Patents Assigned to Frick Comany
  • Icemaker liquid refrigerant defrost system
    Patent number: 4185467
    Abstract: A vertical shell and tube icemaker wherein the refrigerant surrounds tubes within which ice is made, and the freezing refrigerant outlet is positioned below the defrost refrigerant outlet to expedite release of ice during defrosting, the system employing liquid refrigerant obtained by continuous flow from the receiver for defrosting. Water is supplied around the upper ends of the tubes for maintaining a vertical stream flow which is distributed around the inner circumference of each tube.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: January 29, 1980
    Assignee: Frick Comany
    Inventor: Milton W. Garland