Patents by Inventor Brian W. York

Brian W. York 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 repairing or replacing piping and inflatable plug
    Patent number: 4827984
    Abstract: A method of repairing piping by inserting an inflatable plug 30 through a pressure housing 28 and valve 24, inflating the plug and then inserting a screwed sealed plug 47 into a special flange 49 which is attached to an existing pipe flange. The plug 30 has a sealing ring 36 with a tread 37 and segmented steel rings 38. After the plug is inserted the piping may be repaired or replaced and the inflatable plug deflated and removed with the screwed plug 47 by a system of rods extending through the valve and pressure housing.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: May 9, 1989
    Assignee: Mobil Oil Corporation
    Inventors: James R. F. Young, Brian W. York, Kenneth S. Hemingway