Patent · US Expired

Carbon brush for collector

US5263562A · kind A · utility

5Cited by

9References

5Claims

0Family size

Assignee

Hoffman & Co. Elektrokohle Gesellschaft m.b.H · AT

Inventors

Peter Hoffmann · Korschenbroich, DE
Johann Hoell · Hallstatt, AT
Herbert Grabner · Linz, AT
Klaus Reiser · Bad Aussee, AT

Key dates

Filing date	Dec 11, 1990
Grant date	Nov 23, 1993
Priority date	—
Expiry date	Dec 11, 2010

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60L5/205
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A carbon brush for a collector has a recess which is filled with a layer of galvanically applied, copper plating, in which at least one longitudinal wire is provided as a connecting conductor, which is mechanically and electrically linked with the brush through being embedded in and completely surrounded by the copper layer.

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