Patents by Inventor Jim E. Kilmoyer

Jim E. Kilmoyer 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).

  • Pressure compensation/control for fail-safe gate valve
    Patent number: 6598849
    Abstract: A fail-safe gate valve for sub-sea use features a floating, pressure biased compensating piston whose movement prevents internal pressure buildup from opening movement of the gate. A pre-charged fluid chamber provides the bias on the balancing piston. Using unequal piston diameters reduces the charge pressure. The balancing piston is not connected to the gate so that internal pressures can be employed to act on a net area, which biases the gate toward its fail-safe position.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 29, 2003
    Assignee: Cooper Cameron Corporation
    Inventors: Loc C. Hoang, Jim E. Kilmoyer
  • PRESSURE COMPENSATION/CONTROL FOR FAIL-SAFE GATE VALVE
    Publication number: 20030116733
    Abstract: A fail-safe gate valve for sub-sea use features a floating, pressure biased compensating piston whose movement prevents internal pressure buildup from opening movement of the gate. A pre-charged fluid chamber provides the bias on the balancing piston. Using unequal piston diameters reduces the charge pressure. The balancing piston is not connected to the gate so that internal pressures can be employed to act on a net area, which biases the gate toward its fail-safe position.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Applicant: Cooper Cameron Corporation
    Inventors: Loc G Hoang, Jim E. Kilmoyer