Abstract: A wall, floor or ceiling heater comprises a plurality of self regulating, preferably PTC conductive polymer, heater elements each of which is connected to two or more connection elements. The elements are held by a support. In a preferred embodiment the heater elements are positioned parallel to each other, and perpendicular to the connection elements. The support is preferably made from a rigid material which is hinged to allow the heater to be folded or rolled for easy transport.

Abstract: A heating element for textiles is disclosed, which comprises a plane textile element and, combined with this, metal conductors, which can be connected to a source of electrical current and which oppose the electrical current flowing through them with a heat-producing resistance. As resistance elements, the conductors have metallic fibers or filaments with a denier like that of natural or synthetic textile fibers. The metallic fibers or filaments have an average cross sectional thickness of about 8 to about 24 microns.

Abstract: A heated sock (14 or 16 of FIG. 1) for keeping the wearer's foot warm in a cold environment and including a resistive heating unit (10 or 12) secured in two of the socks, a battery source (76 FIG. 2) having first (78) and second (80) terminals and which is carried on the wearer's body, and switches (36 and 64) controllable by the wearer for acting in combination with the resistive heating unit (10 or 12) to selectively cause different and controllable amounts of electric current from the battery source (76) to flow through the resistive heating unit (10 or 12) to thereby generate different and desired amounts of heat in the sock (14 or 16).

Abstract: An electric blanket or the like includes a heating element having at least two elongate electrodes separated by a heating material that has a positive temperature coefficient of resistance and that will generate heat when a current passes through it. At least one of the electrodes is a resistive heating conductor, such as nichrome wire and is so arranged that heating current supplied to the heating element from an electrical supply will flow through both the at least one conductor and the heating material.

Abstract: An electric blanket for a person with arthritis and circulatory problems in their legs is provided having a control switch which is located at the top of the blanket for controlling an upper heating element disposed over the body of the person and a lower heating element disposed over the feet of the person so that heat can be supplied in various combinations to the body and feet of the person.

Abstract: The temperature control of an electric blanket changes the preset temperature in accordance with the presence or absence of a human body so as to ensure comfortable sleeping. The preset temperature is changed to a higher temperature setting upon connecting the power source. When the user goes to bed so that the human body is detected by human body detecting means, the higher temperature setting is automatically decreased by setting changing means to the temperature preset by temperature setting means. Also, when the user rises for the time being after having fallen asleep, the preset temperature is automatically raised so that the user is again allowed to fall asleep comfortably.

Abstract: Method and apparatus for inserting the heating cable into the shell of an electric blanket, including a plurality of slotted tubes which are inserted to guide a flexible leader which draws the cable successively through each of the adjacent channels in the shell.

Abstract: A heater for a car seat including a base and a back rest, the heater having at least one heating coil adjusted for connection to a power source and including a multi-ply fabric with at least one outer protective layer of union, a second layer and a third layer with a low thermal transfer value, the heating coil being arranged in and laminated with the second layer and being arranged in one plane in zigzag on a circle to form a star shaped configuration, the heater being a unit in the form of a seat cover detachably encasing the base and back rest.

Abstract: An electrical heating fabric has a warp composed of non-conductive threads, and selvedges which include plural lead wires. In the weft direction the fabric has both non-conductive threads and conductive wires. The different types of weft material are arranged in successive strips disposed transversely to the warp. First strips have non-conductive weft threads only. Second strips additionally have conductive weft wires. The strips are arranged alternately. The weft wires are all discrete, and their two ends are either in simple contact with the selvedge lead wires or are interwoven therewith.

Abstract: A plurality of heating wires are arranged so as not to cross each other. Common power source terminals are connected to two end portions or at an intermediate portion of each heating wire. Each common power source terminal has a plurality of conductors which cross the heating wires. The heating wires and/or the conductors are fixed on one surface of the nonconductive fiber sheet or are woven thereinto.

Abstract: A low voltage battery operated heating bib containing a low voltage heater connected in circuit with a low voltage battery concealed in a neck scarf to which the bib is attached and made an integral part.

