Nonflammable, nonozone depleting, refrigerant mixtures...

Details Nonflammable, nonozone depleting, refrigerant mixtures... Nonflammable, nonozone depleting, refrigerant mixtures...

2005-03-08

2005-03-08

Hardee, John R. (Department: 1751)

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

Reexamination Certificate

active

06863840

ABSTRACT:
The present invention relates to refrigerants generally, and more specifically to nonflammable, nonozone depleting, mixtures of refrigerants that may be substituted for HCFC-22, R-407C, R-417A, R-502, R-500, CFC-12, R-404A, HFC-134a, and others, and is usable in mineral oil systems. Among the most preferred embodiments of the present invention are mixtures that are substitutes for these refrigerants, comprising about 1 to 85 weight percent R-125, and about 1 to 80 weight percent R-134a, and about 0 to 12 weight percent of R-1270, R-290 or a mixture thereof, and about 1 to 15 weight percent R-E170 and about 0 to 20 weight percent R-227ea, with the weight percentages of the components being weight percentages of the overall mixture.

REFERENCES:
patent: 5234613 (1993-08-01), Shiflett
patent: 5736063 (1998-04-01), Richard et al.
patent: 5800730 (1998-09-01), Bivens et al.
patent: 5954995 (1999-09-01), Goble
patent: 6231782 (2001-05-01), Shimomura et al.
patent: 6428720 (2002-08-01), Roberts
patent: 6555086 (2003-04-01), Ewing et al.
patent: 20020040975 (2002-04-01), Goble
patent: 20020050583 (2002-05-01), Caron et al.
patent: 2327427 (1999-01-01), None
patent: WO 9711138 (1997-03-01), None
patent: WO 0123493 (2001-04-01), None

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