A heatable floor panel for an aircraft, with a supporting level, a heat-generating level and a heat-conducting level. The heat-generating level comprises a fiber composite layer with fibers and with a matrix surrounding the fibers. The fibers are at least partially formed as conducting fiber, and the conducting fibers are formed as carbon fibers with an electrically insulating coating. The conducting fibers integrated in the floor panel in order to conduct a heating current through them. Due to the electrically insulating coating of the conducting fibers, leakage currents are avoided. The carbon fibers serve not only as heating elements, but, at the same time, also as reinforcing fibers of the fiber composite layer or of the floor panel.

A heatable floor panel for an aircraft, with a supporting level, a heat-generating level and a heat-conducting level. The heat-generating level comprises a fiber composite layer with fibers and with a matrix surrounding the fibers. The fibers are at least partially formed as conducting fiber, and the conducting fibers are formed as carbon fibers with an electrically insulating coating. The conducting fibers integrated in the floor panel in order to conduct a heating current through them. Due to the electrically insulating coating of the conducting fibers, leakage currents are avoided. The carbon fibers serve not only as heating elements, but, at the same time, also as reinforcing fibers of the fiber composite layer or of the floor panel.

The present invention addresses the problem of providing a flooring material whereby it becomes possible to improve an anti-aging effect of an activity in various facilities. The present invention provides a flooring material containing a stone material, in which the stone material contains silicon dioxide in an amount of 67.0 to 80.0% by mass, inclusive, relative to the whole amount of the stone material.

A curtain wall includes one or more mullion profiles and one or more transom profiles and panels which are mounted in the mullion profiles and in the transom profiles by their edges. The one or more mullion profiles extend vertically and are provided with an undercut groove on two opposite sides which has an access opening. The grooves form a rebate in which the rim of a panel is mounted. The undercut groove has an elongate cross section which is provided, at the one or several of the transverse ends, with a rounded section and/or which is free from roundings with a radius of less than 2 millimeters at one or several of the transverse ends.

An aircraft heated floor panel includes a first face sheet, a second face sheet opposite the first face sheet, and core with an electrically conductive core portion. The electrically conductive core portion supports the first face sheet and the second face sheet, and is electrically insulated from the external environment to receive electrical power, resistively generate heat, and communicate heat to the first face sheet.

The present application discloses a high-performance far-infrared surface heating element of carbon composite material and application thereof. The surface heating element comprises: a carbon composite material layer comprising a film-like material consisted of an sp.sup.2 hybrid structure carbon material; and thermal stable electronic insulating layer provided on opposite sides of the carbon composite material layer. The surface heating element of the present application has the characteristics of flexibility, high strength, high stability, high safety, etc., and has excellent flame retardancy, no harmful electromagnetic, no circuit protection module, economical, safe and practical characteristics, and no safety hazard; it can be used as a direct surface heating source in the field of low-voltage electric heating, such as a civil heating device used in the preparation of a floor heating device, an electric heating carpet, an electric heating mattress or a heater, as well as an industrial heating device for lithium battery modules and industrial pipe heating elements.

An electric radiator is described, having a housing, delimiting an upper compartment and a lower compartment, at least one heating member installed in the upper compartment and capable of emitting thermal radiation when it is supplied with electrical power, at least one electrical energy storage device, an attachment device enabling the removable installation of the electrical energy storage device in the lower compartment, in such a way that the electrical energy storage device is capable of varying between a connection configuration and a disconnection configuration, and a heat protection shield located between the heating member and the electrical energy storage device and blocking infrared rays while allowing the movement of air by convection, which are emitted in the direction of the electrical energy storage device.

A heater having a cover and a heating element. The heating element is configured to generate heat that is transferred through the cover via radiative heating and/or conductive heating. The cover has a thermal effusivity in a range of about 20-300 Ws.sup.(1-2)/m.sup.2K

A heater drive apparatus functions as a power supply control apparatus, and controls power supply to an electrical heating wire. In the heater drive apparatus, a current output circuit and a detection resistor function as a current detection unit, and detect a current flowing through the electrical heating wire. A microcomputer repeatedly calculates an electrical heating wire temperature relating to the electrical heating wire based on the detected current. A drive circuit functions as a switching unit, and switches a switch on or off in accordance with the calculated electrical heating wire temperature.

A film type planar heating element for preventing electromagnetic waves is configured in a form of multiple layers of films to generate heat, the film type planar heating element comprising: a base film made of synthetic resin and mounted on a floor in a form of sheet film; a carbon heating unit made of carbon materials and arranged in multiple rows to generate heat planarly on a top side of the base film; a pair of center-adjacent copper foil busbars disposed in a center area of the base film, applying current to the carbon heating unit, and facing each other in a close distance so that intensities of electromagnetic waves and magnetic field are mutually canceled each other when the current is applied; a pair of center silver busbars formed between the carbon heating unit and the center-adjacent copper foil busbars and made of silver materials allowing the current, which is applied to the center-adjacent copper foil busbars, to smoothly flow to the carbon heating unit, and a Lamirex film coated on the top side of the base film to protect the carbon heating unit and the center-adjacent copper foil busbars.