Abstract: A dispensing and handling system for solutions is disclosed. The system includes a container (11) for mixing, storing and dispensing a use solution (44) through a spigot (17). The container (11) is mounted upon a cart (12), and is interconnected to a water supply conduit (16) and a concentrate solution tube (14). The concentrate solution (15) is contained within containers or bags (13). An aspirator (26) is permanently mounted within the storage container (11). The water conduit (16) and pick-up tube (14) are releasably connected to the storage container (11) by means of a quick-connect assembly (35). Also disclosed is a method for storing and handling solutions.

Abstract: The invention is concerned with a method and apparatus for dispersing an active ingredient, such as a fumigant. The active ingredient is placed in a container and a pressurized solvent/propellent is subsequently introduced. The solvent/propellent expands to adopt a liquid phase and a gaseous phase. The liquid phase serves to absorb the active ingredient and the gaseous phase serves to propel the borne active ingredient out of the apparatus where further expansion takes place and the active ingredient is dispersed in a fog or mist.

Abstract: A dispenser for ejecting slurry into a liquid stream so that optimum mixing s attained. This dispenser may include an elongated body having nose and main sections, the forward end of the main body section having an annular slurry receiving cavity which is located adjacent the nose. Means are provided for mounting the nose to the main body section for longitudinal movement so as to open and close the annular cavity to the liquid stream. In this manner the slurry can be ejected and dispersed into the liquid stream when the annular cavity is opened thereto. In order to obtain controlled mixing the dispenser may further include a conduit in which the elongated body is disposed.

Abstract: A blot screening apparatus is formed of a plate having numerous, elongated, narrow, shallow, parallel, separated reaction channels formed in one surface. The channel openings are positioned over a treated membrane which reacts with fluids introduced into the various channels. An elongated, narrow, groove-like socket, formed in the opposite plate surface, overlaps and extends transversely over each of the opposite and portions of the channels. Holes formed in the plate communicate the opposite ends of each channel with the base of its overlapping socket so that fluid samples may be separately introduced into each channel through its holes. Manifold plugs that are shaped to closely fit within the sockets are removably positioned in, and frictionally sealed against, the walls of the sockets, but are spaced from their adjacent socket bases.

Abstract: A liquid spray gun including (1) a reusable air gun portion including a manually operable valve for controlling air flow; and (2) a disposable container and spray nozzle assembly including a sheet of flexible material having portions attached together and to a central portion of a tube to form a chamber, a liquid in the chamber, and an aspirating nozzle connected to the tube and adapted to be releasably coupled to the air gun portion so that upon movement of air through the nozzle liquid in the chamber will be entrained in that air and sprayed from the nozzle. The assembly can include a coil comprising a strip disposed in a plurality of wraps about an axis and having a spring temper biasing the strip to an axially extended position to form a tube like structure, with an end portion of the coil positioned around an end portion of the tube within the bag so that during spraying the tube like structure will insure that most of the liquid can be dispensed from the chamber.

Abstract: An apparatus for the uniform proportioning of granular blasting agents in pneumatically operating blasting machines is disclosed in which the blasting agent supply is in a closed hopper with a blasting agent feed controlled with regard to the amount of agent fed per unit of time. A screw conveyor screw disposed in a horizontal screw conveyor tube having an entry area adjacent to the discharge area, which is in turn adjacent to a removal duct of the conveyor screw tube has substantially the same cross section diameter value of a blast-air duct. The blast-air duct forms a tee with the screw tube in the discharge area. To compensate for the pressure drop in the device during its operation, a connecting duct is provided between the blast-air duct and the closed hopper. The branching of the connecting duct to the blast-air duct lies upstream from the entrance to the screw conveyor tube.

Abstract: Apparatus and method for supplying fiber in a chute feed (10) are disclosed including a pivotal air control deflection vane (B) pivoted at an entrance (46) of a reserve section (12). The inclination of the vane (B) may be adjusted, depending on airflow conditions and fiber type, to redirect the incoming horizontal flow (58) of fiber-laden air and deposit the fibers (F) in a column having a level surface (80). The transport air (72) exits the chute (32) of the reserve section through a grille (70). The level column of fibers provides feeding of a uniform weight of fibers across the entire width (W) of the chute for uniform feeding and opening the feed roll (34) and opening roll (39).

