Storage water heater

Details Storage water heater Storage water heater

2007-04-10

2010-10-12

Wilson, Gregory A (Department: 3749)

Liquid heaters and vaporizers

Indirectly heated separate injected fluid

C122S02000R, C237S019000

Reexamination Certificate

active

07810456

ABSTRACT:
To provide a storage water heater capable of increasing thermal efficiency and quickly boiling when tap water is supplied into a hot-water tank. A storage water heater can heat low-temperature water having a high density because hot water in a hot-water tank is led from a lead-in pipe positioned at the bottom of the hot-water tank to a gas heater. Also, a water supply pipe outlet and a lead-in pipe inlet are provided so as to be opposed to each other on the same axis. Therefore, when tap water is supplied from a water supply pipe, the tap water lower in temperature than the hot water in the hot-water tank is preferentially led to the gas heater. With this, hot water at the lowest temperature in the hot-water tank can be selectively heated, thereby increasing thermal efficiency.

REFERENCES:
patent: 2190382 (1940-02-01), Moore
patent: 2201406 (1940-05-01), Miller
patent: 2878804 (1959-03-01), Gaffney
patent: 4492091 (1985-01-01), Whitwell et al.
patent: 4699091 (1987-10-01), Waters
patent: 5006689 (1991-04-01), Kurachi et al.
patent: 5020721 (1991-06-01), Horne
patent: 5203500 (1993-04-01), Horne, Sr.
patent: 5317670 (1994-05-01), Elia
patent: 6283067 (2001-09-01), Akkala
patent: 07-180909 (1995-07-01), None
patent: 2001-304691 (2001-10-01), None

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