Patent ID: 7622844

Claim:
An electrical brush for electrically contacting a moving contact surface, comprising: plural conductive elements; at least one conditioning material disposed on interior ones of the plural conductive elements and in contact with the moving contact surface; a thickness of the conditioning material on the plural conductive elements ranging from S C =0.01 μm to 15 μm; the conditioning material having a composition such that, when in sliding contact with a moving contact surface, the conditioning material has an average film thickness on the contact surface of S from several atomic layers to 1 μm, so that current is conducted over a fractional conducting area f C of the contact surface S, where 0.01≦f C ≦1; a foot print of the conductive elements having a current conductive area in which a film thickness S i is 1.0 nm≦S i ≦12 nm thick; and said at least one conditioning material includes at least one of a lanoline compound, a triazole compound, and a scotchguard compound.