Patents by Inventor Christopher Flidh

Christopher Flidh 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).

  • Electrically operated valve actuator with electro-mechanical end stop detection device
    Patent number: 9482359
    Abstract: An electrically operated valve actuator effective for shifting a valve (10) between open and closed positions is disclosed, the valve actuator comprising a movable member in the form of a valve stem (21) connected to a valve body (14), the movable member being driven by an electric motor (22) in linear motion between valve closing and valve opening positions, wherein electrical power to the motor is supplied via a current (25) control including a supplied current detection device. The movable member is designed for an idling length of travel (L) in the opening and closing directions during which the valve (10) is either fully open or fully closed, and the movable member is associated with buffer means (30) that during the idling length of travel gradually increases the torque and power required to move the movable member further in the open and closed positions of the valve (10), respectively.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: November 1, 2016
    Assignee: Vetco Gray Scandinavia AS
    Inventors: Christian Borchgrevink, Jon Flidh, Paula Guimaraes, Christopher Flidh
  • ELECTRICALLY OPERATED VALVE ACTUATOR WITH ELECTRO-MECHANICAL END STOP DETECTION DEVICE
    Publication number: 20130056658
    Abstract: An electrically operated valve actuator effective for shifting a valve (10) between open and closed positions is disclosed, the valve actuator comprising a movable member in the form of a valve stem (21) connected to a valve body (14), the movable member being driven by an electric motor (22) in linear motion between valve closing and valve opening positions, wherein electrical power to the motor is supplied via a current (25) control including a supplied current detection device. The movable member is designed for an idling length of travel (L) in the opening and closing directions during which the valve (10) is either fully open or fully closed, and the movable member is associated with buffer means (30) that during the idling length of travel gradually increases the torque and power required to move the movable member further in the open and closed positions of the valve (10), respectively.
    Type: Application
    Filed: August 18, 2010
    Publication date: March 7, 2013
    Applicant: Vetco Gray Scandinavia AS
    Inventors: Christian Borchgrevink, Paula Guimaraes, Christopher Flidh