Abstract: A tamper-resistant nozzle assembly for preventing the unwanted or unintentional dispensing of a material from a container. The nozzle assembly may comprise a base adapted to fit on top of a container holding the material, a mechanism located within the base and configured to provide tamper-resistant properties for the nozzle assembly, a nozzle connected to the base and having a pair of diametrically opposed tabs extending downwardly therefrom into the base, the tabs being capable of travelling radially inward when squeezed by a user, whereby, in a locked state, the mechanism limits the travel of the tabs such that (1) the nozzle cannot rotate relative to the base, and (2) the nozzle cannot be depressed to release the material from the container. When a user squeezes the tabs, the mechanism is in an unlocked state and permits the rotation of the nozzle relative to the base, to thereby enable the nozzle to be depressed relative to the base to allow it to dispense the material from the container.

Abstract: A universal pressurized spray nozzle replaces a standard trigger spray nozzle on a bottle having liquid content, the universal pressurized spray bottle providing a pneumatic pump to pressurize the contents of the bottle wherein the trigger release on the pressurized spray bottle releases a steady stream of liquid under pressure from the bottle, with the spray nozzle providing an assortment of different length nozzle tubes which are adapted to bottles of various depths and interchangeable bottle caps which are provided for bottles having various diameter bottle openings and thread patterns.

Abstract: An automated chemical fluid applicator apparatus includes a container of fluid chemical having an integrated pressurization device and an outlet for releasing the fluid chemical. A portable, battery-powered fluid pumping apparatus is retrofitable to the container and has housing having at least one fluid inlet port and at least one fluid outlet port, wherein the at least one fluid inlet port is connectable to the outlet of the container. A liquid diaphragm pump is positioned within the housing. A battery is removably connectable to a battery terminal connector formed on the housing, wherein the battery powers the liquid diaphragm pump. A control switch is positioned on the housing and controls activation of the liquid diaphragm pump to expel the quantity of fluid chemical from the at least one fluid outlet port.

Abstract: A fluid supplying device of the present invention includes a reservoir, an outer tube, an inner tube disposed in the outer tube, a pressing rod, and a positioning handle. The outer tube disposed in the reservoir and is partially exposed outside the reservoir. The pressing rod is slidably disposed in the inner tube. The positioning handle is pivotably disposed to the reservoir and is able to alternatively abut against the pressing rod to prevent the pressing rod from moving. The reservoir forms a relief hole, and the positioning handle forms a through hole. When the pressing rod is restricted by the positioning handle, the relief hole is deviated from the through hole, and vice versa. Thereby, the present invention can prevent gas-leakage and prevent the pressing rod from bouncing up.

Abstract: A fluid supplying device of the present invention includes a reservoir, an outer tube, an inner tube disposed in the outer tube, a pressing rod, and a positioning handle. The outer tube disposed in the reservoir and is partially exposed outside the reservoir. The pressing rod is slidably disposed in the inner tube. The positioning handle is pivotably disposed to the reservoir and is able to altervatively abut against the pressing rod to prevent the pressing rod from moving. The reservoir forms a relief hole, and the positioning handle forms a through hole. When the pressing rod is restricted by the positioning handle, the relief hole is deviated from the through hole, and vice versa. Thereby, the present invention can prevent gas-leakage and prevent the pressing rod from bouncing up.

Abstract: A tank sprayer assembly includes a tank component and a subassembly, the tank component having a neck that defines a first access opening. The subassembly includes a sprayer component and a packaging container, the packaging container defining a cavity and having a lower wall defining a second access opening. The sprayer component includes a cap and a pump attached to the cap, the cap and the neck being configured to threadingly engage each other. The tank sprayer is positionable in an assembled configuration and disassembled configuration. In the assembled configuration, the cap is aligned with the second access opening, the neck is extended through the second access opening into the cavity, and the neck and the cap are threadingly engaged to secure the sprayer component to the tank component. In the disassembled configuration, the cap is aligned with the second access opening and the neck is spaced apart from the cavity.

