Abstract: A liquid mixing and aeration system is disclosed comprising a novel liquid pump, a electronic circuit for controlling the system, and improved mixing for mixing flowing liquids. The system enables mixing of a first and a second liquids regulating fthe flow of the first liquid. A liquid pump is connected for pumping the second liquid. A control circuit controls the pump in accordance with the flow of the first liquid to maintain a given volumetric relationship between the first liquid and the second liquid. A mixer mixes the first and second liquid in accordance with the aforementioned volumetric relationship.

Abstract: A spool valve includes a disposable, replaceable cylinder containing gaseous media under pressure which is selectively introduced into the pitot and static lines of an aircraft for purging same incident to the endwise movement of a normally retracted plunger which comprises the valving member of the valve. The plunger, when in an inoperative position, maintains certain instruments in open communication with the pitot tube and outside static lines of an aircraft. When the plunger is advanced to an operative position, the aforesaid connections between the instruments, pitot tube, and outside static lines are closed, whereupon the gaseous media under pressure is introduced into the lines leading to the pitot tube and outside static air line for thereby purging said lines, and simultaneously therewith the instruments are automatically connected to an auxiliary pitot tube and auxiliary outside static lines.

Abstract: A dispensing assembly for discharging a flowing fluid into which a desired amount of an additive liquid has been inserted includes a container for the additive liquid which may be removed from a dispenser body. The container is normally positively biased to a closed condition to prevent escape of the additive liquid. Opening of the container is effected upon establishment of a predetermined minimum pressure by the flowing fluid in the dispenser body. Additive liquid is forced from the container into the flowing fluid by a metered amount of flowing fluid inserted into the container to cause a flexible pressure member to force the additive liquid from the container. Opening of the container is not achieved until after the pressure member is exerting a force on the additive liquid.

Abstract: A gas supply system including purge means. A supply conduit having an inlet and an outlet and a downstream direction of flow has within it a purge conduit with an inlet and a discharge port. The discharge port is directed upstream in the supply conduit and discharges adjacent to its inlet, whereby to purge that region of the supply conduit and to sweep gases from the entire supply conduit. The system is also provided with a selector valve able selectively to deliver gas to a delivery conduit or to a vent conduit or to shut them both off.

Abstract: A drip-proof probe characterized by a telescopic stinger adapted to be connected with a closed system, inserted into a shipping container for toxic fluid for sequentially extracting the fluid from the container and delivering the fluid to the closed system, and thereafter employed for rinsing residue from the container, all without subjecting handlers to contamination through spillage or inhalation.

Abstract: A pressurized dispenser includes an apertured vessel having a pressure chamber. An impervious sack of flexible material is nested within the chamber holding a fluid-like material to be dispensed. A neck as an integral part of said sack has a bore, projects through and is secured to said vessel and suspends the sack within the vessel, said neck defining a valve housing. A valve retainer encloses and overlies said neck and is secured to the vessel and contains an apertured primary valve gasket which is sealed over the neck and includes an apertured valve seat. A movable dispensing valve stem extends into the neck bore and projects out through the retainer and includes a valve stem normally biased against the valve seat and a nozzle. Pressurized gas is sealed within the pressure chamber for applying continuous pressure over the sack so that manual unseating of the valve stem releases controlled quantities of a fluid-like material through the neck, valve stem and nozzle.

Abstract: An apparatus for the spraying of a disperse system and which has a spray head with a hole-type nozzle. A plunger is present which is movably disposed inside the spray head and is shiftable in front of the aperture of the hole-type nozzle. A screen insert is present which is disposed in the spray head between the inlet for the disperse system and the hole-type nozzle. A scraper for the screen insert is present which is disposed between the inlet for the disperse system and the screen insert in such a manner that the scraper, upon movement of the plunger, sweeps the screen surface. An outlet, for the oversized particles scraped off of the screen surface, which is located between the inlet and the screen insert. A process for using the apparatus to spray a disperse system.

Abstract: A probe system primarily for a container containing hazardous chemicals, involving a rinse channel for permanent installation in the bung opening of the container and providing a passageway for a drop tube, and a coupling head installable over the rinse channel and drop tube and providing independent flow connections from each to independent external connections.

Abstract: An end gate cleanout apparatus which includes a plurality of slidable trays that can be connected end to end and moved into the bottom of a grain dryer or other apparatus and including driving means for removing or inserting such removable troughs so as to allow material to fall from the dryer.

