Abstract: This invention relates to a threshold saddle which in outward appearance resembles the usual saddle provided in doorways but which also provides a fluid channel for interconnecting baseboard radiation elements on either side of the doorway.

Abstract: An electrically-powered space heater has a boiler connected to supply a vaporized working fluid consisting of a 2 to 1 mixture of ethylene glycol and water to a slightly upwardly inclined, closed-end, finned-tube heater exchanger at a pressure of between -5 p.s.i. and 15 p.s.i. and at a temperature of between approximately 190.degree. F. and 250.degree. F. The combined internal volume of the boiler and heat exchanger is between about seventeen and twenty cubic inches with the boiler having an internal volume of about sixteen cubic inches and sized to be at least four times the internal volume of the heat exchanger. The heat exchanger has a length of between one and eight feet and the boiler is heated by an electric resistance heating means having a wattage of between 300 and 1200 watts, with the wattage increasing at a rate of approximately 150 watts per half cubic inch increase in internal system volume in the internal volume range set forth above.

Abstract: A reduced profile electric baseboard heater has an elongated, sheet metal shell, having top, upper floor, front, back, and lower floor sections defining a cabinet, the plane of the front and back being substantially parallel, the upper floor slanting downwardly from the back to the front, a removable end cap on each end of the shell, the plane of the lower floor in geometric association with the plane of the upper floor and front defining an electrical raceway, and the top, front, back and upper floor defining a heater element cavity overlying the raceway. A removable cover having floor, back and end walls is positioned in the raceway and encloses a portion thereof. An electric heating element positioned in the heater element cavity is controlled by a thermostat located in the raceway and enclosed by the cover.

Abstract: Radiator housing assembly, for a hydronic baseboard heater for heating a room or area, forming a part of an overall building or zone heating system having a master thermostat, said assembly having a damper which is positionable between open and closed positions in a controlled manner to regulate the flow of heated ambient air therethrough. The damper is adapted for automatic electrical positioning in response to a remote control device, such as an adjustable thermostat in the room or area to be heated in order to maintain the room or area at a predetermined desired temperature at or lower than the temperature setting on the master thermostat, thereby conserving energy.

Abstract: An improved air cooling type heat exchanger for a refrigerating apparatus accommodated in a container is disclosed, wherein the improvement consists in that the air cooling type heat exchanger is divided into a plurality of segments which are arranged in a stepped relation in the direction of main air flow in such a manner that they overlap with a certain distance kept between the adjacent ones. Thus, it is assured that the heat exchanger is designed and constructed in smaller dimensions and moreover it is operated at a high efficiency.

Abstract: A portable electric baseboard heater includes a unitary structural back plate having a central vertical portion bounded by an integral lower triangular closed box-like structure having a downwardly sloping forward surface and an integral upper triangular portion having an upwardly sloping forward surface, a horizontal top surface and a rear vertical wall in the same plane as the central portion and terminating spacedly thereabove to provide a horizontal opening aft of the upwardly sloping forward surface. An angularly bent or molded plastic liner covers the interior of a portion of the top and upwardly sloping surfaces of the upper triangular portion to form an internal thermally insulative handle accessible through the horizontal opening to permit lifting of the heater. The lower triangular portion serves as a protective raceway for power supply wires to an electric finned tube heater assembly supported by the back plate between the upper and lower triangular portions.

Abstract: An air return bulkhead is provided for mounting on the interior surface of one upstanding wall of a container, the container wall supporting an airflow heat exchanger assembly on an upper portion thereof including a central downwardly opening air inlet, a pair of upper opposite side horizontally and oppositely outwardly opening air inlets and a central upper temperature conditioned air outlet. The bulkhead is constructed to define an upstanding return airflow path extending upwardly along the one wall with the airflow path including a central portion and a pair of opposite side portions. The upper end of the central portion of the airflow path is registered with the central downwardly opening air inlet and the upper ends of the opposite side portions of the flow path are disposed outwardly of the opposite sides of the airflow heat exchanger. A pair of opposite side upper extensions are provided for the bulkhead and mounted on the latter in adjusted upward extended positions relative thereto.

