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| Number | Title | Issue Date |
| 7308759 | Method for production of a multi-layer carbon brush A method for production of a multi-layer carbon brush including at least two electrically-conducting functional layers made from carbon material and at least one insulation layer made from an electrically-insulating material, running between consecutive functional l... | 12/18/2007 |
| 7105977 | Metal-graphite brush and motor including metal-graphite brush A metal-graphite brush for supplying electricity to a coil wound around a core provided at a rotor of a motor is made of sintered material having porosities at a surface and inside thereof, and the porosities is infiltrated with a conductive liquid having a boiling ... | 09/12/2006 |
| 6068926 | Carbon brush and process for impregnating same The invention relates to a carbon brush, which is impregnated with a modified siloxane.... | 05/30/2000 |
| 5879747 | Composite material and process of producing same An electroconductive composite material composed of a three-dimensional continuum of a porous metal with the pores filled with graphite and a resin, having a good heat resistance, wear resistance, strength and thermal conductivity, having a light weight, ... | 03/09/1999 |
| 4907733 | Method for attaching carbon composites to metallic structures and product thereof A method is disclosed for creating a strong point for the attachment of carbon composites to metallic bodies that is suitable at high temperatures (1600° F.) as well as ambient temperatures. A pocket of suitable dimensions and depth is molded into the ca... | 03/13/1990 |
| 4605581 | Method of treating a carbon current collection brush blank and brush resulting therefrom A carbon current collection brush having improved wear characteristics and exhibiting a relatively low coefficient of friction at its sliding contact surface (e.g., with a commutator or slip ring) is made by impregnating a brush blank with a solution cont... | 08/12/1986 |
| 4461689 | Method and apparatus for coating a graphite member A method and apparatus for coating a member of graphite with a thin layer of an electrically highly conductive material from the vapor phase in which at least part of the material is deposited on the graphite member by ion plating to result in particularl... | 07/24/1984 |
| 4332856 | Carbon or graphite article and method of making by impregnating with a lignin sulfonate complex In a process for producing carbon or graphite articles, baked carbonaceous articles are impregnated with an aqueous solution of lignin sulfonate complex prior to carbonization or graphitization. The carcinogenic effects of conventional impregnants are eli... | 06/01/1982 |
| 4330349 | Method for preparing conductive fiber brushes A method for making conductive brushes which comprises providing a rotatable cylindrical mandrel having a plurality of longitudinal recesses on its surface, and winding electrically conductive fibers from a supply around the mandrel by rotating the mandre... | 05/18/1982 |
| 4220884 | Carbon brush for motors and method of making the same A brush for an electric motor including a body of porous carbon impregnated with tin or alloys of tin with either lead, zinc, or silver and combinations thereof. The metal impregnated brush can be used in an electric motor which is operated while immersed... | 09/02/1980 |
| 4177316 | Impregnated carbon brush for electrical machinery An impregnated carbon brush for electrical machinery with improved running properties and increased wear-resistance, in which the carbon brush has an impregnating medium containing non-melting grease, and/or a non-melting wax, and/or a non-flowing oil. Th... | 12/04/1979 |
| 4140832 | Electromotive brushes produced from mesophase pitch fibers Electromotive brushes having improved commutating properties composed of a dense, rigid plate of self-bonded, non-woven carbon fibers formed from mesophase pitch fibers. The brushes are produced by spinning a mesophase pitch to form carbonaceous pitch fib... | 02/20/1979 |
| 4132814 | Anti-dusting process for carbon resistors A process for impregnating carbon resistors used in the telephony art to reduce or eliminate dusting of carbon particles during arcing, thereby permitting gap distances to be accurately maintained, and the useful life of the electrodes to be extended. The... | 01/02/1979 |
| 4119572 | Carbon-graphite material for brushes of electric machines and method for preparing same A carbon graphite material for brushes of electric machines contains ultraphosphates of metals which are sealed by film-forming polymers. The material is impregnated in a mixture of a metal chloride with an aqueous solution of orthophosphoric acid and hea... | 10/10/1978 |
| 3996408 | Carbon-graphite brushes for electric machines and method for manufacturing same The present invention relates to heavy-current electrical engineering, and more particularly to carbon-graphite brushes characterized by high wear resistance and low adhesive capacity of the brush dust, said brushes being intended for operation in commuta... | 12/07/1976 |
