Patents by Inventor Keith Glass

Keith Glass 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).

  • Speed control drive section with failsafe valve
    Patent number: 8479345
    Abstract: A system and method for retrieving a pipeline tool from a pipeline includes a speed control drive section that includes a primary bypass flow valve and a failsafe valve located in a central bypass flow passageway of the drive section. The failsafe valve is placed under the control of a controller. The controller is programmed to release the failsafe valve under prescribed failure conditions. An actuating means moves the failsafe valve between a normally opened positioned and a closed position in response to the controller.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: July 9, 2013
    Assignee: TDW Delaware, Inc.
    Inventors: Jed Ludlow, Keith Glass, Jonathan Warkentin, Paul Laursen
  • Speed Control Drive Section with Failsafe Valve
    Publication number: 20110036407
    Abstract: A system and method for retrieving a pipeline tool from a pipeline includes a speed control drive section that includes a primary bypass flow valve and a failsafe valve located in a central bypass flow passageway of the drive section. The failsafe valve is placed under the control of a controller. The controller is programmed to release the failsafe valve under prescribed failure conditions. An actuating means moves the failsafe valve between a normally opened positioned and a closed position in response to the controller.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Inventors: Jed Ludlow, Keith Glass, Jonathan Warkentin, Paul Laursen