Abstract: A bottle filling machine is adapted for circulating cleaning liquid through its combination gas and liquid storage tank and conduits, filler valves and other fluid passageways communicating therewith at high velocity by partitioning the tank into input and output chambers with a float that is urged into sealing relation by buoyancy and by pressure differential developed on its opposed sides as a result of the pressure drop produced in components that communicate between the chambers.

Abstract: A molding machine for use with quick setting and cold setting sticky mold material, a mixture of sand and self-setting adhesive, is provided with a device to clean out the machine during each cycle and after the blow operation is completed. The sand and adhesive is mixed with the catalyst to a condition so that it will set up in a matter of seconds, e.g. ten to sixty seconds, and as it is mixed, a predetermined quantity is immediately deposited in a magazine. The magazine is closed by a valve and air pressure is applied to blow the sticky mold mixture from the magazine through a blow head into a mold cavity wherein it immediately starts to set. A diverter is provided with a diverter passage just outboard of the blow apertures of the mold box and this diverter passage is next enabled and air pressure is again applied through the magazine and blow head to blow any small amount of excess sticky mold mixture out the diverter passage into a receptacle.

Abstract: A readily disassemblable gun for dispensing multiple fluidic components to a mixer includes a handle having an upper barrel. A head asembly is detachably connected to a rear end of the barrel. The head assembly extends flexible, fluid transporting tubes to a forward portion of the barrel and a detachable cap is secured to the forward end for defining an initial mixing chamber between the extended ends of the tubes and a conduit extending from the cap. Fluid components to be mixed are introduced from a supply source through individual tube communicating passages in the head assembly through the tubes to the initial mixing chamber. After initial mixing, the fluidic components are dispensed into an elongate mixer for additional mixing and ultimate discharge. A trigger lever is mounted on the handle and includes a member which normally deforms the tubes for preventing flow of fluidic components therethrough and into the initial mixing chamber.

Abstract: A combined micrometer screw and syringe assembly with variable predeterminable settings providing for the repeated, exactly reproducible delivery of predetermined variable volumetric amounts of liquid from the syringe but with permissive interim availability of the entire volume of the syringe for rinsing and cleaning thereof without altering any predetermined setting for the definite amount to be delivered therefrom.

Abstract: A method of purging a particulate suspension fluid from a fluid system during system shut-down utilizes an unparticulated constituent as the purging fluid. The unparticulated constituent remains in the system during shut-down periods and is subsequently converted to a composite fluid of the type it was previously used to purge.

Abstract: A method and a probe adapted to be inserted into a socket valve for an hermetically sealed container having confined therein a body of toxic fluid. The probe is characterized by a cylindrical configuration adapted to be telescopically inserted into a tubular sleeve of a socket valve and supported thereby for rotation relative thereto for thus opening and closing the valve, a container vent for introducing atmospheric pressure into the container as toxic fluid is extracted therefrom, and for washing residue from the internal surfaces of the container subsequent to extraction of the toxic fluid from the container.

Abstract: Apparatus for delivering different additive fluids in controlled amounts to equipment utilizing those fluids, such as laundry or dishwashing equipment, with the apparatus including valves for passing the different fluids to a pump unit, desirably actuated by individual timers controlled by separate product control switches, and with the apparatus acting to automatically feed flushing water past the discharge sides of the valves and through the pump after each operation of the equipment to clean the system of the additive fluids in preparation for a next successive operation.

Abstract: A system is described which is useful in dispensing and transferring a predetermined amount of a liquid such as a pesticide from a first container, typically a shipping container to a mixing zone. The control of the total amount of liquid dispensed is achieved by a tubular probe which is slidably mounted in a plug that can be sealed in an aperture of the top or bottom wall of the container. Preferably the probe bears indicia calibrated to indicate amounts of liquid proportional to the depth to which the probe is slid into the container. The device is employed in an system for transferring and metering a toxic liquid such as pesticide in a closed container system wherein the liquid is dispensed and metered from the shipping container and the container is thereafter rinsed free of any pesticide residue in a totally closed system free of any operator intervention.

Abstract: A hydraulically actuated knife punctures a container of chemicals, dispenses them to a storage reservoir and simultaneously therewith dilutes and mixes the chemicals with water. Next, a spray directed along the knife automatically washes the interior of the container to insure that all of the chemicals are removed. Once the container is punctured, the contents of the container spill down over and about the knife and into the storage reservoir. When the hydraulic pressure is released, the knife, which is springloaded when actuated, returns to its original position.

