Patents by Inventor Jerrie L. Terry

Jerrie L. Terry 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).

  • Device and method providing redundant automatic clutch release and engine shut down on a drilling or production rig
    Patent number: 8128067
    Abstract: A drilling rig control system adapted for easy interface between a compressed air supply and a drilling rig clutch and brake. Both manual and automatic controls are provided to initiate the device to interrupt and vent the compressed air supply to the clutch and concurrently communicate compressed air to the brake to cause it to engage the drum winding the cable for the rig. Over-pull sensors monitor cable tension and initiate valves in the control system to initiate the compressed air interruption and rerouting upon any sense of over-pull.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: March 6, 2012
    Inventors: William A. Terry, Jerrie L. Terry
  • Device and Method Providing Redundant Automatic Clutch Release and Engine Shut Down on a Drilling or Production Rig
    Publication number: 20100147588
    Abstract: A drilling rig control system adapted for easy interface between a compressed air supply and a drilling rig clutch and brake. Both manual and automatic controls are provided to initiate the device to interrupt and vent the compressed air supply to the clutch and concurrently communicate compressed air to the brake to cause it to engage the drum winding the cable for the rig. Over-pull sensors monitor cable tension and initiate valves in the control system to initiate the compressed air interruption and rerouting upon any sense of over-pull.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Inventors: William A. Terry, Jerrie L. Terry