Stoves and furnaces – Heaters – Surface
Patent
1976-08-30
1978-01-31
Sprague, Kenneth W.
Stoves and furnaces
Heaters
Surface
237 1A, F24J 302
Patent
active
040710181
ABSTRACT:
A solar heat collector system having a fluid storage unit that is interconnected to the inlet of a solar heat collector by a pump and is also interconnected to the outlet of the collector by a return. A temperature sensor is operatively interconnected to the pump to turn on the pump when the sensor senses a temperature of a first certain magnitude above the temperature of the fluid in the storage unit and to turn off the pump when the sensor senses a temperature below a second certain magnitude above the temperature of the fluid in the storage unit. An aspirator unit is provided for directing fluid from the return to adjacent the senor to change the temperature thereof.
REFERENCES:
patent: 3382917 (1968-05-01), Rice
patent: 3906928 (1975-09-01), Wright
patent: 3986489 (1976-10-01), Schlesinger
Robertshaw Controls Company
Sprague Kenneth W.
Yeung James C.
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