Abstract: This invention is directed to an aerosol container system with two separate chambers, each of which contains a component to be mixed with the other component just prior to use.

Abstract: A valve to be installed on containers for fluid materials is formed by two coaxial chambers (3) and (4) one of which is internal (3), contains the fluid material and is equipped with a movable piston (10) and a discharging valve (7) including at least one "bypass" hole (8) which connects the two coaxial chambers (3) and (4) in the area between the maximum level of the fluid (18) and the discharging valve (7). An elastic sheath or rubber ring (5) is provided to close and wrap tightly the hole (or holes) (8).

Abstract: A spray head for use with a receptacle containing a liquid which is maintained under pressure by a propellant gas, thereby enabling a product to be packaged so that it is protected from coming into contact with the air, the spray head being of the type comprising a manually-operated precompression pump which includes a pump chamber comprising first and second cylinders (11, 15) capable of engaging telescopically, said chamber being closed by relative displacement of said cylinders, said first cylinder being integral with the pump outlet valve and being provided at one of its end with a circular sealing lip (12) capable of engaging against and of sliding along the wall of said second cylinder, which second cylinder is in communication with the inside of the receptacle, said wall being provided at at least one of its ends with fairly substantial relief (18, 25) such that when said sealing lip lies over said relief and said relief causes sealing to be broken, a passage is opened suitable for passing gas at a rat

Abstract: An apparatus for facilitating the filling of a spray device, the spray device being constituted by a receptacle and an extraction and projection pump mounted on the receptacle. The pump is of the precompression type and includes a valve member (8) having a pin (9) which is held pressed against a seat (7) by a spring (10) whose characteristics determine the degree of precompression. The seat is formed around the axis of the delivery piston (4) of the pump, and wherein breakable or deformable projections (15) are formed on the valve member suitable for holding the valve open so long as said projections are not destroyed or deformed.

Abstract: An aerosol can containing a liquid propellant is placed on a can support platform (44). An operator actuated fluid control switch (84) provides pneumatic fluid or compressed air to a pneumatic cylinder (46) which continuously biases the aerosol can upward into engagement with a reservoir outlet (66) of a liquid reservoir (60). A sensing switch (52) senses movement of the can support, hence, the aerosol can. An operator actuated start valve (92) enables compressed air to be supplied cyclically (78a, 78b, 96) to a pump pneumatic cylinder (70). A pump (74) driven by the cylinder cycles a preselected number of times as counted by counter (90) to pump a preselected amount of liquid from the reservoir through the reservoir outlet and into the aerosol can.

Abstract: Apparatus for the discharge of fusible materials from a container under a pressure higher than the normal atmospheric pressure by compressed air of laboratory purity or compressed from fresh air, wherein a common tank (1) suitable for receiving the fusible material (8) and the compressed air, is connected to an assembly head (6) by a pipe nipple (9), where lock valve (2), a nozzle (3) and a spring-supported (4) actuating key (5) are arranged in the assembly head (6) for actuaing the discharge process when the key is pressed down. Also a process for the filling and/or refilling of tanks suitable for the discharge of fusible materials from enclosed space is provided wherein air is used for discharging the fusible material.

Abstract: The device (102) is intended to inject a gas under pressure into an aerosol receptacle (100) through a pump or spray head crimped onto said receptacle. The purpose of the gas is to prevent air from penetrating into the aerosol receptacle as the liquid contained therein is sprayed out. The device is actuated by the pressure of the filling gas and it includes a damping system for ensuring uniform operation.

Abstract: An improved aerosol assembly is disclosed for filling an aerosol container having an aerosol valve and a mounting cup turret with a turret aperture for receiving a valve stem. The aerosol container receives an aerosol product for discharge through the valve stem upon opening of the aerosol valve. The invention comprises a valve button having a terminal orifice established for communication with the valve stem and for opening the aerosol valve depression of the valve button. The valve button has a valve button recess for at least partially receiving a portion of the mounting cup turret when the valve button is in a depressed position. A filling aperture extends from an outer surface of the valve button to the valve button recess.