Abstract: A pumping device includes a barrel, a top cover mounted on an open top of the barrel, a cylinder mounted in the barrel and connected to the top cover, a piston movably mounted in the cylinder, a plurality of check valves mounted on the piston, an operation unit mounted on the top cover and connected with the piston, a connecting unit mounted in the barrel and connected between the barrel and the cylinder, and a pressure adjusting unit connected between the barrel and the top cover. Thus, when the air pressure in the receiving chamber of the barrel reaches a predetermined value, the pressure adjusting unit provides a pressure release function to partially release the air pressure in the receiving chamber of the barrel so as to ensure a safe operation of the pumping device.

Abstract: A pumping device includes a barrel, a top cover mounted on the top of the barrel, a first switching valve mounted on the top cover, a base mounted on the bottom of the barrel, a second switching valve mounted on the base, a cylinder connected between the top cover and the base, a piston movably mounted in the cylinder, a plurality of check valves mounted on the piston, an operation unit connected with the piston, and a conduit connected between the barrel and the base. Thus, a user has to pull or push the first switching valve and the second switching valve simultaneously to extract or suck the fluid in the barrel so as to deflate or inflate the barrel so that the pumping device has a security process and is operated in a safer manner.

Abstract: A dispensing apparatus capable of being detachably coupled to a container for dispensing liquid from the container is disclosed. The dispensing apparatus includes a central unit, a pump, a release valve assembly, a pipe, and a nozzle. The central unit is configured to detachably couple with an opening of the container containing the liquid. The pump is configured at a first end portion of the central unit. The pump is operable to generate pressure within the container. The release valve assembly is configured in the central unit. The release valve assembly is capable of controlling a flow of the liquid from the container and dispensing the liquid. The pipe is attached to the release valve assembly. The pipe is capable of carrying the liquid to be dispensed. The nozzle is configured at a second end portion of the central unit and is capable of dispensing the liquid from the pipe.

Abstract: A fluid dispensing system includes a pump assembly for pressurizing a low cost container, the container non reversibly connected to a coupler module. A wand assembly is releasably connected to the coupler module. A discharge conduit fluidly connects the wand assembly to the container to displace a check valve in the pump assembly to permit flow from the pump assembly. The wand assembly includes a grip body slideable relative to the discharge conduit between a retracted storage position and an extended operable position.

Abstract: A multi-compartment spray dispenser with common pressurizer includes a single container divided into four sub-chambers, each of which is separate from each of the other sub-chambers. Each sub-chamber has its own separate outlet. A pumping mechanism is common to the sub-chambers and causes pressurization of the sub-chambers simultaneously. When it is desired to dispense liquid from one of the sub-chambers, a hose connection is coupled to the hose connection on the container, thereby opening a flow path for liquid through a hose connected to the hose connector and a nozzle having an actuating valve. Should flow of liquid slow, it is easy to re-pressurize the sub-chamber through operation of the pumping mechanism.

Abstract: A spreading device (10) includes an injector (14) and a spreading tube (16) connected with the injector. The injector contains therein a viscous thermal medium material for being spread on a surface of a cooling device for electronic components. The spreading tube defines therein at least one outlet hole (164) for release of the thermal medium material contained in the injector. The spreading device further includes means formed on the spreading tube for evenly distributing the material released through the outlet hole of the spreading tube over an entire area of the surface to be applied with the thermal medium material.

Abstract: Portable pneumatic washing device 10 having a body 1 consists of three axially arrayed pipes 11˜13, a transversal valve pipe 14. Pipe 11 impelled by a push rod 6 to pump air into body 1. Distal ends of pipes 12,13 connected to inlet, outlet orifices of the valve pipe 14 respectively. But a proximal end of the pipe 13 securely connected to a hole 15 at a proximal end of the body 1. A control valve 4 installed outside the sidewall of the body 1 switches on/off the inlet orifice 141 of the valve pipe 14. When the inlet orifice 141 open, a liquid retained in the body 1 flows through pipe 12, valve pipe 14 into a telescopic spray pipe 2 of the pipe 13 to spill liquid from the spray head 3 at a distal end of the spray pipe 2 outside the hole 15.

