Patents by Inventor David Muffley

David Muffley 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).

  • High friction brake shoe assembly
    Publication number: 20050139439
    Abstract: A vehicle brake shoe assembly (10) having a rigid backing plate (12) incorporating a plurality of extensions (100) which project through the brake friction material matrix (22) to the outer friction surface (24) of the brake shoe assembly (10). Each extension (100) is configured to cooperate with the brake friction material matrix (22) to engage a surface of an opposing friction element (28) simultaneously with the friction material (22), increasing the static and dynamic friction performance of the assembly (10) during initial use beyond that achieved from the application of either the brake friction material (22) or the projections (100) alone.
    Type: Application
    Filed: January 18, 2005
    Publication date: June 30, 2005
    Inventors: Stanley Kulis, Craig Cook, David Muffley