Abstract: A device for thawing and warming solutions and biological fluids intended for perfusions or intravenous administration contained in sealed bags comprising a cabinet, tray mounted at the top of the cabinet for holding the bags to be thawed and/or warmed, air channels, forming a raised rim around the tray cover and communicating with the interior of the cabinet, a plurality of apertures horizontally disposed in the air channels and above the tray substantially surrounding the tray and communicating with the interior of the air channels. Air heating and impeller, a temperature sensing device, and controller device mounted in the cabinet; a plenum communicating with the air heating and impeller device for receiving the heated air, outlets in the plenum disposed in such manner as to discharge the heated air over the tray containing the bags and be taken in through the apertures in the air channel for recirculation.

Abstract: A cordless electric hair dryer and stand are provided in which the portable hair dryer unit has a rechargeable battery and a thermal heat reservoir. The fan blows ambient air over the thermal reservoir in heat exchange relationship to expel hot air from the dryer when in use. The stand has an electrical circuit inductivley coupled through a coil in the base of the stand to a coil in the rear of the housing of the dryer which provides power to charge the rechargeable battery in the handle of the dryer and to heat the thermal storage medium in the dryer. The heating is accomplished by resistors mounted in heat exchange relationship with the thermal reservoir material. The rechargeable battery is used only to run the fan during drying operation of the portable unit.

Abstract: A heating apparatus for heating thermoplastic packaging materials to allow the materials to be heat-sealed, formed, or reformed includes two nozzles which supply heated air to the packaging materials, a suction box which sucks the heated air away from the packaging materials after the air has heated the materials, and a recirculation duct which recirculates the heated air from the suction box back to an intake of the nozzles.

Abstract: An apparatus for heating the inner cylindrical wall of a device, such as a bearing, gear, sprocket, coupling, sleeve, or the like, for expanding the cylindrical wall to facilitate the installation of the device on a receiving element includes a source of heated air coupled to an elongated cylindrical air distributor having an outer diameter small than the inner diameter of the cylindrical wall. Adjustable supports position and align the air distributor and the device to allow distributor to be inserted into the device with their central axes substantially coaxially aligned so that an annular space is created therebetween into which heated air is communicated from the distributor through a plurality of opening on the distributor. Annular baffles on the distributor close the opposite sides of the annular space while allowing exhaust of sufficient heated air to prevent undesired pressure buildup in the space.