The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1982
Filed:
Jul. 26, 1979
Applicant:
Inventor:
Lloyd C Grewar, Brassall, AU;
Assignee:
The Commonwealth Industrial Gases Limited, Surry Hills, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D / ;
U.S. Cl.
CPC ...
62 63 ; 62 64 ; 62332 ; 62374 ; 62380 ;
Abstract
A method of freezing animal carcasses comprises spraying the carcass with liquid nitrogen to produce a chilled outer layer thereby to seal the moisture within the carcass for the dual purpose of maintaining the quality of the meat and preventing the frosting or icing up of the heat exchange coils of a forced draught cooling system utilized subsequently to bring the entirety of the carcass to a desired chilled or frozen condition. Also disclosed is a freezing room including means for liberating a cryogenic liquid into the air stream from the fans of a forced draught cooling system for rapid pull-down of the room temperature.