Refrigeration – Automatic control – Refrigeration producer
Patent
1999-09-14
2000-12-12
Doerrler, William
Refrigeration
Automatic control
Refrigeration producer
137340, 165172, 165219, 236 245, 236 25R, 236 26R, 237 8A, F25D 1702
Patent
active
06158231&
ABSTRACT:
An energy control and transmission system which monitors temperature in piping systems, electronic systems and the like. Energy in the form of a heated or chilled fluid is delivered to the devices and/or regions of interest to maintain temperature conditions thereat within a safe range of values. Electrical energy employed in the system is confined to the location from which the fluid is pumped, eliminating the presence of electricity in hazardous or dangerous areas. Non-electrical temperature indicators are utilized to permit branching flow of the temperature controlling fluid from a closed loop responsive to detection of a temperature condition outside of the desired range of values. The opening of such a branching path triggers operation of a pressure sensitive switch which activates a pump for delivery of the temperature controlling fluid. The branching paths, in addition to being selectively coupled to the main delivery loop by independent temperature control valves, may also be controlled to achieve different, independent safe temperature ranges.
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Doerrler William
Norman Marc
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