Martin Matthews Reynolds
Engineers at 59 St, Scottsdale, AZ

5199279, Apr 6, 1993

Aug 13, 1991

7/744483

Martin M. Reynolds - Scottsdale AZ

A23G 918

62346

A drum contact freezer system which reduces or eliminates a stagnant layer of refrigerant on an interior surface of the drum freezers is provided. A boiling refrigerant is sprayed into the interior of the drum freezers to scrub an interior surface thereof having the stagnant layer. This scrubbing reduces or eliminates the stagnant layer and thus provides an enhanced rate of heat transfer. The boiling refrigerant is preferably in a temperature range of approximately -100. degree. F. to -40. degree. F. at or near atmospheric pressure. Additionally, the boiling refrigerant may be circulated within the drum freezers by providing troughs on the interior surface thereof to help lift the boiling refrigerant and prolong contact between the boiling refrigerant and the interior surface of the drum freezers to provide a further enhanced rate of heat transfer. The material to be frozen may be provided on an outer surface of the drum freezers using a drop nose feed conveyor, soft sponge rollers, or a sprayer assembly depending upon the type of material to be frozen.

5121611, Jun 16, 1992

Oct 25, 1990

7/603533

Walter C. Broderdorf - Wooster OH
Stephen F. Donohue - Hutchinson KS
Donald S. Finan - Chicago IL
Robert J. Ogarek - Chicago IL
Martin M. Reynolds - Scottsdale AZ
Gary D. Lang - Wooster OH

Liquid Carbonic Corporation - Chicago IL

F25D 1702

62374

Refrigeration apparatus for cooling or freezing products such as protein materials includes a drum through which heat transfer fluid is circulated. A belt is wrapped around part of the drum surface and the product to be refrigerated is applied to the drum surface, being pressed thereagainst by the belt. Either liquid or triple point carbon dioxide is circulated through the drum to cool the product in contact therewith. Other heat transfer fluids such as D-Limonene or DOWTHERM may also be circulated through the drum. A tank and related apparatus for cooling the heat transfer fluid is also disclosed.

5156006, Oct 20, 1992

Nov 20, 1991

7/795111

Walter C. Broderdorf - Wooster OH
Stephen F. Donohue - Hutchinson KS
Donald S. Finan - Chicago IL
Robert J. Ogarek - Chicago IL
Martin M. Reynolds - Scottsdale AZ
Gary D. Lang - Wooster OH

Liquid Carbonic Corporation - Chicago IL

F17C 1100

62 461

Refrigeration apparatus for cooling or freezing products such as protein materials includes a drum through which heat transfer fluid is circulated. A belt is wrapped around part of the drum surface and the product to be refrigerated is applied to the drum surface, being pressed thereagainst by the belt. Either liquid or triple point carbon dioxide is circulated through the drum to cool the product in contact therewith. Other heat transfer fluids such as D-Limonene or DOWTHERM may also be circulated through the drum. A tank and related apparatus for cooling the heat transfer fluid is also disclosed.

5421168, Jun 6, 1995

Mar 4, 1994

8/207019

Martin M. Reynolds - Scottsdale AZ

F25D 1306

62 63

A freezer system which partially freezes food products through conductive heat transfer with rotating contact freezers prior to complete freezing of the food products in an enclosed convection freezer. Food products sequentially contact outer surfaces of two rotating contact freezers, which partially freezes the food products to first and second predetermined depths. The partially frozen food products then enter an enclosed convection freezer for complete freezing. Partial freezing of the food products prior to a complete freeze of the food products provides for a greatly increased rate of production of high quality frozen food products.