Patents by Inventor David W. Ager

David W. Ager 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).

  • Patent number: 5415677
    Abstract: A metal, U-shaped, annular cap is placed over one end of a cylindrical body of filter material. The metal end cap is retained on the body of filter material by a layer of plastisol and has adhered to the outside surface thereof an annular gasket made of either polyurethane or a closed or opened cell foam. The gasket presents an axially extending sealing surface for effecting a radial seal with a sealing flange in a filter housing. In accordance with another embodiment of the invention, a second annular gasket is provided which is adhered to the surface of the U-shaped end cap and extends axially therefrom. The second annular gasket has a radial surface for effecting an axial seal with a filter housing configured for axial sealing with filter elements disposed therewithin.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: May 16, 1995
    Assignee: Dana Corporation
    Inventors: David W. Ager, Edward A. Covington