Water heater with heat trap in dip tube

Details Water heater with heat trap in dip tube Water heater with heat trap in dip tube

1989-05-09

1990-10-23

Jones, Larry

Stoves and furnaces

Liquid heater

Boiler receiving hot liquid or steam from stove or furnace

126362, 126350, 137433, 236 93R, F24H 100

Patent

active

049643940

ABSTRACT:
A hot water heater (12) has a modified dip tube (70) with a heat trap (80, 78, 82, 74) therein. The cold water inlet pipe (90) is threaded directly into a spud (26) on the tank without an extra fitting (32) otherwise required for a heat trap, the heat trap function being performed in the dip tube (70) and eliminating the cost of a separate external heat trap fitting otherwise required for such function. The travel stroke of the heat trap sealing ball (80) is located entirely within the storage tank (14) to reduce noise caused by movement of the ball (80).

REFERENCES:
patent: 1844613 (1932-02-01), Thompson
patent: 1863273 (1932-06-01), Hofferbert
patent: 1897492 (1933-02-01), Ledoux
patent: 2105893 (1938-01-01), Salmonsen
patent: 2223509 (1940-12-01), Brauer
patent: 2764427 (1956-09-01), Andrus
patent: 2971532 (1961-02-01), McLaren et al.
patent: 3144904 (1964-08-01), Kahn et al.
patent: 3190284 (1965-06-01), Koepf
patent: 3285241 (1966-11-01), Bordeaux
patent: 3319980 (1967-05-01), Demetriff et al.
patent: 3726475 (1973-04-01), Eising
patent: 3776456 (1973-12-01), Eising
patent: 3864234 (1975-02-01), Wasson
patent: 4286573 (1981-09-01), Nickel

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