Patents by Inventor Leslie Tibbels

Leslie Tibbels 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).

  • Apparatus for cleaning and descaling pipe lines
    Patent number: 4205694
    Abstract: The invention comprises a cage mountable on a pipe line and bearing a carriage movable on the cage around the pipe line. The carriage supports an elongate arm to lie in the longitudinal direction of the pipe and has a jet cleaning head reciprocable along the arm to clean the exterior of the pipe line. The cage has driven rollers thereon to drive the cage along the pipe line; and an indexing mechanism is provided to step the carriage around the pipe line.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: June 3, 1980
    Assignee: The Walton Mole Company Limited
    Inventors: David R. Thompson, Douglas Walton, Thomas W. Bainbridge, Leslie Tibbels