Abstract: A method and apparatus for adhesively bonding together in edge abutting relationship two sheets of woven, felted, or other textile material such as carpet using a joining tape which includes a removable electrically conductive foil and layer of heat so/tenable adhesive. The control circuit maintains the adhesive in a tacky state while the abutting edges which overlap the tape are adjusted as required to form the desired joint.

Abstract: In a known hot melt screen printing machine the printing ink is heated by an electrical current which is conducted through a stainless steel mesh of a screen plate. In the known machine, the printing accuracy is not good, mainly because of variation of tension and thermal expansion of the mesh.The mesh according to the present invention consists of insulating material fibers and an electroless plating layer formed on the fibers. The plating layer preferably consists of a nickel phosphorous alloy. A squeezing means for forcing the printing ink to pass through a printing pattern and/or a printing base for mounting an article to be printed are provided with a heating means. One of the advantages of the present invention is a high printing accuracy.

Abstract: A flocked electric blanket construction is provided wherein a fabric substrate woven from filament yarn is interposed between, and is bonded to, layers of foam. The exposed surfaces of the foam are flocked. The substrate includes channels woven into the fabric to receive electrical heating wires.

Abstract: A heat cap is provided for applying heat to hair on a user's head, primarily to a pile or row of hair along the top of the user's head. The heat cap is shaped to conform substantially to the shape of the user's head with the pile of hair thereon so as to apply heat evenly to the hair. The heating coil is disposed in the heat cap only in those areas where heat is desired for the hair and is absent in areas of the heat cap where it is undesirable to apply heat to the head. An adjustable flap on each side of the heat cap enables the size of the cap to be adjusted to fit different users. The adjustable flaps also tend to hold the cap outward away from the ear and lower sides of the head and can be easily opened to enable access to the user's ear while the heat cap is being worn. An electrical thermostat automatically brings the heat cap to an optimal temperature and maintains the temperature during the desired conditioning period.

Abstract: An electrically conductive element comprises a support (perferably a flexible continous polymeric film) and fibrous material (preferably a spun glass fiber web) which is partially embedded in the support and partially protruding therefrom, the protruding fibrous material being part of a conductive layer comprising randomly distributed fibers having conductive material adhered thereto. The element can be prepared from a conductive composition containing conductive particles dispersed in a liquid medium (preferably an aqueous dispersion of carbon particles) by applying said composition to a substrate comprising a support and fibrous material which is partially embedded in one surface of the support and partially protruding therefrom, and then drying to evaporate the liquid medium. The elements are particularly useful as heating elements which comprise electrodes so that current can be passed through the conductive layer.

Abstract: Heated clothing includes:(a) multiple clothing sections adapted to cover different portions of the human body,(b) electrical wires carried by such sections and including bus wires and heater wires, and(c) circuitry for controlling battery powered electrical current flow to such wires, and including switch structure connected in series with one or more of the heater wires for interrupting current flow thereto without requiring disconnection of bus wires.

Abstract: An electric heating appliance such as an electric comforter and a method of manufacturing the same in which two inner thermal insulation layers of resilient fiber fill material, one of which has substantially greater thermal conductivity than the other, and two outer textile fabric layers are stitched together along parallel spaced lines arranged in pairs of rows to form a shell with a series of laterally spaced channels in which are disposed an electric heating wire. Each inner thermal insulation layer has facing means on its inner surface to facilitate insertion of the heating wire into the channels and to resist penetration of the heating wire into the layer. Successive shells may be formed in a continuous manner by passing webs of the outer and inner layers in juxaposed relationship through a multi-needle stitching machine which stitches the webs together with groups of spaced parallel rows of stitching.

Abstract: A warming room whose flexible, electric blanket-like wall or walls, floor and ceiling generate surface heat to provide uniform warmth in the area which they enclose. Portions of the warming room comprise one or more warming walls or barriers to increase the temperature of an indoor area and enhance the comfort of its occupants. Using the invention, people lower thermostat settings in portions of rooms, offices or other buildings which are not occupied while they occupy the warmer area within the warming room or adjacent to a warming barrier or enclosure made of warming barriers.

