Abstract: Tritiated species, e.g., tritium, tritiated water, and/or tritiated hydrocarbons, are removed from gas streams comprised thereof by reacting the same over a precious metal catalyst with sufficient air or oxygen to convert all tritiated species to tritiated water and, if hydrocarbons are present in the gaseous feedstock, carbon dioxide. The tritiated water and any other moisture that might be present in the reaction effluent are next adsorbed by a desiccant dryer, preferably to a level of less than one part per million. Most desirably, the desiccant dryer effluent is then diluted with non-radioactive water such that the tritiated water is diluted by a factor of at least 1,000 to 1; the resulting water mixture can be adsorbed from the diluted effluent by a second desiccant dryer to provide a value in the ultimate effluent gas of less than about one-half parts per billion tritiated water.

Abstract: Chlorine dioxide solution for use in waste water treatment is produced in an automated small scale plant wherein sodium chlorate solution is reacted with sulphur dioxide at subatmospheric pressure by countercurrent flow in a reaction tower. Water ejectors are used to withdraw gaseous chlorine dioxide from the upper end of the tower and form therefrom chlorine dioxide solution and also to withdraw liquid effluent from the bottom of the tower for discharge. The plant is fully automated to form chlorine dioxide solution in response to inventory requirements. The chlorine dioxide-producing reaction is only permitted to operate if each of a plurality of sensed parameters is within predetermined ranges.

Abstract: An arrangement of separation device is provided such that after centrifugation, for example, the heavy materials at the bottom of the separation container may be directly removed from the bottom without first having to decant or otherwise remove the lighter fraction at the upper end of the container. The arrangement may include, for example, a conventional tube-type container modified to have an opening in the bottom. A specially configured plug or stopper is utilized in combination with the container bottom opening to seal the opening closed, which plug is configured to complete the bottom end of the container and to provide an access septum for needle penetration in the bottom of the container. The arrangement of the plug prevents displacement thereof, once it is properly positioned, and includes specifically, a locking detent to prevent the plug from being displaced inwardly upon insertion of a needle into the plug.

Abstract: Control apparatus and a method for making battery paste by mixing selected quantities of lead oxide, sulfuric acid and water to form a reaction mixture are disclosed. During the reaction portion of the process, the viscosity of the mixture initially descends on a time-viscosity curve, which then changes in slope to reach a point of minimum viscosity. The temperatures of the reaction mixture form a time-temperature curve having a temperature peak therein. The temperature and the viscosity of the reaction mixture are determined respectively by temperature sensing devices and by viscosity sensing devices.

Abstract: A method and apparatus for discriminating between alcohol and acetone in a breath sample and accurately measuring the alcohol level when acetone is present in the sample. The breath sample is measured with two different types of detectors and their outputs compared. One detector uses the principles of infrared (IR) absorption, the other detector is a semiconductor, commonly called a Taguci cell, or its equivalent. Automatic correction is provided for variations in sensitivity of the semiconductor.

Abstract: Closures for fluid sample cups, preferably for blood, according to the teachings of the present invention are preferably formed in a multilayered sheet including a matrix of closures and remaining area located around and between the closures. Specifically, the multilayered sheet includes two sided adhesive tape sandwiched between a layer of adhesive covering paper and a rigidifying layer. An elastic layer is adhesively secured to the rigidifying layer. A matrix of first apertures extend through the tape, the paper layer, and the rigidifying layer, with the material located inside of the first apertures being discarded. A matrix of second apertures extend through the tape and the elastic and rigidifying layers concentric with and of greater radius than the first apertures and which define the matrix of the closures. A matrix of slits are also formed in the elastic layer within the first apertures.

Abstract: A transparent tube for use in the cavity of the rotor of a high speed centrifuge. The tube is penetrable at its bottom end by a needle of a hypodermic syringe. The tube is open at the top and has a rounded bottom with an opening forming a passageway therein. A recess forming a shoulder co-axial with the passageway is provided both on the inner side and the outer side of the tube. A resilient plug having flanges at each end provides a tight fitting closure for the passageway and recesses.

Abstract: An ampoule holder receives a glass ampoule with a collar surrounding the ampoule neck to permit smooth breaking away of the ampoule tip at the collar. A stopper is inserted into the ampoule mouth and a bubbler tube is then inserted through the stopper and mouth into the interior of the ampoule to form a tight seal between the stopper and ampoule. A slit extending through the insertion portion of the stopper forms a vent passage for air flowed into the ampoule through the tube. The connection between the stopper and ampoule forms an integral ampoule assembly with the collar confined between the stopper and ampoule. The assembly may be placed in apparatus for conducting an optical analysis of liquid in the ampoule.

Abstract: A process for evaluating the ionic state of the surface of keratin fibers, especially human hair, which comprises, taking at least one sample of fibers from the fibers to be evaluated, contacting the sample with an acidic solution of at least one acidic basic dyestuff, assessing what, if any, change in the color of the solution has taken place and attributing the ionic state to the surface of the fibers accordingly.

