Liquid Carbonic Corporation

Jose M Camacho

Gary Dee Lang

Martin M Reynolds

Donald S Finan

Walter C Broderdorf

Stephen F Donohue

Robert J Ogarek

Jim M Venetucci

Richard L Owen

Timothy M Lewis

The present invention is directed to a method for treatment of poultry prior to slaughter of the poultry. In the method, poultry are exposed to a first atmosphere having a carbon dioxide concentration sufficient to induce relaxation of the poultry for a period of time sufficient to effect the relaxation. The relaxed poultry are then immediately exposed to a second atmosphere having a carbon dioxide concentration sufficient to render the poultry unconscious. The poultry are subjected to the second atmosphere for a period of time sufficient to effect the unconsciousness, but not sufficient to kill the poultry by being exposed to the second carbon dioxide atmosphere. The poultry are then slaughtered prior to the poultry regaining consciousness.

Poultry stunning with carbon dioxide

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.

Apparatus for cooling a heat transfer fluid

Refrigeration apparatus and method of refrigeration

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Cicero, IL, United States of America

Jose M Camacho