Compositions – Vaporization – or expansion – refrigeration or heat or energy... – With lubricants – or warning – stabilizing or anti-corrosion...
Patent
1997-05-27
1998-05-12
Diamond, Alan
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
With lubricants, or warning, stabilizing or anti-corrosion...
62 77, 62 84, 508463, 508431, 508459, 508501, 508503, 508510, 508516, 508517, 508505, 508109, 508371, 508364, 508405, 508413, C09K 504
Patent
active
057500460
ABSTRACT:
A method of maintaining and servicing air conditioning systems and compositions therefor are provided whereby newer, more environmentally friendly R-134a refrigerant gas is substituted for the older R-12 and R-22 types. In addition, a method of flushing and internal lubrication of the system is presented, along with a new flush solvent and a new lubricant composition for use with an R-134a refrigerant gas.
REFERENCES:
patent: 4242095 (1980-12-01), Carver
patent: 4725317 (1988-02-01), Wheeler
patent: 4769178 (1988-09-01), Kenmochi et al.
patent: 4954363 (1990-09-01), Staker et al.
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