US3289949A - Pushbutton dispenser for products in the fluid state - Google Patents

Pushbutton dispenser for products in the fluid state Download PDF

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US3289949A
US3289949A US39468564A US3289949A US 3289949 A US3289949 A US 3289949A US 39468564 A US39468564 A US 39468564A US 3289949 A US3289949 A US 3289949A
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Prior art keywords
pushbutton
reservoir
cup
member
propellant
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Roth Willy
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Geigy Chemical Corp
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Geigy Chemical Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2424Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together downstream of the container before discharge
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/06Sprayers or atomisers specially adapted for therapeutic purposes of the injector type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/16Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
    • B65D83/20Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60Contents and propellant separated
    • B65D83/66Contents and propellant separated first separated, but finally mixed, e.g. in a dispensing head

Description

Dec. 6, 1966 w. ROTH 3,289,949

PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 1 FIG I INl ENTOR.

AMI/y Raf/r w I I I q a N fi m/PM A TTORNEYS Dec. 6, 1966 w. ROTH 3,289,949

PUSHBUTTQN DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 2 l INVENTOR Willy Rot/r mmM/WUM ATTORNEYS Dec. 6, 1966 W. ROTH PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 3 A TTORNEYS Dec. 6, 1966 W. ROTH 3,289,949

PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 4 FIG 7 IN VEN TOR. Willy Raf/1 BY WM,M Z

ATTORNEYS Dec. 6, 1966 w. ROTH 3,289,949

PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 l 9 Sheets-Sheet 5 WI INVENTOR.

i/ R fl; Mam/M ATTORNEYS W. ROTH Dec. 6, 1966 PUSHBUTT ON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 $heetsSheet 6 37|o SEE f G. 38") 1- W I INVENTOR.

i/y Rafi; Mi M A TTOR/VEYS Dec. 6, 1966 w. ROTH 3,289,949

PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 7 IN VENTOR.

Willy Raf/r WM,M M

ATTORNEYS Dec. 6, 1966 w. ROTH 3,289,949

PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE Filed Sept. 8, 1964 9 Sheets-Sheet 8 I06 K -13 5/ z \r ml 251 I i 3 1/ 4'2 62m I 8|4 I I 244 WZTA'AQTLWT" I 9l4 l4 W IN VENTOR. l Raf BY M ATTORNEYS W. ROTH Dec. 6, 1966 PUSHBUTTON DISPENSER FOR PRODUCTS IN THE FLUID STATE 9 Sheets-Sheet 9 Filed Sept. 8, 1964.

Willy ATTORNEYS Fatented Dec. 6, 1966 3,289 949 PUSHBUTTON DHSPENS ER FOR PRODUCTS IN THE FLUID STATE Willy Roth, Aarau, Switzerland, assignor to Geigy Chemical Corporation, Greenlsurgh, N.Y., a corporation of This invention relates to an apparatus for dispensing a product in the fluid state such as a liquid or a powdery product. Where the product is a liquid, this dispenser makes it possible to atomize the liquid in question as it is dispensed.

The dispenser of this invention is of the type comprising a receptacle fitted with a pushbutton actuated valve and using a gas under pressure (in particular a liquefied gas), as the propellant agent, this gas being contained in a reservoir separate from that which contains the fluid to be dispensed.

There presently exists in the art fluid dispensers with atomizers which comprise an outer receptacle having a pushbutton actuated valve thereon and containing an active liquid to be dispensed. Within this outer receptacle is mounted a reservoir of propellant agent, such as a liquefied gas, and the reservoir is connected with the valve. Downstream of this valve is an atomizing nozzle, for instance a convergent-divergent nozzle, and one end of a tube opens in the immediate vicinity of a nozzle while the other end of the tube is immersed in the liquid in the outer receptacle.