Abstract: Protective panels are disclosed for insulating walls and other combustible surfaces from a nearby stove or other heating device. Simple, economical shallow U-shaped pieces, one positioned upon the other, create two distinct conduits through which air flows upwardly. Also, the panels reflect radiant heat back towards the stove or other heat source and away from the area protected. A plurality of these double conduit panel members provide an insulating barrier between the heat source and the combustible surface to cover areas of any desired size.

Abstract: A convector heater has a front plate 1 with a surround 2 spaced around the periphery of the front plate 1 so as to define a top, bottom and side air gap 3 between the front plate 1 and the surround 2. A back plate 4 is connected at its periphery to the surround 2 and is spaced from the front plate 1 so as to define a convection air space 7 between the front plate 1 and the back plate 4. The convection air space 7 is open to the surrounding atmoshere at the air gap 3. A heat exchanger, such as an electric heater, is disposed at the bottom of the convection air space 7 for heating air to induce a convection air flow through the convection air space 7 from the bottom air gap 3b to the top air gap 3a. A secondary air flow is induced into the air space 7 through the side gaps 3c, 3d by the main convection air flow.

Abstract: A multilayer heat insulating and reflecting strip is adapted to fit a baseboard heater behind and below the lengthwise extending heating element. An adhesive means along one edge secures the strip in place. The strip can be a laminate of polyvinylchloride foam and aluminum foil.

Abstract: A heat storage apparatus for a conventional electrical baseboard-mounted heater requires no modification of the heater and provides means for supporting, storing heat within and circulating electrically-heated air through blocks of heat retaining material and an easy method of conversion to such form.

Abstract: A combination heat transfer panel and wall shield for use with stoves and other radiant heaters. The device comprises a case housing two parallel, spaced curtains defining first and second convection chambers. The case is adapted for location either against, or in spaced relation to a structural wall behind a radiant heater. It is formed with a large central opening permitting entrance of radiant energy from the stove, a cold air inlet communicating with the convection chambers either at the lower end of the case or at the sides, and a hot air exhaust communicating with the upper end of the convection chambers. The outermost curtain may be constructed for adjustment between positions in which it absorbs or reflects radiant energy, as desired.

Abstract: A process is provided for the separation of nonfibrous material from mineral wool fibers which comprises dispersing the fibers in an aqueous solution comprising a surfactant having at least one hydrophobic group containing at least eight carbon atoms and at least one cationic hydrophilic group having at least one nitrogen or sulfur atom, such as a quaternary ammonium surfactant. The fibrous material is dispersible in the surfactant solution, while the nonfibrous material is not and consequently can be separated by centrifuging or settling and decantation.

Abstract: The invention provides a heat apparatus for heating rooms in buildings and acting as baseboard in the rooms, where the heat is transmitted from a gaseous or liquid heating medium, such as steam or hot water, which passes channels in the housing of the apparatus. The housing comprises a housing portion which is a profile rail of metal, preferably a metal alloy with great heat conductivity, such as an aluminium alloy, and the profile rail is formed with integral, longitudinally extending, inner beads having hollow spaces for the heating medium, whereby the housing portion containing the heating medium channels can be manufactured in one operation by extrusion.

Abstract: A warm water heater consists of a plurality of horizontally arranged profile elements spaced one above the other and attached to a pair of vertical posts, whereby between each pair of profile elements a horizontal air inlet gap is formed at the rearward side of the heater and a horizontal air outlet gap at the front side of the heater. The inlet gap is disposed at a lower level than the outlet gap. Each profile element is provided with an integral water channel, the ends of which communicating with vertical water channels provided in the vertical posts respectively. Plugs are inserted in the water channels in a predetermined pattern so that warm water is positively passed through the heater along a serpentine way.

Abstract: A protective housing is provided with bottom, front, upwardly inclined and depending panels for completely housing the bottom, front and upper portions of a strip heater, said housing being anchored to the floor and upstanding wall along which the strip heater is disposed.

