Patents Assigned to Douglas Ross Fleet
  • Moulded product
    Patent number: 4497662
    Abstract: A process of moulding a product (and a product thus formed) wherein particulate ligno-cellulose such as shredded paper, flour, Portland cement, a small amount of caustic soda, and water are mixed together, placed in a mould, and subjected to both pressure and heat until set, and the moulded product is then removed from the mould.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: February 5, 1985
    Assignee: Douglas Ross Fleet
    Inventors: Donald M. Chisholm, Colin Newton, Stanley W. Winchester