A heating pad with a plurality of parallel connected heating circuits that are provided with a temperature control circuit. The parallel connected heating circuits are longitudinally separated from each such that a user may cut or sever the heat mat along predetermined cut points that are indicated on the exterior surface of the heat mat. In this way, the length of the heat mat can be adjusted in the field based on the application by simply cutting the heat mat along a predefined cut point.

A floor mat including a mat assembly, a frame assembly, a case assembly and a vehicle assembly is disclosed. The mat assembly includes a mat mounted to a frame of the frame assembly. A user lays on the mat and underneath a vehicle of the vehicle assembly needing repairs. Mounted onto the frame are lights. The lights are positioned to illuminate the vehicle and regions needing repairs. The user can complete repairs unassisted and at night with the lights. Underneath of the frame are wheels for maneuvering and positioning of the mat and the user underneath of the vehicle. The mat includes heating members to provide heat and comfort to the user as they work in harsh weather conditions. The case assembly includes a case for storing and transporting the frame. The floor mat increases the safety, comfort and efficiency of the user when repairs are being completed.

A heating tile designed to be easily installed using standard construction methods and materials while providing a radiant heating method that is compatible with both computer controlled systems as well as simple thermostat controls, can be repaired without major floor rework, does not produce a significant magnetic field, is protected against overheating due to excessive exposed surface insulation, and is water and contaminant resistant even if there is minor cracking of the tile.

A system and method for heating concrete structures to either prevent the build-up of freezing precipitation or eliminate freezing precipitation on a top surface of the concrete structures. The system includes a heating assembly integrally formed with a concrete structure to apply thermal energy to the top surface of the concrete structure. Optionally, the heating assembly includes heating elements formed of carbon fiber tape. Following formation of the concrete structure, the heating assembly is configured for unified movement with the concrete structure. The system optionally includes a control assembly operatively coupled to the heating assembly. The control assembly selectively powers the heating assembly and can be configured for remote operation. In use, the control assembly can be selectively activated from a remote location to power the heating assembly and heat the concrete structure.

A multilayer structure for the production of a heating floor or wall covering or similar includes a decorative layer made up of at least one plastic surface layer. The decorative layer is bonded onto a heating layer, which heating layer is bonded onto a sublayer intended to be installed on the floor or a wall or the like. The heating layer is made up of a conductive band comprising conductive particles homogeneously distributed over the surface and/or in the thickness of said conductive band, which supports at least three conductive electrodes spaced from one another so as to define a discontinuous heating surface.

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.

Described herein is a composite panel that includes a first layer made from an electrically non-conductive material. The composite panel also includes a resistance heater printed onto the first layer. Further, the composite panel includes a second layer adjacent the resistance heater, the resistance heater being positioned between the first layer and the second layer. The second layer is made from an electrically non-conductive material.

A support for the heating elements of radiant coverings and floors includes bosses having a concave surface. In some examples, the concave surface includes at least one adhering low relief that creates an extraction-preventing undercut on the concave surface.

A heater is provided having at least one thermally sprayed resistive heating layer, the resistive heating layer comprising a first metallic component that is electrically conductive and capable of reacting with a gas to form one or more carbide, oxide, nitride, and boride derivative; one or more oxide, nitride, carbide, and boride derivative of the first metallic component that is electrically insulating; and a third component capable of stabilizing the resistivity of the resistive heating layer. In some embodiments, the third component is capable of pinning the grain boundaries of the first metallic component deposited in the resistive heating layer and/or altering the structure of aluminum oxide grains deposited in the resistive heating layer.

A heating device may include a substrate and a heating element disposed on a surface of the substrate. The heating element may include an ohmically resistive coating having a layer thickness of 2 to 300 microns. The ohmically resistive coating may include at least 30% by weight of at least one ductile or malleable metal and a plurality of electrically resistive particles. The ohmically resistive coating may be deposited via the at least one of the cold spray and the solid state deposition performed at a temperature below at least one of a melting temperature and a partially softening temperature of the at least one ductile or malleable metal. The ohmically resistive coating may exhibit less heterogeneity and porosity than a thermally sprayed coating, may have a density of 90% or greater, and may have a porosity of 10% or less.