Laminated resistive heaters comprising a carbon nanotube layer are described. The invention also includes methods of making laminated resistive heaters and applications using the resistive heaters.

An improved signal light unit for heat trace cables includes an energy storage device that stores energy during normal operation of the heat trace cable. During the normal operation, the light source of the signal light unit has a first illumination status. When there is a fault or other type of interruption in the electrical power in the heat trace cable, the energy storage device can discharge to power the light source. The light source can be illuminated in a different manner when it is powered by the energy storage device than during normal operation. Keeping the light energized in this manner when there is a fault in the heat trace cable and, moreover, making the light illuminate differently when there is a fault compared to normal operation, will facilitate inspection of the facility in which the heat trace cable is installed.

Voltage-leveled self-regulating heater cables with one or more cores are disclosed, each core having a positive temperature coefficient (PTC) material encapsulating a conductor. A conductive foil/wire and/or conductive ink portions cover a fraction of the cores. The conductive foil/wire may be formed about the cores circumferentially, and the conductive ink portions may be formed over the cores lengthwise. In embodiments with two or more separated conductive ink portions, the conductive foil/wire may be formed to electrically connect the conductive ink portions. A desired power output may be achievable by adjusting the fraction of the cores covered by conductive material.

Voltage-leveled self-regulating heater cables with one or more cores are disclosed, each core having a positive temperature coefficient (PTC) material encapsulating a conductor. A conductive foil/wire and/or conductive ink portions cover a fraction of the cores. The conductive foil/wire may be formed about the cores circumferentially, and the conductive ink portions may be formed over the cores lengthwise. In embodiments with two or more separated conductive ink portions, the conductive foil/wire may be formed to electrically connect the conductive ink portions. A desired power output may be achievable by adjusting the fraction of the cores covered by conductive material.

A low smoke, zero halogen self-regulating heating cable includes a semi-conductive heating core and two conductive wires embedded within and separated by the semi-conductive heating core. The cable also includes a primary jacket surrounding the semi-conductive core, a braid surrounding the primary jacket, and a final jacket surrounding the braid. At least one of the primary jacket and the final jacket includes a low smoke, zero halogen material.

An electric belly band heater is configured with only one end of the heater cable assembly thereof having lead wires extending therefrom. A single housing box is positioned at the end of the heater cable assembly where the lead wires exit to encompass the lead wires and includes an opening to receive a conduit to provide further protection to the lead wires exiting the housing box and being connected to a power source.

The present invention relates to a disposable heating cup intended for heating up a food product or for maintaining such a food product when pre-heated hot in a disposable cup over an extended period of time, wherein the heating cup is characterized in that it comprises a printed electrical heating circuit and a printed USB connector linked to said electrical heating circuit. Furthermore, the present invention relates to a packaged food product comprising the disposable heating cup, and a method for heating a food or beverage product with making use of a disposable heating cup.

An endless-belt shaped heating element is produced by: dispersing annealed stainless-steel fibers in the heat-resistant resin or a precursor thereof; and, producing a molded article of the heat-resistant resin in which the annealed stainless-steel fibers are dispersed.

An apparatus for receiving smokable material to enable at least one component of the smokable material to be volatilized is described. In an example, the apparatus comprises a housing having a first compartment and a second compartment. The first compartment is a heating compartment for receiving smokable material in use. The second compartment is an electronics compartment and containing at least one of control circuitry and a power source. The first compartment and the second compartment are substantially hermetically sealed from each other to minimize or prevent air or vapor flowing between the compartments.

A conductive polymer composite comprising conductive particles dispersed in a polymer matrix, the polymer matrix comprising a first polymer; and a second polymer, wherein the first polymer and the second polymer are immiscible; and the majority of the conductive particles are dispersed in only one of the first polymer and the second polymer. A method of manufacturing the conductive polymer composite of any preceding claim comprising providing conductive particles, a first polymer and a second polymer, wherein the first polymer and second polymer are immiscible; dispersing the conductive particles in the first polymer or second polymer; and blending together the first polymer and second polymer. A heating element comprising a plurality of electrodes and the foregoing conductive polymer composite disposed therebetween A container heater, heating jacket, or trace heater comprising this heating element.