Patents by Inventor Philip R. Landreth

Philip R. Landreth 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).

  • Grippable sliding seal strip
    Patent number: 4318249
    Abstract: A channel-shaped gripping element and a pile seal member are secured together to provide a grippable sliding seal strip. The gripping element is secured to a flange of a fixed member, and the pile seal member slidably engages the surface of a moving member. A flexible link member is interposed between the gripping element and the pile seal member. A guard arm is provided on one of the gripping elements and pile seal members for preventing penetration of the pile by flying foreign objects.
    Type: Grant
    Filed: February 27, 1980
    Date of Patent: March 9, 1982
    Assignee: Schlegel Corporation
    Inventor: Philip R. Landreth