Stoves and furnaces – Liquid heater – Open-top vessel that may include lid
Patent
1993-08-09
1995-05-30
Jones, Larry
Stoves and furnaces
Liquid heater
Open-top vessel that may include lid
126344, 126351, 126350D, 4603, A47J 2700
Patent
active
054193087
ABSTRACT:
a gas-using water heater having a water pressure-controlled gas general switch, wherein the water pressure-controlled gas general switch is disposed outside the water heater and is combined with the original manually operated gas general switch to form a dual general switch and with respect to a site provided with low water pressure, the water heater is additionally equipped with a pressurizing motor pump, fuses being disposed inside and outside the water heater, whereby when consuming the hot water, the movement of the water flow can activate an electric controlling system and a water guiding tube, making the water pressure-controlled gas general switch automatically cooperatively turn on/off the gas or turn on/off the pressurizing motor pump, and when the fuses burn down, the power is shut off, making the gas general switch automatically turn off the gas, so that the leak of gas can hardly take place and the user provided with low water pressure can obtain greater water pressure and in case of a fire, the gas can be turned off in time.
REFERENCES:
patent: 4508261 (1985-04-01), Blank
patent: 5143050 (1992-09-01), Spivey
patent: 5205318 (1993-04-01), Massaro et al.
patent: 5206963 (1993-05-01), Wiens
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