Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Reexamination Certificate
2006-05-02
2006-05-02
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
C392S465000, C392S488000
Reexamination Certificate
active
07039305
ABSTRACT:
A heat conductive tubular electric heater is disclosed. In the heater body, a water inlet tube is connected to a heat conductive tube and an electric tube is installed within the heat conductive tube so as to form a water path between a periphery of the electric tube and an interior of the heat conductive tube. When the cool water flows into the water inlet tube entering into the electric heater, the cool water can be heated continuously by the electric tube to increase it's a temperature thereof and is heated. Besides, the heat conductive tube is assembled within a water storage tank of the electric heater for being stored therein for further use. The heater is worthy for industrial uses, because of some advantages thereof, such as heating water fast, high thermal efficiency.
REFERENCES:
patent: 4567350 (1986-01-01), Todd Jr.
patent: 5216743 (1993-06-01), Seitz
patent: 5408578 (1995-04-01), Bolivar
patent: 5438642 (1995-08-01), Posen
patent: 6246831 (2001-06-01), Seitz et al.
patent: 6389226 (2002-05-01), Neale et al.
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