Patents by Inventor Colin Walton

Colin Walton 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).

  • Submersible pump for pumping radioactive liquids
    Patent number: 5618166
    Abstract: A submersible pump for pumping radioactive liquids comprises a pump cartridge (2) which is removably mounted in a cavity (3) formed in the pump body (1). Seals (30a, 30b) are provided between the cartridge (2) and the cavity (3). The cartridge houses a pneumatically operated motor to drive an impeller which discharges liquid through an outlet duct (10). Compressed air required for driving the motor is supplied through an air inlet tube (12) and air exhausted from the motor is conveyed through an air outlet tube (14). Both the air inlet and the air outlet tubes extend through the interior of the outlet duct (10).
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: April 8, 1997
    Assignee: British Nuclear Fuels plc
    Inventors: Clive Legett, Leonard S. D. Taylor, Colin Walton, Simon J. White