Abstract: A sealable, collapsible storage module for storing and shipping matter such as grain and plastic resins is disclosed. The module includes a body having a bottom portion and a flexible, collapsible upper portion. The flexible, collapsible upper portion is sealed to the bottom portion to define a sealable storage chamber for storing matter. The body also defines at least one sealable port in communication with the storage chamber through which matter is conveyed. The module also includes a plurality of internal support lines extending across the inside of the storage chamber wherein each support line is attached at its ends to opposing sides of the upper body portion. The plurality of support lines provides internal support for the upper portion to prevent it from rupturing when it is filled with matter such as grain.

Abstract: A fiber spray system for depositing fibers onto a substrate or article comprises a vibrating feeder bowl having an opening in its sidewall covered by a grid or screen through which fibers loaded into the feeder bowl are discharged therefrom into the fiber collector. A delivery hose is connected between the fiber collector and a pump which is operative to create a negative pressure within the fiber collector to draw fibers through the grid of the feeder bowl, out of the feeder bowl into the fiber collector and to entrain the collected fibers within a stream of air. The air-entrained fibers are drawn through the delivery hose to the pump, and in the course of passage therethrough the velocity of the fibers is reduced so that they collect or accumulate within an area in the delivery hose upstream from the pump. The pump uniformly withdraws fibers from the area where they accumulate and discharges the fibers directly into a spray gun connected to the pump for deposition onto a substrate.

Abstract: Apparatus for the distribution of fluid materials, notably liquids such as oils and essential oils, perfumes, and the like, which are typically at least somewhat corrosive vis-a-vis injection heads for the dispensing thereof, includes a distribution nozzle, the geometry and mode of operation of which prevent the backup of distributed material into the dispensing nozzle/system during shutdown, and advantageously a control for the automatic regulation of the starting and stopping of the dispensing function.

Abstract: A potentially disposable, low cost spray tip to be connected to a conventional hollow caulking tube which is loaded with a supply of relatively thick, viscous material, with or without solid particulate matter in suspension, that is to be controllably sprayed onto a desired surface (e.g. drywall). The spray tip includes a material sleeve, which is fixedly attached to the spout of the caulking tube to channel material therefrom, and an air stem, which is attached to an air source to channel a supply of air under pressure. In operation, the relatively thick, viscous material is moved into the air stream, and a mixture of air and material is uniformly and continuously sprayed through an exit orifice in the spray tip to efficiently spray the surface.

Abstract: Disclosed is a method and apparatus (10) for dispensing powdered pesticide (13). A housing (11) is separated into an upper chamber (12) and lower chamber (51) by a porous media layer (19). The powdered pesticide (13) is contained within the upper chamber (13) and is fluidized when compressed air enters the dispenser from air inlet line (18). The fluidized pesticide is dispensed through adjustable dip tube (26), outlet line (34) and nozzle (36) when a control valve (50) is activated. Only particles having a size smaller than a predetermined size are dispensed; the remaining, relatively large pesticide particles remain in the upper chamber until physically removed.

Abstract: An apparatus and process for dispensing predetermined, incremental units of fusible metal alloy paste material for joining together metal components by means of a pneumatic applicator system.

Abstract: The invention is directed to an apparatus and a method for thoroughly mixing a suspension containing a fluid and solid matter constituents and spraying the thoroughly mixed suspension onto a surface. The apparatus includes a pressure and seal tight container enclosed on all sides for accommodating the suspension therein. The container has a top region and has a base region whereat the solid matter constituents tend to collect to form a sediment. A cylinder and a piston generate a charge of air under pressure which is conducted through a passage into the base region of the container to break up the sediment and thoroughly mix the solid matter constituents in the fluid as the air under pressure rises through the suspension to collect at the top region of the container where it imparts pressure to the suspension. A nozzle unit mounted on the container vents the container to permit the air under pressure to entrain the thoroughly mixed suspension to form a spray.

