Water heater with removable impurities collector and backflow pr

Details Water heater with removable impurities collector and backflow pr Water heater with removable impurities collector and backflow pr

1989-12-18

1992-04-28

Reynolds, Bruce A.

Electric resistance heating devices

Heating devices

Tank or container type liquid heater

392477, 392478, 392480, 392465, F24H 100

Patent

active

051094720

ABSTRACT:
A water heater (10) overcomes the disadvantage of complicated structure in the prior art and can effectively prevent water in the tank from flowing back into main supply outside the tank, remove impurities in hot water to improve water quality, assure effective and safe operation of the water heater and prolong its service life through the use of a simple ventilating member (20) having small holes (26) preventing water from flowing back, a guiding pipe (24) which makes water swirl, a downwardly projecting periphery (14) of the bottom of the tank, a sand collector (16) and a manually operated sand removing valve (18).

REFERENCES:
patent: 758188 (1904-04-01), Miller
patent: 4480173 (1984-10-01), Butterfield
patent: 4825043 (1989-04-01), Knauss

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