Measuring and testing – With fluid pressure – Leakage
Patent
1994-09-27
1995-06-06
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
252963, 252962, 250301, G01N 3700
Patent
active
054211921
ABSTRACT:
The present invention relates to the effective leak detection of refrigerants by the addition of dyes from the general chemical class of naphthalimide fluorescent dyes in a refrigeration system where said refrigeration system employs alone, or in combination, a refrigerant in a hermetic system such as, but not limited to, chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFC), hydrofluorocarbons (HFC) and any hydrogen, halogenated or ether derivatives of the methane, hydrogen, halogenated, ether or cyclic derivatives of either ethane, propane, butane, pentane, mixtures of HCFC, HFC, hydrocarbons, carbon dioxide and ammonia.
Leakage is determined by inspection of the sealed system using a lamp having an emission wavelength from 300 to 480 nanometers providing an indication of any system leakage.
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patent: 5279967 (1994-01-01), Bode
patent: 5357782 (1994-10-01), Henry
Black Robert J.
Bright Solutions Inc.
Wiggins J. David
Williams Hezron E.
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