Foam heater element

Details Foam heater element Foam heater element

H - Electricity

05

B

H05B 3/10 (2006.01)

Patent

CA 2500588

In place of the traditional coil of resistance wire, the heater element comprises a cellular matrix. The matrix is formed by plating a coating of electrically-resistive material (ERM), being metal or ceramic, onto a block of plastic (polyurethane) foam. The ERM forms an exoskeleton, which is mechanically rigid and robust, and yet has the desired heating characteristics when an electrical current is passed through. The block is slotted, to create and define a long narrow pathway. Terminals are formed at the ends of the pathway by plating e.g copper or nickel onto the foam.

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