Abstract: There is provided a convector comprising a plastic tube arranged in the shape of a flattened helix, the major flat sides of which are displaced relative to each other in the axial direction of the helix, such that the bend radius of the tube at the minor sides of the helix is substantially longer than half the distance between the major sides of the flattened helix.The convector can be produced by starting with a supply of plastic tubing, forming a bend in the tube, inserting the bend in a slot in one of a pair of parallel support structures, each having a series of oblique and parallel slots, forming a fresh bend in the tube and inserting the bend in a slot on the other structure, and so on.

Abstract: In a heating apparatus comprising heating elements such as elongated tubular heating elements, radiating heat towards the heated space, and a reflector located behind said heating elements, the radiation-convection ratio is controlled by slowing or braking the upwardly directly current of convection air heated in contact with the heating elements. A box-like member is provided above the heating elements in order to retain the convection air flowing upwardly, thus braking said upward movement of the air. A cushion of hot air is thus created within said box-like member, which opposes the upward movement of additional heated air. The box-like member is open rearwardly to permit escapement of air, thus reducing both the velocity and the temperature of the convection air leaving the apparatus. This results in a much more uniform temperature in the space, for instance in a room, heated by the apparatus, the temperature near the floor and near the ceiling being substantially equal.

Abstract: An electric space heating apparatus consisting of a plurality of sections having box-like portions which by means of middle pieces are interconnected in such a way that the apparatus can extend along all the walls of the room and the zig-zag electric heating elements in the apparatus sections can be fed continuously through the complete apparatus, the apparatus being adapted to deliver the heat to the space by approximately 65-75 per cent radiation and approximately 25-35 per cent convection to circulating air, said apparatus can be easily mounted by persons without special education and authorization.

Abstract: The radiator consists of a plurality of tubular elements A arranged side by side and in successive order to one another, said elements being connected at the lower and upper ends thereof.Each element is made of a parallelipipedically shaped block, the upper end whereof is tapered, whilst wings 32 and and edges 22 are provided at the opposed faces of said block to engage head against head, in order to form, between the various elements, chimney-like ducts 28, the upper openings 36-38 whereof have a smaller cross section than the lower ones, in order to increase the circulation of hot air.

Abstract: Radiator for transmitting heat from a fluid medium to a surrounding atmosphere. The radiator of the invention contemplates rapid and efficient manufacture of radiator units of different sizes from stock material and is arranged for such manufacture either in a factory or at a construction site. Preferably identical top and bottom channeled parts are provided as top and bottom headers of the radiator and extrudable connecting channels are provided for connecting the top and bottom headers. The connecting channels may be cut in any desired length to provide the radiator units of selected sizes and radiating capacity but without change in the manner of connecting the connecting units into and with respect to the top and bottom headers. A variety of ways are shown for effecting such connecting as well as for providing appropriate fluid connections to and from the radiator units.

Abstract: A bracket means for supporting at least one heater rod disposed within an open - front housing of an electric radiant heater assembly comprises at least one bracket having an elongate, generally flat, planar brace portion having clip means at opposite ends for removable engagement with the housing. At least one integral support arm located intermediate the ends of the brace portion and disposed normal thereto is provided with an arcuate surface which serves as a seat for the heater rod. The bracket is insertable into the housing through the open front and rotatable to bring the arcuate portion into supporting engagement with the rod and the clips into engagement with the housing. The brace portion is made of a nickel - chrome alloy having spring like characteristics at elevated temperatures.

Abstract: A heat shield for use with freestanding fuel-burning stoves, furnaces, fireplaces and the like, in the form of a modular panel assembly for securance over a wall in spaced relation to said freestanding unit; parallel-spaced, large area, anti-buckling specially-contoured partitions behind the front face of the panel assembly define plural vertical passages layered over the wall for air entering at an intake at the bottom and exiting at an exhaust at the top; louvers at the intake and exhaust align with the respective plural air passages and co-act with the interior partition structure of the invention to produce a sharp thermal gradiant between the front face and any wall protected from a source of heat by the invention, the front face of the panel assembly being hottest, and successive interior partitions and the wall protected being successively cooler as result of convective cooling combined with radiative shielding; special slot and attachment structure further prevents buckling from thermal expansion.