Abstract: A coin-controlled atomizer dispensing system is actuated entirely by compressed air or gas. At the conclusion of an operating cycle a cylinder is charged with liquid to be dispensed. The next operating cycle is initiated by inserting a coin which momentarily opens an air valve. A charge of compressed air and a charge of liquid are simultaneously fed to an atomizer nozzle until the charge of liquid in the cylinder has been completely dispensed whereupon the compressed air is cut off and the cycle is terminated by re-charging the cylinder with the next charge of liquid to be dispensed.

Abstract: A fluid delivery system (10) is provided for delivering at least one chemical (26) onto a field in a desired concentration. A carrier fluid (67) is provided for diluting the farm chemical (26). The mixture is pumped through a spray boom (18) onto the field by a main fluid pump (74). The chemical (26) is delivered to the inlet port (76) of the main fluid pump (74) by a chemical pump (54). The chemical pump (54) is operated by a variable speed stepping motor (56). The speed of the stepping motor (56) is controlled by a speed sensing wheel (88) to provide a uniform concentration of chemical on the field independent of vehicle speed. The motor speed is also controlled by a thumbwheel switch (116) to deliver a desired concentration on the field compensating for drive vehicle wheel slippage. The motor speed is also adjusted to calibrate the delivery concentration to the nozzle pattern through calibration switches.

Abstract: Liquid agrichemicals such as pesticides are applied to soil or crops in a continuous stream at low flow rate from microtubes without need for a mixing tank and without clogging of the microtubes during downtime, by a system mountable on a farm vehicle, the system comprising a liquid agrichemical supply tank, a water supply tank, a first conduit connecting the agrichemical supply tank to a manifold feeding the microtubes, a first pump in the conduit, water entrainment means (such as a venturi) and a second, suction pump in the conduit, a second conduit between the water supply tank and the venturi, and other conduits, valves and pressure regulators as appropriate to control the directions and rates of flow, and for recirculation or flushing. By such control, water may be entrained by the venturi for inline admixing with the agrichemical, or the venturi optionally may be bypassed for application of undiluted agrichemical.

Abstract: A device for mixing and spraying a mixture composed of at least two components, such as liquids, and of a propellant, comprising two containers disposed within each other for receiving the components to be mixed and the propellant, and comprising a dispensing valve mounted on the outer container and including a movably mounted dispensing tube. The dispensing valve is adapted to act on a closure member of the inner container in such a way that the inner container may be broken open by normal actuation of the dispensing valve or the dispensing tube thereof. In order to achieve and maintain a defined fluid communication between the interior of the inner container and the interior of the outer container, the closure member of the inner container preferably includes a sealing cap adapted to be pushed or urged into the container opening by the dispensing tube of the dispensing valve.

Abstract: A barrier type product container wherein product is contained at atmospheric pressure and separate from a pressurizing gas. And, mounted thereon, for example, a valve actuator that preferably includes an ejector pump type nozzle element that is valvingly positionable to facilitate ventilating inflow of ambient air into the container and dispensation of product. The nozzle element is also positionable to inhibit ventilation of the container and effluence of product, and facilitate use of ambient air to purgingly dispel product residue from discharge passageways of the nozzle.

Abstract: A method and apparatus for dissemination of a spray substance comprising small liquid or solid particles or a jet stream and projecting it over large distances from the device. The apparatus comprises either conventional ejectors or jet diffuser ejectors including means for introduction of liquid or solid spray substances into various regions of the ejector to provide a capability for handling substances of various physical and chemical characteristics.

Abstract: An aerosol spray device having a spray container charged with an agent to be sprayed, and an assembly including a bomb charged with a propellant compressed gas and a pressure regulator attached to the outlet side of the bomb. The assembly is mounted and fixed to the inside of the spray container through a packing interposed therebetween. The pressure regulator includes a piston adapted to control the flow of the gas from the bomb into the spray container through the pressure regulator. Means are provided for holding the piston in inoperative position until the aerosol spray device is actually used by the user after fabrication.