Abstract: A liquid spray gun including (1) a reusable air gun portion including a manually operable valve for controlling air flow; and (2) a disposable container and spray nozzle assembly including a sheet of flexible material having portions attached together and to a central portion of a tube to form a container, a liquid in the chamber, and an a spirating nozzle connected to the tube and adapted to be releasably coupled to the air gun portion so that upon movement of air through the nozzle liquid in the chamber will be entrained in that air and sprayed from the nozzle. The assembly can include a coil comprising a strip disposed in a plurality of wraps about an axis and having a spring temper biasing the strip to an axially extended position to form a tube-like structure, with an end portion of the coil positioned around an end portion of the tube within the bag so that during spraying the tube-like structure will insure that most of the liquid can be dispensed from the chamber.

Abstract: A pneumatic dosimeter for providing exact dosage of pulverulent materials, for instance for supplying aluminium oxide and fluoride to an aluminium electrolytic cell, comprises a vessel (1) with an upper chamber (2) which at the bottom is provided with a fluidizing device in the form of a fluidizing canvas (3) with an underlying chamber which is connected to an air source via a pipe line (5). The vessel is provided with an inlet (6) for the supply of pulverulent material from a supply tank or hopper (7) to the upper chamber (2), and an outlet opening for discharging the chamber (2). At least one fluidizing channel or pipe (9) is provided between the supply tank (7) and the vessel (1). This channel is provided with a fluidizing wall or fluidizing canvas (10) which is connected to an air supply source through a pipe line (12).

Abstract: A cylinder assembly which may incorporate a dip tube when used, for example, as a vapor transfer device of electronic grade organometallic liquids to a deposition system but can also be used for storing and dispensing liquids and gases. In case of vapor transfer, the device preferably includes one self-closable filling port inlet, one gas inlet valve and one outlet vapor valve. The dip tube extends downwardly into a cylindrical container.

Abstract: A lid for a paint can is disclosed which has a wiper for removing paint from a paint tube and a vent assembly to allow air to enter the can and resists the escape of paint. The wiper removes the excess paint from the paint tube and allows the paint gun and tube to be readily removed from the can and prevents loss of paint through the vent opening.

Abstract: Transport container for the transport of bulk material provided with a filling-hole in the upper part and an emptying device in the rear. For the loading and unloading of also parcelled goods the container is provided with a side section that can be opened, and that the emptying device comprises a pneumatic pressure discharger with a pressure vessel into which the bulk material can freely flow from the container through a check valve and in which, with the check valve closed, pressure can be produced for discharging the bulk material through a discharge pipe.

Abstract: An enriching device consisting of a container which comprises a removable tightly fitting metal body the sparingly volatile material being present in a coiled groove. During operation of this device transverse flows and shortcuts, respectively, of the carrier gas flow occur. To assure that the carrier gas flows through the material without having an escape possibility, the groove (5) is made either in an outer wall of the metal body (8) or in the bottom (4) of the container (1), and the parts (6) present between the individual turns of the groove have a cutting edge, i.e. a cross-sectional profile in the form of a wedge, the tip of which is in contact either with the smooth inner wall of the container (1) or with the smooth lower side of the metal body (8). The device is suitable for adjusting a defined mass flow of sparingly volatile materials which are used as starting compounds for chemical deposition from the gaseous phase.

Abstract: An apparatus for dispersing duct material into the atmosphere at low concentration levels and substantially uniform rates, wherein the apparatus has a tank, a fluidizer positioned in a lower portion of the tank, an air feed communicating with the fluidizer, a discharge port in an upper portion of the tank, a tubular densifier mounted substantially vertically in the tank and extending from a lower portion thereof to adjacent the port, the densifier having an air inlet adjacent its lower end and an outlet adjacent its upper end in direct and immediate communication with the port, and, an air feed communicating with the inlet, the densifier having longitudinally spaced passages therein for the transfer of dust material from the tank into the densifier for transportation to the discharge port.

