Patents by Inventor Clive M. Kitson

Clive M. Kitson 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).

  • Method of sealing a discontinuity within a gas main
    Patent number: 5156886
    Abstract: A method of sealing a joint in a gas main comprising boring a hole in the wall of the main at a point spaced from the joint, inserting into the main through the hole so formed a sealant spraying means, moving the spraying means to the site of the joint, pumping a settable anaerobic type sealant to the spraying means, causing the spraying means to spray the sealant onto the inner wall of the main to form a layer covering the joint, removing the spraying means through the hole and allowing the sealant to set.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: October 20, 1992
    Assignee: British Gas plc
    Inventor: Clive M. Kitson