Brushes Patents (Class 427/114)
  • Publication number: 20120100203
    Abstract: Fabrication of yarns or other shaped articles from materials in powder form (or nanoparticles or nanofibers) using carbon nanotube/nanofiber sheet as a platform (template). This includes methods for fabricating biscrolled yarns using carbon nanotube/nanofiber sheets and biscrolled fibers fabricated thereby.
    Type: Application
    Filed: May 27, 2010
    Publication date: April 26, 2012
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Shaoli Fang, Marcio Dias Lima, Xavier N. Lepro-Chavez, Javier Carretero-Gonzalez, Elizabeth Castillo-Martinez, Raquel Ovalle-Robles, Carter Sebastian Haines, David Michael Novitski, Mohammad H. Haque, Chihye Lewis-Azad, Mikhail Kozlov, Anvar A. Zakhidov, Ray H. Baughman
  • Publication number: 20090169728
    Abstract: A motor brush material contains copper particles dispersed and configuring particle group structure supported in inner pores of a sintered body containing carbon as a major component.
    Type: Application
    Filed: March 9, 2009
    Publication date: July 2, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventor: Hiroshi KOBAYASHI
  • Patent number: 6068926
    Abstract: The invention relates to a carbon brush, which is impregnated with a modified siloxane.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: May 30, 2000
    Assignee: Schunk Kohlenstofftechnik GmbH
    Inventors: Rainer Sperling, Harald Friedrich, Gunter Schardt
  • Patent number: 5175065
    Abstract: An electrolyte dispensing ampule for deferred action batteries comprises a spring having means at both ends thereof for forming a closed, generally cylindrical space inside the spring and a metal layer covering the spring to hermetically seal the space. An electrolyte solution is contained in the spring and is dispersed to activate the battery when set-back forces extend the spring and break the sealing layer.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: December 29, 1992
    Assignee: Motorola Inc.
    Inventors: Richard H. Lammers, John R. Welling
  • Patent number: 4907733
    Abstract: 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.degree. F.) as well as ambient temperatures. A pocket of suitable dimensions and depth is molded into the carbon composite structure on both sides at an edge, with the edge relieved and rounded. A hole for a fastening member is molded or drilled in the approximate center of the pocket. After preparation of the surface the pocket, through hole, and relieved edge are nickel-plated to produce a rigid strong point. A doubler can be brazed to the nickel plate to strengthen the bond. The disclosed method can be used for attaching any type of electrically conductive composite material to a metallic structure.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: March 13, 1990
    Assignee: General Dynamics, Pomona Division
    Inventors: Wilson N. Pratt, Robert M. Haner
  • Patent number: 4605581
    Abstract: 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 containing an organometallic compound and an organic resin. The thereby impregnated brush blank is then cured to remove volatiles and retain approximately one to nine percent, by weight, of the organometallic compound and the organic resin in the brush blank.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: August 12, 1986
    Assignee: General Electric Company
    Inventors: Robert W. Stevens, Mark Markovitz
  • Patent number: 4461689
    Abstract: 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 particularly well adhering and relatively thick layers of the materials being deposited on the graphite members.
    Type: Grant
    Filed: June 20, 1978
    Date of Patent: July 24, 1984
    Assignee: Siemens Aktiengesellschaft
    Inventor: Heinrich Diepers
  • Patent number: 4332856
    Abstract: 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 eliminated, and impregnation temperatures are lowered significantly.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: June 1, 1982
    Assignee: Great Lakes Carbon Corporation
    Inventor: Harry L. Hsu
  • Patent number: 4330349
    Abstract: 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 mandrel. The brush backing or base may be formed by a number of methods utilizing the recesses on the surface of the mandrel. In one embodiment, the brush backing is formed by placing a strip of a conductive material in each of the recesses, and after the conductive fibers have been wound thereover, the conductive fiber windings are caused to adhere to each other by adhesive means and another strip of conductive material is placed over the windings to mate with the strip in the recess to form the backing for the conductive brush. Individual conductive brushes are obtained by cutting the conductive fibers in the longitudinal direction of the mandrel.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: May 18, 1982
    Assignee: Xerox Corporation
    Inventors: Joseph A. Swift, C. Michael Ray, Joan R. Ewing
  • Patent number: 4220884
    Abstract: 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 in gasoline without substantial loss of the electrical and mechanical properties of the brush.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: September 2, 1980
    Assignee: TRW Inc.
