Patents by Inventor Lawrence E. Satterwhite

Lawrence E. Satterwhite 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: 4489959
    Abstract: An underwater hydraulic connector utilizing a cylindrical male portion inserted into a cavity in a female portion. The male portion consists of a telescoping inner and outer housing with a plurality of resilient seals mounted within openings in the outer housing whereby if the seals are compressed they will extrude beyond the surface of the male portion and contact the interior surface of a female portion so as to provide a sealed passageway between a set of ports in the male and female portions. The extrusion of the seal is accomplished by means of a bar which compresses the seal when moved longitudinally with respect to the outer housing. The bar is mounted on the inner housing. Relative movement of the inner housing and bar with respect to the outer housing is controlled by means of a piston and cylinder assembly and compression of the resilient seals is assisted by the external water pressure acting upon the inner housing to force it into the outer housing.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: December 25, 1984
    Inventor: Lawrence E. Satterwhite
  • Patent number: 4467833
    Abstract: A control valve and a multiple control system therefor for controlling a plurality of remotely positioned hydraulically actuated underwater devices. The control valve includes first and second equal size pilot pistons acted upon by first and second pilot ports, respectively, for moving the valve to either an open or closed position, and third and fourth unequal size pilot pistons acted upon by third and fourth pilot ports for moving the valve to either an open or closed position. The control valve may be operated in an electro-hydraulic control mode by the use of electrically actuated valves controlling the supply of fluid to the first and second ports. In addition, the control valve can be operated in a hydraulic mode by hydraulically controlling the supply of fluid to the third and fourth pilot ports.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: August 28, 1984
    Assignee: NL Industries, Inc.
    Inventors: Lawrence E. Satterwhite, Lawrence F. Angelo
  • Patent number: 4091514
    Abstract: A subsea machine tool for preparing the end of a bare piece of pipe in a subsea location for receiving an overfitting coupling and includes a support assembly adapted for raising and lowering in a body of water. A pipe clamp is attached to each end of the support assembly for clamping the pipe. A split frame is supported by the support assembly for axial travel. A split ring gear assembly is supported by the frame for rotation therein and about the pipe section. The split ring gear is in the form of a spool assembly wherein an involute gear forms one flange of the spool and a face plate forms the other flange. The spool is supported about the exterior thereof by a split fixed ring which in turn is supported by the frame. The fixed ring has mounted thereon one or more hydraulic motors which are arranged for rotating the ring gear relative to the fixed ring. The face plate has mounted thereon for rotation therewith work means in the form of a milling machine.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: May 30, 1978
    Assignee: HydroTech International, Inc.
    Inventors: Corroll J. Motes-Conners, Lawrence E. Satterwhite