Leak detection in heating, ventilating, refrigeration, and air conditioning systems utilizing adsorptive materials
AssigneeBright Solutions, Inc.
InventorRichard C Cavestri
Life of this patent
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Abstract
A leak detecting dye for use in heating, ventilating, air conditioning, or refrigeration systems employing dyes, such as naphthalimide, perylene, coumarin, anthracene, phenanthracene, and thioxanthane. The dye is adsorbed onto a non-absorbent carrier which is then adapted for inclusion into various components of the system such as a filter drier, or a desiccant container which may be inserted into appropriate locations within the system.
Claims31
A method of detecting leaks in a heating, ventilating, air conditioning, or refrigeration system comprising:
- disassembling the system;
- introducing a dye formulation including a leak detecting dye into a component of the system, the dye formulation being heated and applied to a non-absorbent carrier;
- reassembling the system with the component containing the leak detecting dye operating said system to allow said dye formulation to circulate within the system;
- and
- examining the system with a light source having a light emission wavelength from 300 nanometers to 750 nanometers directed at said system and determining the presence of a leak by a colored visual indication detectable under the light from said light source.
A method of introducing a leak detecting dye into an assembled heating, ventilating, air conditioning, or refrigeration system comprising:
- disassembling the system;
- introducing a dye formulation including the leak detecting dye into a component of said system, the dye formulation being heated and applied to a non-absorbent carrier;
- and
- reassembling the system with the component containing the leak detecting dye.
Dependencies are inferred from the claim text.