Abstract: Disclosed is a method and apparatus (10) for dispensing powdered pesticide (13). A housing (11) is separated into an upper chamber (12) and lower chamber (51) by a porous media layer (19). The powdered pesticide (13) is contained within the upper chamber (13) and is fluidized when compressed air enters the dispenser from air inlet line (18). The fluidized pesticide is dispensed through outlet line (34) and nozzle (36) when a control valve (50) is activated. Only particles having a size smaller than a predetermined size are dispensed; the remaining, relative large pesticide particles remain in the upper chamber until physically removed.

Abstract: An apparatus for spraying liquidous mixtures via compressed air is described. The design allows extensive use of plastic in its construction, employs a minimum of parts and allows complete assembly and reassembly with only a minimum of hand tools. The device incorporates an automatic air shut off valve that stops the flow of air upon release of the trigger, an adjustable trigger stop that ensures a uniform flow rate and a special orifice plate design that enables its quick replacement.

Abstract: A powder constant-volume feeder includes a canister having on the inner surface thereof a fin for transferring powder upwards and is inclined to form a return portion for the powder which has been transferred by the fin. A bucket wheel has a plurality of buckets for continuously transferring the powder from the interior of the return portion to a powder hopper. The powder hopper receives the powder from the interior of the buckets of the bucket wheel. A constant volume of powder can thus be fed continously at a constant bulk density.

Abstract: A limp, porous membrane of sheet (i.e., cloth) material for a fluidized outlet is disclosed. The outlet is in communication with a container, such as a hopper within a covered hopper railway car, containing a supply of particulate material for being fluidized and unloaded via the outlet. The outlet comprises an outlet housing, an outlet frame for securing the outlet housing to the hopper, an outlet opening, and outlet walls extending from the frame to the outlet opening. The membrane is secured to the outlet frame and to the outlet opening and is disposed generally on the inside faces of the outlet walls. A manifold is provided for introducing a fluidizing fluid (e.g., air) under pressure between the outlet walls and the membrane such that the fluidizing fluid flows through the membrane thereby to fluidize the lading above the membrane.

Abstract: A blasting device for pulverizing material being fed through a hopper connected to a supply of pressurized gas. The blasting device comprises a housing member including an intake opening connected to the supply, an output opening connected to the inside of the hopper and a top opening. A tubular member connected to the output opening on one end are disposed within the housing member so that two compartments are defined. A cap member cooperatively and hermetically sealing the top opening thereby defining a third compartment. A diaphragm/valve member sandwiched between the peripheral underside of the cap member and the top opening of the housing, including a spring biased assembly urging the valve member downwardly in contact with the other end of the tubular member thereby separating the two compartments. Conduit means connecting the supply to the third compartment. Valve means for opening and closing the third compartment.

Abstract: A container for liquids comprises a bottle having a continuous peripheral wall, a spout and an auxiliary mounting portion. The spout is threaded, in the preferred embodiment, so that a threaded cap or dispensing apparatus may be removably engaged thereon. The auxiliary mounting portion includes a pad on the top wall of the bottle having a mounting boss projecting from the pad. The mounting boss is threaded or serrated so that either the threaded cap or the dispensing apparatus can be removably engaged on the mounting boss when the other of the cap or dispensing apparatus is mounted on the bottle spout. The dispensing apparatus can comprise a spray head having a siphon tube that is detachable from the spray head. The bottle can be provided with a generally vertical groove in the peripheral wall of the bottle. The groove is sized to accommodate the siphon tube when the spray head is mounted on the mounting boss of the auxiliary mounting portion.

Abstract: A pneumatic, syphon type apparatus particularly advantageous for dispensing and applying viscous materials in a spray form features, in a preferred embodiment, a throwaway eductor assembly which slip fits to the delivery end of a tubular structure adapted for connection to and delivery therethrough of air or other gaseous fluid under pressure. The eductor assembly comprises a tubular adapter extended at one end by an eductor tube and at the other by an applied nozzle and a syphon tube connected therewith to open to its interior adjacent the nozzle and at right angles thereto. In use of the apparatus the syphon tube is introduced to a body of the material to be dispensed as the end of the adapter including the nozzle is releasably coupled to the discharge end of the tube which is connected to a source of air under pressure.