When the pushbutton is pressed the valve is opened. The propellant gas vaporizes and in escaping through the nozzle it creates a reduced pressure zone which sucks the liquid to be atomized and dispensed through the tube. This liquid is broken up into fine droplets and is projected into space by the gas flowing through the nozzle. The importance of such a device is that it permits a complete separation of the propelling agent and the liquid to be dispensed and atomized during storage prior to dispensing, the two products only coming into the presence of one another during an extremely short interval of time at the exact moment of atomization and dispensing. In this way the drawbacks of the conventional aerosol bombs due to incompatibility between the liquefied propelling agent and the active agent to be atomized and dispensed are overcome.

However, a device of the kind described above has the drawback of not permitting the liquid which is the active agent from being sealed off from the atmosphere, and this liquid may thus evaporate, deteriorate or otherwise escape from the receptacle.

To overcome this drawback it has been proposed to mount on the head of the atomizer-dispenser a fluid-tight obturator which closes the outlet orifice of the automization nozzle. However this system is very complicated to produce and to handle.

Atomizer-dispensers are also known which have a triple obturator, with centralized pushbutton control for the triple obturator.

One such atomizer-dispenser comprises two identical aerosol valves placed side by side, the valve for the liquid to be atomized being double and controlling an air inlet orifice for the dispensed liquid receptacle. These valves are actuated by a single pushbutton which is coupled to both valves. However, such a device is complicated to produce. Furthermore the use of an aerosol type valve for discharging a liquid where the liquid has been placed under pressure does not produce the most favorable dispensing conditions, as this comparatively complicated system requires a useless throttling of the liquid being dispensed.

Atomizer-dispensers have likewise been proposed which comprise a triple obturator consisting of a sliding core in the form of a slide valve. In one embodiment of this type of atomizer-dispenser, the propellant fluid is held in an annular reservoir situated around the receptacle containing the active agent to be atomized and dispensed, the active agent being fed to the atomization nozzle through an axial duct. This arrangement however results in an atomizer-dispenser which is difiicult to produce, unpleasing in appearance and difli-cult to handle. Furthermore, since the propelling agent reservoir is outside the receptacle, if there is an explosion of the reservoir containing the propelling agent, the user is not protected against flying fragments.

In another embodiment the receptacle containing the liquid to be atomized and dispensed and the reservoir of the liquefied propelling agent are arranged side by side. The slide valve is mounted so that it can slide along an axis at right angles to the axes of these receptacles and has an axial duct through which the propelling agent can escape for atomization. This system, however, has the same defect as the preceding one as regards protection in the case of an explosion of the propelling agent reservoir.

In devices of this kind it has furthermore been considered necessary, to facilitate the atomization, either to admit the vaporized propelling agent into the space above the liquid active agent to be atomized and dispensed, which again can create a problem because of incompatibility of the two materials and the necessity to provide for increased resistance to pressure -by the outer receptacle, or of producing opening and closing of various obtur-ators in a sequential order, which substantially complicates production of the device, makes it necessary to provide for an appreciable length of travel of the slide valve, and reduces the manufacturing tolerances.

The improved atomizer-dispenser of the present invention is intended in the first place to overcome the defects in the prior art devices described above.

It should also be noted that most of the known atomizer-dispensers of the kind described above are rechargeable and are expensive to produce. This is why these appliances are used mostly for the atomization and dispensing of expensive liquids, such as perfumes, the price of which justifies at one and the same time a complicated mechanical atomizer, careful handling, and the possibility of refilling.

An object of the present invention is to provide an atomizer-dispenser containing a considerable quantity of an inexpensive product, such as a household product (cleaning, deoderiz-ation or disinfecting agent) or a pest destroyer (anti-parasite, weed-killer, insecticide, etc), or a hygienic or cosmetic product (hair lacquer, sunburn lotion, etc.), but which does not require large quantities of the propelling agent and which is not refillable.

It is also an object of the invention to provide an atomizer-dispenser capable of large scale mass production while using inexpensive materials such as plastic materials.

The invention is further directed to the provision of an atomizer-dispenser having a structure such that the fineness of atomization obtained with a nozzle of the convergent-divergent type through which passes a current of vaporized propelling agent is comparable to that produced by aerosol bombs now in use in which the active liquid agent and the propelling agent are in the presence of one another and under pressure in the same receptacle.

