Patents by Inventor William G. Hill

William G. Hill 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).

  • Orbital welding torch
    Patent number: 4161640
    Abstract: The orbital welding torch described herein has a horse-shoe shaped body arranged to engage partially around the tubes to be butt welded when inserted from one side of the tubes, and a crescent shaped table carrying a welding head which is rotatably carried by the body so that rotation of the table relative the body orbits the welding head around the region of the weld, the open mouth of the table being capable of alignment with the open mouth of the body to enable the body to be inserted from one side of the tube to engage partially around the tubes.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: July 17, 1979
    Assignee: Foster Wheeler Energy Corporation
    Inventors: Robert A. C. Bromwich, William G. Hill, Charles M. Lawrence
  • Go-devil storage and discharge assembly
    Patent number: 4033408
    Abstract: Well tools comprising a go-devil actuated well safety valve, a locking assembly for releasably locking the safety valve at a desired depth in a well, running and pulling tools for installing and removing the safety valve, a go-devil ball for closing the safety valve, and apparatus for dropping the go-devil ball in a well under pressure and for retrieving the ball. The go-devil safety valve is mounted above the locking assembly and includes a trigger type latch which is released from above by the impact of the go-devil ball. The valve may be reset for reopening the valve without removal of the valve from the well bore by means of a special reset and pulling tool disclosed herein. The go-devil valve is installed in a well, preferably above a storm choke, to shut the well in under emergency conditions which releases the go-devil ball at the surface in response to hazardous conditions such as fire. The go-devil ball drops to the go-devil valve which closes in response to the impact of the ball.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: July 5, 1977
    Assignee: Continental Oil Company
    Inventors: John V. Fredd, William G. Hill
  • Safety valve for controlling flow in a flow conductor
    Patent number: 3955624
    Abstract: Well tools comprising a go-devil actuated well safety valve, a locking assembly for releasably locking the safety valve at a desired depth in a well, running and pulling tools for installing and removing the safety valve, a go-devil ball for closing the safety valve, and apparatus for dropping the go-devil ball into a well under pressure and for retrieving the ball. The go-devil safety valve is mounted above the locking assembly and includes a trigger type latch which is released from above by the impact of the go-devil ball. The valve may be reset for reopening the valve without removal of the valve from the well bore by means of a special reset and pulling tool disclosed herein. The go-devil valve is installed in a well, preferably above a storm choke, to shut the well in under emergency conditions which releases the go-devil ball at the surface in response to hazardous conditions such as fire. The go-devil ball drops to the go-devil valve which closes in response to the impact of the ball.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: May 11, 1976
    Assignee: Continental Oil Company
    Inventors: John V. Fredd, William G. Hill, Benjamin E. Kearney, John W. Tynan, deceased