Abstract: In order to fill a container having a check valve with a spontaneously foaming filling material, the latter is introduced through the check valve already mounted at the container. In a piston arrangement as the filling device, filling material to be filled in is sucked into a mixing chamber (65) by means of a metering piston (60), foam gas is injected through the piston rod (58) of this piston, filling material and gas are mixed by means of a mixing piston (56), then forced by means of the metering piston (60) through the check valve into the container. This prevents frothing of the filling material, intermixed with foam gas, at any point in time between mixing and filling. During mixing, slight foaming is desirable in order to increase the absorption capacity for the foam gas.

Abstract: A pressurization pouch having a pressurization system therein activated by the application of a vacuum underpressure to the outside surfaces of the pouch is inserted into a dispensing container through an opening in a lid portion of the container. Upon the sealing of the container by the attachment of a valve member to the container lid at the opening thereof, a vacuum generator is coupled to the valve member to generate negative pressure inside the dispensing container, thereby causing the pouch to expand under the pressure of a predetermined amount of air disposed therein. Upon that initial expansion, the pressurization pouch is further inflated owing to the action of the pressurization system. Upon complete inflation of the pressurization pouch, the pouch forms a liner in the dispensing container. A flowable product is then injected into the dispensing container through the valve member.

Abstract: A system is described for changing over propellant feeds to an aerosol can filling operation and for servicing filling heads without venting propellant to atmosphere. Instead, the propellant is collected in a scrap salvage tank.

Abstract: A spray dispenser for a liquid to be sprayed has a container provided with an inlet valve adapted for connection to a source of pressurized driving gas for pressurizing a head space above the liquid in the container. A spray head including a spray nozzle is mounted to the container and connects through a dispensing valve to a dip tube extending to the vicinity of the container bottom, such that opening of the dispensing valve causes pressurized discharge of the liquid through the spray nozzle.

Abstract: The invention relates to a dispensing valve comprising a body formed of a cylindrical casing of rigid material closed by a cover, in which two seals having fluid-tight joints create a lock chamber inside which moves an atomizer provided with a sliding distributor, guided at its ends, which a return spring placed upstream urges towards the cover. The valve has a sleeve allowing alteration of the volume of the chamber and a front seal formed as a separate member, both formed of semi-rigid plastic material. The seal is disposed immediately adjacent an abutment surface formed in the casing. The design is such that entry of liquid during filling takes place through an auxiliary duct and the front seal and sleeve may be formed as a single member if desired.

Abstract: A valve cup for use in an aerosol dispenser is configured to provide an anti-seating feature. In one embodiment, dimples are impressed in the sidewalls of a valve cup to inhibit seating of the valve cup flange on the circular shaped ring around the periphery of an opening at one end of the aerosol dispenser. In a second embodiment, detents are placed on the edge of the flange in which the sidewalls of the valve cup terminate to inhibit the seating of the flange on the circular shaped ring.

Abstract: A method and apparatus for forming and packaging, within a suitable container for the dispensing thereof, an unstable product produced by intimately mixing at least first and second ingredients, the resulting unstable product remaining stable following the mixing of the ingredients for a relatively short period of time under normal ambient conditions, the method including the steps of providing streams of the ingredients, intimately mixing the ingredients in a filling head, ejecting the mixture from the filling head into a container, and sealing the container prior to the elapse of the relatively short period of time.

Abstract: A method of automatically mixing predetermined quantities of liquid organic compound and liquid propellant is disclosed. A metering cylinder is filled from a storage reservoir of a liquid organic compound and then disconnected from the reservoir. Then one end of the metering cylinder is connected to a source of liquid propellant, the other end is connected to a mixing vessel, and vapour pressure of the liquid propellant is utilized to force all of the liquid organic compound into the mixing vessel, together with a predetermined volume of liquid propellant.

Abstract: Valves connected to dip tubes in conventional pressurized "aerosol"-type containers for dispensing materials which react or cure upon dispensing (e.g. moisture-curable polyurethanes), are protected against premature failure by introducing a small amount of dry, inert gas into the dip-tube shortly after charging the container. The gas (e.g. nitrogen) acts as a barrier to prevent contact between the product in the container and the valve mechanism prior to use of the product. Preventing such contact avoids premature hardening of product in the valve mechanism caused by reaction of product with moisture.