Abstract: A system for accurately mixing two or more liquids and for dispensing the mixture. The system is generally adapted for use in paint spraying operations. The flow of one of the components is accurately measured by means of a flow meter and the measured value provides a signal to control a valve which, in turn, controls the flow of the other liquid. Periodically the volume of the first mentioned liquid is measured for a given time period so as to make necessary adjustments in the flow meter-valve interconnection. An improved arrangement is provided for purging a mixing manifold immediately prior to the completion of the dispensing cycle so that none of the mixture will be wasted. The control arrangement includes improved air operated two and three-way valves.

Abstract: A method of and apparatus for cleaning the icemaker of a beverage dispensing machine having a carbonator in which carbonated water is introduced into the icemaker and into the water feeder tank and is allowed to stand for a period of time sufficient to dissolve or loosen bacterial slime and accumulated lime, after which time the carbonated water is drained and the system is flushed with still water. In one embodiment of the invention the feeder tank and icemaker are drained and carbonated water is introduced. In another embodiment carbon dioxide from the carbonator is introduced directly into the water in the icemaker and water feeder tank.

Abstract: A mixing and dispensing apparatus for liquids that react chemically with each other from plural independent sources mixes same, and then cleans itself by injecting a terminal portion thereof into a mold. The mixing and dispensing means is intended to be incorporated into a system that provides measured quantities of the respective liquids, has control valving external of the mixing and dispensing means of the invention, and can recirculate the respective liquids except during actual mixing and dispensing. The mixing and dispensing apparatus has porting and passageways in its housing to permit recirculation and has a plunger which can be adjusted in its stroke to cover or uncover a certain amount of the mixing ports through which the respective liquids flow into the mixing chamber thence into the mold cavity.

Abstract: The dispensing apparatus is especially adapted for metering, mixing and dispensing small "shots" of synthetic resin material in liquid form with a minute percentage of a liquid catalyst for patching defects in wood panels. A hand-held dispensing gun of the apparatus has a static mix tube extending from a mixing chamber in a dispensing head where a single air-operated piston upon trigger actuation simultaneously opens resin and catalyst infeed ports to the mixing chamber. At the same time, trigger actuation connects a control air line from a source of compressed air to a pilot air line to start an air motor which drives resin and catalyst metering pumps. These pumps are driven from a common drive shaft with an adjustable mechanical linkage for adjusting the catalyst-resin metering ratio. The pumps meter resin and catalyst through separate lines to the mix chamber of the dispensing gun. A thermostatically controlled heater preheats the resin as it flows to the dispensing gun.

Abstract: A device for heating shaving lather from a pressurized container and for supplying hot lather includes a housing within which there is a hot water reservoir and a coil connected between an inlet and an outlet for the lather. A hot water inlet is adapted to suspend the device from a water faucet and supply hot water to the hot water inlet. An adapter is secured to the lather inlet for detachably connecting same to the water faucet for purging of the coil.

Abstract: A valve for a pressure pack primarily designed for dispensing powders in the absence of liquid. The valve has the usual housing, gasket, stem, spring and mounting flange components but the special problems of dispensing powders are overcome (a) by introducing a liquid film between the sealing surfaces; (b) by physically removing particulate material from the valve stem by wiping and (c) by providing a double seal between the pressurized contents of the can and the atmosphere. In a further modification, the valve stem is connected to or continuous with the dip tube.

Abstract: Pistons of one pair of double-acting cylinders are connected to opposite sides of one point of a lever, one being driven by one chemical and the other supplying the chemical to a mixing and applying gun. A second pair of pistons of a second pair of double-acting cylinders are connected to the lever at a second point on the lever, a distance from the pivot point of the lever either the same or a predetermined fraction of the distance of the first-mentioned point from the pivot point of the lever, and are driven by a second chemical and supplying the second chemical to the gun, the cylinders all being of the same diameter. Valving actuated by the lever reverses the drives of the pistons automatically. In an alternate embodiment, supplies of the chemicals to the gun may be cut off and a solvent supplied to the gun to prevent the chemicals in the gun from setting up.

Abstract: A product employable in chemical working operations, for instance pipetting, where one or several devices are moved between, inserted into and withdrawn from a plurality of liquid containers arranged in a row, with the product preventing undesirable transfer of liquid between the containers. The product includes a layer of an absorbent material covering the openings into the liquid containers and closely engaging the devices to wipe off and clean their exteriors. The layer of absorbent material is fixed to a supporting layer provided with oval holes arranged to register with the openings into the liquid containers.

