Patents by Inventor David T. Malcolm

David T. Malcolm 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).

  • Method of making overlaid plywood
    Patent number: 4541880
    Abstract: Overlaid plywood is made by filling surface defects on a plywood panel with a thermosetting resin; overlaying the filled surface(s) with sheet(s) of overlay paper and then compressing the panel, while heating the panel. Gluelines in the plywood veneer and in the overlay paper(s) are cured during the hot pressing operation, which also flattens and hardens the resin-filled defects to form a smooth-surfaced overlaid plywood panel.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: September 17, 1985
    Assignee: Crown Forest Industries Limited
    Inventors: Joseph W. Arena, Karle B. Gilson, David T. Malcolm, John A. R. Mellander