Abstract: The valve comprises a stationary part (1, 2), a mobile part (9) and a fluid-tight seal (15). This fluid-tight seal (15) consists of two portions (16, 17) axially separated by a cylindrical part (18). During filling, the connection (30) of the recharging tank moves the mobile part (9) downward against the action of a spring (10). A projection (31) works with the portion (16) of the seal to bring this latter downward. A ramp (32) guides the portion (17) of the seal to the connection (30). At the end of the path, this portion (17) is squeezed between the stationary part (1, 2) and the connection to assure a complete fluid-tightness of the filling passage (25) to the outside and a perfect separation of the two filling (25) and escape (21) passages. In the closed position of the valve, the upper part of the part (9) is engaged in the opening provided for the passage of the connection ( 30).

Abstract: A refillable pressure spray container comprises a container having a filling and dispensing nozzle extending outwardly from a cap secured thereon, the nozzle being received in a quick disconnect coupling attached to a motor-driven pump. The quick disconnect coupling has a valve actuating member to raise a valve plunger in the nozzle when inserted into the coupling to establish communication between the pump and the interior of the container. The motor pumps air or gas under pressure into the container. At a predetermined container pressure, a relief valve deactivates the pump. When the container nozzle is removed from the coupling, the plunger closes communication between the container and the pump to pressure seal the contents within the container. A conventional spray nozzle is attached to the plunger for using the refillable container as a conventional aerosol container.

Abstract: A method and apparatus for filling aerosol cans having two compartments separated by a flexible or mobile partition. Most of the air contained in a first compartment is removed before a substance to be packaged is introduced. The substance is introduced by a metering device without coming into contact with the atmosphere, either before or after a valve has been fitted. In the latter case, the valve is opened and the substance passed through it.

Abstract: Apparatus, particularly electrostatic spraying apparatus, comprising a container and an enabling device wherein the container has a discharge valve that is held in the closed position by sprung member(s) that can be urged out of engagement, so as to permit valve actuation, upon connection of the enabling device to the container.

Abstract: A method and apparatus for pre-charging the pump chamber of a discharge pump on a container such as a fluid atomizer primes the pump for dependable operation thereafter. The method includes opening the outlet valve of the discharge pump by operating the pump to its full displacement, and applying a vacuum to draw container contents into the pump chamber, just up to the outlet valve. The apparatus for practicing the method includes a controllable vacuum head adapted to engage an outlet channel of the container, the vacuum head also being movable to engage and move the pump. The apparatus can incorporate an indexing feeding arrangement for delivering articles to the vacuum head, and a blast of pressure may be applied upon completing the process, to release the containers from the vacuum head and securely close the pump outlet valve.

Abstract: A dispensing pump is adapted for pressure filling and includes a fluid filling passage which remains sealingly closed during pumping operation by the provision of an annular valve skirt in sealing engagement with a wall of the fluid filling passage, such skirt inwardly flexing during charging the container permitting the charged fluids to by-pass the valve and enter the container. The valve skirt depends from either the plunger head or from the plunger. When depending from the plunger, the valve skirt functions as a guide element for the plunger head together with a plunger head retention bead which cooperates with a pump body retention bead in limiting the upward movement of the plunger head to a predetermined extent. These guide members serve to isolate the plunger against the influence of lateral or eccentric forces applied against the plunger head during its reciprocation.

Abstract: A spray device comprising a bomb, a measuring container housed in the bomb, and a plunger valve adapted to discharge a medicinal liquid and having a valve cutout at its lower end. The plunger has a medicinal liquid replenishing port formed in a radial direction at a portion thereof other than the cutout portion, communicating with a channel in the plunger and usually covered with a sleeve portion of the measuring container. When the bomb is empty or is emptied of the liquid, a new medicinal solution or replenishment is charged into the bomb from outside through the plunger. The peripheral side surface of a neck portion of the plunger and the top outer surface of the bomb close to the surface are formed with marks for setting the valve in position for replenishment.

Abstract: In a valve assembly for a pressurized dispenser, such as of the kind commonly known as aerosol cans, a novel arrangement is proposed for sealing the spray tip or button to the ferrule or center boss of the mounting cup of the valve during `gassing`. An inwardly directed annular shoulder formed in the top wall of the ferrule or center boss is engaged by an outwardly facing annular surface on the underside of the spray tip and the higher the pressure the better the seal. As the spray tip no longer needs to be as flexible as hitherto it can be made of polypropylene. A complementary outward-facing shoulder on the underside of the top wall helps to locate the rim of the valve shell and thereby to resist displacement of the gasket during gassing.

