Patents by Inventor Duncan Trinder

Duncan Trinder 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).

  • Well intervention tool and method
    Patent number: 9574420
    Abstract: A system to control fluid flow through a fluid passage includes a valve that is fail-safe closed to selectively control fluid flow through the fluid passage, and a hydraulic actuator operatively coupled to the valve to open the valve when hydraulic pressure above a predetermined amount is received. The system further includes an inlet to provide hydraulic pressure to the hydraulic actuator and open the valve and an outlet to vent hydraulic pressure from the hydraulic actuator and close the valve.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: February 21, 2017
    Assignee: OneSubsea IP UK Limited
    Inventors: Graham Hall, Robert Large, James Duncan Trinder
  • Well Intervention Tool and Method
    Publication number: 20150136409
    Abstract: A system to control fluid flow through a fluid passage includes a valve that is fail-safe closed to selectively control fluid flow through the fluid passage, and a hydraulic actuator operatively coupled to the valve to open the valve when hydraulic pressure above a predetermined amount is received. The system further includes an inlet to provide hydraulic pressure to the hydraulic actuator and open the valve and an outlet to vent hydraulic pressure from the hydraulic actuator and close the valve.
    Type: Application
    Filed: October 21, 2014
    Publication date: May 21, 2015
    Applicant: ONESUBSEA IP UK LIMITED
    Inventors: Graham Hall, Robert Large, James Duncan Trinder
  • Centraliser
    Publication number: 20050183864
    Abstract: There is disclosed an expandable centraliser for locating a body within a borehole, and a method of centralising tubing in a borehole. In an embodiment of the invention, an expandable centraliser (10) is disclosed, the centraliser (10) comprising a deformable body (12), and at least one abutment portion in the form of a shoulder (14) on the body (12), the shoulder (14) adapted to be urged radially outwardly on deformation of the body (12), to centralise tubing (28) coupled to the centraliser (10) within a borehole (15).
    Type: Application
    Filed: June 24, 2004
    Publication date: August 25, 2005
    Inventors: Duncan Trinder, Neil Andrew Simpson, Alexander Mackay