Abstract: The integrated modular spraying system is suitable for applying chemicals, including liquids and dry flowables, to various remote locations. The system includes an integrated modular tank which is preferably rotomolded from thermoplastic. A well is formed in the side of the tank and is further defined by two opposing buttresses which receive and support a freely rotating hose spool. A pump is located in a recess in the tank for pumping chemicals from the tank through the flexible hose. The hose can be peeled off from the hose spool for a substantial length to enable an operator to spray a chemical at locations remote from the integrated modular spray apparatus. After application of the chemical is complete, the hose spool can be rotated to rewind the flexible hose about the spool. In an alternative embodiment, the apparatus is suitable for applying dry flowables, including various insecticidal dusts and powders, using an air pump instead of a liquid pump.

Abstract: A device for spraying or dispensing a fluid, the device comprising: a single-acting pump having a capacity of less than 500 .mu.l and provided with piston means actuated by a hollow push rod allowing fluid to flow therealong, said piston means sliding in a pump chamber that normally contains fluid to be sprayed or dispensed, to enable said fluid to be expelled; a pusher mounted on said push rod of the pump and communicating with said push rod to enable the fluid to escape; and rapid repetition actuator means having a moving portion for actuating the push rod repetitively; wherein the pusher is connected to said moving portion of the actuator means by a connection that does not leave play in the axial direction of the push rod.

Abstract: A carrying case is provided for a paint sprayer that, when the paint sprayer is removed, functions as a paint container for the paint sprayer. The case has a removable top wall or lid to provide good access into the container for placing or removing the sprayer and other accessories. A standard, medium-sized garbage can liner can be placed inside the container, held in place when the lid is snapped on, to greatly simplify clean-up.

Abstract: A pneumatic spraying apparatus and method of operation is disclosed for controlling the flow of pressurized air and fluid material through a spray gun. A material pump is driven through a ratio multiplier by an air motor which is operated by a source of pressurized air. A discharge port in the air motor is connected by an air hose to the gun through a control valve leading to a chamber from which the material is sprayed by air pressure downstream of the valve. Selective operation of the valve controls the downstream air pressure and air flow rate through the gun which in turn modulates air motor speed and torque by controlling the rate of air flow and pressure from the discharge port. This in turn controls the pump speed through the action of the ratio multiplier.

Abstract: A battery operated hand-held dispenser which operates efficiently at lower power levels than prior art devices. The dispenser as included therein has spray, foam or stream, dispensing capabilities coupled with pump mechanisms, vent mechanisms and positive closures.

Abstract: A liquid spray gun whih includes an improved flow rate control. The improved flow rate control results from a valve in the supply inlet line which can restrict the flow of liquid material from the supply container. The ability to vary the flow rate is improved because, while the electromagnetic motor is maintained at maximum electrical input power, inlet flow can be accurately regulated. Maintaining maximum input pressure ensures optimum spray performance. Finer atomization at lower flow rates can be achieved from the improved flow control system.

Abstract: A self-contained cleaning system particularly suited for use with motor vehicles comprising a storage tank filled with cleaning fluid and containing a pump and a D.C. electric motor, a hose, and an external power cord, and a pistol shaped sprayer head. Depressing a trigger shaped control piece on the sprayer head opens a valve disposed therein and closes an electrical switch that activates the D.C. electric motor which drives the pump, sending cleaning fluid through the hose to the sprayer head. Cleaning fluid is emitted from one of several nozzles on a rotatable nozzle selector on the front of the sprayer head. A locking mechanism, which can hold the control piece in one of several pre-determined positions, along with a magnet in the base of the handle of the sprayer head enables hands free operation of the unit, with the sprayer head secured by the handle to a steel surface such as a car body. The 12 volt D.C.