Abstract: The invention relates to a hydraulic actuator for actuating a gas exchange valve (1) of an internal combustion engine, which valve is especially closed by the effect of a spring. The actuator is configured by a feed pump (6) with intermittent and thus variable delivery. The feed pump (6) has a high frequency and can be equipped for this purpose with piezoelectric, magnetorestrictive and/or electrochemical actuators as the feed elements. Optionally, the feed pump (6) can be operated with a stop valve (7) that is disposed downstream of the gas exchange valve (1) and that is controlled or regulated depending on the feed pump.

Abstract: A dispenser for a liquid, in particular, a bottle-top dispenser, with a cylinder/piston arrangement with a measuring cylinder (1) and a piston (2) which is capable of being displaced therein in a sealed manner, with a valve arrangement (3) connected to the piston (2), with an inlet valve and an outlet valve (5), each provided with a valve body (6) and a valve seat (7). The dispenser is characterized in that all of the parts or regions of the dispenser touched by the liquid are made entirely of a pure thermoplastic material or are coated with a pure thermoplastic material in such a manner that no contact is made by the liquid with the substrate coated with plastic material or with components of the substrate.

Abstract: A liquid pumping device includes a base, a liquid container, a cover, a cylinder, a piston, an air guide pipe, and an operation handle. When the piston is moved upward, the fluid can only flow downward through the anti-reverse valves of the piston in a single direction, and the upward movement of the liquid is stopped by the anti-reverse valves of the piston. When the air guide pipe is moved downward, the fluid can only flow upward through the anti-reverse valves of the air guide pipe in a single direction, and the downward movement of the liquid is stopped by the anti-reverse valves of the air guide pipe.

Abstract: A liquid pumping device includes a base, a liquid container, a cover, a cylinder, a piston, an air guide pipe, and an operation handle. When the piston is moved upward, the fluid can only flow downward through the anti-reverse valves of the piston in a single direction, and the upward movement of the liquid is stopped by the anti-reverse valves of the piston. When the air guide pipe is moved downward, the fluid can only flow upward through the anti-reverse valves of the air guide pipe in a single direction, and the downward movement of the liquid is stopped by the anti-reverse valves of the air guide pipe.

Abstract: Valve for an aerosol container for dispensing a suspension of a substance in a liquid propellant contained therein. The valve comprises a valve body (1) having at least one orifice (16) to allow a quantity of the suspension to pass from the container into the valve. The valve further comprises a ring (18) disposed around the valve body (1), the ring being positioned below the at least one orifice to reduce the volume of suspension that can be accommodated within the container below the at least one orifice when the container is orientated with the valve at the bottom, the ring having at least one portion of reduced axial thickness to provide a trough (19) around the valve body below the at least one orifice.

Abstract: A pressurized container (A) for charging an undercup comprising a container main body (1) equipped with a bead portion (6) around an upper end open periphery thereof, a mounting cup (18) having a curve flange (18d) engaged with the bead portion (6) and an inner bag (2) having flexibility and interposed between the container main body (1) and the mounting cup (18), wherein the inner bag (2) includes a neck portion (10) in close contact with the outer peripheral surface of a rising wall of the mounting cup with a predetermined fitting strength and a flange portion (11) disposed at the upper edge of the neck portion and clamped between the curve flange and the bead portion, and the flange portion (11) exhibits a sealing action when pushed to the inner surface of the curve flange (18d) by a charging pressure at the time of charging of the undercup and a sealing action when it is clamped between the curve flange (18d) and the bead portion (6) after assembly.

Abstract: This invention relates to a reservoir (10) for a fluid product containing a single dose, the reservoir (10) comprising an air inlet (11) and a product outlet (15), the air inlet (11) comprising a product retention device (12 and/or 13) to keep the product in the reservoir (10) until dispensation of the product, and the product outlet (15) being blocked, preferably in a sealed fashion, by a closing ball (16) which is removed from its blocking position by the flow of air when the product is being dispensed. This invention also relates to the method of filling the reservoir and a dispensing device for the product contained in the reservoir using an air blast (20).

