Current transfer brush
AssigneeSiemens Aktiengesellschaft
InventorHeinrich Diepers
Life of this patent
Estimating the term…
Abstract
In a current transfer brush which includes a frame element holding together a flexible slider member containing several graphite fibers which are at least partly coated with an electrically conducting material, the slider member is made of a stack of a plurality of mats of highly graphitized graphite fibers, the mats extending at least approximately perpendicular to the contact surface of the brush with at least some of the fibers in mats coated with an electrically conducting material in order to give improved electrical characteristics for the brush over brushes utilizing a graphite block as the slider member, with the brush particularly useful in commutator machines.
Claims17
In a current transfer brush including flexible slider member containing a plurality of graphite fibers at least partially coated with an electrically conducting material and a frame element holding the fibers together at the end of the brush facing away from its contact surface, the improvement comprising, the slider member made of a flexible stack of a plurality of mats of highly graphitized graphte fibers, said mats directly adjacent each other extending at least approximately perpendicular to the contact surface of the brush, at least some of said mats coated with an electrically conducting material, said frame holding said mats only at the end of said mats facing away from the contact surface of the brush.
Dependencies are inferred from the claim text.