Title:
COMPOSITE ELECTRICAL BRUSH CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO2004075373
Kind Code:
A3
Abstract:
A method of manufacturing a composite electrical brush (10) comprises forming a brush body part (14) of low resistivity, carbon/graphite/resin material; heat treating the formed body; applying a layer (34) of high resistivity, resin-containing material to a face (22) of the brush body part; and curing the high resistivity layer: preferably the high resistivity layer is a paste, is applied by roll coating, painting, screen printing or transfer printing and can be applied to a surface (28) of the brush body part other than a surface (20, 24) of the press-way direction: the thus-formed composite electrical brush has the high resistivity, graphite/resin layer (34) bonded to the back face (28) of the carbon/graphite/resin brush body part (14).
Inventors:
SIDGWICK DAVID HALL (GB)
Application Number:
PCT/GB2004/000590
Publication Date:
December 23, 2004
Filing Date:
February 13, 2004
Export Citation:
Assignee:
MORGAN CRUCIBLE CO (GB)
SIDGWICK DAVID HALL (GB)
SIDGWICK DAVID HALL (GB)
International Classes:
H01R39/24; H01R43/12; H01R39/26; (IPC1-7): H01R39/20; H01R39/24; H01R43/12
Foreign References:
| US5701046A | 1997-12-23 | |||
| US5270504A | 1993-12-14 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 010, no. 061 (E - 387) 11 March 1986 (1986-03-11)
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