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PATENT APPLICATION PUBLICATION
INDIA
Date of filing of Application: 27/06/2001
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Application No.: 716/DEL/2001
Publication Date:09/06/2006
(54) Title of the Invention: “Food Freezing Method Using a Multicomponent Refrigerant”
(51) International Classification : F25B 49/02
(31) Priority Document No. : 09/605,472
(32) Priority Date : 28/06/2000
(33) Name of priority country : USA
(86) International application No. : NA
Filing Date : NA
(87) International Publication No. : NA
(61) Patent of Addition to
Application No.
:
N.A.
(62) Divisional to Application No. : NIL
Filed On : N.A.
Total No. of pages : 29+04=33
(71) Name of Applicant :
PRAXAIR TECHNOLOGY, INC.
Address of the Applicant: 39 Old Ridgebury
Road, Danbury, State of Connecticut 06810-
5113, United States of America.
(72) Name of the Inventor:
Richard A. Novak
Gary D. Lang
Arun Acharya
John Henri Royal
Kenneth Kai Wong
Bayram Arman
(57) Abstract: A method for providing refrigeration, such as to an insulated enclosure for food freezing, wherein a
defined hydrocarbon-containing multicomponent refrigerant fluid undergoes a phase change coupled with Jould-
Thomson expansion to generate refrigeration over a wide temperature range which may comprise from ambient to
low temperatures.
The Patent Office Journal 09/06/2006 11096
A