Abstract: A liquid sprayer incorporating an air pump to force pressurized air into the interior of a receptacle. The air pump is operated, by stroking of a cover. The cover has an opening allowing finger access to the plunger of a spray nozzle in one rotated position of the cover, the cover being held in that position. In another rotated position the cover is released for stroking. A piston on the cover projects into a central tubular portion on the cap with valving sealing allowing air to be drawn past the piston and forced into the receptacle. The spray nozzle is offset from the tubular portion and the plunger is accessible through the cover without removing the same.

Abstract: A hand-held foaming apparatus includes a pressure vessel for containing a foamable liquid and an air space overlying the liquid. A hand pump is mounted within the vessel and sealably connected to a sealable opening at the top of the vessel. The pump comprises an external handle connected to a piston that extends substantially to the bottom of the vessel. Actuating the pump by operating the handle causes formation of foam from the foamable liquid in the overlying air space and discharge of the foam from a foam discharge outlet that comprises foam discharge control means and is located on the vessel above the air space.

Abstract: Aerosol formulations for mucosal and/or topical administration containing one or more drugs and a sugar as a dispersant in a pharmaceutically acceptable propellant, are disclosed. Metered dose inhalers suitable for delivering such formulations are also disclosed.

Abstract: A hand-held compressed air duster apparatus comprises a pressurizable vessel for containing a fine particulate dusting material. The vessel has an upper shoulder provided with a sealable top opening, in which a hand pump is mounted and sealably connected to the top opening. The pump comprises an external handle connected to a piston extending into the vessel. A dust discharge outlet is disposed on the shoulder of the vessel. Located within the vessel are two concentric tubes. A rotatable outer tube having a closed lower end that is provided with a pivot foot in contact with the bottom of the vessel extends upwards to an open upper end that is in fluid communication with the interior of the vessel. The rotatable outer tube comprises a dust feed agitator pin extending outwardly from the outer surface of the tube.

Abstract: A portable dispensing apparatus in which a fuel containing chamber is pressurized by a hand operated air pump. The fuel is dispensed by a pickup tube whose receiving end is within the chamber where it is joined to a flexible hose equipped with a bellows; the opposite end being connected to a valved handle outside the chamber and includes a nozzle for dispensing the fuel. An actuation lever pivotally mounted to the handle allows the operator to control the flow rate and velocity of emitted fuel so that even incremental amounts can be dispensed without difficulty. The flexible hose can be stored in a skirt on the handle.

Abstract: A non-round pressure sprayer unit for dispensing liquids from a closed container including a pressure pump, tube/hose connection, and applicator wand. The pressure pump mechanism further includes a pump housing sealingly insertable in the pressure sprayer bottle, a plunger for reciprocating within the housing with an upstroke and a downstroke, and a pump piston at the lower end of the plunger. The pump piston includes a bottom closure for closing the lower end of the pump housing when the piston is lowered on the downstroke and capable of opening the lower end of the pump housing when the piston is raised in the upstroke. A pump seal seals the piston and the inner wall of the pump housing when the piston is on its downstroke but becomes unsealed on the upstroke of the piston.

Abstract: A pump actuated fluid dispenser for selectively dispensing a sporadic or continuous supply of fluid from within a container interior. The fluid dispenser comprises a main body mounted on a cap, a plunger shaft within the main body, and a trigger mounted to the main body and the plunger. A pumping cylinder extends downward from the cap, and houses a hollow tube that extends downward from the main body, such that the bottom of the tube allows fluids to pass therethrough from within the container interior and into the interior of the plunger shaft. A washer is mounted on the hollow tube that moves upward and downward within the interior of the cylinder. The cylinder has a one-way valve, which allows passage of air from within the cylinder to the container when the washer moves upward.

Abstract: An electrically powered device for dispensing particulate material by an air stream is formed from a housing with a handle portion and a reservoir portion which is positioned in front of the handle portion and includes an arcuately shaped bottom wall, a top wall, an exit passage associated with the top wall, and an inlet passage leading from the handle portion to the reservoir portion, and further including an air supply associated with the inlet passage for providing air thereto.

