Class 310/253 - Carbonaceous

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter relating to carbonaceous compositions.
No. of patents: 36
Last issue date: 10/11/2011

Number	Title	Issue Date
8035272	Carbon brush with raw graphite particles A rotating electrical machine, which is a direct current motor, includes carbon brushes. Each carbon brush contains graphite grains, metal particles, and solid lubricant, which are sintered in a dispersed state. The graphite grains are each formed of granulated subs...	10/11/2011
7362030	Brush type small motor having non-linear spring device A spring device includes of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a linear spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance ...	04/22/2008
7202586	Electrical contact member There is provided an electrical contact member where wear can be reduced. The electrical contact member is characterized by one or both of conductive metal particles and conductive metal fibers, at least outer circumferential surfaces of which have been modified wit...	04/10/2007
7129615	Metal coated carbon brush Disclosed is a metal coated carbon brush having a carbonaceous substrate and a metal coating formed on a surface of the carbonaceous substrate having a mean pore radius of 0.1–2.0 μm and an accumulative pore volume of 50–600 mm3/g. ...	10/31/2006
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
7094366	Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereof 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 bl...	08/22/2006
6949863	Metal-graphite brush A metal-graphite brush comprises a brush body which is made by mixing and molding metal powder and graphite powder. 2 mg to 30 mg as amounts of phosphate ion of at least one of phosphoric acid and a phosphate compound is added to 1 g of the brush body of the metal-g...	09/27/2005
6909219	Carbon brush for electric machine Molybdenum disulfide, tungsten disulfide or the like as a solid lubricant and any of alumina, silica, silicon carbide or the like as an abrasive are added to filter graphite. A metal of good electric conductor is coated over the whole surface of a carbon brush mater...	06/21/2005
6787963	Brush assembly An brush assembly is provided in which electric power losses in brushes 32 are reduced, thereby suppressing an abnormal or excessive rise in temperature of the brushes. A tip end of a lead wire 33 inserted into a corresponding brush 32 in a dire...	09/07/2004
6700292	Metal-graphite brush A metal-graphite brush has a copper-graphite brush body to which a metal sulfide solid lubricant is added and a lead embedded. Indium is at least added to an interface between the brush body and the lead in a concentration of 0.4-8 wt %....	03/02/2004
6663362	Fluid pump with a motor housing and method for producing a motor housing A fluid pump, in particular for the cooling or heating circuit of a motor vehicle, has a claw pole stator and a rotor that is separated from the claw pole stator by a tube, is immersed in a fluid, and has a vane wheel. Claws (25) of the claw pole stator (...	12/16/2003
6268679	Carbon brush for an electrical machine in a vehicle The invention relates to carbon brushes for electrical machines with commutator in a vehicle with a 36 volt electrical system. According to the invention, the specific electrical resistance of a carbon brush that can be used in a starter motor is greater ...	07/31/2001
6232694	Starter generator with slots in the commutator head assembly This invention relates to improvements in electric power systems for aircraft and, more particularly, to such systems which provide both starter and generator functions. The present invention has particular applicability to starter generators for helicopt...	05/15/2001
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
5843567	Electrical component containing magnetic particles There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the ...	12/01/1998
5701046	Process for the production of multi-layered brushes and brushes obtained by the process The process comprising the charging into a mould (3) of at least one electrically conductive powder (4), the compression by means of a piston (5) of the contents of the mould to form a crude brush (7), the heat treatment of said crude brush (7) as well as...	12/23/1997
5488261	Carbon brush and fastening a braided indicator wire therein The invention relates to a carbon brush (10) with a braided indicator wire (26), (28) for indicating a defined wear of the carbon brush. The braided indicator wire is embedded in a blind bore (30), and is disposed spaced apart from the bottom (32) of the ...	01/30/1996
5365136	Brush for an electric motor having low sensitivity to vibrations Brush for electric motors obtained by compression of an electrically conductive powder containing one end of an electrical conductor so as simultaneously to allow the formation of the brush and the mechanical fixing of said electrical conductor, and chara...	11/15/1994
5354607	Fibrillated pultruded electronic components and static eliminator devices Static eliminator device includes a nonmetallic pultruded composite member having a plurality of conductive carbon fibers provided within a polymer matrix of thermosetting resin, wherein the plurality of carbon fibers are oriented within the polymer matri...	10/11/1994
5285126	Collector shoe and method for producing it A press-molded collector shoe having a body made of a first carbon piece, and a layer disposed on a side thereof made of a second, less conductive carbon piece. The second piece covers only a portion of the side of the collector shoe. An electrical lead p...	02/08/1994
5177529	Machine with removable unit having two element electrical connection An electrostatographic printing machine comprising a main frame and at least one unit insertable into and removable from said main frame for cooperative association therewith in producing prints, said main frame and said removable unit having at least one...	01/05/1993
5139862	Pultruded electronic device An electronic device for conducting electric current has two contacting components at least one of which is a nonmetallic electronic contact in the form of a pultruded composite member made of a plurality of small generally circular cross section conducti...	08/18/1992
4799957	Intercalated graphite containing electrical motor brushes and other contacts An electric motor brush or other electrical contact fabricated with intercalated graphite exhibits improved electrical conductivity, strength and performance when compared with electrical brushes made with non-intercalated graphite or with carbon. Such co...	01/24/1989
4739209	Starter-generator brush A starter-generator brush has first and second juxtaposed carbon wafers. A first copper plate is provided on a recessed back surface of the first carbon wafer. A first electrically conductive hammer place has a first copper back plate on a recessed back s...	04/19/1988
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
4443726	Brushes and method for the production thereof A brush, for use for example as an electrical pick-up, includes a brush portion composed of a bundle of metal coated carbon fibers arranged substantially in parallel. A base portion includes a region where the metal coated fibers have been bonded by diffu...	04/17/1984
4422918	Current-conducting assembly for a traveling wire-electrode A current-conductor assembly for conducting a machining current to a wire electrode in a wire-cutting electroerosion machine comprises a pair of coplanar wheels rotatable about their respective shafts and having their respective peripheries for receiving ...	12/27/1983
4189702	Commutator and fiber brush rotating disc An improved slip ring and brush assembly such as for carrying the return signal pulse to a glow discharge tube on a rotating disc sonar. The rotating disc is made of insulating material and has a cylindrical hub which is adapted to fit over a correspondin...	02/19/1980
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
4117363	DC motor Disclosed is a DC motor comprising a rotor consisting of a rotary shaft, a disk carried by the rotary shaft coaxially thereof and a plurality of prefabricated coils mounted on the disk and equiangularly spaced apart from each other; brushes attached on th...	09/26/1978
4101453	Sintered composition A sintered composition used as a brush for a dynamo electric machine contains copper, carbon and silicon carbide....	07/18/1978
4034249	Commutator rounding brush An electrical contact brush having interposed in a central longitudinal slot an abrasive element which frictionally contacts the commutator surface at crests where the radius of curvature of the commutator is less than that of a concave contact surface pr...	07/05/1977
4027967	Apparatus for connecting a moving photoconductive web with a fixed electric potential An electrophotographic apparatus having a movable web of plastic material on which is disposed a vapor-deposited conductive layer and a photoconductor layer. The conductive layer is in slidable contact with a fixed potential stationary electrical contact ...	06/07/1977
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

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Class 310/253 - Carbonaceous