Patents Assigned to Donald Paul Smith
  • Impingement thermal treatment apparatus with collector plate
    Patent number: 4750276
    Abstract: Impingement heating or cooling apparatus that employs an axial flow fan, a plenum, collector and a columnating assembly for directing jets of a temperature controlled gas against the surface of a food product. Means for contacting a first layer of food products with impinging jets of a temperature controlled gas and for simultaneously contacting a second layer of food products with an alternating, convective flow of a temperature controlled gas is also provided.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: June 14, 1988
    Assignee: Donald Paul Smith
    Inventors: Donald P. Smith, Virgil L. Archer, William W. Plumb, Jarald E. High, Robert W. Foreman