Immersion heater device for aquariums and the like

Details Immersion heater device for aquariums and the like Immersion heater device for aquariums and the like

2006-05-16

2006-05-16

Campbell, Thor S. (Department: 3742)

Electric resistance heating devices

Heating devices

Immersion heater details

C219S501000, C219S523000, C392S498000

Reexamination Certificate

active

07046923

ABSTRACT:
An immersion heater device for aquariums and the like. The heater device has a casing which contains a heating element. The casing, at least in the region of a radiant zone of the heating element, includes a layered structure having at least one layer of metal material and one layer of plastic material. The layer of metal material is interposed between the heating element and the layer of plastic material.

REFERENCES:
patent: 5834742 (1998-11-01), Yoshida
patent: 5905849 (1999-05-01), Ito
patent: 6061500 (2000-05-01), Su
patent: 6097007 (2000-08-01), Wang
patent: 6584280 (2003-06-01), Wang
patent: 2401585 (1979-03-01), None

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