie outside the window of operation of the motor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.