Abstract: A miniaturized device for pressurizing fluid. The device includes a hollow piston that provides a fluid path and a valve member. The valve member is configured for axial movement so that the valve axis remains parallel to the piston axis. The valve member is arranged at one end of the hollow piston. The valve member may be partially or completely disposed within the hollow piston. The device is particularly adapted for use in a mechanically operated atomizer to produce an inhalable aerosol of a liquid medicament without the use of propellant gas.

Abstract: A spray container for dispensing a liquid product as a fine mist incorporates a compliant bag-like inner reservoir in which the product to be dispensed resides. The container incorporates a built-in air pump for charging the chamber defined by the outer container with compressed air. A valve mechanism is provided which when actuated by depression of a push-button, causes a mixture of the compressed air and liquid to be dispensed to be ejected as a fine mist through a spray orifice.

Abstract: A non-round pressure sprayer unit for dispensing liquids from a closed container including a pressure pump, tube/hose connection, and applicator wand. The pressure pump mechanism further includes a pump housing sealingly insertable in the pressure sprayer bottle, a plunger for reciprocating within the housing with an upstroke and a downstroke, and a pump piston at the lower end of the plunger. The pump piston includes a bottom closure for closing the lower end of the pump housing when the piston is lowered on the downstroke and capable of opening the lower end of the pump housing when the piston is raised in the upstroke. A pump seal seals the piston and the inner wall of the pump housing when the piston is on its downstroke but becomes unsealed on the upstroke of the piston.

Abstract: An air pump is configured as a reciprocating compressor. On a fuel tank, there is fitted a cylinder of the air pump, in which an axially displaceable piston rod, having a handle and a piston, is coaxially disposed. The piston divides the interior of the cylinder into two chambers. The lower one of these chambers, lying closer to the fuel tank, communicates with the fuel tank via a first one-way valve, which permits only the entry of air into the fuel tank. The upper one of these chambers, lying farther from the fuel tank, communicates unchecked with the atmosphere. The one-way sealing of the piston against the cylinder allows the passage of air past the piston only in the direction from the upper chamber to the lower chamber. The piston rod is provided with a coaxial duct and a second one-way valve which is opposed to the first. The two chambers are able to intercommunicate via the coaxial duct and the second one-way valve, which, from a predetermined pressure, allows air to escape to the atmosphere.

Abstract: A pump assembly for a compression sprayer includes a cylinder and a piston reciprocal therein with means for releasably latching the piston in its fully inserted position. An integral cup and spring are coupled with the inner end of the piston with the spring biased against the inner end of the cylinder to cooperate in urging the piston outwardly to maintain the piston in its latched position. A handle for facilitating reciprocation of the piston is provided with a soft grip for comfort and reducing hand fatigue.

Abstract: A dispenser having a manually-operated dispensing valve assembly has a container for accommodating a spray product. The bottom of the container has a recess adapted to cooperate with a tube used to deliver air under pressure from an air pump into the container. The container includes a check valve which allows air to flow into the chamber of the container and prevent the flow of air out of the chamber of the container. When the container is placed on the air pump, it actuates a switch which energizes an electric motor which drives a pump for supplying air under pressure which is directed to the tube and into the chamber of the container past the check valve.

Abstract: A one time use non reusable sprayer includes a tank having a pump for pressurizing the liquid contents. A connection of the pump to the tank, if severed will result in destruction of the tank and pump to prevent reuse of the sprayer. The sprayer has a hose extending from the tank, a spray control valve and discharge nozzle for directing the spray.

Abstract: A compression sprayer is provided with a bag in the tank for holding the product to be sprayed. The bag may be initially provided in folded, collapsed, sealed condition containing the product in concentrated form. The folded bag is then mounted interiorially of the tank and filled with liquid to provide the solution to be sprayed. The bag unfolds as it is filled and thereafter is coupled with the tank outlet. An internally mounted pump assembly pressurizes the interior of the tank to compress the bag which collapses as the contained liquid is sprayed.