Abstract: A barrier type aerosol dispenser, wherein a product fluid is separately stored at atmospheric pressure within a primary outer container which is essentially a pliable bottle of almost any desirable shape, including that of a thin wall bag. A motivating gas vessel, containing propellant fluid and including a self-cleaning ejector type valve mechanism, is mounted in the fill opening of the primary container and suspended within the product fluid space thereof. The valve mechanism is adapted to initiate outward flow of propellant to motivate discharge flow of product fluid, and a conduit depending from the valve mechanism is adapted to facilitate separate passage flow of the product fluid through the propellant space of the motivating gas vessel.

Abstract: This disclosure relates to a manually operated, self-cleaning, aerosol valve that is adapted to maintain separation of fluids while they are within the valve body. The valve is internally separated by a sealing gasket that cooperatively engages a valve seat, and an outwardly projecting discharge passageway stem member. When the valve is in a nonoperating state, engagement of the gasket with respect to the valve seat prevents discharge passage of a first fluid to the stem passageway, and engagement of the gasket with respect to the stem prevents discharge passage of a second fluid. In cofluid dispensing state, first and second ports into the stem discharge passageway are positioned on opposite sides of the gasket. This allows first and second fluids to separately enter the stem passageway, and maintains separation of fluids awaiting discharge. When the valve is operated in positions intermediate the shut and cofluid dispensing state, both first and second fluid ports are positioned to receive first fluid only.

Abstract: A multispray system for beauty treatment in which a motor and a pump are mounted on a wagon and interconnected to each other to generate high pressure sufficient to spray a liquid through at least two pipes which are respectively connected to an atomizing sprayer and a foam sprayer, whereby the atomized spraying is performed by means of air under high pressure, and the foam spraying is performed by means of suitably reduced air pressure.

Abstract: A container for storing and dispensing a liquid product includes a pump operated by a reciprocable control member and associated with a pneumatic servo system. The actuation is achieved by supply of gas pressure, for example, from a reservoir of gas at a pressure of the order of 5 bars, and this is used to actuate the control member of the pump, for example a stepped piston incorporating a pressure multiplying effect. Much higher operating forces on the reciprocable control member can be achieved with this system than were possible by purely manual operation of the valve control member.

Abstract: A portable airless spraying device using an airless spray gun for spraying paint and a hose mounted with the spray gun for carrying paint to the gun is disclosed. The device includes a vessel having a dividing wall to provide a first compartment within the vessel which holds a quantity of paint and a second compartment within the vessel for holding pressurized gas. A gas inlet is mounted with the second compartment of the vessel for receiving a supply of gas and a paint inlet is mounted with the first compartment of the vessel for receiving paint. Coupling apparatus is mounted with the first compartment for mounting the hose to the vessel and a pick-up tube is mounted within the first compartment of the vessel with an inlet in close proximity to the bottom of the first compartment and an outlet mounted with the coupling apparatus.

Abstract: A fluid substance sprayer for spraying substances, such as liquids, paste, etc., includes a container for the substance with a lifting tube extending downwardly into the lowermost portion of the container and terminating at its upper end in a discharge fitting which includes a valve for closing off the lifting tube and opening it under the control of an actuator for the discharge of the substance out through a conduit terminating in a nozzle discharge. A filling tube is also provided on the interior of the container and it connects to a filling valve. A propelling gas, such as air, may be charged into the container through the valve to the top of the container above the substance level.

Abstract: A foam spray for beauty treatment comprising a spray main body having a mount for attaching a container containing a beauty treatment solution, a gas cylinder mounted in the spray main body, a gas flow regulator including a knob member for operating a valve on the gas cylinder, and a gas flow regulator sliding member coupled to the knob member. The gas flow regulator regulates the flow of gas into the container to adjust the rate of generation of the foam to be applied.

