Patent · US Active

Linear device and electric device with linear motor

US9806591B2 · kind B2 · utility

5Cited by

2References

16Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Uwe Schober · Königstein, DE
Frank Ziegler · Karben, DE
Robert D. Schaefer · Talbert, US

Key dates

Filing date	Jul 11, 2013
Grant date	Oct 31, 2017
Priority date	—
Expiry date	May 3, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH02K33/16
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A linear motor is disclosed. The linear motor includes an armature mounted for driven linear oscillation substantially along a longitudinal direction; a secondary mass mounted for linear oscillation substantially along the longitudinal direction; and a coupling unit for coupling the armature and the secondary mass. The coupling unit includes at least two coupling spring assemblies and at least a coupling element, the coupling spring assemblies being arranged in planes perpendicular to the longitudinal direction and being spaced apart from each other, and the coupling element being fixedly connected with the coupling spring assemblies.

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