Patents by Inventor Douglas B. Boyers

Douglas B. Boyers 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).

  • Large diameter polytetrafluoroethylene or like seals
    Patent number: 7040628
    Abstract: A large-diameter PTFE seal. The lip of the seal is made from a long strip of PTFE bound together at the ends with the aid of a patching tape to form a closed loop. The loop is then flanged and placed between an inner and an outer case, together with a rubber-like gasket, and the cases are crimped together, entrapping the lip material between them.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: May 9, 2006
    Assignee: SKF USA Inc.
    Inventor: Douglas B. Boyers
  • Oil seal with antirotation ribs
    Patent number: 4856794
    Abstract: A unitized oil seal is provided with axially extending and radially protruding elastomeric ribs for preventing rotation of one of the oil seal members about a shaft or within a bore. The ribs are designed to reduce installation forces and thereby reduce seal damage due to excessive deformation during installation.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: August 15, 1989
    Assignee: Federal-Mogul Corporation
    Inventors: Douglas B. Boyers, Steven R. Wilkening