Abstract: A system for extruding or spraying high molecular weight thermal-cure thixotropic material, such as structural epoxy, includes apparatus for supplying the material at constant flow rate and heating the material to elevated temperature above ambient. An extrusion nozzle has an inlet manifold in which flow of heated material is divided into a least two parallel flow paths. An extrusion head includes a cavity having a dimension perpendicular to the paths and into which the flow paths open at one longitudinal edge of the cavity. Side and end walls of the cavity taper narrowingly in the opposite direction to a rectangular orifice extending along the inlet-remote edge of the cavity. A spray nozzle includes a inlet manifold having a ball-type valve at its outlet for imparting shear stresses to thixotropes in the material exiting the manifold outlet, and thereby reducing material viscosity during passage through a transition chamber which extends from the valve to a spray tip.

Abstract: A liquid sprayer includes a housing with a spray outlet, an electric pump switch which is movable to operate a spray generating pump and a manual grip defined on the housing. A main switch is moveable linearly along the housing between on and off positions, which operate the electric switch to respectively cause and stop pump operation. A safety actuator is movable to block and permit movement of the main switch. The safety actuator has a grippable portion biased to extend outwardly from the housing. To operate the pump switch, a user squeezes the safety actuator into a switch on position in which the safety actuator releases blocking engagement with the main switch, and thereby allows the main switch to be moved to its on position which operates the pump switch to operate the pump.

Abstract: A fluid flow restrictor comprising a restrictor valve and a flexible tube housed in the valve, and an internally located outwardly biasing spring positioned in the tube such that the tube is biased against the action of the valve, the assembly being adapted to reduce the diameter of the tube with minimal permanent deformation of the tube.

Abstract: A perfume emitting device for use in an automobile comprises a tank for storing a perfume emitting material and a perfume atomizing unit connected to the tank. The perfume atomizing unit is provided with a nozzle for atomizing the perfume emitting material and an operation member reciprocably mounted in the perfume atomizing unit for mechanically operating this unit, when a door of the automobile is opened, so that the perfume emitting material may be emitted to the inside of the automobile for a predetermined period of time.

Abstract: An airless sprayer is disclosed. A power sprayer equipped with an electromagnetic operated mechanism is easy in handling and simple in operation.However, in taking out a nozzle head, a piston pump and the like for the purpose of cleaning, it is very difficult to take them out and cumbersome to do so. Assembling is not easy.Taking-out operation and assembling operation of the nozzle head, the piston pump and the like can be accomplished easily whereby cleaning can be easily accomplished. The power sprayer of this kind can be used more conveniently.

Abstract: An improved metering dispenser system for delivering a fixed or variable measured quantity of a high viscosity material such as adhesives or sealants for application to a substrate is disclosed. It uses an Archimedian screw pump having a stator formed with a spiral cavity therethrough, and a spiral rotor which is driven by a variable speed drive motor. The stator has a nozzle attached to its outlet end, the inlet end thereof being in fluid communication with a reservoir for the material. The dispenser system is adapted for use in combination with a robotic system so that the nozzle is manipulated thereby. The rotational speed of the drive motor is controlled in response to a signal representative of a nozzle velocity so that the nozzle can apply a ribbon of the material with a fixed width to the substrate despite nozzle velocity variations. When the nozzle is about to come to a stop, the drive motor is rotated in a reverse direction so as to cause the nozzle to stop discharging the material instantly.

Abstract: The invention relates to an improved spray apparatus to be mounted on the frame of a concrete finishing machine. The invention includes an electric battery powered pump that is actuated by a switch on the handle of the machine. A battery holder and a liquid reservoir are secured to a support bracket, and the entire bracket assembly is secured to the frame of the machine. Liquid is supplied by the pump to a pair of spaced spray outlets. The spray outlets are secured close to the surface being finished to minimize disruption of the spray by the wind.

