Patents by Inventor Edwin Swartz

Edwin Swartz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of manufacturing a developer roller
    Patent number: 6341420
    Abstract: A Method of Manufacturing a Developer Roller in which a wetting agent is added to a polymer and graphite to ensure thorough dispersion of the graphite. The developer roller's performance is further improved by spray applying a surface layer of graphite and wetting agent and burnishing this surface layer after spray application. Additional improvements are seen by using many multiple steps of spraying thin coats to improve adhesion between the spray applied coats.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: January 29, 2002
    Assignee: Static Control Components, Inc.
    Inventors: Edwin Swartz, Eugene H. Thomas
  • Durable coated magnetic development roller
    Patent number: 5749033
    Abstract: A cylindrical sleeve suitable for holding and conveying image forming toner particles is provided by a hollow cylinder of a non-magnetic material the exterior surface of which is texture by sand blasting and then by electrolessly coating the hollow cylinder with a durable uniform thin layer of an alloy of molybdenum, nickel and phosphorus. The interior of the hollow cylinder contains a magnet capable of generating a magnetic field sufficient to hold toner particles on the surface of the cylindrical sleeve.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: May 5, 1998
    Inventors: Edwin Swartz, Gene Thomas