Abstract: A combined charging and product dispensing unit is provided for reception in the mouth of a container in sealed relation with the unit, including a valve body having a container of liquid gas carried thereby. The valve body is provided with a valve assembly for manually controlling the flow of gas under pressure out through the valve body into the container to pressurize the interior of the container. The unit also includes a discharge tube which is connected to a discharge nozzle carried by an actuator for the valve unit.

Abstract: A mobile agricultural sprayer having a control system for controlling the amount of chemical additive added to a water stream from a mobile storage tank in response to a chemical additive concentration detector is disclosed. The mobile sprayer utilizes a mobile water storage tank and at least one chemical additive tank which communicates with the water to be sprayed at a point between the tank and the sprinkler heads. A pump draws water from the storage tank and directs it under pressure to the sprinkler heads. The chemical additive is typically added in liquid form, such as a solution or a slurry, at a point preferably upstream of the pump inlet while concentration is measured at a point between the point of addition of the chemicals and the sprinkler heads and preferably before the inlet of the pump. The concentration detector transmits information to a monitor which controls the amount of chemical introduced into the water to be sprayed.

Abstract: A spraying apparatus utilizes pressurized gas to spray liquid contained in a large replaceable or refillable cartridge. The cartridge is positioned within a casing which provides a pressure chamber, and a source of pressurized gas is attached to the casing to pressurize the chamber. The top of the cartridge communicates with the chamber so that the liquid is also pressurized. A tube extends from above the level of the liquid in the cartridge to the bottom of the cartridge and is attached to a valve. An opening is provided in the tube adjacent to the bottom of the cartridge, and the diameter of the tube is reduced above the opening to restrict the flow of gas through the tube and to create a pressure differential in the tube. When the valve is open, pressurized gas flows through the tube, and, since the pressure of the gas inside the tube at the opening is less than the pressure of the liquid, liquid flows through the opening, mixes with the gas within the tube, and flows through the valve.

Abstract: An atomizing system including an improved nozzle assembly in which one or more fluids are mixed and dispersed as droplets from a conical bore controlled by means for adjusting the size of a dispersal orifice in conjunction with means for automatically operating the improved nozzle assembly from a pressure source which simultaneously supplies a pressurized gas and liquid to the valve assembly.

Abstract: A variable pressure spray apparatus is provided having a pressurizable fluid storage vessel connected to a pressurized gas cylinder. The spray apparatus is self contained and does not require an external power supply. A hand pulled support cart is adapted to support a removable tray that is capable of carrying the storage vessel and the pressurized cylinder. The combination of the cart and tray with the spray apparatus permits an operator to carry his equipment with him to previously inconvenient and inaccessible locations with regards to conventional spray equipment.

Abstract: An aerosol container is provided for foaming a liquid aerosol composition therein prior to expulsion from the container and then expelling the resulting foamed aerosol composition comprising, in combination, a pressurizable container having a valve movable between open and closed positions, with a valve stem and a foam-conveying passage therethrough in flow connection with a delivery port; at least two separate compartments in the container, of which a first compartment is in direct flow connection with the valve passage, and a second compartment is in flow connection with the valve passage only via the first compartment; and a porous bubbler having through pores interposed between the first and second compartments with the through pores communicating the two compartments, the pores being of sufficiently small dimensions to restrict flow of propellant gas from the second compartment therethrough and form bubbles of such gas in liquid aerosol composition across the line of flow from the porous bubbler to the v

Abstract: A manually portable spray tank includes a plug-like adapter mounted in the filler opening or mouth of the tank to receive and hold a pressurized can or canister containing a liquid propellant. The adapter includes a depending, elongated heat exchanger tube or trap which is closed at its lower end and which extends almost to the bottom of the tank for direct heat exchange contact with the liquid contained in the tank. Liquid propellant under pressure flows from the supply can into the heat exchanger tube or trap where it is vaporized by heat from the spray liquid in the tank. The vaporized propellant then passes under relatively high pressure outwardly through a comparatively small opening in the upper end of the heat exchanger tube into the ullage of the tank to pressurize the column of spray liquid in the tank and thereby insure its forcible discharge from the outlet of the spray tank.