Patents by Inventor Charles L. Wright

Charles L. Wright 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).

  • Tubing resettable well packer
    Patent number: 4750564
    Abstract: A tubing string resettable packer is conditioned for initial wireline installation in a well utilizing an adapter within a mandrel carrying the slip assembly of the packer and frangible connecting means between the sealing assembly and mandrel to place the sealing assembly in an alternate transport condition for first being set by means of a wireline device. Thereafter, the tubing string may be connected to the packer downhole to release the packer for resetting in a different position.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: June 14, 1988
    Assignee: Dresser Industries, Inc.
    Inventors: Thomas L. Pettigrew, Charles L. Wright
  • Manufacture of structural board panels
    Patent number: 4378401
    Abstract: A method of forming structural board panels from short strands of bagasse or other cellulistic material. The material resinated, compressed and cured to give an open structural block. A mortar screed of portland cement and sand is then applied to penetrate interstices between the strands and is built up with rendering and facing layers of mortar. A reinforcement, such as an open mesh net of resinated nylon strands may be incorporated in the facing layer.
    Type: Grant
    Filed: November 30, 1980
    Date of Patent: March 29, 1983
    Assignee: Borfglace Limited
    Inventor: Charles L. Wright