Patent · US Expired

Electric machine and manual machine tool comprising the same

US6930431B2 · kind B2 · utility

6Cited by

5References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Manfred Buck · Jeffery Road, DE
Otto Baumann · Echterdingen, DE
Siegfried Fehrle · Echterdingen, DE
Dietmar Saur · Lingen (Ems), DE
Andre Ullrich · Echterdingen, DE
Michael Weiss · Dittelbrunn, DE

Key dates

Filing date	Jul 20, 2002
Grant date	Aug 16, 2005
Priority date	—
Expiry date	Dec 19, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/063
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention is based on an electrical machine with a rotatable brush plate (10, 12), which is held in its end positions by means of at least one holding mechanism (16, 18) that acts in the circumference direction (14).The invention proposes that the holding mechanism (16, 18) have at least one device (20, 22) that loads the brush plate (10, 12) in the circumference direction (14).

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