Schunk Kohlenstofftechnik Gmbh

Schunk Carbon Technology S.r.l.

Klaus-Georg Tontsch

Rainer Sperling

Reiner Pfeiffer

Bettina Hübner

Stefan GÜNTHER

Ivano Marinelli

Wolfgang Sauer

The invention relates to a carbon brush (), having a wear limit indicating function, having a current-carrying stranded wire being arranged in the brush body (), and having a stranded indicating wire (), which, at a stranded wire end section (), is surrounded and fixed by a sleeve () having an infeed opening (), wherein the sleeve () is arranged in a recess () being formed in the brush body (). The sleeve () is formed as a centering sleeve, the inner diameter () of which at the infeed opening () nearly corresponds to the outer diameter () and features a tapering () that is conical in the infeed direction.

Carbon brush having a centering sleeve

A resin bonded graphite material which is especially suitable for use as an electric contact, and a method for the production of this resin bonded graphite material. According to the invention, the resin-bonded graphite material if formed from a mixture of carbon black containing electro-graphite with a unburned graphite content of Rwherein R&#x2267;30 percent by weight, electro-graphite free of carbon black as well as binding agents. The material has a specific electrical resistance Wwherein W&#x2267;3500 &#x3bc;&#x3a9;m, and use of the resin bonded graphite material as an electrical contact makes possible substantial exclusion of radio interference.

Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereof

Growing community of inventors

Biebertal, Germany

Klaus-Georg Tontsch