Multi-controlled water conservation system for hot water lines w

Details Multi-controlled water conservation system for hot water lines w Multi-controlled water conservation system for hot water lines w

1985-12-17

1986-08-19

Green, Randall L.

Stoves and furnaces

Liquid heater

Boiler receiving hot liquid or steam from stove or furnace

237 8A, 417 32, 219296, F24H 100

Patent

active

046063250

ABSTRACT:
A water conservation system for use in residential dwellings or other buildings having a hot water distribution system. The system conserves water which is typically wasted by users while waiting for warm water to flow from a hot water faucet. The system provides a recirculating cooled hot water supply line from the cooled-off end of a hot water line back to the hot water heater of the hot water distribution system. The system is provided with a plurality of control means to electrically energize the system's recirculating pump so long as a pressure switch detects that the main water supply is providing sufficient water pressure to the system. In operation the recirculating pump opens a check valve in the recirculating line and closes the check valve in the main water supply line and recirculates the cooled hot water back to the hot water heater for ultimate use. If the main water supply has insufficient pressure, the recirculating cooled hot water system is non-functional.

REFERENCES:
patent: 2291023 (1942-07-01), Burklin
patent: 2399985 (1946-05-01), Chandler
patent: 2842155 (1958-07-01), Peters
patent: 2915080 (1959-12-01), Holmes
patent: 3705574 (1972-12-01), Duncan
patent: 4141222 (1979-02-01), Ritchie
patent: 4142515 (1979-03-01), Skaats
patent: 4201518 (1980-05-01), Stevenson
patent: 4321943 (1982-03-01), Haws
patent: 4450829 (1984-05-01), Morita et al.

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