Patents by Inventor John Richard Carew Armstrong

John Richard Carew Armstrong 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).

  • SUPPORT FOR WATER TURBINE
    Publication number: 20140328680
    Abstract: An underwater turbine mounting includes a rigid tether having one end attached thereto at a pivot, and the other end adapted for connection to an underwater anchorage. The rigid tether is pivotable between a deployment condition and an anchorage condition. The mounting is pivotable between a deployment condition and an operating condition solely by adjusting the buoyancy thereof. The mounting is pivotable between an operating condition and a maintenance condition solely by adjusting the buoyancy thereof.
    Type: Application
    Filed: December 6, 2012
    Publication date: November 6, 2014
    Inventors: Michael Torr Todman, John Richard Carew Armstrong
  • Underwater welding
    Patent number: 3973712
    Abstract: Underwater welding apparatus including a welding chamber and at least one source of gas under pressure connected to the welding chamber through a demand valve, in which the demand valve allows the flow of gas to the chamber to increase as the increase in the hydrostatic head causes the pressure of the gas in the chamber to increase, and to decrease as the hydrostatic head decreases.
    Type: Grant
    Filed: October 16, 1974
    Date of Patent: August 10, 1976
    Assignee: BOC International Limited
    Inventors: John Richard Carew Armstrong, Denis John Marshall