Patents by Inventor T. Charles Moore

T. Charles Moore 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).

  • Solenoid actuator and pulse drive
    Patent number: 4953616
    Abstract: A subsurface valve-actuator combination for well production tubing is described. The valve is urged to closed position but held open by a battery-operated latch of the actuator. A receiver-relay in the battery-actuator circuit maintains a switch closed to permit the latch to be energized as long as the receiver-relay receives an electromagnetic signal transmitted from the earth's surface. The latch is deenergized upon interruption of the signal and/or if the battery power is insufficient to energize the same.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: September 4, 1990
    Assignee: Develco, Inc.
    Inventors: Louis H. Borden, T. Charles Moore
  • Actuation method
    Patent number: 4878053
    Abstract: A subsurface valve-actuator combination for well production tubing is described. The valve is urged to closed position but held open by a battery-operated latch of the actuator. A receiver-relay in the battery-actuator circuit maintains a switch closed to permit the latch to be energized as long as the receiver-relay receives an electromagnetic signal transmitted from the earth's surface. The latch is deenergized upon interruption of the signal and/or if the battery power is insufficient to energize the same.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: October 31, 1989
    Assignee: Develco, Inc.
    Inventors: Louis H. Rorden, T. Charles Moore
  • Subsurface device actuator requiring minimum power
    Patent number: 4736791
    Abstract: A subsurface valve-actuator combination for well production tubing is described. The valve is urged to closed position but held open by a battery-operated latch of the actuator. A receiver-relay in the battery-actuator circuit maintains a switch closed to permit the latch to be energized as long as the receiver-relay receives an electromagnetic signal transmitted from the earth's surface. The latch is deenergized upon interruption of the signal and/or if the battery power is insufficient to energize the same.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: April 12, 1988
    Assignee: Develco, Inc.
    Inventors: Louis H. Rorden, T. Charles Moore