Abstract: An improved ventilator monitor and alarm apparatus includes circuit means for actuating the apparatus in response to sensed pressure in a ventilator circuit.

Abstract: An improved container comprising a frame and a flexible receptacle secured thereto includes bracket or hook means for being secured substantially entirely within the space between opposite leg members in a walker.

Abstract: An improved applicator for applying a liquid composition comprises a flexible base member having a plurality of integral alternating first and second protuberances the first protuberances having a concave cup of dimensions for holding and retaining a drop of liquid when the applicator is held upside down and second protuberances having a convex-shaped surface, the protuberances being of substantially the same diameter and projecting substantially the same distance from a planar surface.

Abstract: A process for treating radioactive contaminated soils to remove radioactive metal oxide contaminants therefrom comprises creating a suspension of particles of the soil in a column of water, alternately forcing fresh water in the column upwardly to force ligher soil particles upwardly in the column and allowing heavier particles to gravitationally settle in the bottom of the water column. The heavy particles comprising radioactive metal oxides are collected and handled for radioactive waste material storage. The aqueous slurry of lighter soil particles is directed to a separator for removing substantial amounts of water after which the particles are directed to a conveyor and spread out to a substantially uniform thickness and detected for any radioactivity. Portions of material in which radioactive particles are detected ar diverted and the uncontaminated soil material is recovered.

Abstract: A coating composition consists essentially of a major amount of light mineral oil and a small amount of eucalyptus oil, preferably between about 0.01 and about 1%, by volume.

Abstract: An improved method of disposing of radioactive or hazardous liquid aqueous waste compositions having a substantial amount of dissolved solids comprises mixing the liquid under a high mechanical shear with a clay selected from the group consisting of attapulgite, sepiolite, and mixtures thereof. Water soluble or miscible organic liquids as well as liquid hydrocarbon mixtures thereof may also be solidified by utilizing the aforesaid clays together with an organic ammonium montmorillonite having at least 10 carbon atoms, the amount of montmorillonite used being proportional to the amount of liquid hydrocarbon present.

Abstract: The present invention is an improved method and apparatus for condition sensing and displaying a numeric value associated with the sensed condition wherein the improvement comprises (1) circuitry calibrating the display of the numerical value associated with the sensed condition to a numerical value associated with the sensed condition in a normal ambient environment, while the sensor is within the normal ambient environment; and (2) circuitry for calibrating the display of the numerical value of the sensed condition to a numerical value associated with the sensed condition in a known offset environment which is different than the normal ambient environment, while the sensor is in the known offset environment.

Abstract: An improved method of disposing of radioactive or hazardous liquid hydrocarbon compositions comprises placing the liquid hydrocarbons in a container and adding an organic ammonium montmorillonite in ratios of between about 1:2 and 3:1, by volume, respectively. The organic ammonium montmorillonite has at least 10 carbon atoms. A polar organic compound having between 1 and about 10 carbon atoms is also preferably added with the montmorillonite. Where the liquid waste material includes 5% or more of water in addition to the liquid hydrocarbon a minus 200 mesh sodium montmorillonite is also preferably added.

Abstract: An improved method of disposing of radioactive or hazardous liquids comprises placing the liquids in a container and adding a sodium montmorillonite over intervals until the composition is substantially solid in the container.

Abstract: An oxygen concentrator having one or more molecular sieve beds for selectively adsorbing nitrogen from atmospheric air for increasing the oxygen concentration of a product gas, a reservoir for receiving the product gas, a surge tank, a compressor for charging atmospheric air to the sieve beds and surge tank and a valve and valve switching means for directing atmospheric air from the compressor to the sieve beds and surge tank includes means for sensing the withdrawal rate of product gas from the reservoir and a microprocessor having means for switching the valve for charging the surge tank for a miniumum time required to achieve a product gas having a selected oxygen concentration at the sensed rate of withdrawal.

Abstract: A device for protecting the eyes of a horse from insects comprises a cover member composed of a plurality of panels which cooperate to form an arched bubble spaced from the horse's eyes with the edge of the device lying around the front of the head below the ears and across the muzzle. The panels are made of a net-like material through which the horse can see, but which prevents insects, particularly flies, from entering the device.

Abstract: A batch method of producing asphalt-aggregate composition having a temperature of at least about 200.degree. F. and at least about 20% used asphaltic concrete comprises heating solid particles of the used material in a first drum to a temperature of at least about 150.degree. F., separately heating virgin aggregate in a second drum to a temperature of less than about 400.degree. F., and mixing the two materials, preferably with the addition of hot liquid or paving grade asphalt. In a second embodiment, unheated used asphaltic concrete is mixed with heated used asphaltic concrete and heated virgin aggregate.

Abstract: An improved elongated blade or blade spar comprises successive low-pitch circumferentially wrapped convolutions of a synthetic resin impregnated tape having elongated cut glass and substantially parallel and equal length filaments wherein successive convolutions are overlapped approximately 50% and wherein the axis of the elongated strands lie at an angle of less than 30.degree. from the elongated spar axis. Preferably, resin impregnated filamentary strands are circumferentially wrapped around the mandrel substantially parallel with the direction of the tape wrap between selected tape layers. The improved blade spar mandrel wrapping apparatus includes a split ring support for the mandrel and through which the mandrel extends. The support ring halves may be separated, moved and rejoined during the mandrel wrapping process.

Abstract: A condition monitoring system such as a hospital oxygen monitoring and analyzing device which is battery powered and of such low current drain circuitry that the monitor may be maintained ON continuously. The circuitry senses battery condition when the end of battery life is approaching as indicated by terminal voltage drop. The circuitry continues to provide an accurate display but also indicates a part of the display and additional symbol. The circuitry provides a separate indication under calibration conditions, and the improved voltage regulator includes a transistor back biased to breakdown as the regulation device. A remote sensor is used and engaging the sensor with the unit, automatically powers all circuitry.

Abstract: In a process for producing asphalt-aggregate composition in which used asphaltic concrete is recycled by being heated and mixed in a rotatable drum into which flame and hot gases of combustion are directed, the improvement comprises introducing virgin aggregate in a hot zone of the drum and directly exposing the aggregate to the flame and/or hot gases of combustion, and introducing particles of asphalt-aggregate composition downstream from the hot drum input end, away from direct exposure to the flame and extremely hot gases, in a cooler temperature zone. An improved apparatus includes means for introducing the aggregate at the input drum end for direct exposure to the flame or hot-test gases, and means for introducing the used and recycled asphalt-aggregate composition in a cooler drum zone.

Abstract: In a process for producing asphalt-aggregate composition in which used asphaltic concrete is recycled by being heated and mixed in a rotatable drum into which flame and hot gases of combustion are directed, the improvement comprises introducing virgin aggregate in a hot zone of the drum and directly exposing the aggregate to the flame and/or hot gases of combustion, and introducing particles of asphalt-aggregate composition downstream from the hot drum input end, away from direct exposure to the flame and extremely hot gases, in a cooler temperature zone. An improved apparatus includes means for introducing the aggregate at the input drum end for direct exposure to the flame or hot-test gases, and means for introducing the used and recycled asphalt-aggregate composition in a cooler drum zone.

Abstract: The present invention consists of a pre-made reinforcement device having a core for receiving a prosthetic crown. A vertical axis, horizontal plane anti-rotational device interconnects the post-and-core and is positioned within indexing recesses extending from a hole in the pretreated tooth. An advantageous locking of the reinforcement device results from the post, core and antirotational device combination.