Abstract: A pressurized dispenser which includes a container, a mounting cup with a central opening attached thereto, a dispenser having a body member forming a tank and an open top portion, a dispensing stem projecting through the central opening, the body retained in the mounting cup, and a diaphragm interposed between the body and the mounting cup sealing around the projecting stem. The body member forms a chamber having a diameter smaller than the diameter of the tank axially inward of the tank, to form a bottom in the tank at the point where the chamber begins. At least one hole is formed in the bottom radially outward of the chamber forming a path to the inside of the container. A piston-like member inserted into the tank extending to its bottom has a flange extending axially inward terminting in a sealingly lip sealing against the side of the tank at the bottom and an annular portion axially inward of the sealing edge forming a throat, with the valve stem extending through the throat.

Abstract: This invention concerns apparatus for injecting a special ingredient into a pre-filled product container having superatmospheric internal pressure. Structurally, a coupling member is fabricated to define a cavity that snugly receives a portion of the container body to establish alignment therewith. This coupling member includes a mounting structure for use in positioning a syringe assembly with respect to a pierceable portion of the container body. A syringe assembly includes a syringe body that is mounted on the mounting structure and defines an internal chamber for containing a metered amount of a fluid product ingredient or amendment, the syringe assembly further including a cannulated needle fastened to the syringe body in fluid-transfer relationship with the product ingredient chamber. A wrench member is assemblable with the coupling member and includes an actuator for selectively engaging the syringe assembly and forceably reducing the internal volume of the product ingredient chamber.

Abstract: This relates to an aerosol container of the type wherein the product is maintained separate from the propellant in a product bag. The propellant is placed into the container around the product bag through an opening in the top of the container, which opening is normally closed by a valve cup. The neck of the product bag is so positioned when the product bag is seated on the container that an annular flange thereof is vertically spaced over an associated container flange so that propellant may flow into the container without holding either the annular flange or the valve cup in an elevated position. The neck is resiliently deformable so that the valve cup may be first positioned on the container and bonded to the annular flange, after which, when the valve cup is released, the neck will axially extend to lift the valve cup to an out-of-the-way position to permit propellant charging.

Abstract: Reusable pressurized containers are disclosed for dispensing fluids from the container without release of the pressurized propellant to the surrounding environment. The propellant is contained in a sealed, flexible compartment positioned within the container as a mixture of gas and liquid under pressure in equilibrium at the temperature of the container. A pressure transfer liquid, such as water, is used to liquefy the propellant in the compartment. The pressure transfer fluid also contacts the fluid or semi-solid to be dispensed and exerts pressure thereon to force the fluid to be dispensed out of the container. The liquefied propellant, as it vaporizes, maintains the pressure against the pressure transfer fluid essentially constant. The propellant in the flexible compartment is preferably a mixture of a liquefiable propellant gas or blend thereof and a nonliquefiable inert gas such as nitrogen or helium.

Abstract: Device for the refilling of double-chamber pressure packet spray containers comprising an electromotor with a dosing pump which pumps the filling product from a storage container via a supply line to a filling tube, the tube corresponding with the spray valve of the container. A two-way solenoid valve is disposed in the feed line of the filling tube.

Abstract: A pressurized dispenser including a container, a mounting cup having a central opening therein, said mounting cup attached to said container, a dispensing means comprising a body member forming a tank and having an open top portion with a dispensing stem projecting therefrom through said central opening in said mounting cup, said body retained in said mounting cup, and a diaphragm interposed between said body and said mounting cup, sealing around said projecting stem at least when said stem is in an unoperated position, a passageway is formed in the body extending across the top of said body and through the body, the passage in communication with the tank in the area below the diaphragm, an annular gasket is interposed between the mounting cup and container, the gasket having an opening with the same profile as the outside of the body disposed so as to seal against the body to interrupt communication between the passageway and container, so that, during pressure filling, when pressure medium is supplied to th

