Patents Represented by Attorney David A. Drawgert

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  • Immersion freezer
    Patent number: 5522237
    Abstract: A substantially U-shaped immersion freezer having an inlet and an outlet and an immersion zone filled with liquid refrigerant. Product to be frozen is passed into the freezer through the inlet and raised by at least one paddle member to the outlet. The resulting frozen product and some liquid refrigerant is then passed out of the outlet to a conveyor having holes provided therein which allow the liquid refrigerant to be drained from the frozen product for recycling back to the inlet side of the freezer.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: June 4, 1996
    Assignee: The BOC Group plc
    Inventor: David G. Wardle