According to the invention the apparatus for dispensing, particularly in atomized form, of an active agent of a liquid or powdery nature, comprises an outer receptacle adapted to hold the active agent, an inner reservoir adapted to contain a propellant gas under pressure, a stopper closing the outer receptacle and keeping the inner reservoir in position, the said stopper having a pushbutton therein for control of the escape of the propelling agent and also supporting a tube which is adapted to extend into. the active agent in the outer receptacle and which has one end at a discharge nozzle, which apparatus further has a high pressure obturator for the propelling agent reservoir and forming a part of the control pushbutton and low pressure obturator means also forming part of the pushbutton and respectively controlling the communication of the tube with the discharge nozzle and the communication of the receptacle containing the active agent with the atmosphere outside the apparatus.

Preferably the high pressure obturator is incorporated wvith the propellant agent reservoir in such a way as to form an independent assembly, and has a conduit member provided with a gas expansion nozzle opening into it. The

conduit member has the control pushbutton mounted thereon, and the stopper has a deformable collar permitting a spigot and socket mounting of the propellant agent reservoir on the stopper.

It is thus possible to assemble the independent assembly with the stopper, pushbutton, and outer receptacle at atmospheric pressure and by means of a very simple series of operations. Furthermore the conduit member with its .gas expansion inlet nozzle, by throttling the propellant gas across the gas expansion inlet nozzle, produces a first expansion of the propellant agent, which is favorable for the suction of the liquid into the discharge nozzle. In one advantageous arrangement, the control pushbutton is slidably mounted in 'a cup in the stopper, which cup com municates with the outer receptacle containing the active agent and which is traversed by the conduit member feeding the propellant agent to the discharge nozzle. This pushbutton is provided with a duct which in the depressed condition connects the above-mentioned cup to the said discharge nozzle. This duct is obturated by a flexible member surrounding the pushbutton and closing the cup when the pushbutton is not depressed. This flexible member can also serve to obturate an air inlet duct opening .into the outer receptacle when the pushbutton is not depressed, so that the same flexible member forms the low pressure obturator means of the invention.

Various embodiments of the obturators can be provided. According to one embodiment, the above-mentioned flexiblemember is embedded in the stopper, while in another embodiment it has a certain freedom of movement along the pushbutton between two pairs of stops, one pair on the pushbutton and the other pair on the stopper.

In another embodiment of the invention, the flexible member can be omitted and the pushbutton comprises successive annular projections in fluid-tight contact with the wall of' the cup, the communicating ducts being provided in the stopper and extending to the tube on the one hand and into the outer receptacle on the other hand and opening into the said cup at different levels in relation to the projections on the pushbutton.

Other objects of the invention will become apparent from the following specification and claims, taken together with the attached drawings, showing by way of non-restrictive examples, various embodiments of the invention, and in which:

FIGURE 1 is a sectional elevation view of an atomizerdispenser according to the present invention;

FIGURE 2 is a diametral sectional view on a larger scale of the upper part of the device of FIGURE 1 showing the parts in the non-dispensing positions;

FIGURE 3 is an axial section taken along line III-III of FIGURE 2.

FIGURE 4- is a view similar to FIGURE 2 showing the parts in the atomizing-dispensing positions;

FIGURES 5, 6 and 7 are views similar to FIGURE 2 of devices having different high pressure obturators for the propellant agent reservoir;

FIGURE 8 is a view similar to FIGURE 2, showing a modified embodiment of the apparatus according to the invention in the non-dispensing position;

FIGURE 9 is a view similar to FIGURE 8 showing the parts thereof in the dispensing positions;

FIGURE 10 is a view similar to FIGURE 2 showing another modified embodiment of the apparatus according to the invention with the parts in the non-dispensing position;

FIGURE 11 is a view similar to FIGURE 10 showing the parts thereof in the dispensing positions;

FIGURES l2 and 13 are views similar to FIGURE 8 of devices having different high pressure obturators for the propellant agent reservoir;

FIGURE 14 is a view similar to FIGURE 2 showing another modified embodiment of the apparatus according to the invention with the parts in the non-dispensing position;

FIGURE 15 is a view similar to FIGURE 14 showing the parts thereofin the dispensing positions;

FIGURE 16 is a view similar to FIGURE 2 showing another modified embodiment of the apparatus according to the invention with the parts in the non-dispensing position; and

FIGURE 17 is a view similar to FIGURE 16 showing the parts thereof in the dispensing positions.