Abstract: A dispensing device for a pressurized liquid container capable of delivering metered quantities of an aerosol composition having a discharge tube through which the container can be filled with fluids under pressure including a generally cylindrical chamber including an upper chamber and a generally cylindrical lower chamber, a discharge tube mounted in the sealed upper end of the chamber and extending into the chamber, the discharge tube being axially movable in the chamber and having a cup-shaped piston member connected thereto, the cup-shaped piston having a resilient rim slidable within the lower chamber when the discharge tube is depressed a predetermined amount to isolate a metered quantity of fluid within the upper chamber, the rim of the cup-shaped piston member being sufficiently resilient to allow fluids introduced under pressure through said discharge tube during filling of the container to flow between the rim and the side walls of the lower chamber.

Abstract: In an aerosol type container having a pressure chamber, a product containment sack of an impervious flexible material is centrally retained. The aerosol container is provided with an annular opening defined by an annular lid curl. The lid curl is interlockingly engaged by a collar portion of the sack. A modified valve assembly is sealingly secured within a neck protruding from the sack collar. The sack collar acts as a one-way valve allowing a pressurizing agent to be introduced for the purpose of maintaining a desirable pressure within the container pressure chamber. The invention pertains to pressurizing, sealing and sack retainment of such dispensers.

Abstract: A system of fastening an apparatus on a cartridge of fluid under pressure provided with a dispensing and/or filling valve and an annular bead surrounding the said valve, this fastening system, which comprises:a central core for fastening the said apparatus, comprising fluid dispensing means intended to cooperate with the valve of the said cartridge;a tubular sleeve surrounding the central core, movable axially relative to the latter, and provided with radial claws adapted to clip onto the bead of the cartridge;an annular stop serving as support against the bead of the cartridge;means of axially displacing the tubular sleeve, is characterized in that the annular stop is separate from the tubular sleeve and axially fixed relative to the central core and has an operative face against which the annular bead of the cartridge comes to bear when the said sleeve is displaced axially in the direction of the apparatus.

Abstract: Reusable pressurized containers are disclosed for dispensing fluids from the container without release of the pressurized propellant to the surrounding environment. The propellant is contained in a sealed, flexible compartment positioned within the container as a mixture of gas and liquid under pressure in equilibrium at the temperature of the container. A pressure transfer liquid, such as water or compressed air, is used to liquefy the propellant in the compartment. The pressure transfer fluid also contacts the fluid or semi-solid to be dispensed and exerts pressure thereon to force the fluid to be dispensed out of the container. The liquefied propellant, as it vaporizes, maintains the pressure against the pressure transfer fluid essentially constant. The propellant in the flexible compartment is preferably a mixture of a liquefiable propellant gas or blend thereof and a non-liquefiable inert gas such as nitrogen or helium.

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

Abstract: A hair sprayer provided with a spray nozzle and a cylindrical body which is partially or entirely transparent or translucent and is capable of accommodating a hair dressing liquid and pressurized air and being provided with an air pressure inlet having a built-in check valve that allows injection of pressure air into the cylindrical body and the cylindrical body being provided with a lid through which the liquid can be supplemented when needed.

Abstract: A valve for an aerosol container, of the kind which is adapted to pass propellant into the container to pressurize the aerosol product, has a dip tube which is arranged to act as a diffuser. The propellant is thereby caused to enter the product as a large number of small bubbles rather than a much smaller number of larger bubbles. By thus improving the rate of solution of the propellant in the product the propellant charging times can be substantially reduced.

Abstract: A container filled only partially with a pre-measured, exactly apportioned quantity of liquid active ingredient for one-time use closed in a pressure-tight manner by a closure made at least in part of a resilient material having self-resealing characteristics after piercing with a needle, and a reservoir filled with an aerosol propellant of a type incompatible with said active ingredient after a relatively short time when intermixed. The reservoir has a discharge valve with a hollow needle pushed through the resilient material of the closure and held by the material in a fluid-tight manner, whereby the container can be filled with the propellant only shortly before use of the active ingredient.

