Patents by Inventor Robert Sean Cunningham

Robert Sean Cunningham 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).

  • Seals for air filters
    Patent number: 6712870
    Abstract: An annular air filter utilizes an end gasket which is snap fitted to a metal end cap. The gasket has a sealing lip with a radially extending, axially facing sealing face for sealing with a filter housing; and an annular, axially extending body portion. The annular, axially extending body portion has an axially extending, radially facing sealing surface for sealing with an air outlet pipe projecting into the housing. The gasket is made of foam rubber, rubber or polyurethane material and is optionally fixed on the air filter element with adhesive.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: March 30, 2004
    Assignee: Dana Corporation
    Inventors: Willie Luther Stamey, Jr., Robert Sean Cunningham