Patents Represented by Law Firm Johnson & Gibbs
  • Patent number: 4856744
    Abstract: A support assembly for utilization with handles on strollers and the like for securement of articles thereto. The support assembly includes both a unit which is integrally formed with a handle and a discrete assembly for attachment to handles. The assembly is preferably of integrally molded plastic that comprises at least first and second hook portions adapted for supporting articles such as packages, clothes and purses from strollers, carts and the like. The assembly may also include a beverage container region adapted for the retention of a canned drink, baby bottle or the like. The assembly provides a myriad of hook configurations and demountable attachment sections for the securement of loose articles such as purses, sweaters, towels or other infant items. In this manner, strollers, bicycles and the like may be rendered safer and more convenient for the user who must handle loose articles.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: August 15, 1989
    Inventor: Gail Frankel
  • Patent number: 4844406
    Abstract: A blowout preventer for use on wellheads for sealing around tubing strings, polished rods, and wirelines, including a body having a bore therethrough and connectable on a wellhead, integral laterally opposed side chambers in the body, a closure cap over each of the side chambers, an operating screw through each of the closure caps, a seal assembly in each of the side chambers adapted to come together in the bore of the body to seal off flow through the body, each of the seal assemblies including a ram plate having only an upper backup plate and side retainer walls, and an elastic seal supported on each ram plate below the backup plate inside the retainer walls, adapted to compress together within the ram body bore for expanding and extruding sufficiently to fully seal off the bore through the body.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: July 4, 1989
    Assignee: Double-E Inc.
    Inventor: James A. Wilson
  • Patent number: 4844154
    Abstract: A well packer for sealing an annular space within a well bore around a tubing string including a tubular mandrel, an expandable seal assembly on the mandrel for sealing around the mandrel with a well bore wall, a slip assembly on the mandrel for releasably locking the packer with the well bore wall, a drag spring and slip carrier assembly around the slip assembly, and an interlock assembly for selectively coupling the drag spring and slip carrier assembly with the mandrel for operating the packer through running, set, and release modes. The packer also includes an emergency release feature for releasing the packer in the event that well obstructions or other problems prevent normal rotation of the tubing string and mandrel to operate the interlock assembly.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: July 4, 1989
    Assignee: Otis Engineering Corporation
    Inventors: Colby M. Ross, Pat M. White