Abstract: A male fluid control member for controlling aspiration flow is insertable in a standard female receptacle having an interior cylindrical recess including a vent line leading to the recess. The male member includes an open end intruding into the recess in the female receptacle and filled by a protruding resilient gasket having a central orifice. The end recess is in communication with an interior chamber that extends along the aspiration fluid flow path, but is sealed therefrom by a hydrophobic membrane of substantial cross-sectional area. In operating position the orifice in the gasket in the male member is aligned with the vent line and the gasket and membrane seal the conduit thus formed from external sources of contamination. The opening in the gasket diverges in the direction toward the membrane which, together with the interior chamber, has a substantial cross-section.

Abstract: In a preferred embodiment an improved faucet proportioner includes a plate for defining a first stream of water together with additional curtain streams of water adjacent the first stream. The first stream is directed into a venturi for pulling a second liquid, like detergent or sanitizer, while the curtain streams flow alongside outside of the venturi, but within the proportioner. The streams first contain any splash or splatter of the first stream at the venturi mouth, and secondly the streams enhance the venturi drawing action of the first stream upon joining the first stream as it flows out of the venturi discharge opening. The enhanced venturi action of the first stream effectively draws the second liquid into the first stream, yet the proportioner does not require any porous obstruction downstream of the venturi which might clog or retain detergent or sanitizer and release it when only pure water is desired. Methods are included.

Abstract: A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed and to drive rotor shafted to a spur gear which drives an agitator for keeping the concentrate in the tank stirred-up, with a manual input for initially stirring-up or agitating the concentrate. An indicator is provided on the manual drive to show that the agitator (and hence the rotor) is operating. An aspirator or jet pump receives the liquid or water downstream of the rotor and the input aspirator or vacuum line from the concentrate or tank passes through a ball check valve which has an indicator coupled thereto for indicating the flow of concentrate from the tank to the jet pump to be mixed with the water. A valve with predetermined controls the degree or ratio of concentrate.

Abstract: A device for the automatic selection of the mobile phase to be sent to a chromatographic apparatus, particularly HPLC. The reservoirs containing the different fluids are connected to the lateral channels of a single manifold through solenoid valves controlled by the central processing unit (C.P.U.) of the chromatographic apparatus.

Abstract: Liquid admixing means for a dental oral water-injection system are provided for introducing an additive liquid from a reservoir through an additive tube into a water conduit in the water-injection system wherein a valve in the additive tube can be opened and closed remotely by manually operable means.

Abstract: The invention relates to a method and a device for producing and dispensing extinguishing fluids mixed with adjuvants. The adjuvants are drawn in by suction in a metered manner and fed to a suction or intake pipe of an extinguishing fluid pump. A partial volume of the extinguishing fluid proportional to the quantity of extinguishing fluid conveyed in the delivery pipe is withdrawn from the delivery pipe. A negative pressure is generated thereby, by means of which the adjuvant is drawn in by suction and mixed with the extinguishing fluid. The extinguishing fluid mixed with additive is then fed to the suction or intake pipe of the extinguishing fluid pump.

Abstract: An aspirator/nebulizer for use in inhalation therapy has dual oxygen nozzles extending into a cylindrical chamber into which air can be aspirated in a controlled manner via closable air holes. A 50 psig oxygen source can be diluted to atmospheric air to yield an oxygen/air mixture comprising less than 30% oxygen at the conventional patient flow rates of 30-60 liters per minute. The dual oxygen nozzles also allow pure oxygen to be delivered at rates of at least 40 liters per minute when such high flow rates of relatively pure oxygen are needed for short term therapy.

Abstract: There is disclosed herein a spa water jet aerator which proportionately controls the flow of water and air with a single control movement of a valve mechanism. The air and water apertures in the valve body are so shaped and located such that the air flow is controlled so as to be a function of volume of water flow. The function can be varied by varying the shapes and placements of the air and water passageways in the valve body relative to the locations and shapes of the air and water passageways in the aerator body. A key feature is that the air passageway can never be open to any extent when the water passageway is not open sufficiently to create a lower pressure in the mixing chamber than is present in the air supply line since this can lead to malfunction in ganged operation. A separate clamping mechanism allows adjustment of the water flow control valve to be independent of clamping movement of the clamping mechanism.

Abstract: An aspirator structure to proportionately mix a pressurized motive liquid and non-pressurized additive liquid and to deliver the mixed liquids into a storage supply of mixed liquids. The aspirator structure includes an elongate aspirating chamber connected with the supplies of motive and additive liquids and has a discharge end from which the mixed liquids flow. The structure next includes an elongate, vertical delivery tube with a cylindrical inside surface, a closed upper end portion communicating with the discharge end of the chamber and an open lower end opening in the supply of mixed liquids. The cross-sectional extent of the tube is greater than the cross-sectional extent of the chamber and the liquids flowing from the chamber are directed substantially tangentially with respect to the inside surface of the tube so that those liquids establish a vortex flow with and are moved downwardly therethrough by the force of gravity.