Abstract: The present invention relates to a battery powered thermal garment that is provided with a battery recharging circuit that is designed to recharge a battery package associated with said thermal garment approximately 30-40 times as fast as conventional recharging devices. In addition, the recharging circuit of the present invention is provided with a separate and direct power source for energizing the heating elements within said garment independently of said battery package. With respect to the recharging circuit, a transformer is provided for stepping down a AC voltage source and the transformer includes a dual tap, one for providing the independent power source to the garment and the other providing a recharging current. The recharging current is rectified and then directed through a silicon control rectifier to the battery package for recharging.

Abstract: Apparatus for treating portions of the arms or legs of a human body with heat and moisture by means of a moisture-resistant heating pad retained in a cylindrical configuration by means of a fabric enclosure having means to receive the heating pad and retain it in its circular configuration in close proximity to the body member being treated. A suitable moisture source is provided in the form of a pad positioned in the enclosing material.

Abstract: A quilt shaped to fit about the top surface, sides and bottom edges of a mattress. The quilt is formed of insulated cotton material with a continuous electrical heating element embedded in the top sheet which is covered by a waterproof plastic cover sheet bonded to the top sheet. The heating element is externally connected to a control box for regulating the flow of the electricity to the heating element.

Abstract: An electrical appliance for heating feeding-bottles, baby-food pots and containers of a similar type comprises a support and a heating element which is intended to come into contact with the container. The appliance further comprises a relatively flexible heating quilt which is fixed along a support handle, the quilt being intended to be wound and detachably fastened around the feeding-bottle or container to be heated.

Abstract: An electrically heatable floor covering comprising a carpet of woven fibers, wherein an electrical heating element is enclosed in the carpet body, which is made of a straight thin copper wire having a reinforcing coating of polytetrafluoroethylene which causes the wire to withstand impressions produced by footsteps and by heavy furniture without being broken.

Abstract: A heating pad which includes adjustable belt means to securely hold the pad in engagement with the back area of a person from the lower spine up to and including the shoulders and back of the neck areas, or which may be adjustably held in engagement with the front area of a person from the lower abdomen up to and including the chest and shoulder areas.

Abstract: A sheet of material is adapted to be supported on a part of a human body in contact therewith and has adjusting devices for adjusting the size thereof to fit different sized people. Electric heating elements are embedded in the stretch support material. An energizing device releasably electrically connects the heating elements to a source of electrical energy for selectively heating the part of the body contacted by said sheet of material.

Abstract: An electric blanket shell is composed of first and second-needled textile fabrics with a yarn layer disposed in at least one of the needled fabrics. The yarn layer has a plurality of first planar yarns extending generally in a first planar direction. A heat-fusible component is disposed in at least one of the needled fabrics. A plurality of small, discrete sonically or ultra-sonically-produced fusion bonds, spaced from each other, link the needled fabrics to form a blanket shell. The fusion bonds form a series of patterns across a planar dimension of the blanket shell and the patterns define a series of channels, for receiving heating wires, between the needled fabrics. The patterns of fusion bonds are disposed in a direction transverse to the direction of the first planar yarns. The fusion bonds of any one pattern do not engage more than about 50% of the first planar yarns and overlaps of fusion-bond patterns are substantially avoided.

Abstract: A toilet seat is heated by a resilient cover having a heating element, the cover arranged to be detachably secured to the toilet seat.

Abstract: An improved heating device such as a heating pad comprising a fabric base and insulated resistance wire mounted in said pad, preferably in a backward and forward sinuous pattern, at least one thermostat connected in series with the resistance wire element at both ends by means of lead wires of a low resistance metal such as copper, each thermostat being positioned intimately with a span or straight portion forming part of a sinuous loop of resistance wire, a switch connected in series with the resistance wire, and a plurality of bars of a metal such as lead mounted in the pad. In an improved embodiment the insulation on the resistance wire is formed of a plastic material able to withstand the elevated temperatures attained by the resistance wire during operation.