Patents by Inventor John P. Kwolek

John P. Kwolek 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).

  • Brake friction pad assembly
    Patent number: 5535860
    Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: July 16, 1996
    Assignee: Wagner Electric Corporation
    Inventors: Alan R. Hummel, John P. Kwolek
  • Brake friction pad assembly
    Patent number: 5535858
    Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and completely thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: July 16, 1996
    Assignee: Wagner Electric Corporation
    Inventors: Alan R. Hummel, John P. Kwolek
  • Disc brake friction pad assembly
    Patent number: 5515950
    Abstract: An improved disc brake friction pad assembly is provided with a metallic backing plate element, a friction pad element, and a noise-dampening shim subassembly positioned intermediate the backing plate element and the friction pad element.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: May 14, 1996
    Assignee: Pneumo Abex Corporation
    Inventor: John P. Kwolek
  • Hybrid brake assembly with friction pads of different compositions
    Patent number: 5509511
    Abstract: A hybrid brake assembly is provided with both a resin-bonded metallic friction pad element and a resin-bonded non-asbestos, non-metallic friction pad element and hydraulic cylinder/piston elements for simultaneously actuating both friction pad elements in a vehicular braking operation.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: April 23, 1996
    Assignee: Pneumo Abex Corporation
    Inventor: John P. Kwolek
  • Brake friction pad assembly
    Patent number: 5480008
    Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: January 2, 1996
    Assignee: Wagner Electric Corporation
    Inventors: Alan R. Hummel, John P. Kwolek
  • Method of welding a friction material to a reinforcing member
    Patent number: 4050620
    Abstract: A method of making a brake friction pad which includes the steps of placing a sintered friction material into a retainer cup, heating the friction material and the retainer cup to a predetermined temperature in an inert atmosphere, and striking the friction material with a single blow of a predetermined force. This single blow increases the density of the friction material and establishes a metallurgical bond between the friction material and the retainer cup.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: September 27, 1977
    Assignee: The Bendix Corporation
    Inventors: John P. Kwolek, William G. Urso, Trevor D. Jones