Patents by Inventor Robert B. Rigg

Robert B. Rigg 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).

  • Apparatus for waste encapsulation
    Patent number: 4761127
    Abstract: A drum to receive waste, in particular radioactive waste, and an encapsulating material such as cement is located on a vibratable platform beneath a charge chute. The platform is mounted on an inflatable support, conveniently a plurality of air cushions, operable to lift and maintain the drum in sealing engagement about the charge chute during filling of the drum. Vibration means on the platform vibrate the drum and its contents without breaking the sealing engagement.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: August 2, 1988
    Assignee: British Nuclear Fuels Plc
    Inventors: Michael J. O'Brien, Robert B. Rigg