Abstract: A powder product to be sprayed is conveyed by a stream of gas in a flexible conduit between a storage tank and a spray orifice from which a mixture of the gas and the product is ejected. The mixture is agitated upstream of and in the vicinity of this orifice by oscillating a section of the flexible conduit in the vicinity of this orifice. The powder product sprayer comprises a flexible conduit and a device for circulating a mixture of the product and the gas in this conduit. It further comprises an enclosure surrounding a section of the conduit and a device for oscillating this section of the conduit. The device for oscillating the conduit may comprise a vibrator fixed to this section of the conduit and free to move inside the enclosure. The vibrator may comprise an annular cage surrounding and fixed to this section of the conduit, a ball movable inside the cage and a device for injecting air into the cage in a direction adapted to cause movement of the ball inside the cage.

Abstract: A dual air system for separately conveying fertilizer and seed in an implement such as an air drill or air seeder which includes an adjustable divider arrangement for providing a small amount of starter fertilizer to be placed with the seed. The total fertilizer metered by a fluted feed wheel is divided into two streams by an adjustable knife plate. A pivoting baffle plate resting against the knife plate deflects one of the two fertilizer portions to the fertilizer air system. The other fertilizer stream is delivered to the seed air system. The overall rate of fertilizer application may be adjusted without affecting the total amount of fertilizer provided to the seed air system.

Abstract: A paint cup assembly for a suction feed paint spray gun having an improved drip free vent. An annular groove forming a tortuous vent passage in the lid is covered by a gasket which seals the lid to the paint cup. Removal of the gasket provides access to the vent passage for cleaning. In a modified embodiment, a valve is provided selecting either a direct vent passage or a tortuous drip free vent passage.

Abstract: In this invention, a means is described for seeding through a self-propelled irrigation system. In one form of the invention, the seeds are metered into an auxiliary water line, supported on the main water line, and are sprinkled onto the ground by way of sequentially operated sprinklers. In another form of the invention, the seeds are metered directly into the main water line and are broadcast onto the ground by sequentially operated sprinklers.

Abstract: An improved multi-boom field spraying apparatus designed to spray in a sequential manner one or more of a plurality of liquids to a selected spray zone among a number of spray zones is described. The apparatus contains a novel spray, agitate air and rinse system. A novel spray boom and vessel apparatus are also described.

Abstract: Apparatus for metering and dispensing seeds from a liquid or gel suspension of seeds includes a rotor having a plurality of orifices disposed within concave-shaped recesses about the peripheral surface of the rotor, each recess communicating with a bore of the rotor by a passageway. The rotor is supported within a recess in a housing by a stationary pintle having circumferentially extending grooves which are aligned with the radial passageways in the rotor, the grooves being connected to a pressure source and to a suction source so as to enable a suction to be applied to orifices located at a first region of the housing and a pressure to be applied to orifices located at a second region of the housing. The orifices located at the first region are exposed to the seed suspension, and the suction causes a seed from the suspension to be drawn to and held on the peripheral surface.

Abstract: Dispensing of particulate matter such as powder via a gaseous stream is facilitated by placing the powder in an amorphous, manipulable pouch through which the gaseous stream flows. Squeezing and manipulating the pouch results in manipulation of the contained powder to control the amount of powder entrained in the gas stream. The pouch is supported with its outlet opening disposed generally downstream of its inlet opening in order to provide a direct, rather than a tortious, flow path through the pouch.

