Patents by Inventor David Bruce Lester

David Bruce Lester 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).

  • Composition for non-squeal disc brake pads
    Patent number: 4075142
    Abstract: A system is disclosed for removing squeal or noise from automotive disc brake assemblies. An emulsion of a normally soft polymer together with a cellulosic thickener, an antifreeze compound, a biocide and pigment is coated onto the back side of the outboard pad assembly. When dry the outboard pad assembly is mounted on an automotive disc brake assembly.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: February 21, 1978
    Inventors: Norman Bernard Morse, David Bruce Lester
  • Method and composition for non-squeal disc brake pads
    Patent number: 3998301
    Abstract: A system is disclosed for removing squeal or noise from automotive disc brake assemblies. An emulsion of a normally soft polymer together with a cellulosic thickener, an anti-freeze compound, biocide and pigment is coated onto the back side of the outboard pad assembly. When dry the outboard pad assembly is mounted on an automotive disc brake assembly.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: December 21, 1976
    Assignee: Norman B. Morse
    Inventors: Norman Bernard Morse, David Bruce Lester