Patents by Inventor Andrew John Stoney

Andrew John Stoney 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).

  • Barrier system for mechanical seal
    Patent number: 11079021
    Abstract: A barrier system for a dual mechanical seal, the system comprising means for controlling barrier fluid pressure relative to product pressure. The pressure control means comprises means for monitoring the volume of barrier fluid in the system and for supplying additional fluid to the system to maintain the volume within a desired range. The system further comprises means for maintaining the barrier fluid pressure at a pre-determined pressure above product pressure.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 3, 2021
    Inventor: Andrew John Stoney
  • Valve
    Patent number: 9188234
    Abstract: A valve includes a housing having a fluid inlet and a fluid outlet defines a fluid flow path between the fluid inlet and the fluid outlet. A device is included for restricting the flow between the inlet and the outlet which has a fixed flow restriction device for applying a pre-determined counter-flow pressure and a device for applying an additional counter-flow pressure according to the pressure in an environment external to the valve.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 17, 2015
    Assignee: AES Engineering Ltd.
    Inventor: Andrew John Stoney
  • Seal support system pressure tracking value
    Patent number: 9098094
    Abstract: A pressure regulation tracking valve for maintaining the pressure of a gas relative to that of a process fluid includes a device, responsive to change in the pressure of the process fluid, for changing the pressure of the gas by substantially the same amount. The valve further includes a device for accommodating a pressure transfer medium for transferring the pressure of the process fluid to the gas pressure changing device. As a result, contact between the process fluid and the gas pressure changing device is avoided.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 4, 2015
    Assignee: AES Engineering Ltd.
    Inventors: Christopher John Carmody, Stephen Martin Shaw, Andrew John Stoney
  • Barrier System for Mechanical Seal
    Publication number: 20140367919
    Abstract: A barrier system for a dual mechanical seal, the system comprising means for controlling barrier fluid pressure relative to product pressure. The pressure control means comprises means for monitoring the volume of barrier fluid in the system and for supplying additional fluid to the system to maintain the volume within a desired range. The system further comprises means for maintaining the barrier fluid pressure at a pre-determined pressure above product pressure.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventor: Andrew John Stoney
  • VALVE
    Publication number: 20140209183
    Abstract: A valve includes a housing having a fluid inlet and a fluid outlet and defining a fluid flow path between the fluid inlet and the fluid outlet. A device is included for restricting the flow between the inlet and the outlet has includes comprise fixed flow restriction device for applying a pre-determined counter-flow pressure and a device for applying an additional counter-flow pressure according to the pressure in an environment external to the valve.
    Type: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Inventor: Andrew John Stoney
  • SEAL SUPPORT SYSTEM PRESSURE TRACKING VALUE
    Publication number: 20130048108
    Abstract: A pressure regulation tracking valve for maintaining the pressure of a gas relative to that of a process fluid includes a device, responsive to change in the pressure of the process fluid, for changing the pressure of the gas by substantially the same amount. The valve further includes a device for accommodating a pressure transfer medium for transferring the pressure of the process fluid to the gas pressure changing device. As a result, contact between the process fluid and the gas pressure changing device is avoided.
    Type: Application
    Filed: April 26, 2011
    Publication date: February 28, 2013
    Inventors: Christopher John Carmody, Stephen Martin Shaw, Andrew John Stoney