Patents by Inventor Graeme Walker

Graeme Walker 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).

  • Leak detection of gas containers using an optical detector
    Patent number: 10830660
    Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: November 10, 2020
    Assignee: Cascade Technologies Holdings Limited
    Inventors: Paul Miller, Graeme Walker, Iain Howieson, Ruth Lindley
  • LEAK DETECTION
    Publication number: 20170108397
    Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 20, 2017
    Inventors: Paul Miller, Graeme Walker, Iain Howieson, Ruth Lindley
  • Interventionless Reservoir Control Systems
    Publication number: 20070119599
    Abstract: Systems and methods for positively closing off a section of wellbore and, thereby providing reservoir control. Systems and methods are described for selectively closing off a section of a wellbore to fluid communication. The wellbore completion section may then be reopened to fluid communication upon reconnection of the upper completion section to the lower completion section. Advantageously, the systems and methods of the present invention generally preclude fluid communication between the annulus of the upper completion section and the flowbore of the lower completion section until the lower completion section is closed off to fluid flow.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Raymond Chavers, Graeme Walker, John Cobb, Alfredo Gomez
  • Interventionless reservoir control systems
    Publication number: 20050092501
    Abstract: Systems and methods for positively closing off a section of wellbore and, thereby providing reservoir control. Systems and methods are described for selectively closing off a section of a wellbore to fluid communication. The wellbore completion section may then be reopened to fluid communication upon reconnection of the upper completion section to the lower completion section. Advantageously, the systems and methods of the present invention generally preclude fluid communication between the annulus of the upper completion section and the flowbore of the lower completion section until the lower completion section is closed off to fluid flow.
    Type: Application
    Filed: February 20, 2004
    Publication date: May 5, 2005
    Applicant: Baker Hughes Incorporated
    Inventors: Raymond Chavers, Graeme Walker, John Cobb, Alfredo Gomez