Patents by Inventor Steve Holden

Steve Holden 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).

  • Plug release apparatus
    Patent number: 8276665
    Abstract: A plug release apparatus for use in a well bore, the apparatus having a canister, a liner plug, and a sub. The liner plug may be releasably attached to the canister via a first release mechanism. The sub may be releasably attached to the canister via a second release mechanism. The first release mechanism may be configured to release the liner plug from the canister at a first pressure and the second release mechanism may be configured to release the canister from the sub at a second pressure.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: October 2, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Earl Webb, Henry Rogers, Steve Holden, Steve Streich, Brock Watson
  • Plug Release Apparatus
    Publication number: 20090250217
    Abstract: A plug release apparatus for use in a well bore, the apparatus having a canister, a liner plug, and a sub. The liner plug may be releasably attached to the canister via a first release mechanism. The sub may be releasably attached to the canister via a second release mechanism. The first release mechanism may be configured to release the liner plug from the canister at a first pressure and the second release mechanism may be configured to release the canister from the sub at a second pressure.
    Type: Application
    Filed: April 3, 2008
    Publication date: October 8, 2009
    Inventors: Earl Webb, Henry Rogers, Steve Holden, Steve Streich, Brock Watson
  • Variable speed control of multiple motors
    Patent number: 6659726
    Abstract: A system for variable speed control of a plurality of motors under variable load demand is provided. The system includes a constant power source and a plurality of motors having electrical circuits with switches to connect with the constant power source. The system further includes a variable speed drive for driving each of the plurality of motors at variable speed, wherein each of the plurality of motors includes a switch to connect with the variable speed drive. Each of the plurality of motors is selectively electrically connected with the variable speed drive and the constant power source via the switches, for driving the each of the plurality of motors at one of variable and constant speed in response to load demands. To prevent short cycling of the motors under situations of increasing system demand, the control algorithm for the electrical switches provides hysteresis by overspeeding one of the motors before switching from variable speed mode to constant speed mode.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: December 9, 2003
    Assignee: Carrier Corporation
    Inventor: Steve Holden
  • Variable speed control of multiple motors
    Publication number: 20030123989
    Abstract: A system for variable speed control of a plurality of motors under variable load demand is provided. The system includes a constant power source and a plurality of motors having electrical circuits with switches to connect with the constant power source. The system further includes a variable speed drive for driving each of the plurality of motors at variable speed, wherein each of the plurality of motors includes a switch to connect with the variable speed drive. Each of the plurality of motors is selectively electrically connected with the variable speed drive and the constant power source via the switches, for driving the each of the plurality of motors at one of variable and constant speed in response to load demands. To prevent short cycling of the motors under situations of increasing system demand, the control algorithm for the electrical switches provides hysteresis by overspeeding one of the motors before switching from variable speed mode to constant speed mode.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 3, 2003
    Inventor: Steve Holden