Abstract: A spray container or can which possesses a spray mechanism for finely atomizing fluids through the intermediary of a hydraulically-operating pump. Containers such as spray cans and spary bottles or flasks of the above-mentioned type generally known in commerce. Through the intermediary of mechanically actuatable pumps, in this instance there is sprayed a finely atomized fluid from a nozzle which is arranged on a housing of the container. The spary mechanism is inserted into a housing which is connectable with the supply container for the spray fluid or liquid through a close-fitted or frictional locking connection, and in which the spray mechanism incorporates an electromotively driven gear pump, and in which the suction line of the pump is conducted through an opening in the bottom of the housing into the supply container, the latter of which is equipped with a venting line, whereby the gear pump includes a delivery or pressure tube at its output end which is connected with a discharge nozzle.

Abstract: This invention relates to a mobile system for washing vehicles which supplies water at high pressure through a discharge hose to a user-operated spray gun or wand. The mobile washing system contains means to receive water at low pressure from the municipal or domestic well water supply. There is an engine and pump that pressurizes the water received; an onboard sdelf regenerating water softening unit to remove impurities from the wash and rinse water so that washed vehicles may dry virtually spot-free without manual drying; reservoirs for storing a liquid cleaning agent and a liquid wax which can be introduced into the discharge stream under operator control to eliminate the need to manually apply soap or wax; and valves and controls to effectively operate the wash system. All components are mounted on a wheeled cart which can be easily rolled from vehicle to vehicle by the operator or rolled to a convenient washing location.

Abstract: A rechargeable garden sprayer includes a container having an opening on an upper face, a lower suction tube, and an inlet formed at a side thereof. The inlet cooperates internally with the main body of the container such that liquid poured in through the inlet flows to the container. An engaging body has a base with about the same shape and size as the upper face of the container so as to be mounted on the container. The engaging body includes a number of upstanding hollow tubes along its periphery and a fixing panel to define a retaining recess. A top cover having substantially an inverted U-shaped body has two side panels with a number of downwardly extending poles at an inner side thereof for inserting into the hollow tubes and thus engaging with the engaging body. The top cover has a handle on its uppermost part.

Abstract: Disclosed herein is a glove amusement device for squirting liquid. The device includes a liquid storage apparatus, a glove and an umbilical cord connecting the two. The liquid storage apparatus includes an electro-mechanical pump which is activated by a trigger mechanism on the glove and a liquid container. The umbilical cord contains both electrical and liquid conduit. The electrical conduit connects the pump and the trigger and a portable power source, such as a battery pack, while the liquid conduit connects the liquid container and an opening in the glove. The liquid is transported from the container through the liquid conduit out an opening in the glove by activation of a pump. An end cap at the termination of the liquid conduit causes pressure to build at the end cap and a pulsating, hard stream of liquid is forced out the glove opening.

Abstract: A portable sprayer has a container is provided with a threaded hole for selectively mounting to either a hand pump which pressurizes the interior of the container or an electric pump, which may be operated by batteries or a rechargeable accumulator, which delivers the liquid to the sprayer without pressurizing the container. The container is provided with another threaded hole for filling purposes. This hole can be closed by a leak-tight stopper, which is equipped with a valve or a pressure gauge if the hand pump is used, or by a simpler stopper if the electric pump is used.

Abstract: A self-contained cartridge for transporting and dispensing liquid chemicals. The cartridge includes a hollow body member open at the upper end and divided into a lower closed tank for holding liquid chemicals and an upper open end compartment. A pump is provided to pump liquid chemicals from the closed tank. The pump is activated through a quick disconnect fitting.

Abstract: A liquid ejection apparatus which is provided with a body thereof, a liquid ejector having a nozzle, and a liquid feed pipe, disposes an optical fiber along the liquid feed pipe, so that an optical signal is transmitted from a light emitting element to a light receiving element via the optical fiber. The liquid ejector is provided with a control unit for controlling transmission and cut off of the optical signal, thereby enabling remote control from the liquid ejector of operating equipments provided at the apparatus body.

