Patents by Inventor Robert W. Burns

Robert W. Burns 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).

  • Patent number: 4877089
    Abstract: Apparatus for coupling wireline tools to coil tubing wherein a pull-out, disconnect, is provided. The pull-out consists of two tubular members with flared, bell-shaped portions, one such portion being coaxially disposed within the other. A ferrule applies pressure to the interface of the surfaces of said flared portions. Sufficient tension on the coil tubing pulls the flared portion of the interior member through the neck and out of the exterior member. Pilot valves prevent intrusion of bore hole fluid into the coupling device during logging and into the coil tubing if a pull-out has been effected.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: October 31, 1989
    Assignee: Western Atlas International, Inc.
    Inventor: Robert W. Burns
  • Patent number: 4250511
    Abstract: A single pass multicolor thermal transfer printer for recording color images on plain paper by transferring spots of different colored materials from a carrier sheet as it and a sheet of paper are moved across a printhead in contiguous relation. The printhead includes a plurality of individual thermal elements that are selectively energized in timed relation to transfer colored materials from discrete areas of the carrier to the paper as the sheets pass over the printhead. The carrier includes separate, repeating patterns of four different color materials--three primary colors plus black--permitting the formation of multicolor images by energizing the appropriate elements as areas of the desired color materials are moved into registration with them.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: February 10, 1981
    Assignee: Tektronix, Inc.
    Inventors: William W. Stein, Robert W. Burns