In the description which follows it will be assumed that the active agent to be distributed is a liquid. In this case the dispensing of this liquid includes its atomization in the form of very fine droplets in order to produce a mist which is comparable in fineness to the droplets of mist produced by ordinary aerosol bombs.

Referring to FIGS. 1-4, the apparatus comprises an outer receptacle 1, for instance of plastic material, adapted to contain the liquid active agent 2 to be atomized and dispensed.

An outer receptacle 1 terminates in a neck 3 which is obturated by a solid stopper 4. The stopper 4 carries a reservoir 5 containing the propellant agent 6, for instance liquefied gas, the kinetic energy of which is utilized during escape of the gas from the reservoir for the atomization and dispensing of the liquid 2. For instance the propellant agent can consist of a gas with a high vapor tension such as carbonic acid gas, fluorochlorinated hydrocarbons, such as dichlorodifluoromethane, propane, etc.

The reservoir 5 can be made, for example, of thick glass or of a light alloy. In the embodiment shown in the figures, a. reservoir with a large diameter and a low height is preferably used in order to limit the flexional stresses at the point of fixation to the stopper. It is equally possible to use a reservoir 5 which has a small diameter and which extends over the whole available depth of the outer receptacle 1.

According to an important special feature of the present invention the reservoir 5- has a high pressure obturator 7,

V of any type, which is mounted in the neck of reservoir 5 inside the dome 8 of a cover 9 capping the reservoir 5. The obturator 7 can be a conventional aerosol valve. In the embodiment described this comprises a valve body 11 slidably mounted in a housing 20 which has an orifice 3t in the bottom thereof communicating with the interior of the reservoir 5. The valve body 11 is urged into the closed position by the pressure of the liquefied gas and by a return spring 12 mounted beneath it in housing 30. The valve body 11 in the closed position compresses a flexible annular member 13 against the base 10 of the dome 8 in'such a way as to obturate one or more radial inlet nozzles 14 which open into the axial bore 15 of a conduit member 16.

The reservoir 5 fitted with its high pressure obturator 7 forms a first autonomous sub-assembly which can be filled with the propellant gas by conventional aerosol filling techniques and which can then be handled at atmospheric pressure.

To permit simple and rapid mounting of the reservoir 5, the stopper 4 is provided with an annular extension 17 with a restricted diameter portion 18 capable of adapting itself to the cover 9 of the reservoir 5 by elastic deformation. There is a downwardly opening cavity 19 in the stopper 4 opening into the space surrounded by the annular extension 17 and the volume of which corresponds to that of the dome 8.

Above the cavity 19 is an upwardly open cup 21, with a gradually downwardly and inwardly tapering bottom surface which forms one face of a flexible collar 22 between the cup 21 and cavity 19, which collar has a central orifice 23 for the passage of the conduit member 16 of the high pressure obturator 7.

With this construction, when the cover 9' for the reservoir 5 is forced upwardly into the extension 17, the conduit member 16 lies on the axis of the cup 21 and extends through opening 23. The dimensions of the system are so calculated that the base of the dome 8 presses lightly against the collar 22, deforming it elastically, which ensures a fluid-tight joint between these surfaces.

The stopper 4 further has a downwardly opening recess 40 therein into which one end of a tube 24 is forcibly fitted, the other end of the tube extending nearly to the bottom of outer receptacle 1 so that it will always extend into the liquid 2. The joint between tube 40 and stopper 4 is fluid-tight. A duct 25 extends from the tube 24 through the stopper and opens into the cup 21 through an aperture 26.