Abstract: A self-threading container closure for a spiral wound tube useful as a container for fluids under pressure. The closure insert includes side threads in conjunction with a spherical arch and support legs. The threads permit the insert to be screwed into the walls of the tube and allow the spiral wound media to form around the closure in a liquid and pressure tight seal. This seal is enhanced by a transfer of outward fluid pressure on the spherical arch through the support legs to the threads and container walls.

Abstract: A can for spraying atomized liquids comprising a pair of coaxial cylinders, the outer cylinder forming the sealed can body. The liquid to be atomized and sprayed is contained within the central cylinder above a piston. The central and outer cylinders are in fluid communication through openings in the central cylinder near the bottom of the can. The piston, which is double-ended, is movable located within the central cylinder. A gas or other fluid under pressure is located in the volume between the central and outer cylinders, thus exerting a force on the bottom of the piston to drive the fluid to be sprayed out of the central cylinder when the atomizing valve is manually actuated.

Abstract: An airless sprayer having the capability of replacing most if not all of the so-called aerosol sprayers with improved performance, reduced cost and elimination of potential damage to the environment from an aerosol propellant. The unit is refillable by the user at any time suiting his convenience. The liquid to be sprayed is contained in a first chamber above an internal free-floating piston powered by air pressure in a second chamber below the piston. The system includes a unique compressor unit for automatically pumping air at operating pressure into the lower chamber.

Abstract: A heat actuated valve comprises a base adapted to be mounted on a fire extinguisher container. The base includes a passsage communicable with the container interior. A pair of stop fingers extend forwardly from the base. A fusible element interconnects the stop fingers. The base, stop fingers and fusible element are of one-piece, integral construction. A plunger is slidably mounted in the passage and includes a passage-blocking portion which blocks the passage when the plunger abuts the stop fingers during a fire sensing mode of operation. The plunger is slidable rearwardly to shift the passage-blocking portion to a first passage-opening position to allow the container to be filled. The plunger is operable, in response to melting of the fuse, to spread the stop fingers apart and travel forwardly sufficiently to shift the passage-blocking portion to a second passage-opening position, enabling the container contents to be discharged.

Abstract: An arrangement in liquid sprayer containers designed to form an excess pressure inside the containers so as to allow the liquid contained therein to be discharged through a nozzle in the form of a spray. The arrangement inclues a head provided with a manually operable valve mechanism. The nozzle is in communication with the valve mechanism and arranged, upon opening of the valve, to discharge the liquid in atomized form. A cap encloses the head and when forced downwards it compresses the air in the space enclosed by the cap, whereby the valve opens a passage allowing the excess pressure to propagate into the container. Upon elimination of the excess pressure the valve mechanism again closes the passage.

Abstract: In a spraying container structure, before the sealing and blowing operations there is mounted in the valve body comprising a housing and a cover which is provided with a temporary sleeve, a closure member which is adapted to cooperate with a sealing element to close the valve. The closure member is maintained in the valve open position in the valve body during the production of the container.

Abstract: A method for rapidly filling an aerosol spray dispenser containing a liquid with a soluble gas propellant including lifting the cap off the container and injecting the propellant into the container at a velocity sufficient to substantially saturate the liquid with the propellant.

Abstract: A valve for a pressurized aerosol dispenser comprises an axially movable, tubular valve body, a piston attached to the valve body, and an annular elastomeric gasket which encompasses the valve body and overlies the piston to provide an annular chamber therebetween when the valve is open. The valve body includes a cylindrical bore through it blocked by a wall which separates the bore into an education passageway and a discharge passageway. Vertically spaced, inlet and outlet orifices communicate with the education and discharge passageways, respectively, with the inlet orifice located above the outlet orifice. The chamber communicates the orifices with each other when the valve is open. The inner margin of the gasket normally sealingly occludes both orifices to close the valve. The vertical spacing between the orifices provides occlusion of the inlet orifice before the outlet orifice as the valve moves toward closure. Only some parts of the orifices need be vertically spaced.

Abstract: Method and apparatus for pressurizing a reservoir comprising directly introducing gas into the reservoir from a first supply source in an amount to instantly pressurize the reservoir and balancing the pressure between a second supply source for service gas and the reservoir via a regulating valve mechanism which controls admission of gas under pressure from the second source into the reservoir when a differential exists between the second pressure source and the pressure prevailing in the reservoir due to its connection with the first pressure source.