Abstract: The invention provides a spray gun for liquids and more especially liquid coatings such as paints and varnishes, comprising a liquid container, a housing, a pump for the supply of the liquid from the liquid container to a spray nozzle via a spring loaded outlet valve, and a return duct connecting the outlet of the outlet valve with the container and having an adjustable valve therein. Pumping may be caused to take place by switch means on the handle. For adjustment of the further valve, which may be preferably completely shut, there is an adjustment member in the front part of the spray gun on the jet side thereof, which is decoupled from the switching on means and, while being able to be steplessly adjusted, is able to remain in each setting of its own accord. This makes it possible for the spray jet to be modified readily without interrupting spraying and even when the spraying density is very low it possible to ensure an even spray cone.

Abstract: An automobile cleaning system comprises a source of cleaning fluid and control apparatus connected to the source and responsive to a control input for pressurized output of the cleaning fluid. The system has also a source of pressurized medium, such as positively or negatively (vacuum) pressurized air. A portable unit for issuance of the pressurized cleaning fluid has a first channel with an input port connected to the control apparatus for receipt of the pressurized cleaning fluid and an output port for fluid issuance and has a second channel with an input port connected to the pressurized air source and an output port at a surface of the portable unit for closure upon blockage by a user of the system. A conduit is provided to conduct indication of second channel blockage to the control apparatus as the control input thereto.

Abstract: A washing apparatus for providing a fluid such as hot water to either a spray nozzle or a dishwasher. A thermostatically controlled heated water storage tank supplies fluid to a piping system having a first branch and a second branch. The first branch is directed to the inlet of a pumping system which pumps hot water to a first outlet of the apparatus. The first branch also includes a bypass line. The second branch of the piping system is directed toward a second outlet of the apparatus and includes a flow sensing switch. The first outlet is adapted for connection to a spray wand having a high pressure nozzle therein for supplying high pressure sprayed fluid as desired. The second outlet is adapted for connection to a dishwasher having a solenoid controlled inlet valve. As long as the dishwasher is not running, the pumping system and spray wand may be used normally.

Abstract: A pump driven portable sprayer powered by rechargeable batteries. The pump and batteries are housed in a rigid pipe which is threaded onto a liquid tank in extension through a fill opening of the tank. Extending from the pipe is a flexible hose which carries a spray wand on its end. A cap on the pipe is equipped with electrical connections for a battery charger and for alternative power sources such as an AC adapter, a vehicle cigarette lighter adapter or a portable battery pack.

Abstract: This invention relates to a self-contained, portable apparatus for admixing a plurality of liquids. The liquids, generally a diluent (such as water or an organic solvent), together with dilutable liquid chemical concentrates such as pesticides, fertilizers, and the like, are automatically proportioned and blended together to produce a resultant mixture, with controlled dispensing of the resultant mixture. The apparatus, which may be hand carried, is preferably powered by a battery source that is operatively connected to a positive-displacement pump. Such positive-displacement pump draws the liquids into the pump, utilizing the pump vacuum force, mixes the liquids in the pump chamber or housing, and thereafter discharges the resultant mixture from the apparatus, utilizing a suitable dispensing device.

Abstract: An improvement in a hydraulic motor for use with an airless paint sprayer system which includes releasable stop means that lock a spool means within said motor to a surrounding sleeve which stop means signal the end of upper and lower strokes of a reciprocating piston associated with said sleeve. In addition, hydraulic fluid anti shock means are provided to prevent the rupture of outlet filter means.

Abstract: The mass to be sprayed by the spray gun is stored in an airtight closed storage container. A cushion of pressurized air is generated above the level of the paint mass present in the storage container. This air cushion is fed by means of a manually operated piston pump projecting into the storage container. Accordingly, the mass to be sprayed and fed via the feed line extending to the spray gun is pressurized. Conclusively the feed line can be designed with a longer dimension, the mass to be sprayed can be more viscous and the distance in height between storage container and spray gun can be much larger.

