Electric heating – Heating devices – Combined with diverse-type art device
Patent
1983-10-31
1985-01-15
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
219289, 219293, 219295, 338 81, 338 83, H05B 360, F22B 130
Patent
active
044939736
ABSTRACT:
An electrode type liquid heater includes a tank having an inlet and an outlet disposed so that in normal operation of the heater the tank is partially filled with electrically conductive liquid below an electrically nonconductive air space. A plurality of electrodes, at least one of which is carried by a movable heating assembly, are immersed in the liquid and a voltage is applied thereacross for heating the liquid. The movable heating assembly is urged by a counterweight to a normal position wherein the at least one electrode carried by the assembly located in the air space. The flow of water to be heated discharges from the inlet onto a surface on the heating assembly opposite the counterweight to move the at least one electrode to a position immersed in the liquid. Preferably the surface is shaped to form a cup which may capture a sufficient portion of the inlet liquid so that the weight of the captured liquid provides an immersing force to overcome the counterweight and move the at least one electrode to an immersed position. The cup is provided with a drain so that it may be emptied when the discharge of inlet liquid into the heater ceases. Additionally, the immersing force may be developed by the impact of moving inlet liquid discharged from the inlet onto the surface. In the absence of the immersing force after the cup has drained and the impact stopped, the counterweight rapidly returns the heating assembly to its normal position with the at least one electrode carried thereby completely removed from the tank liquid so that the heating stops.
REFERENCES:
patent: 2090282 (1937-08-01), Bock
patent: 3144546 (1964-08-01), Foley et al.
patent: 3809857 (1974-05-01), Muhl
patent: 4326120 (1982-05-01), Muhl
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