Patents by Inventor Geoffrey M. Boyce

Geoffrey M. Boyce 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).

  • Powder deposition apparatus
    Patent number: 5152839
    Abstract: Sheet material is fed from a sheet supply station to a sheet receiving station and is guided by guiding means which defines a downwardly converging spray chamber floor and spray chamber side walls. The sheet material can be replaced when soiled by advancing a new length from the supply station to the receiving station.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: October 6, 1992
    Assignee: Volstatic Limited
    Inventors: Geoffrey M. Boyce, Ferdinando Trevisan
  • Improved spray chamber for powder deposition
    Patent number: 4934308
    Abstract: Sheet material is fed from a sheet supply station to a sheet receiving station and is guided by guiding means which define the floor as well as the side walls of a spray chamber. The sheet material can be replaced when soiled by advancing a new length from the supply station to the receiving station.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: June 19, 1990
    Assignee: Volstatic Limited
    Inventors: Geoffrey M. Boyce, Ferdinando Trevisan