Abstract: There is disclosed herein a liquid spray gun which includes an improved heat dissipation system and an improved leakage flow recirculating system.The improved heat dissipation system results from an improved and stronger air flow through the gun housing and around the electromagnetic coils. The improved air flow is created by a venturi or aspiration effect at the spray tip created by the action of the piston pump in spraying liquid at high velocity reducing the air pressure adjacent the tip. The internal portion of the housing communicates with the low pressure area so air in the housing is drawn from the housing to the low pressure area. Vents are provided in the housing adjacent the electromagnetic coils for outside air to be drawn into said housing over said coils and to the low pressure area, thus improving air flow and heat dissipation.

Abstract: This invention relates to an apparatus for quantitatively definite delivery of a liquid or thick, pressurized medium such as paint, varnish, glue or the like wherein the medium is placed under pressure by a conveying pump comprising a pump discharge valve and whereby a second valve is provided at or close to the delivery nozzle, this second valve being actuatable by the pressure of the medium to be delivered and having an opening pressure which is greater than that of the pump discharge valve.

Abstract: A misting and watering can includes a can body having a pouring spout on one side thereof and a hollow handle on its opposite side. A misting and watering nozzle mounted in the pouring spout includes a misting aperture surrounded by multiple pouring passages in communication with the pouring spout. A pumping mechanism within the hollow handle includes a trigger operator. A delivery tube in the interior of the can body is connected with the pumping mechanism within the hollow handle. A discharge tube connected with the pumping mechanism extends within the pouring spout and is connected with the nozzle in communication with the misting aperture.

Abstract: A protective cover for a spraying apparatus which sprays a liquid through a nozzle. The protective cover is capable of surrounding the high-pressure region of a ject of the liquid sprayed through the nozzle, and is provided in the inner circumference near the open end thereof with a drip preventing wall for preventing the drip of the liquid caused to adhere to the inner circumference of the protective cover. The liquid caused to adhere to the inner circumference of the protective cover flows along the inner circumference of the protective cover and is stopped by the drip preventing wall, and thereby the drip of the liquid is prevented satisfactorily.

Abstract: Power paint sprayer includes a power handle assembly and a separately detachable pump and container assembly. The pump housing has a bail pivotally connected to opposite sides thereof for pivotal movement into and out of locking engagement with a detent on the top of the power handle assembly to detachably hold the pump housing up against the bottom of the power handle assembly. The pump housing may be cast in one piece and has a longitudinal bore extending therethrough in which a pump cylinder is permanently affixed using a suitable adhesive/sealant. The pump piston is driven by an oscillating armature whose movements are limited by a stroke limiting screw thus to limit the stroke of the pump piston. The stroke limiting screw threadedly engages a split nut held together by a pair of O-rings that apply a friction load on the stroke limiting screw to prevent creep thereof due to vibrations and the like.

Abstract: The spraying condition adjusting mechanism of a spraying apparatus according to the present invention has a regulating member fitted on the spraying condition adjusting member so as to turn together with the spraying condition adjusting member, and stoppers are formed in the main housing of the spraying apparatus and the regulating member, respectively, to limit the turning of the spraying condition adjusting member, so that spraying apparatus can be adjusted simply to a desired spraying condition by turning the spraying condition adjusting member within a limited range defined by the stoppers.

Abstract: Disclosed herein is an improved pumping system for self-contained and, if desirable, portable machines adapted to efficiently spray or squeegee viscous sealing fluids on roadway pavement and parking lots, which fluids may contain suspended solid matter. For example, this fluid pumping assembly is especially suitable for spraying asphaltic or coal-tar-pitch emulsions containing sand onto asphalt road surfaces. Also disclosed is an improved hydraulic drive cylinder assembly and control means therefor employing an improved electrically controlled hydraulically operated drive network.

