Heat exchange – Casing or tank enclosed conduit assembly
Patent
1993-08-05
1995-07-04
Lazarus, Ira S.
Heat exchange
Casing or tank enclosed conduit assembly
122 131, 126374, F28D 700
Patent
active
054291860
ABSTRACT:
An open hot-water heater includes a water tank; a hot-water overflow extending from the water tank; a faucet connected to the hot-water overflow; and a cold-water supply arrangement for introducing cold water into the water tank to refill the water tank and to drive hot water therefrom through the hot-water overflow. The cold-water supply arrangement includes a cold-water inlet coupled to the water tank and a cold-water discharge pipe connected to the cold-water inlet and having an outlet opening situated in the tank for introducing cold water into the tank. There is further provided a tank volume varying device and a valve assembly exposed to cold-water pressure prevailing in the cold-water inlet. The cold-water discharge pipe couples the valve assembly to the tank volume varying device for displacing the tank volume varying device by the valve assembly for reducing the tank volume when the valve assembly is moved in response to the cold-water pressure and for displacing the tank volume varying device by the valve assembly for increasing the tank volume when the valve assembly is no longer exposed to the cold-water pressure, whereby a water-free space is obtained above a water level in the tank.
REFERENCES:
patent: 3435283 (1969-03-01), Beurtheret
patent: 3942589 (1976-03-01), Opitzer
patent: 4026675 (1977-05-01), Marsch
patent: 4280556 (1981-07-01), Cooper
patent: 4311189 (1982-01-01), Robin
patent: 4357932 (1982-11-01), Stacy
patent: 4862834 (1989-09-01), Jacobs
Elflein Reinhold
Kurz Rolf
Forbach GmbH
Lazarus Ira S.
O'Connor Daniel J.
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