Anti-freeze assist apparatus

Details Anti-freeze assist apparatus Anti-freeze assist apparatus

1991-11-22

1993-08-31

Tapolcai, William E.

Heating systems

Antifreezing devices

137 59, 417 12, E03B 712

Patent

active

052401790

ABSTRACT:
A method and an apparatus to aid in the prevention of pipe freezing. This method utilizes fluid in motion to help pipes resist freezing. When initiated by the control circuit, fluid flows through the pipes to prevent freezing. The control system utilizes either a fixed duty cycle, a variable duty cycle, a duty cycle which can be selected or a temperature sensor. Other apparatus of this sort use the heat produced by electrical current to heat a pipe to prevent freezing. The method and apparatus described here utilizes fluid in motion to accomplish a similar task. This method is particularly suited for hot water circulating types of systems.

REFERENCES:
patent: 4457326 (1984-07-01), Donnelly
patent: 4672990 (1987-06-01), Robillard
patent: 4750472 (1988-06-01), Fazekas

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