Abstract: A system for applying sealant material to the welded seams of an automobile body including a reciprocating piston pump for supplying the material under pressure from a reservoir to an overhead distribution manifold. From the manifold the material is supplied to a plurality of extrusion guns through drop lines, each of which includes a pressure regulator and volumetric metering gear pump for maintaining a constant flow rate to the guns irrespective of pressure changes which may occur in the distribution manifold.

Abstract: Sprayer apparatus with a molded container having a back-support panel for abutting relation with the back of a user while being carried, the container having attached, at the lower end thereof, a stand formed of bent tubing for supporting the container in a vertical position on a surface. A pressure vessel is centrally disposed within the container, with the lower portion of the pressure vessel having a threaded coupling fitting opening communicating with inlet and outlet passages. A fitting is threadably received within this opening, the fitting having passages communicating with the container and pressure vessel. A support plate is configured for detachably slidably securing directly to the lower part of the stand for support of a motor operated pump and battery, with the battery disposed inwardly relative to the bend of the stand, and the motor-pump outwardly thereof. Flexible tubing interconnects the pump and fitting.

Abstract: A portable plant spraying/watering device includes a reservoir holding liquid to be dispensed, a hand-held dispensing device, and structure for delivering the liquid to the dispensing device. The dispensing device includes a housing, first and second variable flow valves fluidly connected to the liquid-delivering structure, a spray nozzle fluidly connected to the first valve, and a stream nozzle fluidly connected to the second valve, so that the liquid may be dispensed in spray or stream form selectively by opening the first or second valve, respectively.

Abstract: There is disclosed herein a liquid spray gun which may be used for spraying paint. The gun includes a piston pump for withdrawing liquid from a reservoir and providing a force for spraying the liquid. The gun also includes a nozzle for receiving liquid from the piston and spraying the liquid under pressure. The piston pump includes a collection port for accumulating leakage liquid or flow from within the pump. A fluid circuit collects leakage liquid from the collection port and delivers the leakage liquid to a position forward and adjacent the nozzle. The fluid circuit includes a conduit having an inlet end connected to the collection port and an outlet end positioned adjacent the nozzle. The high velocity spray creates a low pressure area adjacent the nozzle and a venturi effect in the fluid circuit means for cooperation in drawing the liquid from the collection port to the nozzle.

Abstract: A window washer comprises a washer liquid jet nozzle provided under a windshield glass of a vehicle so as to be directed thereto for periodically deflecting the jetting direction of the washer liquid horizontally by the fluidic self-oscillating operation thereof, a pump provided in a washer liquid passage connecting the jet nozzle to a washer liquid tank for pressurizing the washer liquid and sending the pressurized washer liquid, a driving motor for driving the pump and a motor control circuit for applying a square pulse shaped voltage to the motor. The motor control circuit periodically operates the pump so that the discharge pressure thereof periodically changes. Consequently, the jetting direction of the washer liquid jetted from the jet nozzle is periodically deflected horizontally and vertically.

Abstract: An electric spray including a spray casing having a grip formed with a recess, a tank mounted on the spray casing, a nozzle member fitted detachably into the recess and a slide switch mounted slidably on the grip. The spray casing accommodates a pump and a motor for driving the pump, while the slide switch is formed with a hollow for receiving the nozzle member so as to be at least partially exposed outwardly when the nozzle member has been received by the hollow.

Abstract: A spraying system includes a screw conveyor to transmit material to be sprayed from a storage container to a spray nozzle. A predetermined torque is maintained on the screw to thereby maintain a predetermined pressure on the material within the conveyor, so that an instantaneous flow of material at a predetermined pressure can be obtained when the nozzle is opened. The pressure is preferably maintained by means of a hydraulic motor designed to stall at a predetermined torque. A heating jacket for housing heated oil surrounds the screw conveyor and provides heat necessary to maintain the material therein at a predetermined temperature.

