The present disclosure is directed to a method for forming a cured composite component. The method includes laying one or more layers of uncured composite material onto a conductive core. An electric current is supplied to the conductive core to resistively heat the one or more layers of uncured composite material to a temperature sufficient to cure the one or more layers of uncured composite material into the cured composite component.

A window for resistive heating and a camera apparatus including a window for resistive heating. The window includes a transparent member having an outer edge, wherein the transparent member is made of a first material, wherein the first material is a low conductivity material; and at least one set of two conductive pads disposed on the outer edge of the transparent member and electrically coupled to at least one source of electricity, wherein each conductive pad is made of a second material, wherein matter disposed on the transparent member is removed via resistive heating when electricity is conducted from the at least one source through the at least one set of two conductive pads and the transparent member.

A heater cable, which may particularly be a self-regulating heater cable, has a heating element including two bus wires spaced a distance apart by a positive temperature coefficient (PTC) material, giving the heating element a major axis and a minor axis. Bending the heater cable transverse to the major axis gives a tighter bend radius than bending the heater cable transverse to the minor axis. To facilitate bending in multiple directions, the heating element is twisted around the longitudinal axis of the heater cable. The twisting may be done uniformly to give the bus wires a helical configuration, which reduces electromagnetic interference and facilitates heater cable diameters as small as 0.25 inches. Additional layers, such as polymer jackets and a braided metal ground plane layer, may be added over the heating element. Each of these layers may be twisted or untwisted in various implementations.

A heater for melting glass includes: a heating member containing carbon (C) configured to emit heat rays upon power feeding; and a tubular member made of metal configured to have one end closed, and to house the heating member. The heating member includes a first heat generating part and a second heat generating part along an extending axis direction of the heater, and the first heat generating part is arranged at a position closer to the one end of the tubular member than is the second heat generating part. Denoting a unit-length resistance of the first heat generating part along the extending axis direction by X (Ω/m), and denoting a unit-length resistance of the second heat generating part by Y (Ω/m),

( 1/30)X<Y<(½)X  Formula (1)

is satisfied.

An electric heating pad with electrosurgical grounding comprising a heated underbody support, heated mattress or heated mattress overlay. In an illustrative embodiment the heating pad with electrosurgical grounding may include a flexible sheet-like heating element including an upper edge, a lower edge, and at least two side edges and a flexible sheet-like grounding electrode including an upper edge, a lower edge, and at least two side edges. A shell covering the heating element and grounding electrode and comprising at least two sheets (e.g., may be one sheet of material folded over to form two sheets) of flexible material, and a weld coupling the two sheets of flexible material together about the edges of the heating element and grounding electrode, wherein the weld is one of a RF weld, ultrasonic weld, or a heat bond, wherein the two sheets comprise PVC or urethane.

The present invention provides an electric heating device and its preparation method; the said electric heating device includes at least one PTC electric heating element and radiation fin; the said PTC electric heating element includes positive and negative electrodes and PTC element between positive and negative electrodes; the said radiation fin is located at outer surface of the said PTC electric heating element; surface of the said radiation fin_with no physical connection to the said PTC electric heating element, is uncharged. State-of-the-art flat aluminum tube or aluminum tube is not used for the electric heating device provided in the present invention, which not only saves costs, but also reduces heat resistance in intermediate link of flat aluminum tube, enhances heat exchange efficiency and increases volumetric power density.

An article comprising a heater that comprises a high-resistance magnification (HRM) PTC ink deposited on a flexible substrate to form one or more resistors. The HRM PTC ink has a resistance magnification of at least 20 in a temperature range of at least 20 degrees Celsius above a switching temperature of the ink, the resistance magnification being defined as a ratio between a resistance of the double-resin ink at a temperature ‘T’ and a resistance of the double-resin ink at 25 degrees Celsius.

A MEMS gas sensor includes a photoacoustic sensor including a thermal emitter and an acoustic transducer, the thermal emitter and the acoustic transducer being inside a mutual measurement cavity. The thermal emitter includes a semiconductor substrate and a heating structure supported by the semiconductor substrate. The heating structure includes a heating element. The MEMS gas sensor further includes a chemical sensor thermally coupled to the heating element, and the chemical sensor including a gas adsorbing layer.

In a method of making a carbon fiber, carbon nanotubes (CNT) are mixed into a solution including polyacrylonitrile (PAN) so as to form a CNT/PAN mixture. At least one PAN/CNT fiber is formed from the mixture. A first predetermined electrical current is applied to the PAN/CNT fiber until the PAN/CNT fiber is a stabilized PAN/CNT fiber. A heatable fabric that includes a plurality of fibers that each have an axis. Each of the plurality of fibers includes polyacrylonitrile and carbon nanotubes dispersed in the polyacrylonitrile in a predetermined weight percent thereof and aligned along the axes of the plurality of fibers. The plurality of fibers are woven into a fabric. A current source is configured to apply an electrical current through the plurality of fibers, thereby causing the fibers to generate heat.

In a method of making a carbon fiber, carbon nanotubes (CNT) are mixed into a solution including polyacrylonitrile (PAN) so as to form a CNT/PAN mixture. At least one PAN/CNT fiber is formed from the mixture. A first predetermined electrical current is applied to the PAN/CNT fiber until the PAN/CNT fiber is a stabilized PAN/CNT fiber. A heatable fabric that includes a plurality of fibers that each have an axis. Each of the plurality of fibers includes polyacrylonitrile and carbon nanotubes dispersed in the polyacrylonitrile in a predetermined weight percent thereof and aligned along the axes of the plurality of fibers. The plurality of fibers are woven into a fabric. A current source is configured to apply an electrical current through the plurality of fibers, thereby causing the fibers to generate heat.