Patents by Inventor William H. Searfoss

William H. Searfoss 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).

  • Friction material
    Patent number: 4218361
    Abstract: A heat resistant low abrasion high strength friction material with a high resistance to wear is described as containing asbestos fibers, phenolic resin, spun blast furnace slag fibers, rubber particles, a filler and ferrous or non-ferrous particles. The friction material finds particular use in the formation of brake blocks, drum brake lining and disc pads for vehicle braking systems and the like.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: August 19, 1980
    Assignee: Molded Materials Company, Div. Carlisle Corporation
    Inventors: William H. Searfoss, Gerald P. Jones
  • Brake block material
    Patent number: 4187209
    Abstract: Low abrasion, heat resistant, high strength friction material with a high resistance to wear is described as containing phenolic resin, an organic modifier, processed mineral fibers and a filler. Rubber, either natural or synthetic, graphite, a metallic oxide, a color pigment, and factice may also be present. The material finds particular use in friction materials for brake blocks, drum brake linings and disc pads for vehicle braking systems and the like.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: February 5, 1980
    Assignee: Molded Materials Company, Div. Carlisle Corporation
    Inventors: William H. Searfoss, Gerald P. Jones
  • Brake block material
    Patent number: 4150011
    Abstract: Low abrasion, heat resistant, high strength friction material with a high resistance to wear is described as containing phenolic resin, an organic modifier, mineral fibers, metallic oxide, a filler and a color pigment. Rubber, either natural or synthetic, graphite and factice may also be present. The material finds particular use in a brake block for disc and drum brake applications on heavy duty trucks and the like.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: April 17, 1979
    Assignee: Molded Materials Company, Div. of Carlisle Corporation
    Inventors: William H. Searfoss, Gerald P. Jones