Patents by Inventor Peter Y. Pao

Peter Y. Pao 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).

  • Fluidized freezing
    Patent number: 4281521
    Abstract: Articles of food to be frozen are delivered to an article conditioning conveyor and are maintained in a fluidized state by refrigerated air flowing upwardly therethrough. The conveyor is driven forwardly but is interrupted by at least one downward stepping movement, causing a thinning of the product bed and a rapid increase in air velocity to thus cool and separate the food articles preventing them from freezing to one another. The food articles are thereafter subjected to deep bed mass fluidization by flowing freezing air therethrough in a fluidized state.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: August 4, 1981
    Assignee: Refrigeration Engineering Corporation
    Inventors: Walter H. Martin, George C. Briley, Peter Y. Pao