Patents by Inventor Roy A. Eastham

Roy A. Eastham 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).

  • Drum brake linings having thermally or mechanically applied metallic shoe attachment enhancements
    Publication number: 20030057038
    Abstract: Drum brake linings having an integral surface texture on the friction side surface of a drum brake shoe are described. The surface texture may be achieved by spraying metal droplets onto the surface, fusing a metal pattern onto the surface, or creating a series of protrusions by scraping or cutting the surface. The surface textures have excellent shear strength and retention profiles.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: Sunil K. Kesavan, Roy A. Eastham, Kent L. Fairless
  • Method of manufacturing a disc brake pad
    Patent number: 4914801
    Abstract: A disc brake pad and shim assembly consists of a disc brake pad having a back plate with spigot holes which are incompletely filled and a shim with protrusions extending into the unfilled regions of the spigot holes, to stop slippage of the shim across the back plate in service.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: April 10, 1990
    Assignee: Ferodo Limited
    Inventors: Roy Sweetmore, Roy A. Eastham
  • Disc brake pads
    Patent number: 4846312
    Abstract: A disc brake pad and shim assembly consists of a disc brake pad having a back plate with spigot holes which are incompletely filled and a shim with protrusions extending into the unfilled regions of the spigot holes, to stop slippage of the shim across the back plate in service.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: July 11, 1989
    Assignee: Ferodo Ltd.
    Inventors: Roy Sweetmore, Roy A. Eastham