The apparatus further comprises a pushbutton 27 the head 28 of which has mounted therein a discharge nozzle 29 of the convergent-divergent type. This nozzle may simply comprise, for instance, a convergent part 36, a neck 37 and a divergent part 38.

The pushbutton 27 can be made of a semi-rigid moulded synthetic material and the associated nozzle 29 can be of a light alloy or of stainless steel, or can also be made of rigid synthetic material.

The head 28 has a downward axially extending portion 31 having a sleeve 32 on the end thereof adapted to be positioned in the cup 21 and to cap the conduit member 16 in a fluid-tight manner.

When the apparatus is assembled the pushbutton 27 is thus axially movable with the high pressure obturator 7 which carries it, these parts constituting a single continuous assembly.

The portion 31 of the pushbutton 27 has two parallel ducts 33 extending parallel to the axis AA of the apparatus (FIGURE 3), which start in a chamber 34 at the inner end of sleeve 32 forming an extension of the bore 15 of the conduit member 16 and which open into a chamber 35 in the head 28 which has an axis BB at right angles to the axis AA and which corresponds to the axis of the nozzle 29.

Radial ducts 41 open into the neck 37 of nozzle '29 and they extend into an annular chamber 42 around nozzle 29 for distributing the liquid to be atomized. The chamber 42 is fed by an oblique duct 43 extending through the part 44 of the downwardly extending portion 31 separating the two ducts 33 (FIGURE 3). The duct 43 opens through an aperture 45 into an annular groove 46 in the body 31, and aperture 45 is controlled by a low pressure obturator essentially comprising an annular flexible member 47. The flexible member 47 can be made of synthetic rubber, for instance, and is circular in form and has a central aperture through which the extending portion 31 extends, this aperture, however, having a smaller diameter than the diameter of the extending portion 31 at the annular groove 46 in which it locks to provide a fluid-tight joint.

The flexible member 47 in this embodiment also serves as a second obturator, a low pressure obturator con- 6 trolled by the pushbutton 27 and controlling the admission of air into the outer receptacle 1 only during dispensing.

This function is performed by the cooperation of the flexible member 47 with a duct 48 extending through stopper 4 and having an upper end opening above the member 47 into an annular groove 49 separated from the cup 21 by an annular ridge 51 against which the flexible member 47 is fixed in position by the action of a semirigid cap 52, forcibly secured around the edge of a projection 53 on the stopper 4. The cap 52 has a central aperture 54 therein larger in diameter than downwardly depending portion 31 and through which depending portion 31 passes and has a collar 55 therearound directed towards the flexible member 47 and which presses on it in the non-dispensing position. Radial ducts 56 extend partly through collar 55 from a point intermediate the inner and outer peripheral edges to the outer peripheral edge and place the duct 48 and the space between the flexible member 47, the cap 52 and the collar 55, in communication. Because the collar 55 is on the flexible member in the non-dispensing position, it separates the said space from the atmosphere outside the apparatus.

As can be seen from the foregoing description, the stopper 4, the first sub-assembly made up of the reservoir 5 filled with its propellant gas and the obturator 7, and the pushbutton 27 and its various parts can be assembled and form a second sub-assembly. To complete the assembly of the apparatus all that is necessary to press the stopper 4 of this second sub-assembly into the receptacle 1 until an annular rim 58 on the stopper 4 bears on the neck 3 of the receptacle 1. This neck has an outer projection 61 which enables an annular cover 62 to be attached to it, the cover having an inwardly projection rib 63 engaging under projection 61 and a central aperture 64 through which the stopper 4 passes. Since the interior of the receptacle 1 is not under pressure, this assembly can be effected very easily and with a perfectly satisfactory fluid-tightness, simply by engagement of the various components and without threading any of the parts to each other.

If it is desired to seal this apparatus, the rim 58 can be made integral with the neck 3 by bonding it thereto or Welding it thereby by any suitable means, such as thermowelding, by ultrasonic or high frequency methods, depending on the nature of the plastic materials used, since the dispenser is not, basically, designed to be refilled.

