Composite ice protection heater and method of producing same

Details Composite ice protection heater and method of producing same Composite ice protection heater and method of producing same

2007-11-06

2007-11-06

Hoang, Tu Sa (Department: 3742)

Electric heating

Heating devices

With heater-unit housing, casing, or support means

C219S529000

Reexamination Certificate

active

11276344

ABSTRACT:
The invention includes a composite ice protection heater for an aircraft. The composite heater includes at least one electrically insulating layer, and at least one electric heater element comprising an electrically conductive layer bonded to the insulating layer. The conductive layer may include a pre-impregnated woven fabric that includes a plurality of threads that include an electrically conductive material, such as carbon or graphite fibers. The composite heater can be incorporated into a composite surface structure of an aircraft. The conductive layer and insulating layer may include a plurality of spaced openings through the layers that cooperate with an underlying open-cell matrix to attenuate noise at the associated surface of an aircraft. A desired electrical resistance of the conductive layer may be obtained by introducing a plurality of discontinuities in the layer, such as spaced holes or slits.

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