Patent ID: 6442955
Filing Date: 2002-09-03
Classification: F24F,F25D,G01F,H01H

Abstract:
An air-cooling system comprising:means for cooling air; at least one of a first circuit connected to means for controlling supply of power to said means for cooling air or a second circuit connected to an alarm circuit; air handling means for cooling warm air, said air handling means having heat exchanger coils for containing a cold material for cooling the warm air; a drain pan for receiving condensate liquid formed on said exchanger coils, said drain pan having at least one outlet; and tube means fluidwise connected to said at least one outlet for conveying liquid away from said drain pan, said tube means including: a safety switch device having a tubular structure, said tubular structure having a plurality of open ends, a first open end of said plurality of open ends being fluidwise connected to one of said at least one outlet, and an overflow switch assembly mounted within a second open end of said plurality of open ends, said overflow switch assembly including: a magnetically driven reed switch, said reed switch having sealed contacts, each of said contacts being electrically connected by at least one electrical connection to one of said first circuit and said second circuit; a mounting cap for mounting said reed switch within said second open end, said mounting cap having an outer face, and inner face, and an aperture therebetween; a hollow tube having a closed end portion, an open end portion, and an outer surface extending therebetween, said hollow tube being disposed through said aperture, a stop means affixed to said closed end portion, and sealing means for sealingly closing said open end portion with said reed switch therein and said electrical connections extending through said sealing means; and attachment means for adjustably attaching said open end portion adjacent to said outer face.