Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Reexamination Certificate
2007-06-12
2007-06-12
Hardee, John R. (Department: 1751)
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
With lubricants, or warning, stabilizing or anti-corrosion...
C252S067000
Reexamination Certificate
active
10936717
ABSTRACT:
Refrigerant compositions are disclosed which comprise:(a) pentafluoroethane, octafluoropropane, trifluoromethoxydifluoromethane or hexafluoro-cyclopropane, or a mixture of two or more thereof, in an amount of at least about 35% based on the weight of the composition,(b) 1,1,1,2- or 1,1,2,2-tetrafluoroethane, 1,1-difluoroethane, trifluoromethoxypentafluoroethane, 1,1,1,2,3,3-heptafluoropropane or a mixture of two or more thereof, in an amount of at least about 30% by weight based on the weight of the composition and(c) n-butane, in an amount from about 2.3 to about 4% by weight based on the weight of the composition.
REFERENCES:
patent: 4755316 (1988-07-01), Magid et al.
patent: 5032306 (1991-07-01), Cripps
patent: 5520833 (1996-05-01), Kaneko
patent: 5688432 (1997-11-01), Pearson
patent: 5954995 (1999-09-01), Goble
patent: 6065305 (2000-05-01), Arman et al.
patent: 6076372 (2000-06-01), Acharya et al.
patent: 6230519 (2001-05-01), Arman et al.
patent: 6363741 (2002-04-01), Takemasa
patent: 6428720 (2002-08-01), Roberts
patent: 6511610 (2003-01-01), Caron et al.
patent: 6526764 (2003-03-01), Singh et al.
patent: 6606868 (2003-08-01), Powell et al.
patent: 6629419 (2003-10-01), Powell et al.
patent: 6655160 (2003-12-01), Roberts
patent: 6695973 (2004-02-01), Musso et al.
patent: 6783691 (2004-08-01), Bivens et al.
patent: 2002/0050583 (2002-05-01), Caron et al.
patent: 1183451 (1998-06-01), None
patent: 1280166 (2001-01-01), None
patent: 0 399 817 (1990-11-01), None
patent: 0 565 265 (1993-03-01), None
patent: 0 427 604 (1993-04-01), None
patent: 0 539 952 (1993-05-01), None
patent: 0 659 862 (1995-06-01), None
patent: 0 565 265 (1995-12-01), None
patent: 0 779 352 (1997-06-01), None
patent: 0779352 (1997-06-01), None
patent: 1 184 438 (2002-03-01), None
patent: 1 193 305 (2002-04-01), None
patent: 0 856 571 (2003-04-01), None
patent: 2 247 462 (1992-04-01), None
patent: 2 247 462 (1992-04-01), None
patent: 2 250 514 (1992-06-01), None
patent: 2 291 884 (1996-07-01), None
patent: 2 291 884 (1996-07-01), None
patent: 2 327 427 (1999-01-01), None
patent: 9923088.0 (1999-09-01), None
patent: 0005043.5 (2000-03-01), None
patent: 0010171.7 (2000-04-01), None
patent: 2 356 867 (2001-06-01), None
patent: 4-18484 (1992-01-01), None
patent: 2576161 (1997-01-01), None
patent: 2576162 (1997-01-01), None
patent: 2584337 (1997-02-01), None
patent: 1997059611 (1997-03-01), None
patent: 01108291 (1997-10-01), None
patent: 3127138 (2001-01-01), None
patent: 2002 228307 (2002-08-01), None
patent: 3754198 (2005-12-01), None
patent: 1997-022058 (1997-05-01), None
patent: 2 072 382 (1997-01-01), None
patent: 2 135 541 (1999-08-01), None
patent: 2 161 637 (2001-10-01), None
patent: WO 93/01152 (1993-01-01), None
patent: WO 93/15163 (1993-08-01), None
patent: WO 94/00529 (1994-01-01), None
patent: 95 08602 (1995-03-01), None
patent: WO 95/08602 (1995-03-01), None
patent: WO 96/03473 (1996-02-01), None
patent: 96 15205 (1996-05-01), None
patent: WO 96/15205 (1996-05-01), None
patent: WO 97/34961 (1997-09-01), None
patent: WO 00/56834 (2000-09-01), None
patent: WO 01/23491 (2001-04-01), None
patent: WO 01/23492 (2001-04-01), None
patent: WO 01/23493 (2001-04-01), None
patent: WO 02/24829 (2002-03-01), None
patent: WO 02/26912 (2002-04-01), None
patent: WO 02/26913 (2002-04-01), None
JP 01 139675 (English Translation of the Abstract).
