Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Reexamination Certificate
2007-08-21
2007-08-21
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
10632817
ABSTRACT:
Refrigerant compositions are provided which include:(a) pentafluoroethane or trifluoromethoxydifluoromethane or hexafluorocyclopropane or mixtures thereof, in an amount from about 60 to about 70% by weight based on the weight of the composition;(b) 1,1,1,2- or 1,1,2,2-tetrafluoroethane or trifluoromethoxypentafluoroethane or 1,1,1,2,3,3-heptafluoropropane or mixtures thereof, in an amount from about 26 to 36% by weight based on the weight of the composition; and(c) an ethylenically unsaturated or saturated hydrocarbon, optionally containing one or more oxygen atoms, having a boiling point from −12° C. to +10° C., or a mixture thereof, or a mixture of one or more of the hydrocarbons with one or more other hydrocarbons or ethers, said mixture having a bubble point from −12° C. to +10° C., in an amount from about 1% to 4% by weight based on the weight of the composition. Also provided is a process of refrigeration using the refrigerant compositions and a refrigeration apparatus containing the refrigerant compositions.
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: 0 430 131 (1991-05-01), 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: 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: 2 327 427 (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: 2002-226307 (2002-08-01), 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: WO93/01152 (1993-01-01), None
patent: WO93/15163 (1993-08-01), None
patent: WO94/00529 (1994-01-01), None
patent: 95 08602 (1995-03-01), None
patent: WO96/03473 (1996-02-01), None
patent: 96 15205 (1996-05-01), None
patent: WO97 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
Database WPI, Section Ch, Week 8928, Derwent Publications Ltd., London, GB; An 89-202050, XP002078229 & JP 01 139675 A (Ashahi Glass Co., LTD.), (see Abstract) Jun. 1, 1989.
Roberts, “Determination of the Performance, Leak Scenario, Flammability and Oil Return Characteristics of a Novel R22 Replacement,” Jul. 13, 1998.
Fluorocarbon azeotropes, Research Disclosure 16265 (1977).
JP 01 139678 (English Translation of the Abstract).
Pearson SF, “Uses of hydrocarbon refrigerants”, I.I.F.-I.I.R. Commissions B1, B2, E1 and E2, pp. 439-46 (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.
Sworn Statement by Christoph Meurer.
Birett K, “Information sheets on hazardous substances” (1998).
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).
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 sostituti “drop in” di R12 nella refrigerazione domestica”, Conference on Conditioning, Heating, Refrigeration: Innovations and Trends, Milan, Italy (1997).
Wilson, DP, Richard, RG; “Determination of Refrigerant Lower Flammability Limits in Compliance with Proposed Addendum p to Standard 34”; ASHRAE Transactions 2002, vol. 108; pp. 1-17; Jun. 23, 2002.
Roberts, Na, Pearson, Sf; “High Efficiency R22 Replacement (ISCEON 59, a mixture of R125, R134a and isobulane)”; Congress Symposium Meeting-Colloque, 1996 Int. Compressor Eng. Conf., Purdue, Jul. 23, 1996.
Roberts, NA; “Energy Saving Refrigerant Blends Comprising R125, R134a, R600 or R600a”; European Conference (Milan); p. 108; Jun. 17-18, 2005.
“Final Draft International Standard-Projet Final de Norme Internationale”; International Electrotechnical Commission, IEC; Dec. 17, 2004.
Sanders Pa., “Table 14-2 Flammability Limits of Various Propellants in Air”, Handbook of Aerosol Technology Second Edition, Malabar, Florida, pp. 233, 250 (1987).
Chart: Vapor Composition Flammability Data Mar. 2006.
English Abstract: JP 01108291 Oct. 1997.
English Abstract: RU 2161637 Oct. 2001.
R417A—M6DS Sheet (Product available circa 2001).
Chambers Owen R.
Roberts Neil A.
Capria Mary Ann
E.I. du Pont de Nemours and Company
Hardee John R.
Sebree Chyrrea J.
LandOfFree
Refrigerant composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refrigerant composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refrigerant composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3841452