Aquarium heater and cooler

Details Aquarium heater and cooler Aquarium heater and cooler

1992-12-21

1994-04-05

Sollecito, John M.

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

62 33, 119245, 119262, 119229, F25B 2102

Patent

active

052994244

ABSTRACT:
A combination aquarium heater and cooler apparatus is provided which utilizes a feedback circuit to automatically maintain the fluid in an ecosystem at an operator set desired temperature. The feedback system scheme takes advantage of a thermo-electric heat pump component in combination with a high gain amplifier in order to achieve the desired result of maintaining the ecosystem at a temperature which is nearly constant regardless of other undesirable spurious heat inputs or losses to the ecosystem.

REFERENCES:
patent: 3254494 (1966-06-01), Chartouni
patent: 4151810 (1979-05-01), Wiggins
patent: 4867102 (1989-09-01), Turano

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