Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1976-06-15
1978-08-29
Myhre, Charles J.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
165DIG12, 165 59, 165 97, 165105, F25B 2900
Patent
active
041097050
ABSTRACT:
Recuperative heat exchangers are disposed in the supply and exhaust ducts of a ventilating system. To reduce frost build-up at the exit end of the exhaust-duct heat exchanger, the heat exchanger is disposed so that the exhaust air flows through it alternately from one end to the other, and vice-versa, when the temperature is below freezing. The reversal of flow of the exhaust air is accompanied by a reversal of the flow of heat exchange medium so that the efficiency of heat exchange is not adversely affected. Several systems of heat exchange are disclosed.
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patent: 3565164 (1971-02-01), Kline
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LaTulip Margaret A.
Myhre Charles J.
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