Method for processing heating wire of aquarium heater and aquari

Details Method for processing heating wire of aquarium heater and aquari Method for processing heating wire of aquarium heater and aquari

1998-06-29

1999-11-02

Hoang, Tu Ba

Electric resistance heating devices

Heating devices

Immersion heater details

392503, H05B 340

Patent

active

059785497

ABSTRACT:
A method for processing heating wire of aquarium heater and an aquarium heater made by the method. The method includes a step of prior to sealing the heating wire, coating the heating wire with a thin insulative voltage-resistant and heat-resistant layer, whereby even though the outer protective skin of the heater is broken and water infiltrates therethrough, the insulative layer can still effectively avoid leakage of electricity and ensure safety. The aquarium heater includes: a heating wire wound on a heat-resistant insulative medium, the heating wire being processed and coated with an insulative layer of vaseline prior to sealing; a conductive metal wire connected to two ends of the heating wire; and an outer insulative protective skin coated on the heating wire and the conductive wire. The heating wire is electrically connected with the metal wire without using any terminal and the outer protective skin is integrally coated on surfaces of the heating wire, conductive metal wire and the adjoining section therebetween.

REFERENCES:
patent: 1281218 (1918-10-01), Schwartz
patent: 2150404 (1939-03-01), Schafer
patent: 2597226 (1952-05-01), Coates
patent: 2941176 (1960-06-01), Jacoby
patent: 3492624 (1970-01-01), Oakley
patent: 4135179 (1979-01-01), Snyder
patent: 5676872 (1997-10-01), Garcia-Rodriguez

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