Abstract: A control system for a particle detector for detecting particles of blood components in an electrolyte employs sets of cams mounted on one-way clutches, which are positioned on a shaft of a motor. When the shaft is rotated by the motor in a clockwise direction, one set of cams moves together with the shaft, and when the shaft is rotated in the counterclockwise direction, another set of cams rotates in the counterclockwise direction. The rotation of cams controls movement of pistons which, together with cavities, form syringes and valves interconnected with passages. The valves and syringes are operated in sequence to prepare a specimen for measurement, to perform the measurement, and to clean up and purge the system between measurements.

Abstract: A device providing a reception surface for shoe soles to be disinfected, beneath which is an element impregnated with a disinfection liquid, the complete assembly being contained in a shallow tray or reservoir which is placed on the ground or embedded in this latter. The tray or reservoir (1) contains a certain quantity of disinfection liquid (4) and above the level of this liquid is a rigid plate which bears on the bottom of the tray or reservoir, for example by means of spacer members or ribs (7). The impregnation element consists of a sheet (9) of porous material stretched over and supported by the rigid plate (5a). At least one of the edges of the sheet dips into the disinfection liquid contained in the tray or reservoir (1) and serves as a capillary wick to impregnate the sheet with disinfectant. A perforated covering element (11) covers the impregnation sheet (9) so as to constitute the receiving surface for the shoes to be disinfected.

Abstract: A sterilizer for medical or dental instruments utilizes a reservoir of reusable heat transfer beads, a preselected quantity of which are released into an instrument tray containing instruments to be sterilized. The tray and beads are positioned within a heating column for sterilization and the tray with beads is thereafter removed to the top of the column for instant utilization. The beads are released through the bottom of the tray into the reservoir for reheating.

Abstract: A collecting apparatus for the collection of pinworm eggs incorporates a shaft surrounded by an adhesive strip. A tab is disposed at the free end of the adhesive strip. The shaft is attached to a gripping member by a connecting member.The gripping member is preferably a threaded screw cap suitable for use with a storage tube. The shaft and connecting member are placed within the tube and the tube is sealed with the gripping member for transportation and storage of collected eggs. Once a specimen is collected, the tab of the adhesive strip is used as an anchor. Using the gripping member as a tool in a rotating fashion, the entire adhesive strip is rolled onto a microscope slide without disturbing any specimens on the strip.

Abstract: A high pressure spray injector having an injector body with an interior cavity and a pedestal located within this cavity, the pedestal having an interior cavity and firmly attached to the bottom of the injector body. Coaxial with the injector body and the pedestal is an annular piston having an end cap and an interior cavity within. The annular piston is in sliding contact with the injector body and the pedestal. A stationary piston is coaxially located within the annular piston and also has an interior cavity. At the end of the stationary piston is a nozzle with an orifice. The annular pistion is also in sliding contact with the stationary piston. A pintle rod is located within the stationary piston to open and close the orifice in the nozzle. As the annular piston is caused to move upward, a fluid is injected in the top part of the annular piston and the interior of the stationary piston.

Abstract: A rectangular waveguide is provided in communication with a microwave generator, and an irradiation furnace formed in its top wall with a slot is provided in communication with the rectangular waveguide. Ampules having only lower portions inserted through the slot into the irradiation furnace are transported by conveyor means along the slot. A depth of the irradiation furnace and/or a distance between the ampules and a surface of the slot may be adjusted to control sterilizing effect for medical fluid filling the ampule.

Abstract: A gas sensing device has a sampling chamber for containing a gas to be sensed, with a gas sensing element with the chamber for providing an output signal which varies in response to the presence of the gas in the chamber. An orifice, or other restriction, permits gas flow between the interior and the exterior of the chamber and a pump, e.g. in the form of a heater, displaces a sample of the gas through the restriction into the interior of the chamber for sensing by the sensing element and subsequently displaces gas from the interior to the exterior of the chamber.

Abstract: A smell sensing element and a smell sensing device utilizing the element. The smell sensing element has a semiconductor portion formed mainly of SnO.sub.2. The semiconductor portion has a first component of at least one selected from the group consisting of oxides of alkaline earth metals and a second component of at least one selected from the group consisting of oxides of Sc, Y, Ti, Zr, Hf, Th, Al, Ga and lanthanoids added thereto.

Abstract: Contact lenses are disinfected by utilizing an N-alkyl-2-pyrrolidone as the microbicide. The efficacy of prior art microbicides such as chlorhexidene gluconate are enhanced by the addition of the pyrrolidones of this invention. The pyrrolidones suitable for use in the practice of this invention are the C.sub.8 -C.sub.20 N-alkyl-2-pyrrolidones. Preferably the alkyl moiety is octyl, decyl or dodecyl. The pyrrolidones can be utilized in solution or made available as a water soluble tablet.

Abstract: The invention relates to a portable detection kit including a number of detection strips and at least one device for breaking reservoirs within the detection strips. The detection strips detect and identify chemical air contaminants and comprise a holder. The holder has a plurality of spaced carriers which are capable of absorbing the air contaminants and optionally comprise reagents which can be influenced by the air contaminants. The holder further has a plurality of color-producing agents opposite to the carriers. The agents, in contact with the absorbed air contaminants or with the reagents, can cause a color reaction in the presence of a liquid. The color-producing agents, which are dissolved in the quantities of liquid required for the color reaction, are held in closed reservoirs having easily breakable walls.

Abstract: Apparatus is disclosed for quantitatively analyzing a gaseous mixture for its components. A predetermined volume of a gaseous mixture of combustion products component is collected in a gas mixer up to a preselected pressure. A portion of the mixture is discharged successively through the tubular column and a sample chamber for a predetermined time period with the mixture being initially at the preselected pressure in the volume means. Detection of delayed output of gas constituents from the column provides an analysis of constituents. The apparatus further comprises a furnace, a magazine for holding the plurality of test samples, a transfer device connected to the furnace for sequentially transferring a successive sample from the magazine to the furnace, and a furnace seal integral with the transfer device for temporal sealing of the furnace from ambient atmosphere after the sample is transferred to the furnace until subsequent transferral.

Abstract: A method of using photoactive semiconductors to reduce atmosphere chlorofluorocarbons by dispersing photoactive semiconductor particles, namely titanium dioxide, zinc oxide or zinc sulfide into the stratosphere, activating the particles through exposure to ambient light, accumulating chlorofluorocarbons by chemisorption into the semiconductor, precipitating the reacted particles from the stratosphere and hydrolyzing the chlorofluorocarbon moiety into involatile components.