Abstract: A system of four cryogenic fractional distillation columns interlinked with two equilibrators for separating a DT and hydrogen feed stream into four product streams, consisting of a stream of high purity D.sub.2, DT, T.sub.2, and a tritium-free stream of HD for waste disposal.

Abstract: A cartridge for a catalytic ozone converter comprising an aluminum honeycomb core, a tubular metal shell surrounding the core and affixed thereto, metal rib support members fastened to the shell and to the honeycomb core, and a catalytic coating deposited upon the cell walls of the honeycomb core.

Abstract: The disclosed apparatus is of the type in which feed units feed air and hydrocarbon material into a reaction chamber, where they react to form carbon black. A filter then removes the carbon black. Disclosed is the provision of a mixing chamber between the feed units and the reaction chamber. The mixing chambers pass through a demountable hollow reactor cover through which there is circulated a heat transfer fluid for controlling the temperature of the mixing chamber walls. The mixing chamber can be common to a plurality of feed units or be separate for each feed unit.Also disclosed is a feed unit which has a vortex plate, an output nozzle, and a hydrocarbon spray nozzle, all mounted on a hydrocarbon supply tube which in turn is fixed to a demountable cover of the feed unit. This permits these components to be readily removed with the cover for replacement or service. The feed units can also have their temperature controlled by the heat transfer fluid for the mixing chambers.

Abstract: A container having a container tube with a central tube chamber and apertures at both ends with a resilient plug over each aperture, a weir extending into the central tube chamber.The container is useful for drawing blood and labeling it with Tc-99.The container is sterile and sealed at less than atmospheric pressure inside.

Abstract: There is disclosed a prosthesis comprising a prosthetic element and a polymethylmethacrylate film fixedly adhered thereto. The prosthesis comprises a surface adapted to be fixedly attached to bone and bears a polymethylmethacrylate film upon the attachment surface. The polymethylmethacrylate film is adhered to the prosthetic element by a process which comprises treating the prosthetic element surface to eliminate any weak boundary layer, applying polymethylmethacrylate to the treated surface, and thereafter annealing the polymethylmethacrylate film.

Abstract: A pressure controlled vanadium hydride gas generator to provide deuterium-tritium gas in a series of pressure increments. A high pressure chamber filled with vanadium-deuterium-tritium hydride is surrounded by a heater which controls the hydride temperature. The heater is actuated by a power controller which responds to the difference signal between the actual pressure signal and a programmed pressure signal.

Abstract: In a fluidized bed reactor having a reactor vessel, two detector vessels are mounted in the reactor vessel near the inside surface of the reactor vessel in the fluidized bed and in the gas outlet region. Each detector vessel contains larger detecting particles and passes the gas in the reactor vessel. Pressure drop across the detecting particles is measured. The ratio of the two pressure drops represents the ratio of the fluid velocity and minimum fluidizing velocity under the operating conditions and can be used as control factor.

Abstract: A method of determining the alcohol content of air exhaled by a person using a flow through testing tube having an alcohol indicating material therein and a sampling tube to which the air is directed which has a material therein for retaining the alcohol of the breathing air and also using a suction pump comprises cooling the sampling tube, passing the exhaled air through the cooled sampling tube, measuring a volume of the air passing through the cooled sampling tube, heating the sampling tube and connecting the suction pump to the sampling tube to suck flushing air through the heated tube and then through the testing tube. The sampling tube advantageously contains a silica gel to retain the alcohol therein. The volume measuring device may be a measuring bag.

Abstract: A capsule for testing the alcohol content in human breath contains a solid reagent. The capsule is capable of passing a gaseous fluid or liquid in a predetermined quantity for reacting with the reagent. The capsule has a middle part which is almost cylindrical and at least at one end has an orifice for regulating the fluid entering through the orifice and distributing it into the reagent.

Abstract: An apparatus for extracting pulverous or granular material from a mixture means of a solvent brought into contact with the mixtue. A receptacle is provided for receiving the material to be extracted as well as the solvent. A conduit system is connected with the lower portion of the receptacle and empties into the upper portion of the receptacle. Within the conduit system is arranged a device for conveying the solvent to be withdrawn from the receptacle as well as the mixture containing the material to be extracted. The device also serves to mechanically form a dispersion of the material to be extracted in the solvent. The device includes a rotatable body operated at a speed of 10,000 to 30,000 rpm.

Abstract: An apparatus and method are disclosed for automatically monitoring the sodium concentration of a sodium amalgam by means of a wet chemical analysis in which a mineral acid is reacted with a sample of the sodium amalgam to generate an amount of hydrogen gas proportional to the amount of sodium in the amalgam sampled. The amount of such hydrogen gas produced is detected and displayed in units of sodium concentration. A thermal conductivity detector is preferred as the means for determining the amount of hydrogen gas produced.