Abstract: A recreational vehicle winterizing device adapted for use in association with a recreational vehicle including a water supply system with a plurality of interconnected rigid pipes, the apparatus comprising: a canister formed in a hollow cylindrical configuration with an upper surface including an aperture, a cylindrical neck with screw threads being positioned around the aperture, antifreeze fluid being positioned within the canister, a tube being positioned through the upper surface and extending within the canister, the tube including a valve to enable the user to regulate the flow of antifreeze therethrough; and a pump assembly including a handle, a cylindrical member and a collar with screw threads, the collar threadedly coupling the cylindrical member through the neck of the canister, the handle having an upper extent including a gripping ring and a lower extent including a rod slidably positioned through the cylindrical member, a user gripping the handle and forcing the rod upward and downward thereby c

Abstract: A method for the manufacture of a substantially cylindrical, possibly conical, container (1) having a first (upper) opening (10) and a second (lower) end opening (28), in which connection, starting from a plastically deformable plastic tube (39) produced by an extruder, the container (1) is shaped in a blowing method by a blow mandrel (52) introduced into the first upper opening (10). In order to permit simple but nevertheless precise manufacture, the second (lower) opening (28) is closed by an axially movable closure mandrel (42).

Abstract: A biological agent growth-limiting and cross contamination suppressing foaming assembly. The foaming assembly comprises a disposable foamable-liquid transport and foaming cartridge and a housing cooperatively used with the cartridge to produce and dispense foam from the cartridge. The cartridge comprises a low-cost package comprising a molded tray which provides cavities for liquid containing chambers, air and liquid communicating channels, and initially sealed but frangible ports and a liquid impervious sheet which covers an open face of the tray to seal otherwise open portions of the chambers, channels and ports. The housing comprises a vertical wall mounting plate, a cartridge accommodating and servicing cover hingeably affixed to the mounting plate, a pump which provides pressurized gas to produce the foam within the cartridge, and sharpened stems or shafts to open the frangible ports.

Abstract: A pump assembly for a compression sprayer includes a cylinder and a piston reciprocal therein with means for releasably latching the piston in its fully inserted position. An integral cup and spring are coupled with the inner end of the piston with the spring biased against the inner end of the cylinder to cooperate in urging the piston outwardly to maintain the piston in its latched position.

Abstract: A container (1) for the dispensing of liquid (2), in particular for dispensing in spray or foam form, with dispensing nozzle (D) arranged on the top side of the container (1) and a pump handle (15) for a pump (P) which is associated with the container and has a pump cylinder (11), a piston rod (16) and a pump piston (22) for producing a pressure cushion above the surface (14) of the liquid. The pump chamber (21) has an air inlet valve (V1) and an air outlet valve (V2), and, in order to obtain a structural form which is dependable in function and favorable in use, the air outlet valve (V2) comprises two valves (34, 35) which are connected one behind the other and between which an air volume can be enclosed.

Abstract: The dispensing apparatus for a liquid spray or a foam includes a reservoir chamber; a manually operable air pump device for pressurizing the reservoir chamber with pressurized air, the manually operable air pump device including a nondetachable operating handle in a bottom region of the apparatus, a piston pump responsive to the operating handle for pressurizing air and a pressure equalizing valve communicating with an outer atmosphere; a metering valve connected with the reservoir chamber through which the foam or liquid spray is dispensed and a one-way valve connecting the manually operable air pump device with the reservoir chamber to permit flow from the manually operable air pump device to the reservoir chamber and to prevent flow from the reservoir chamber to the manually operable air pump device; and a motor driven pressurized air filling device for feeding pressurized air to the reservoir chamber for professional applications requiring repeated pressurization.

Abstract: A biological agent growth-limiting and cross contamination suppressing foaming assembly. The foaming assembly comprises a disposable foamable-liquid transport and foaming cartridge and a housing cooperatively used with the cartridge to produce and dispense foam from the cartridge. The cartridge comprises a low-cost package comprising a molded tray which provides cavities for liquid containing chambers, air and liquid communicating channels, and initially sealed but frangible ports and a liquid impervious sheet which covers an open face of the tray to seal otherwise open portions of the chambers, channels and ports. The housing comprises a vertical wall mounting plate, a cartridge accommodating and servicing cover hingeably affixed to the mounting plate, a pump which provides pressurized gas to produce the foam within the cartridge, and sharpened stems or shafts to open the frangible ports.