    Inventor: James H. Sternbergh
  • Patent number: 4177316
    Abstract: 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. The impregnating medium in the carbon brush is on a synthetic, mineral, animal or vegetable base which is thoroughly mixed with a gelatinizing agent on an inorganic and/or organic base and thereby transformed to a non-melting or non-flowing harder and more wear-resistant condition. The gelatinizing agent contained in the carbon brush as a component of the impregnating medium comprises montmorillonite flakes with surfaces coated with long-chain hydrocarbons. The carbon brush includes additives for improving the sliding properties in the form of inorganic and/or organic additives such as metal sulfides, metal oxides and PTFE powder. The carbon brush contains 0.1 to 25% by weight of impregnation medium relative to the weight of the impregnated carbon brush.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: December 4, 1979
    Assignee: Schunk & Ebe GmbH
    Inventors: Winfried Diegelmann, Gunter Schardt, Jochen Klatt, Heinz Grolz
  • Patent number: 4140832
    Abstract: Electromotive brushes having improved commutating properties composed of a dense, rigid plate of self-bonded, non-woven carbon fibers formed from mesophase pitch fibers.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: February 20, 1979
    Assignee: Union Carbide Corporation
    Inventor: Daniel J. Menegay
  • Patent number: 4132814
    Abstract: 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 process includes the immersion of completed electrodes into a water solution of polyethylene glycol, whereby the solution is absorbed between the carbon granules, following which the water vehicle is allowed to evaporate, leaving a thin coating of glycol which binds the carbon granules together without significantly altering the resistive qualities of the carbon.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: January 2, 1979
    Assignee: Porta Systems Corp.
    Inventors: Paul V. De Luca, William V. Carney, Arnold S. Louis
  • Patent number: 4119572
    Abstract: 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 heat treated to form ultraphosphates of metals evenly distributed throughout the entire volume of the material. The material is then impregnated in a film-forming polymer resin solution, which enhances the contact characteristics of the material, and again heat treated till the resin is fully polymerized. As a result, the ultraphosphates which have formed earlier in the material, are sealed, thus becoming hydrolytically stable; at the same time, the contact characteristics of the material improve generally, the material becoming highly wear resistant, capable of operating within a wide range of temperatures, pressures and humidity.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: October 10, 1978
    Inventors: Georgy Nikolaevich Fridman, Jury Nikolaevich Vasiliev, Abram Samoilovich Fialkov, Vladimir Petrovich Sosedov, Alexandr Andreevich Tarasov, Yakov Gilievich Davidovich, Nikolai Sergeevich Voronin, Alexei Gavrilovich Shirokov, Alexandr Iudovich Sokolovsky, Anatoly Alexandrovich Kozyrev, Roza Petrovna Berlizova, Evgeny Mikhailovich Kozlov, Anatoly Alexeevich Boiko, Andrei Nikolaevich Gusev, Olga Borisovna Kazakova, Valery Alexeevich Fugol, Nadezhda Vasilievna Kalinina, Valentina Mikhailovna Emelyanova, Abram Yakovlevich Gluskin, deceased, by Boris Abramovich Gluskin, administrator
  • Patent number: 3996408
    Abstract: 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 commutator machines under moderate or heavy commutation conditions at an operating temperature of the sliding contact from 200.degree. to 250.degree. C, and to a method for manufacturing same.Carbon-graphite brushes for electric machines are made of a material which, after impregnation and heat treatment of the organic impregnation compound contains a dry residue evenly distributed through out the entire bulk volume thereof, the dry residue being a mixture of melamine-glyptal resin with a metal linoleate, in a polymerized state.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: December 7, 1976
    Inventors: Georgy Nikolaevich Fridman, Jury Nikolaevich Vasiliev, Abram Samoilovich Fialkov, Yakov Gilievich Davidovich, Abram Yakovlevich Gluskin, Anatoly Alexandrovich Kozyrev, Roza Petrovna Batyreva, Evgeny Mikhailovich Kozlov, Anatoly Alexeevich Boiko, Olga Borisovna Kazakova, Nadezhda Vasilievna Kalinina, Valentina Mikhailovna Emelyanova, Igor Vyacheslavovich Yartsev