Abstract: A liquid metering and mixing aspirator including an elongate aspirator chamber with upstream and downstream ends, a small nozzle passage on an axis parallel with and radially offset from the axis and toward one side of the aspirator chamber and opening at the upstream end thereof adjacent said one side thereof, a liquid concentrate inlet port communicating with the upstream end portion of the aspirator chamber at the other side thereof, an enlarged vertical cylindrical mixing chamber with an upper end portion communicating with the downstream end of the aspirator chamber and a lower outlet end, water supply means connected with the nozzle passage and with a high pressure water supply and liquid concentrate supply means connected with the liquid concentrate port.

Abstract: A method and apparatus is provided for obtaining mixtures in predetermined proportions of a primary liquid and secondary liquid while the stagnation pressure and mass flow of the primary liquid are varying. The apparatus comprises a passive device having a passageway extending therethrough. A first section of the passageway for receiving the primary liquid has a decreasing area. A second section of the passageway for receiving the secondary liquid has an area substantially equal to the minimum area of the first section.

Abstract: A plumbing device stores one or more additives, and allows injection and mixing of such additives into the water stream delivered to a plumbing fixture such as a shower head or faucet. The design of the passage for the water stream provides a pressure differential sufficient to draw the additive into the water stream, while check valves are used to prevent backflow of additives. A mixing chamber, with an impeller element, mixes the injected material with the water stream. Metering valves may be used to control the amount of additive dispensed.

Abstract: Hydrostatic head control in the marine riser or sub-sea BOP stack of a deep water drilling unit is maintained through use of an eductor, or similar means, connected to the sub-sea BOP stack choke line for drawing salt water from the sea or mud from the sub-sea BOP stack kill line.

Abstract: Pressure cleaning apparatus comprising a pair of liquid containers at substantially the same level, including a water container (11) and a detergent container (12), a positive displacement pump (14) located below said liquid containers and having an inlet and an outlet, and an aspirator mixer (13) for supplying a mixture of water and detergent to the pump, comprising an outer tube (60) having first and second ends and a lateral inlet connection (42) near the first end, an inner tube (47) projecting into the outer tube in sealed relation to the first end, and having a first end extending past the lateral inlet, piping connecting (41) the second end of the outer tube to the inlet of the pump, connecting (48, 49, 32) the inner tube to the bottom of the detergent container, and connecting (43, 44, 45, 30) the lateral inlet to the bottom of the water container, slow operating check valve mechanism (63, 64, 65) operative to prevent continuous flow of liquid from the water container to the liquid container, and spri

Abstract: An injector for injecting into a flow of a first liquid passing through a flow passage formed in the body of the injector a second liquid, which is pressurized for injection by the pressure of the first liquid. Pressurization of the second liquid is accomplished by means of a liquid-tight canister separated into first and second pressure chambers by a flexible diaphragm. The pressure of the first liquid flowing through the injector is tapped off to pressurize the first pressure chamber, and through the diaphragm, the second chamber containing the second liquid. The second chamber is connected to the flow passage at a point downstream of the point where the pressure of the first liquid is tapped off to pressurize the canister, and the passage is venturi-shaped adjacent the point at which the second liquid is injected into the flow passage to provide an additional force drawing the second liquid into the flow passage.

Abstract: A method and apparatus for producing fluidized lime is disclosed herein. The apparatus includes a storage tank for holding and storing a fluid medium. Lime particulate is mixed by an inductor unit with the fluid medium in a closed conduit to thereby eliminate the problem of air pollution. The apparatus also includes a suitable valve and conduit system for delivering the fluid medium to the inductor unit, for returning the mixture of lime particulate and fluid medium from the inductor unit to the storage tank, and for circulating the fluid medium and mixture in a manner to achieve thorough mixing.

Abstract: A trigger actuated fertilizer spray gun has a herbicide injector mounted on its muzzle with the valve for the injector having an actuator which is also accessible from the handle of the gun, so that an operator, while spraying fertilizer, can make spot applications of a herbicide as weeds are encountered in the area being fertilized. The herbicide is carried in a canister which can either be mounted on the handle of the spray gun or on a belt worn by the operator and the canister is divided into first and second, variable volume chambers by a flexible diaphragm. The first chamber is connected to the flow passage of the fertilizer to pressurize it to approximately the line pressure of the fertilizer flow, and the second chamber, containing the herbicide, is connected to the injector at a venturi-shaped portion of a passage through it.

Abstract: A steam cleaning machine comprises a steam generator system including a tank for fuel, such as propane, a detergent tank, and connections to sources of air under pressure and water. A hand-held steam generator unit includes a central combustion chamber spaced inwardly of a surrounding jacket. A first conduit extends to the rear of the combustion chamber, carrying a combustible gas-air mixture. A water conduit extends to the rear of the jacket. The chamber has a spark plug extending into it, through the jacket, and the forward end of the combustion chamber has an axial exhaust pipe, surrounded by a steam discharge pipe connected to the outlet of the jacket. Downstream of the combustion chamber outlet pipe is a detergent inlet connected by a conduit to the detergent tank.