Invention Grant
- Patent Title: Slip ring brush having a galvanic multi-layer system
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Application No.: US14152496Application Date: 2014-01-10
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Publication No.: US09640928B2Publication Date: 2017-05-02
- Inventor: Christian Holzapfel
- Applicant: Schleifring und Apparatebau GmbH
- Applicant Address: DE Furstenfeldbruck
- Assignee: SCHLEIFRING UND APPARATEBAU GMBH
- Current Assignee: SCHLEIFRING UND APPARATEBAU GMBH
- Current Assignee Address: DE Furstenfeldbruck
- Agency: Norton Rose Fulbright US LLP
- Priority: DE102011051804 20110713
- Main IPC: H01R39/10
- IPC: H01R39/10 ; H01R39/02 ; H01R39/08 ; H01R39/24

Abstract:
A slip ring arrangement comprises a brush with a first contact material on the surface, which rests on a slideway with a second contact material on the surface. The slideway further comprises a layer with a third contact material beneath the second contact material. In this case, the abrasion of the brush is lower than that of the second contact material in the case of a sliding contact between the brush and the second contact material. In the case of a sliding contact between the brush and third contact material, the abrasion of the brush is higher than that of third contact material. As a result, the second contact material of the slideway is degraded first, which corresponds to the normal service life of a slideway. Subsequently, the brush is worn off relative to the third contact material, by means of which a further considerable extension in the service life is achieved.
Public/Granted literature
- US20140179125A1 Slip Ring Brush Having a Galvanic Multi-Layer System Public/Granted day:2014-06-26
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