Patents by Inventor Allan R. Fry

Allan R. Fry 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).

  • Resonant cavity of a microwave drier
    Patent number: 4908486
    Abstract: A microwave cavity (1) for drying/heating having at least one microwave source (6) emitting microwave energy of wavelength W into the cavity (b 1). By design of the size, shape and dimensions of the cavity (1) and the placement of the microwave source/s (6), the number of resonance modes is maximized in a processing zone (8) in the cavity (1), and the number of resonance modes and reflected energy is minimum at the microwave source/s (6).
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: March 13, 1990
    Assignee: Nearctic Research Centre
    Inventor: Allan R. Fry