Roberts NA, “Determination of the performance, leak scenario, flammability and oil return characterictics of novel R22 replacement”, Proceedings of the Seventh International Refrigeration Conference at Purdue University, West Lafayette, Indiana (1998).
Musso E et al., “Miscele temarie a base di HFC contenenti idrocarburi come sostitui “drop in” di R12 nella refrigerazione domestica”, Conference on Conditioning, Heating, Refrigeration: Innovations and Trends, Milan, Italy (Jun. 1997).
Sanders PA., “Table 14-2 Flammability Limits of Various Propellants in Air”, Handbook of Aerosol Technology, Second Edition, Malabar, Florida, pp. 233, 250 (1987).
Roberts NA et al, “High Efficiency R22 Replacement”, Conference at Purdue University (1996).
Butler D., “R22 drop-in a success at BRE”, Refrigeration and Air Conditioning, pp. 49-50 (1994).
Pearson SF, “Uses of hydrocarbon refrigerants”, I.I.F.-I.I.R. Commissions B1, B2, E1 and E2, pp. 439-446 (1996).
E-mail reply from Herrick Conference to Felix Flohr dated May 27, 2003.
Internet citation, “Conference Organizing Committee”, http://www.ecn.purdue,edu/Herrick/Events/organize-frame.htm.
Internet citation, “Registration Information”, http://www.ecn.purdue.edu/Herrick/Events/Registration.htm.
ASHRAE Standard 34-2001, “Contents”, pp. 7 and 13.
Swom Statement by Christoph Meurer.
Birett K, “Information sheets on hazardous substances” (1996).
Soffientini et al., “Evaluation of alternative refrigerants when retrofitting R-22 refrigeration systems”, Centro Studio Galileo—Industria & Formazione Eleventh European Conference, Milan, Italy (2005).
Wilson, DP, Richard RG; “Determination of Refrigerant Lower Flammability Limits in Compliance with Proposed Addendum p to Standard 34”; ASHRAE Transactions 2002, v. 108; pp. 1-17; Jun. 23, 2002.
Roberts, NA, Pearson, SF; “High Efficiency R22 Replacement (ISCEON 59, a mixture of R125, R134a and isobutane)”; Congress Symposium Meeting-Colloque, 1996 Int. Compressor Eng. Conf., Purdue, Jul. 23, 1996.
Roberts, NA; “Energy Saving Refrigerant Blends Comprising R125, R123a, R600 or R600a”; European Conference (Milan); pp. 108; Jun. 17-18, 2005.
“Final Draft International Standard-Project Final de Norme Internationale”, International Electrotechnical Commission, IEC; Dec. 17, 2004.
Chart: Vapor Composition Flammability Data (data published Mar. 2006 in EPO app.0.
English Abstract: JP 01108291 ( Record provided in IDS 1987).
English Abstract: RU 2161637 (Jan. 10, 2001).
Butler D., “R22 drip-in a success at BRE”, Refrigeration and Air Conditioning, pp. 49-50 (1994).
Fluorocarbon azeotropes Research Disclosure 16265 (1977).
JP 01 139678 (English Translation of the Abstract) (1989).
Pearson SF, “Uses of hydrocarbon refrigerants”, I.I.F.-I.I.R. Commissions B1, B2, E1 and E2, pp. 439-446 (1996).
Sworn Statement by Christoph Meurer (Sep. 7, 2003).
Birett K, Information sheets on hazardous substances (1996).
Soffientini et al., “Evaluation of alternative refrigerants when retrofitting R-22 refrigeration systems”, Centro Studio Galileo—Industria & Formazione Eleventh European Conference, Milan, Italy (2005).
JP 01 139675 (English Translation of the Abstract) (pub. prior to 2002).
Roberts NA, “Determination of the performance, leak scenario, flammability and oil return characteristics of novel R22 replacement”, Proceedings of the Seventh International Refrigeration Conference at Purdue University, West Lafayette, Indiana (1998).
Musso E et al., “Miscele ternarie a base di HFC contenenti idrocarburi come sostituti “drop in” di R12 nella refrigerazione domestica”, Conference on Conditioning, Heating, Refrigeration: Innovations and Trends, Milan, Italy (1997).
Sanders PA, “Table 14-2 Flammability Limits of Various Propellants in Air”, Handbook of Aerosol Technology, Second Edition, Malabar, Florida, pp. 233, 250 (1987).
Capria Mary Ann
E.I. duPont de Nemours and Company
Hardee John R.
Sebree Chyrrea J.
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