Patents by Inventor Edwin M. Rowbotham

Edwin M. Rowbotham 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).

  • Inflation valve for tubeless tire
    Patent number: 4049037
    Abstract: An inflation valve for a tubeless tire according to the present disclosure includes a one-piece valve housing that is molded of a rigid plastic material. The housing has an internal passage threaded at one end to accommodate a valve core. The base of the housing has an annular groove defined in part, by a three part flange that permits the housing to be forced through a valve hole in the wheel rim. A rubber O-ring contained in the annular groove forms a seal between the valve housing and the wheel rim.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: September 20, 1977
    Assignee: Ford Motor Company
    Inventors: Ronald J. Gale, Edwin M. Rowbotham