Abstract: A method for dispensing a protective fluid is set forth wherein a container is provided formed with a transparent storage portion threadedly receiving a cap thereto. The cap includes a lower end formed with a series of alignment bores for receiving tubular projections integrally formed coaxially upon an exterior surface of the portion of the cap to enable reciprocation of the upper portion relative to the lower portion. Positioning rods are positioned adjacent each of the bores to provide an abutment to enable effective alignment of the projections with the bores. The container is filled with a lemon juice concentrate, whereupon the container is prepared for transport by an individual. The upper portion of the cap may be rotated relative to the lower portion of the cap to permit reciprocation and projection of the lemon juice spray upon an attacker imposing oneself upon an individual.

Abstract: A dual function trigger sprayer in which a pump housing is formed with fastening means thereon to secure the housing to a shroud, and has structure at opposite ends defining an inlet chamber and an outlet chamber, respectively. A double ended piston is reciprocable in the housing to effect dispensing of product from a container on which the sprayer is attached, and an outlet valve controls flow from the outlet chamber. A passageway extends through the piston to enable flow between the inlet and outlet chambers, and a restrictor is associated with the passageway to restrict flow between the chambers in such a way that a relatively slow actuation of the piston will result in product flowing from the outlet chamber back into the inlet chamber, defining a child safety feature. Relatively firm, rapid actuation of the piston, on the other hand, will cause the outlet valve to open for dispensing of product.

Abstract: A tamper evident manually actuated pump sprayer includes a locking device which, according to one embodiment, extends between the trigger actuator and a confronting portion of the pump body and abuts against a trigger flange. In another embodiment, the device engages the underside of the trigger and snap fits into the sprayer nozzle cap located adjacent the trigger.

Abstract: The fluid dispensing apparatus includes a body portion supporting a pump assembly and a valve assembly. A fastening ring has an internal screw-thread for screw-threadedly engaging the neck of a container. A fastening ring retaining member allows the ring to rotate freely with respect to the body portion but also has a central opening for accommodating a fastening member which acts both to lock the member to the body portion and to couple with an outlet duct in the body portion leading to the valve assembly. In addition the member defines a separate passage which provides communication between the pump assembly and the interior of the container. The fastening member has a central opening for receiving a pipe which is arranged to extend to the bottom of the container.

Abstract: A closure to be applied to a container for holding a liquid such as shampoo. The closure comprises a closure body, a discharge liquid tube extending through the closure body and a reciprocating air pump mechanism built in the closure body. The air pump mechanism includes a cylinder whose discharge side communicates with the inside of the container and whose intake side communicates externally of the container, a piston, and a spring for elastically biasing the piston toward the intake side. The piston has a rod whose free end portion extends outwardly of the closure body.

Abstract: This invention pertains to a sprayer for insecticides. The sprayer consists of a tank and a cover assembly which includes an air pump for pressurizing the tank. The tank has a funnel-shaped neck which is engaged by the cover to form an air-tight enclosure. In order to insure that the cover does not separate suddenly when it is opened while the tank is still pressurized, the neck is provided with extrusions which do not permit the closure to separate from the tank as air is bleeding out of the tank.

Abstract: An air pressure type compound insulated container capable of providing cold and hot water or different kinds of beverages is disclosed. The container comprises a cover assembly, a cover seat, a discharging pipe assembly, insulated flasks, and a bottle casing. The cover assembly comprises a cover, a twisting member, an air pump, a control member and a fixing plate wherein the twisting member, the air pump and the control member are situated between the cover and the fixing plate. By the operation of the twisting member which drives the control member and exerts force to the air pump for introducing compressed air into a flask, any beverage contained in the flask flows out through an outlet pipe. A projecting lug is provided to control the twisting member so as to maintain the container in closed position.