Patents Examined by Roger J. Schoppel
  • Multiple use well packer
    Patent number: 5311939
    Abstract: A well packer for engaging and sealing against the inside of a conduit having a mandrel, friction blocks, slips, and a packer seal. The friction blocks are supported by the mandrel and positioned parallel to the slips providing a short inexpensive packer. The packer can be quickly and easily converted to be either a mechanical set bi-directional packer, a compression set well packer, or a tension set packer.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: May 17, 1994
    Assignee: Camco International Inc.
    Inventors: Ronald E. Pringle, Arthur J. Morris