Patent · US Expired

Piezoelectric actuator unit

US6984924B1 · kind B1 · utility

9Cited by

10References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Andreas Voigt · Regensburg, DE
Wilhelm Frank · Echterdingen, DE
Gunter Lewentz · Regensburg, DE
Claus Zumstrull · Regenstauf, DE

Key dates

Filing date	Aug 5, 1999
Grant date	Jan 10, 2006
Priority date	—
Expiry date	Aug 5, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F2224/0283
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An actuator unit has an elastically configured hollow body in which a piezoelectric actuator is biased, the hollow body being provided with holes which are of a dumb-bell shape and run transversely of the hollow body's axis.

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