Abstract: The invention deals with a method and a circuit for operating a spray gun having a vibrating armature drive which is energized with an electrical a.c. signal. To reduce the liquid which is sprayed per unit of time by the spray gun, a pulse width modulated energizing signal with abruptly rising leading edges is fed to the vibrating armature drive. The circuit includes a control circuit which produces a control signal with abruptly rising leading edges and a controllable switch which electrically couples a supply voltage source and the vibrating armature drive, the control terminal of the switch being connected to the output of the control circuit. The circuit may alternatively have a signal generator which produces a control signal with abruptly rising leading edges and a power amplifier connected to the output of the signal generator, the output of the power amplifier being connected to the vibrating armature drive.

Abstract: An improved airless electric sprayer is disclosed having superior balance, portability, receptacle interchangeability, cleanability and a non-tipping stand feature. The user's hand conveniently grasps a piston grip in close proximity to the nozzle for accurate spray control at a position generally above the combined center of mass of a motor housing and receptacle for balanced comfortable use. The invention includes a release and lock arrangement affording handy receptacle attachment and disengagement without need for unscrewing the receptacle from the body of the sprayer, which also prevents spillage. To prevent clogging, any unsprayed liquid is allowed to accumulate around a reduced piston section and drain therefrom back into the receptacle. The housing has an access panel to expose pump assembly for convenient cleaning.

Abstract: A hand held household or hobby type spray gun is provided with a pistol grip housing having a transverse bore receiving a removable piston pump and nozzle assembly, suspending a removable container for the medium to be sprayed, and covered by a removable cap enclosing an electric motor for driving the piston of the pump. The pump and nozzle assembly is locked in the bore by a quarter turn rotation which seats a detent in a recess of the bore. The electric motor is energized from an external power source through a cord carried by the cap or from batteries which may be mounted in a chamber provided by the grip or handle portion of the housing. The housing may be a one-piece injection mold plastics material member, and the removable container for the media to be sprayed as well as the closure gap for the motor may also be injection mold plastic material members. The grip or handle portion of the housing span the rear side of the spray gun and has a front recess embracing the container.

Abstract: A container of water is mounted on a motor vehicle and a pump means for dispensing that water into a passenger compartment of said vehicle is provided. The water will be delivered in the form of spray or vapor. An electrical circuit is formed with a humidity sensing device within the passenger compartment for purposes of actuating the vapor forming and dispensing apparatus.

Abstract: A hydraulically actuated pump of the piston-diaphragm type for pumping a liquid such as paint through an airless spray gun having a flexible hose which is connected to the pump outlet downstream of the outlet check valve and which has a volumetric capacity many times the displacement of the diaphragm actuating piston to constitute an elastically expansible and contractible pressure storage vessel.

Abstract: A motor actuated piston pump assembly is mounted in a housing which is detachably connected to a container closure having a diaphragm pump-spray nozzle assembly mounted thereon. The piston pump actuates the diaphragm pump-spray nozzle assembly for dispensing liquid from the container, the piston pump and diaphragm pump being constructed and arranged so that the piston pump does not become contaminated by the liquid being dispensed and thus can be detachably connected to other containers having similarly mounted diaphragm pump-spray nozzle assemblies for successively dispensing various types of liquids.

Abstract: A metering device for providing fine control of the movement of a capillary tube and hence the rate of aspiration of a fluid flowing through the tube is disclosed. A reduction gear is threadedly mounted in a housing and has an internal threaded bore. An elongated member which holds the capillary tube with the aid of a vice or collet is threaded into the internal bore of the reduction gear. The number of threads per unit axial length on the outside threaded surface of the reduction gear, which surface is threaded into the housing, is different from the number of threads per unit axial length on the internal bore. This provides the reduction gear effect to thereby provide longitudinal displacement of the elongated member as well as the capillary tube in linear proportion to the rotational displacement of the reduction gear. The housing has a pin which is adapted to be inserted in a groove in a nuthead of the elongated member to maintain the elongated member rotationally stationary with respect to the housing.

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.