Electric resistance heating devices – Heating devices – Tank or container type liquid heater
Reexamination Certificate
2006-03-28
2006-03-28
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Tank or container type liquid heater
C392S449000
Reexamination Certificate
active
07020386
ABSTRACT:
A recreational vehicle water heater includes a tank for holding water to be heated and a heating element to heat the water in the tank. The tank has an inlet port and an outlet port. A cold water supply conduit is in fluid communication with the inlet port. A mixing valve has a first inlet port, a second inlet port, and an outlet port. The outlet port on the tank is in fluid communication with the first inlet port of the mixing valve. A cold water mixing conduit is in fluid communication with the second inlet port of the mixing valve. The mixing valve is configured to regulate a flow of heated water through the outlet port on the tank and a flow of cold water through the second inlet port of the mixing valve to output a flow of water at a desired temperature through the outlet port of the mixing valve.
REFERENCES:
patent: 5347956 (1994-09-01), Hughes
patent: 5588088 (1996-12-01), Flaman
patent: 6275655 (2001-08-01), Rixen
Kloster John M
Scime John M.
Atwood Mobile Products Inc.
Banner & Witcoff , Ltd.
Campbell Thor S.
McDermott Peter D.
Watson Dean B.
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