Abstract: The invention concerns a controlling and monitoring device for avoiding damage through overheating in the case of flexible, textile surface heating elements which include at least two opposed contact conductors (3.1, 3.2) made of electrically conducting, non-insulated fibers or wires between which there extends a plurality of heating conductors (8) which are electrically connected to the contact conductors (3.1, 3.2) and to a current-voltage source. At least one additional conductor (1) is guided along at least one contact conductor over the heating conductors (8), wherein the additional conductor (1) is electrically insulated by a covering material and is connected to an electric or electronic evaluation switch (11).

Abstract: A two-dimensional heating element, especially for seat heaters in the motor vehicle sector, having a textile base material and contact conductors and heating conductors which are electrically conductive and touch one another. The contact conductors delimit heating areas. The heating conductors are laid effectively in the direction of stitch wales and orthogonal to the stitch wales in such a way that there are at least two zones functioning at least as a main heating area and at least as a secondary heating area with different heating capacities.

Abstract: A two-dimensional heating element, especially for seat heaters in the motor vehicle sector, having a textile base material and contact conductors and heating conductors which are electrically conductive and touch one another. The contact conductors delimit heating areas. The heating conductors are laid effectively in the direction of stitch wales and orthogonal to the stitch wales in such a way that there are at least two zones functioning at least as a main heating area and at least as a secondary heating area with different heating capacities.

Abstract: The instant invention relates to the arrangement of one or several connection layers for an electric resistance heating system installed on the film-laminated inside of covering fabrics, said heating system being sealingly connected by bonded or glued additional films, which is assigned to the seat and/or backrest surface, in particular the construction of seat and backrest elements of vehicle seats. The tension release is installed at a distance from the plane of the heat conductors for the attachment of the connection cable, whereby the distance between the plane of the heat conductors, namely of the covering film and the tension release is set by a blank of foamed material that is made of a formed material or some other elastic material and installed at a predetermined location.

Abstract: A heated seat comprises a molded body, a covering fabric and a first foil lining supported by the molded body, a meandering heating wire disposed in a plane adjacent the covering fabric, the heating wire being covered by a second foil. A connecting cable delivers electric current to the heating wire. The heating wire is connected to the connecting cable on a connecting plate which is disposed at a distance from the plane of the heating wire. A structural block made of a pliant material, such as a foam material, is disposed between the plane of the heating wire and the connecting plate. The connecting plate is at an angle to the plane of the heating wire and the structural block is wedge-shaped in cross-section.

Abstract: A seat heater for integrated assembly into car seats has at least two or several segments and faces, respectively, of any desired shaping. The heater includes several flat, electrically interconnected resilient heating elements (1.1/1.2) either forming a coherent heating face (1) or conforming to the section-wise individual seat configuration, especially the shaping thereof, with the connection between the individual heating elements (1.1/1.2) being respectively established by a low-strength electrical conductor (3) and the electrical conductor (3) being guided in an insulating resilient sheathing (6) of silicone rubber or the like engaging, at both ends, in partial lengths, each of the heating elements (1.1/1.2 et seq).

Abstract: A method for manufacturing a flexible heating appliance comprises placing a heating circuit comprising at least one heating wire between two layers of textile material and combining the latter either directly or with the aid of an adhesive layer, by applying heat and pressure. A lower textile layer consisting of one or several sublayers is placed on the rigid surface of a nail-studded template and the heating circuit is then laid on the lower with its wire being guided about the nail ends protruding from that layer. A second, upper textile layer is then placed on top of the lower one and the heating circuit thereon, and the two layers are joined together by means of a superimposed ironing unit comprising a rigid heatable ironing plate and, on the underside of the latter, an elastic, temperature-stable, heat-conductive pressure plate which covers the remaining protruding ends of the nails, with heating of the ironing unit with pressure and thereby thermally combining the two textile layers.

Abstract: A process and apparatus for electrically heating vehicle seats by using at least one meandering, insulated heat conductor covered on both sides by thermoplastic foil is disclosed. The heat conductor is spread over a bearing thermoplastic foil and covered with an identical foil. A firmly integrated heating element is then formed by applying heat and pressure. The heat conductors are located in meandering channels which are laid out according to a predetermined plan without any bending to the foils. The heating elements manufactured in this manner are combined with the cushion cores of the seat to be heated. In a preferred embodiment, the thermal deformation stability of the heat conductor insulation exceeds that of the foils by approximately 50%.

Abstract: The invention relates to a heating conductor connection between electrically heated seat and backrest surfaces separated by a bracing trough provided in the padding core. Beneath the bracing trough a bracing wire is bonded in the padding core and a connecting seam of the covering materials is located in the bracing trough. A further bracing wire which is disposed in an apron formed by an insert loop is provided, the two bracing wires being connected via clamping clips.The heated separate surfaces are formed by the heating conductor connections crossing through the bracing trough. These connections take up the mechanical stresses by tension, compression and bending without being endangered.According to the present invention, connecting webs (4.0) of copper strip (4.1), are provided between the heated surfaces (2 and 3) and the copper strip (4.1) consists of woven or knitted material. The connecting heating conductor section (4.2) is laid in meander or wave form, bearing on the copper strip (4.1) thus formed.