Abstract: A building deck structure having sheet metal structural shapes of a box section as sub-purlins, the upper face of the box section having open slots for engaging sheet metal clips which are secured in the box section when the axis of the clip and the box section are about 90.degree. to each other, the clip engaging and holding a formboard-insulation assembly adjacent the top face of the box section and providing a bearing surface for deck supporting shapes for attachment of sheet polymeric structural weather surface to provide uplift resistance to the composite structure. The deck structure of this invention is extremely versatile providing a very economical insulating deck structure which is particularly suited to solar energy absorption and skylights over large areas. The combination structure of this invention permits the use of thinner formboard and lightweight plastic structural weather surface, providing lighter weight insulated and solar energy absorbing decks than previously available.

Abstract: Free standing fire place assemblies having an interchangeable mantel member adapted for mating with a fire box member for achieving different design configurations.

Abstract: An automatic ice maker includes a heat pipe in the form of a sealed tube containing a refrigerant which extends from the freezer compartment to the fresh food compartment of a household refrigerator. Positioned within the heat pipe and located intermediate the freezer and fresh food compartment is a valve preferably in the form of a steel ball which is periodically unseated from an annular valve seat by a rotating magnet actuator mechanism. The portion of the heat pipe within the fresh food compartment is positioned within a water reservoir and is also insulated but for an ice-making surface thereof. When the check valve of the heat pipe is open, heat transfer thereto to the freezer compartment is enhanced to cause a clear ice cube to be formed on the uninsulated ice-making surface of the submersed heat pipe. When the check valve closes, the heat of the surrounding water will harvest the ice cube by releasing same to float to the top of the reservoir for collection and storage by conventional means.

Abstract: A structural tank for carrying cold fluids includes a cylindrical portion and hemispherical heads. The tank is horizontally structurally supported by the heads. The cylindrical portion carries an outside vacuum insulation shell and a vacuum insulation shell is placed inside of the structural heads.

Abstract: A solid wick lighter is constructed for use in lighting hearth grate supported logs.

Abstract: An infrared receiver having a thermal conductive device for providing continuous thermal contact between a detector cooling means and an IR detector is disclosed. The thermal conductive device is bellows shaped and constructed from laminated layers of copper, nickel and copper or other suitable materials having the necessary thermal conductivity and elasticity at operating temperatures.

Abstract: A humidity and temperature responsive device having a temperature sensor provided with a part that moves upon changes in sensed temperature and having a humidity sensor that is provided with a part that moves upon changes in sensed humidity. A tension spring interconnects the movable parts together so that the same act together to vary a bleed valve arrangement so that the output pressure of the device can be utilized to indicate enthalpy or operate control devices to select air with high or low enthalpy.

Abstract: A forced air home heating system includes a prefabricated metal fireplace having a combustion chamber surrounded by a heat collection distribution chamber. The fireplace distribution chamber functions as the central distribution chamber for the forced air home heating system to which air is supplied from a furnace or other heat source and from which it is distributed throughout the home. If there is a fire in the fireplace, fireplace generated heat then supplements or replaces heat from the primary home heating source in the forced air system.

Abstract: A filter hood device containing a gas treating filter and having a clean gas outlet aperture which is closed by a blank diffuser mounting panel. The blank diffuser mounting panel is adapted to be modified at a jobsite to receive a diffuser which is suitable for the requirements of that jobsite.

Abstract: An adjustable air deflector condensate directing tray and food receptacle shelf support cover for a refrigerator cabinet shelf. The cover includes side flanges, spaced to depend between shelf longitudinal openings, with the flanges having opposed trackways for receiving outwardly flared receptacle top flanges. The tray is releasably retained in the opposed trackways allowing same to initially protrude rearwardly of the removed shelf. Upon the cover and tray being assembled with the shelf and the shelf assembly being installed in the cabinet, tray stop members contact the cabinet rear wall to telescope the tray in the trackways thereby compensating for cabinet liner rear wall out of plane undulations providing a baffle for directing refrigerated air into the receptacle while condensate collected thereon is directed to the cabinet liner rear wall.

Abstract: A four cylinder in-line engine is disclosed with a secondary balancer system, wherein at least one pair of balancer elements are arranged substantially at an identical horizontal distance from the longitudinal axes of the engine cylinders and on lines which are substantially parallel to the plane of the longitudinal axes. The distance taken between the axes of the paired balancer elements in the direction of the cylinder axes is determined at such desired values as to satisfy the engine usage and design. The paired balancer elements are rotated in the opposite directions to each other with a speed of rotation twice as high as that of the engine crackshaft, such that the lower balancer element is rotated in the opposite direction to that of the engine crackshaft.