Abstract: A machine for applying sub-atmospheric pressure through a filter to pull material from a hopper laterally into a non-rotatable chamber at a presettable volume and after the chamber is filled blowing the material out of the chamber through the filter out of a discharge nozzle at the bottom of the chamber into a receptacle. In a preferred embodiment, the material is a pulverulent material which is fluent en masse and the material is aspirated into the measuring chamber by applying a sub-atmospheric pressure above a variably positionable head in the chamber which head has a filter in it through which the suction is drawn. After the chamber is filled, a super-atmospheric pressure is applied over the head to shoot the mass of particulate material out of the discharge nozzle, the particulate material having been held back by a discharge valve prior to the application of the super-atmospheric pressure.

Abstract: A wettable spray box for dispensing wettable agricultural spray powders in a tank of spray equipment so as to protect the operator from exposure to the powders is disclosed. The spray box comprises a box (10) with a lid (12) for attachment to the spray tank. The bottom of the box is fitted with a main pipe (18) which extends into the spray tank. A fill pipe (24) extends part way down the interior of the main pipe (18) and is connected to a source of water. One or more knives (34) within the box (10) are positioned to slit a bag of wettable powder which is inserted into the box. A water injector (40) extends into the slit bag, and a spray head (48) is positioned near the top of the box. An inserted bag is prevented from falling to the bottom of the box (10) by a rack or screen (28). In use, an unopened bag of wettable spray material is inserted into the box (10) and the lid (12) is closed to seal the box.

Abstract: A hand-held spray unit includes a main body preferably having a pistol grip handle depending therefrom with a passageway having an inlet at one end and a nozzle outlet at an opposite end and a mixing chamber adjacent the outlet end with a valve to control one of the handles to control flow of a pressurized fluid. A specially-designed supply container is preferably releasably mounted on the top of the body and has a horizontally elongated tapered funnel-like profile which slopes down toward the front end thereof and extends forwardly and rearwardly of the handle to provide a balance weight of the contents of the supply container. The front of the container has an outlet communicating with the mixing chamber. A rectangular interlocking connection between the container and spray unit body provides a positive releasable interlock therebetween.

Abstract: A seed planter is provided with a stationary, funnel-shaped bin whose lower-end extension is constructed as a pair of electromagnetically, pneumatically, or mechanically pivoted brackets, defining a duct smaller than the grain when the brackets are closed. Other seeds are blown out of the funnel while one is retained until deposited upon briefly opening the brackets.

Abstract: In a method of and an apparatus for producing a gas-solid free jet (7) of constant mass or volume flow rate, in which jet the solid particles having a particle size particularly smaller than 50 .mu.m are dispersed completely and uniformly, a consolidated or compressed solid particle mass flow (8) of constant density and constant cross section is produced with the aid of a rotating metering groove (2) and subsequently sucked entirely into a closed flow channel to be accelerated and dispersed in an injector (9). The resulting gas solid particle mixture is discharged out of the flow channel as a free jet (7). Dispersing, particularly of very fine particles (up to a few .mu.

Abstract: A novel abrasives distributor is disclosed. The distributor comprises a movable assembly, and at least one gun. The assembly preferably includes an elongated, hollow shaft having an inlet, and a hollow manifold which is in communication with the hollow shaft and which is carried at one end thereof. The assembly further preferably includes a receptacle which surrounds the shaft and which is preferably carried by the manifold. The manifold includes at least one manifold outlet. A transport fluid, such as air, is introduceable into the shaft inlet, is passable through the shaft and manifold, and is exitable from the manifold via the manifold outlet. The gun is preferably independently carried by an arm which, in turn, is carried by the depends from the assembly. The assembly is movable relative to a workpiece. The receptacle includes at least one receptacle outlet. Abrasives, from an abrasive source, are introduceable into the receptacle and are exitable from the receptacle via the receptacle outlet.

Abstract: A storage container for solid particulate materials includes a source of `lubrication` gas coupled to a fluidizer. The fluidizer particulate materials are carried from the container by a stream of transport gas. A deflector placed over the container outlet constrains the fluid flow in a substantially horizontal path to prevent the outlet becoming blocked by the solids when the gas flow is cut off. The proportions of particulate material can be varied by selectively varying the pressure in the container, where the container is a pressure vessel.