Abstract: An apparatus for dispensing semi-frozen beverages containing water, a flavoring syrup and carbon dioxide in which the water and flavoring syrup are delivered under a pre-set substantially constant pressure through respective water and syrup flow restrictors to a mixed beverage delivery line so that the proportions of the water and syrup in the mixed beverage are controlled by the water and beverage flow restrictors. The apparatus includes mechanism for selectively passing water under the gas pressure in a reverse direction through the syrup flow restrictor to back flush and clean the same. The apparatus also includes mechanism for automatically controlling the flow of mixed beverage to the freezing chamber and the venting of gas from the freezing chamber to maintain the liquid in the chamber at a preselected level and pressure.

Abstract: A receiving chamber is provided for receiving and enclosing a container of chemical such as an insecticide. While the container is in the chamber, a punch member perforates through the top and bottom of the container to permit the insecticide therein to transfer out from the bottom of the chamber to a main tank of water for mixing therewith. The resulting mixture is then passed to suitable spray apparatus for spraying the insecticide in agricultural operations. A plunger member coaxially surrounds the punch member and extends through the top of the chamber and can be lowered to crush the container after its contents have been emptied into the main water tank. In addition, the punch member includes an internal passage for passing flushing water into the container prior to crushing of the same so that it is cleaned out. The entire system is closed so that there is no risk of operators becoming contaminated by the insecticide chemical.

Abstract: There is disclosed a jet drop coating system comprising a series of orifices in an orifice plate, and an apparatus for initiating a clean flow of coating liquid through the orifices. There is a fluid supply passage leading to the orifices and this passage is initially filled with air at atmospheric pressure. The system is started up by admitting coating liquid into the passage at a relatively high rate. The pressure of the liquid is in excess of the operating pressure required for clean flowing streams through the orifices. When the liquid enters the fluid supply passage it initially drops to atmospheric pressure. As it continues to flow into the passage, it sweeps the air ahead of it causing some of the air to flow out of the orifices. However, the orifices provide sufficient restriction that the air cannot escape as fast as it is being displaced by the incoming liquid. Consequently the air trapped within the fluid supply passage becomes compressed.

Abstract: A foundry mold or core blowing premix nozzle for use in connection with the kold core process. The nozzle contains a mixing chamber that allows thorough mixing to occur during the blowing process. Immediately after the blowing operation the nozzle may be cleaned of any residual sand/catalyst/resin mixture which would ordinarily set up and clog the nozzle if allowed to remain within the nozzle. This cleaning feature is provided by a push through shuttle that sweeps the mixing chamber and moves a turbulence inducing baffle, normally positioned within the chamber, to a position external to the nozzle where it may readily be cleaned.

Abstract: In cleaning and sterilizing rotary backpressure filling machines which include filling elements and a pressure actuated conveyor operatively associated therewith, the conveyor is adapted to support rinsing vessels used in cleaning the filling elements. More particularly, the cleaning operation of is effected by inserting, fastening and detaching a rinsing vessel upon the filling machine with a rinsing operation occurring while the rinsing vessel is fastened to the machine. The rinsing vessel includes axially movable sleeve which cooperates with radially movable clamping members, preferably in the form of spherical balls, to attach the rinsing vessel to an air and/or gas fill pipe of the filling machine, with pressure being introduced into the rinsing vessel to actuate valve means enabling flow of cleansing fluid through the machine.

Abstract: In accordance with a preferred embodiment of this invention, a precessing bottom pour stopper is used to accurately and precisely control the flow of molten metal through the tap hole which is located in the bottom of a metallurgical vessel. The precessional movement of the stopper, as it moves into and/or out of sealing engagement with the tap hole, removes any debris which may be lodged between the sealing surfaces and thereby ensures a tight seal over a prolonged period of operation.

Abstract: A tank is provided which may be filled with water and pressurized from a CO.sub.2 bottle or the like and it may be connected to the system to be cleansed by means of conventional quick connector hoses. An inner container is provided which holds a cleansing solution and a valve system is located within the inner container connecting and disconnecting same to the outlet of the main tank. When pressure is applied to the main tank, a one-way valve in the container permits this pressure to act upon the liquid within the container which is then forced into the valve system and thence to the outlet of the main tank mixing with water from the main tank as it passes from the outlet. The discharge of the liquid is controlled by the dispensing taps of the system to which it is attached. When the cleansing solution is exhausted from the inner container, the valve system closes and the remaining water in the main tank is then forced through the system to purge the lines of cleansing liquid and dissolved deposits.