Abstract: A method for pelletizing liquid and viscous products. A body of the liquid or viscous material is enclosed within a chamber having discharge orifices or nozzles at the bottom of the body of liquid. There is a body of gas above the liquid which is subjected alternately to increased and decreased gas pressures so that the pressure on the body of liquid is first above and then below atmospheric pressure. That causes the product to be discharged from the orifices in droplets. The droplets are then solidified to form pellets. A predetermined liquid level is maintained within the chamber. The changes in gas pressure are produced by operating a valve which connects the body of gas in the chamber alternately to a suction line and supply line for gas under pressure.

Abstract: A metering arrangement for dispensing a predetermined quantity of product each time the dispensing valve of a pressurized container is operated. A flexible wall feed tube within the container is connected to the valve inlet, the tube having a restriction therein. Operating the dispensing valve reduces pressure in the tube, because of the restriction, to dispense the quantity of product, and to cause the tube wall to collapse and create a seal. When the valve is released, the pressure on the inside and outside of the tube equalizes by flow through the restriction.

Abstract: A tool is provided for applying adhesive material to a surface. The tool utilizes a cartridge of heat-softenable, thermoplastic material which is positioned in a chamber of the tool. Air under pressure at the rear end of the chamber is applied directly to the rear of the cartridge to urge it toward a heat block located at the forward end of the chamber. That portion of the adhesive material in contact with and near the heat block is softened and flows through passages in the block and past a check valve to a nozzle from which the softened adhesive is directed to the surface. The heat block has a plurality of radially-extending fins which are designed to concentrate heat at the center of the cartridge. The tool features a sleeve of plastic material in the cartridge chamber adjacent the heat block, which sleeve is isolated from the rear portion of the chamber to minimize the conduction of heat toward the rear.

Abstract: A disposable laboratory device for transfer of fluids, such as biological fluids or reagents, to specific wells of a centrifugal analyzer head. The device itself is a disposable, multi-compartmental system within an arcuately extending enclosure. In the preferred embodiment, the enclosure extends in a circular arc of approximately 120.degree., whereby one-third of the wells arranged around a circular centrifugal analyzer head can be filled with a single manipulation. Each of the compartments is preferably trapezoidal in plan view, with a bottom surface that includes an outlet means for each compartment proximate radially innermost portions of the enclosure. Equal volumes of pressurized gas distributed to each of the compartments exactly dispense equal volumes from each of the compartments into wells in a circular analyzer head which is held in a registration position.

Abstract: A rechargeable dispensing apparatus, particularly suitable for use as a fire extinguisher, includes a generally spherical, enclosed dispensing container adapted to receive a liquid extinguishant therein, and has a flexible pickup tube shiftably confined therewithin which is provided with a weighted orifice for maintaining the latter at the bottom of the container below the level of remaining liquid within the container, whereby to allow continuous dispensing of the extinguishant in spite of tilting or turning of the apparatus by the user during the dispensing operation.

Abstract: A mounting cup for aerosol valves comprising a cupola member having an annular base, means provided said cupola for receiving an aerosol valve, a cylindrical shoulder integral at its bottom edge with the base of said cupola member and concentric with the side of said cupola member so as to form an annular space between said cupola member and said annular shoulder, a ring collar integral with the top edge of said cylindrical shoulder, the peripheral edge of said collar being downwardly curved to define an annular channel, a groove at the circumference of said cylindrical shoulder formed by an inwardly arched portion of the wall of said cylindrical shoulder, said groove being positioned substantially opposite said downwardly curved portion of said ring for receipt therebetween of a ring packing.

Abstract: A self-threading container closure for a spiral wound tube useful as a container for fluids under pressure. The closure insert includes side threads in conjunction with a spherical arch and support legs. The threads permit the insert to be screwed into the walls of the tube and allow the spiral wound media to form around the closure in a liquid and pressure tight seal. This seal is enhanced by a transfer of outward fluid pressure on the spherical arch through the support legs to the threads and container walls.

Abstract: A manipulative laboratory device for transferring biological fluid from one or more primary containers to an associated secondary set of containers through a disposable closed compartment system. The compartment system allows for greatly simplified decanting procedures, for example, in pouring off serum samples in blood analyses. The transfer device is preferably of transparent plastic material, and allows for complete isolation among respective samples and selective transfer of controlled volumes of biological fluid when combined with a pump, through means to apply equal volumes of pressurized gas to each of the compartments. The transfer device allows, serum, for example, to be held and filtered during transfer, while maintaining the serum within a closed compartment to reduce the risk of hepatitis and similar infectious transmissions to operating personnel.

Abstract: A tool is provided for applying adhesive material to a surface. The tool utilizes a cartridge of heat-softenable, thermoplastic material which is positioned in a chamber of the tool. Air under pressure is applied directly to a rear portion of the cartridge to urge it toward a heat block located at a forward end of the chamber. That portion of the adhesive material in contact with and adjacent the heat block is softened and flows through a central discharge passage in the block and past a check valve to a nozzle from which the softened adhesive is directed to a surface to be bonded. The heat block is designed to apply more heat to a central portion of the forward end of the cartridge than to a peripheral porton, in order to promote flow of the heat-softened material toward the discharge passage from the peripheral portion of the cartridge.

Abstract: The present invention relates to a device for protecting a person from attack from an assailant wherein the device is worn on the person in such manner that it is always available for instant operation for defense without the necessity reaching into a pocket or hand bag to thereby enhance the safety of the user.

