Hydrothermal stabilizer and expansion tank system

Details Hydrothermal stabilizer and expansion tank system Hydrothermal stabilizer and expansion tank system

1995-06-05

1996-12-17

Chambers, A. Michael

Fluid handling

With heating or cooling of the system

Hot and cold water system having a connection from the hot...

126362, F16K 4900

Patent

active

055843166

ABSTRACT:
Plumbing apparatus is provided for reducing energy consumption and controlling increases in water pressure of a hot water heater. The apparatus includes a tank and a buoyant piston movably disposed within the tank and having a perimeter slidably engaging an inside wall of the tank. Water entering a top of the tank pushes the buoyant piston towards a bottom of the tank and at a selected position, grooves are provide in an inside wall of the tank to enable entering water to pass the buoyant piston. When the apparatus is connected between a conventional hot water heater and a cold water source, the water heater is buffered from the cold water source for small draws of water from the hot water heater thus preventing such small draws of water from tripping the water heater thermostat. The buoyant piston is designed to enable expansion of tank capacity such that upon increases in water volume due to thermal expansion, pressure within the tank is controlled and rupture of the tank is prevented.

REFERENCES:
patent: 2823695 (1958-02-01), Coffin
patent: 3754563 (1973-08-01), Boals
patent: 4518007 (1985-05-01), Haws
patent: 4930551 (1990-06-01), Haws
patent: 4945942 (1990-08-01), Lund
patent: 5042524 (1991-08-01), Lund

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