Abstract: An ejector device which comprises a housing and a number of ejector nozzles positioned in partitions between successive suction chamber is produced by making the housing, producing suction chambers in the latter, forming communication opening between successive chambers, drilling holes through the walls of the housing and the partitions, inserting ejection nozzles into the holes in the partitions, providing flaps to cover the communication opening and closing the housing with a top cover.

Abstract: An apparatus for heating air for a pneumatic conveyor implement is disclosed. Air is heated in a variety of fashions including passing input air to fan (26) through radiator (53) of fan drive motor (54). Air is also heated by mixing it with the exhaust gases from exhaust pipes (66), (72) from the propulsion engine of vehicle 16 or the fan drive engine (54). The heated air enhances distribution uniformity of substance 20 at the outputs (28) of the implement.

Abstract: A device for inking an electrostatic charge image with toner particles in a xerographic unit is disposed adjacent to an information carrier on which the electrostatic charge image is carried so as to form a developing gap above the charge image. The device has a toner feed channel and a toner discharge channel which are surrounded by an excitation layer for electrostatic charging of the toner particles by triboelectricity. A plurality of multiphase electrodes are disposed adjacent to the device in the area of the feed and discharge channels, the electrodes being supplied with multiphase alternating voltage for generating a nonhomogeneous self-propagating electric field for delivery and withdrawal of the toner particles. A single phase alternating voltage is applied in the area of the developing gap for generating an electric field which presses the toner particles against the information carrier.

Abstract: A device for mixing and dispensing fluids comprising a head unit having a flow passage provided with a converging portion for receiving a first liquid stream from a pressurized source A hollow pipe rotatably mounted in the head unit is provided with a suction port through which a second liquid may be introduced into the flow passage downstream of the converging portion. The hollow pipe partially projects into the flow passage thereby forming a restriction in the flow passage, a low pressure region thus being formed downstream of the suction port. A chamber may be provided in the flow passage downstream of the converging portion thereof and upstream of the suction port. The chamber is vented to atmosphere thereby providing a vacuum break so as to prohibit the second liquid from being drawn back into the source of the first liquid upon terminating the flow of the first liquid stream.

Abstract: An all welded square bottomed stainless steel cylinder and dip tube device for transferring by vapor deposition very reactive electronic grade organometallic liquid to a deposition system includes a top fill opening and inlet and outlet diaphragm valves, and is coated on the interior with PVF Teflon to several thousandths of an inch thickness. Contamination of the liquid is eliminated or at least substantially minimized since the device is stable in an upright position, the diaphragm valves each have a very small and inert area exposed to the liquid, and the coating serves as a barrier to contamination of the liquid by the metal of which the cylinder and dip tube are made.

Abstract: A system is disclosed which allows a container and material to be weighed in the presence of a pressurized gas and reduces the effects on that weighing caused by variations in the gas flow and pressure. The system includes a container which receives material to be weighed and a structure for discharging material from the system. The container is mounted on a scale for providing weight readings and flexibly coupled by at least one inlet to provide a pressurized gas to the container which isolates gas flow and pressure effects transmitted to the container.

Abstract: A liquid applicator for dispensing a chemical, such as a herbicide, in dilute aqueous form. The applicator has a first container adapted to contain a concentrated chemical and a second container adapted to receive chemical from the first container prediluted with water. A valve controls the flow of chemical and water from the first to the second container and controls the flow of water to an aspirator which further dilutes and discharges the chemical.

Abstract: For the controllable removal of bulk materials from containers, a device is provided with a gas-permeable lining facing the bulk material, which lining is mounted on a support under the container outlet, with a gas connection mounted on the support, and with a shut-off device or valve element. To achieve uniform material flow from the outlet without high expense for mechanical devices with the smallest possible structural dimensions, even for bulk materials with poor ability to flow, according to the invention, the support (7) with the gas-permeable lining (9) attached to it is designed at least partly as a valve element (5) for the container outlet (3), and that the valve element (5) is movable while clearing the container outlet (3) at least partially.