Abstract: An aerosol dispenser including an outer casing, a product containing bag within said casing and sealingly secured thereto at a point of interconnection between the casing and a cap carrying a dispensing valve. Pressurized propellant is disposed between the casing and the bag.

Abstract: A method for installing a sheet of surface covering material on a substrate surface comprising depositing a quantity of a foamed adhesive to the substrate surface, laying the sheet on the adhesive, applying pressure to the sheet so as to spread the adhesive and cause the adhesive to conform to any irregularities of the substrate surface, and allowing the adhesive to dry, thereby bonding the sheet to the substrate surface. Also disclosed is a packaged foamable adhesive for use with this method.

Abstract: An aerosol spray valve of the type which utilizes a reciprocable plunger moving within a valve housing that is in turn mounted to a cover member. The cover member is adapted to be crimped to a canister and has a dip tube extending from the interior of the valve housing to the bottom of the canister. Pressurized product is forced from the interior of the canister through the dip tube into the valve housing and out of the cover member through a central hole into a sprayhead that is mounted in the hole. An annular elastomeric gasket surrounds the hole and the upper end of the reciprocable plunger forms a valve seat that is spring-biased against the underside of the gasket to prevent pressurized product from emerging. The sprayhead has an associated stem that enters a socket formed in the plunger, the stem being slidably and sealingly engaged through the hole and the passageway in the elastomeric gasket. The stem is imperforate.

Abstract: A fluid-operated hypodermic syringe for injection of medicinal fluids into livestock, which is adapted to successively and automatically pump out of a container a predetermined quantity of medicinal fluid and to inject it into one animal each. Means are provided to regulate the depth of the needle penetration.

Abstract: Disclosed herein is an aerosol package and method using this package for dispensing substances in spray form and depositing them on a desired limited surface area in the form of a buttery, liquescent solid. The aerosol packaging contains an anhydrous, oleaginous base containing specified fats or waxes and a propellant miscible therewith.

Abstract: A device for transmitting equal amounts of liquid simultaneously to a plurality of locations. An airtight enclosure has a bottom wall formed with a plurality of inwardly opening wells of equal volumes all having bottom openings through which liquid can flow out of the wells. A plurality of exteriorly located liquid-transmitting tubes communicate with the wells through the bottom openings, these tubes respectively having in their interiors valves which automatically close the tubes in response to suction in said interior space of the enclosure while opening said tubes in response to greater than atmospheric pressure in the interior of the enclosure.

Abstract: A dispensing valve for carbonated beverage bottles having means for connection of the valve body to the bottle neck in place of its closure cap, and comprising a flexible tube extending therethrough and arranged to pass down into the bottom of the bottle at one end and to extend to the outside of the valve body as a dispensing spout at its other end. Mechanism within the valve body normally squeezes a portion of the flexible tube passing therethrough into collapsed, cut-off or sealing condition, subject to push-button actuation operative to release the tube for manual controlled dispensing of the pressurized fluid through the spout. The bottle connection means includes resilient washer mechanism for sealing the tube with respect to the valve body, thereby preventing pressurized fluid or gas leakage between the tubing and the valve body.

Abstract: An aerosol container having a body formed of substantially circular cross-section at the upper end and gradually tapered intermediate the ends thereof and merging with a substantially V-shaped trough at the lower end.

Abstract: A liquid chemical storage and dispensing unit is disclosed in which a mobile cart supports upper and lower groups of pressure sealable storage tanks containing liquid chemicals. Conduits couple a pressure distributing gas manifold to the upper tanks. Tank pairs comprising one tank each of the upper and lower groups are serially coupled by conduits of equal effective internal dimension extending between an open end within a lower region of the upper tanks and inlet fittings on the lower tanks. An open end in the lower tanks communicates liquid chemical therein via conduits of equal effective internal dimension to a nozzle receiving liquid chemical collecting manifold. A plurality of tank pairs are thereby coupled in parallel between the gas manifold and the liquid chemical collecting manifold providing simultaneous emptying of the tank pairs at an enhanced potential liquid chemical flow rate. In operation, tanks are individually filled with liquid chemical and the cart is transported to a point of use.

Abstract: Apparatus for mixing fluent materials, especially components for foundry molding compositions, affording a pluralities of containers feeding serially one to another or in parallel discharging to a common acceptor, for batch or continuous operations, permitting simultaneous mixing of all components, either all brought together at once or, as for reactive component mixing, in parallel diverse component group mixing flows, joined for final mixing bringing the reactive components together; and an agitated shooter injector vessel receiving the mixed material, pneumatically actuated to expel material into a mold or the like.

Abstract: Container holding fluid to be dispensed if pressurized by rupturing cartridge containing liquefied gas located within flexible pouch inside the container, preferably by heating the container.

Abstract: A glass container is molded with a recessed outlet end having a sharp outer edge and an enlarged lip. The outside surfaces of the lip of the container from a point adjacent the recessed opening are straight in part and convexly shaped in another part and terminate in a portion of reduced diameter at the neck of the container. A closure assembly centrally housing an aerosol "or pump-type" valve is formed with a depending flange, an annular stepped portion adjoining the central housing, and a concave surface portion connecting the stepped portion and the depending flange. A liquid elastomeric resin lining is flowed onto the concave surface and depending flange portions and cured to form a resilient liner. The closure assembly is then mounted upon the recessed open end of the glass container forming an inwardly diverging channel between the recessed outlet and enlarged lip of the container on the one hand and the stepped and concave portions of the closure assembly on the other hand.