Patent · US Expired

Electric drive unit for generating an oscillating displacement

US7675203B2 · kind B2 · utility

0Cited by

9References

14Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Gerhard Kressner · Schongau, DE
Alexander Schroter · Steinbach, DE
Christian Junk · Eschborn, DE
Peter Hilfinger · Bad Homburg vor der Höhe, DE
Hansjorg Reick · Steinbach, DE
Bernhard Kraus · Solms, DE
Uwe Schober · Königstein, DE

Key dates

Filing date	Oct 23, 2004
Grant date	Mar 9, 2010
Priority date	—
Expiry date	Oct 8, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49009
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric drive unit for generating an oscillating movement, having a stator, a rotor, a torsion element and a tuning element. The tuning element acts upon the torsion element and serves to mechanically tune the resonant frequency of the drive unit.

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