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US 2019/0098703 A1Published application
Heating elements and heating devices
AssigneeE. I. Du Pont de Nemours and Company
InventorJonathan A. Weldon
Life of this patent
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Abstract
In a first aspect, a heating element includes a network of electrically conductive layers comprising a plurality of polymeric resistive layers and two or more electrodes in contact with the network of electrically conductive layers. The polymeric resistive layers have a sheet resistance in a range of from about 0.5 ohm/square to about 2 Megaohm/square. The array of electrodes electrically connects the heating element to a power source. In a second aspect, a forced-convection heating device comprising the heating element of the first aspect.
Claims16
A heating element comprising:
- a network of electrically conductive layers comprising a plurality of polymeric resistive layers, wherein the polymeric resistive layers have a sheet resistance in a range of from about 0.5 ohm/square to about 2 Megaohm/square;
- and
- two or more electrodes in contact with the network of electrically conductive layers, wherein the array of electrodes electrically connects the heating element to a power source.
Dependencies are inferred from the claim text.