Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Reexamination Certificate
2005-04-05
2005-04-05
Einsmann, Margaret (Department: 1751)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
C062S114000, C252S068000
Reexamination Certificate
active
06875370
ABSTRACT:
A group of known refrigerants, (R-227ea, R-124, R-134a, R-143a, R-125, R-E125, R-E143a, R-E227ca2, R-254cb, R-600a, R-142b, R-22, R-290, R-E170, R-1270, R-1216, R-218, R-C318, R-C270), that may be combined in novel ways to produce several excellent “drop-in” substitutes for refrigerants R-12 or R-500. The performance of the preferred “drop-in” substitutes for R-12 or R-500 of the present invention often exceeds that of the refrigerant being replaced, while maintaining acceptable oil circulation with existing mineral oils used in R-12 or R-500 refrigeration and air conditioning systems.
REFERENCES:
patent: 4303536 (1981-12-01), Orfeo et al.
patent: 4482465 (1984-11-01), Gray
patent: 4810403 (1989-03-01), Bivens et al.
patent: 4954289 (1990-09-01), Bartlett et al.
patent: 5061394 (1991-10-01), Bivens et al.
patent: 5151207 (1992-09-01), Goble
patent: 5188749 (1993-02-01), Crooker
patent: 5214929 (1993-06-01), Goble
patent: 5277834 (1994-01-01), Bivens et al.
patent: 5417871 (1995-05-01), Minor et al.
patent: 5425890 (1995-06-01), Yudin et al.
patent: 6274062 (2001-08-01), Tieken
patent: 0105831 (1984-04-01), None
patent: 619356 (1994-10-01), None
patent: 2228739 (1990-09-01), None
patent: 3-276052 (1991-12-01), None
patent: 5239248 (1993-09-01), None
patent: WO 9400529 (1994-01-01), None
Chemical Abs. 117:144968, “Pentahaloethane-Based Chlorofluorocarbon Substitutes and Haloethane”, Harris et al, 1992.*
Chemical Abs. 124: 235660, “Conversion of industrial turborefrigerating machines to non-ozone depleting refrigerants”, Galeev et al, 1995.*
Chemical Abs. 123: 116088, “Alternatives of chlorofluorocarbons (CFCs)”, Rao, 1994.*
Damasceno, Guido de Souza, Dubrouillet, James N., Goldschmidt, Victor W., Robin, Mark, Tree, David R., Testing Refrigerant Alternatives in a Household Refrigerator, Proceedings of the 45th Annual International Appliance Technical Conference (University of Wisconsin, Madison, WI, May 9-11, 1994), IATC, Batavia, IL, pp. 505-516, May 1994 (12 pages with 6 figures and 2 tables, RDB4A29).
Basile et al., Chemical Abstracts, vol. 122, No. 164680, “Quasi-azeotropic mixtures utilizable as refrigerating fluids,” EP638623, Feb. 15, 1995, Abstract.
Browning Clifford W.
Einsmann Margaret
Woodard Emhardt Moriarty McNett & Henry LLP
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