Patents by Inventor David K. Y. AuYoung

David K. Y. AuYoung 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).

  • Modified wire mesh conveyor belt for air fluidization type food freezers
    Patent number: 4186566
    Abstract: Non-uniformity of air fluidization freezing of food particles on a wire mesh conveyor belt caused by variations in food particle layer thickness or in layer permeability over the working area of the belt is minimized by the presence of uniformly spaced airflow masking rods placed in the transversely extending core spaces of the belt helices. Of selected material, such as polyethylene, the rods serve also to strengthen and stiffen the belt and to minimize uneven wear in the mesh.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: February 5, 1980
    Assignee: Lewis Refrigeration Co.
    Inventor: David K. Y. AuYoung