Patents by Inventor Mark M. Migda

Mark M. Migda 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).

  • Unitized polytetrafluoroethylene radial lip seal
    Patent number: 5209499
    Abstract: A unitized radial lip seal assembly includes an outer annular case and an inner annular wear sleeve loosely interlocked by flanges or walls formed at the axial ends of the wear sleeve. After initial installation of the unitized assembly within a housing, the wear sleeve can be axially shifted a slight distance to provide a slight axial separation of the wear sleeve from the annular case. Two separate lip seal elements are mounted to the outer annular case and protected from damage during shipping and installation by abutting surfaces of the case and wear sleeve.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: May 11, 1993
    Assignee: Mather Seal Company
    Inventors: Donald N. Ruff, Jr., Mark M. Migda