Abstract: A system for extracorporeal perfusion of human organs wherein a pulsatile flow of cold perfusate is circulated through an organ intended for transplantation. The system includes a perfusion chamber, a heat exchanger comprising an ice water bath containing a coil of tubing through which perfusate is circulated, and a pulsatile pump interposed in the line between the heat exchanger and the perfusion chamber, downstream of that exchanger, for drawing cold perfusate through the exchanger and directing it in a series of regular pulses to the organ. The system is particularly adapted for use in a compact portable perfusion unit.

Abstract: An asphalt kettle having a heating chamber therein for the receipt of asphalt and a three-dimensional closure secured over the chamber. The side walls of the closure are provided with chute-like openings through which asphalt chunks may be loaded into the chamber and these openings are provided with hingedly mounted interior doors which normally assume a closed condition under the influence of gravity and/or the creation of a high pressure condition within the chamber. The closure may lift, within limits, in the event of an explosion in the chamber and a deflection skirt is provided to downwardly direct gas and debris in such event. An induction pipe is connected between the closure and a gas inductor in the stack for the kettle. The pipe is provided with a heat sink to prevent flash-back from the stack into the interior of the kettle chamber.

Abstract: A combination stove-fireplace assembly. A hood with a damper therein is movable vertically from a position wherein it is spaced from the assembly base -- wherein the assembly may be used as an open fireplace -- to a position in sealing engagement with the base -- wherein the assembly may be used as a stove or for "charcoaling". A sand-filled trench is provided at the base for insuring an air-tight seal between the base and the hood. Operating means for raising and lowering the hood include a crank exterior of the assembly positioned for ready access, and a means for locking the hood into the desired position to which it is raised. An ash bin is readily removable from underneath the firebox.

Abstract: A device for cooling bulk material by low-boiling liquefied gas includes a precooling zone and a spraying zone. The precooling zone is inclined from the horizontal downwardly toward its discharge end to which is attached a rotatable drum-shaped chamber as its spraying and draining zone which is constructed as a worm conveyor. Where used for scrap tires, a spray pipe is provided at the discharge end with a ring mounted on the internal wall between the spray orifices and the discharge opening, the ring having a thickness corresponding to the average tire thickness.

Abstract: An electrical grounding clip for grounding the outer casing of a room air conditioner to the base pan of the chassis in a manner to assure positive grounding contact upon the chassis being slidably inserted within the casing. The clip includes a U-shaped body portion forming two leaf portions normally oriented at an outwardly diverging angle, the casing engaging leaf being formed with a pair of spring legs and a cooperating lanced portion for engaging a pair of cooperating openings in the lower wall of the casing. The chassis engaging leaf portion includes an upwardly extending central cone having a sawtooth-like edge for resilient biased grounding connection with the chassis base pan.

Abstract: A fuel insertion door forms a portion of the top of a fire box of a wood burning stove. The stove additionally includes a viewing door which closes to cover an opening in the front of the fire box. When the fuel insertion door is closed, a tab extending therefrom overhangs the front of the fire box to maintain a closure of the viewing door.

Abstract: An expansion device for use in a reversible vapor compression refrigeration cycle for producing, upon demand, either heating or cooling. Two devices are mounted in opposed relationship in a supply line carrying refrigerant between a first heat exchanger and a second heat exchanger. Each expansion device includes a body having a flow passage therein opening into an expanded chamber. A free-floating piston is slidably mounted in the chamber and is moved to a first position when refrigerant is passed through the line in a first direction and to a second position when the direction of flow is reversed. A centrally located metering port passes through the piston while fluted channels are formed in its outer periphery. When in the first position, the fluted channels are closed against one side wall of the chamber and refrigerant is throttled through the metering port from the high pressure exchanger (condenser) into the low pressure exchanger (evaporator).

Abstract: A portable food preparation apparatus including deep stainless steel cooking pans on a support and means provided on the cooking pan bottoms to distribute heat and alleviate warping of the stainless steel pans.

Abstract: Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint attached to the collector end of the rotor. A relative-motion gap about the bayonet has its inner and outer diameters reduced in size near the outlet end of the bayonet. The gap thus stepped downward in size extends into a core of boil-off coolant within the rotating conduit, preventing liquid coolant centrifugally forced against the inside of the conduit from entering the gap, and allowing only boil-off coolant to enter.