When the dispenser is in the non-dispensing condition (FIGURE 2) the pushbutton 27 is kept in the upper position by the spring 12 and by the pressure of the propelling agent 6. The flexible member 47 thus presses against the annular collar 55 of the cap 52, and the cup 21 is fluidtightl-y obturated by the flexible member 47, the aperture 45 being situated above the flexible member. In this way the liquid 2 cannot escape, even if it flows into this cup after passing through the tube 24 and the duct 25.

Furthermore the part of the chamber 49 between the flexible member 47 and the cap 52 and into which the duct 48 opens is fluid-tightly obturated in respect of the atmosphere outside the apparatus. Any escape of liquid 2 by this route is therefore equally impossible.

If the pushbutton 27 is depressed (FIGURE 4) into the stopper 4, the body 11 of the obturator 7 slides in the direction G into the housing 20, compressing the spring 12. The flexible members 13 "and 47 are bent due to this displacement as shown in FIGURE 4 and uncover the inlet nozzles 14 of the conduit member 16 and also the aperture 45 at the end of the duct 43, which has been moved into the cup 21 beneath the flexible member 47.

The first result of this displacement is to place the reservoir 5 into communication with the outer atmosphere, which causes the flow of the propellant fluid in the direction 1. This flow includes a first expansion at the outlet from the inlet nozzle 14 which produces a vaporized propellant agent flowing at a high speed in the conduit member 16. This speed is further increased as the vaporized propellant flows through the convergent and neck parts of the discharge nozzle 29. Under the action of this flow of propellant, a low pressure zone is created in the neck 37 of the discharge nozzle, the result of which is to suck the liquid 2 in the direction through tube 24, duct 25, cup 21, duct 43, chamber 42 and radial ducts 41. The liquid reaching the neck 37 of the discharge nozzle 29 is projected out of the nozzle and is atomized by the gaseous flow f moving along the BB of the head 28.

At the same time as the liquid 2 flows in the direction 1', thus progressively emptying the receptacle 1, the outside air is admitted to the interior of this receptacle, because of the depression of the flexible member 47 away from collar 55, making possible the flow of air through the ducts 56 and the duct 48 (path k). Because the curved part of the flexible member 47 rests against the conical part of the groove 46, no air which would cut off the suction of the liquid stream can enter cup 21.

Experience has shown that the rise of the liquid 2 in the direction j is practically instantaneous, even if the receptacle 1 is only partially filled, so that as soon as the button 27 is depressed, atomization takes place without there being any loss of propellant agent. It is because of this instantaneous atomization that the present invention provides for the simultaneous flexing of the flexible members 13 and 47.

It will be noted that the cup 21 provided in the stopper 4 plays a special role: after atomization a certain amount of liquid is left in the cup 21. When the dispenser is used again, this liquid is acted on by the extending portion 31 of the button 27 as it descends in such a way that the liquid is mechanically impelled into the duct 43. This helps to bring the liquid 2 practically instantaneously to the level of the neck 37 of the discharge nozzle 29.

During operation of the apparatus the propellant 6 becomes cool, but it receives additional heat from the thick wall of the reservoir 5, or from the liquid 2 if the reservoir 5 has thin walls and is immersed in the liquid 2. Because aluminium spinning processes makes it possible to produce receptacles of great length economically, a thin-walled reservoir which extends for the full depth of the outer container can be provided. When this is done the reserve of liquefied propellant gas can be heated, during the use of the dispenser, by heat which can be supplied by the liquid to be atomized.

Experience has shown that the arrangement described makes it possible, by choosing a suitable venturi discharge nozzle, to obtain a fine atomization with droplets of about a few tenths microns in diameter with a reduced consumption of propellant, it being necessary to use propellant only in an amount of about 30% of the weight of the liquid 2 to be atomized.

The entry of outside air through the duct 48 likewise facilitates the emptying of the receptacle 1, avoiding the condition in which the interior of the outer receptacle has a reduced pressure in relation to the pressure of the atmosphere.

The embodiment described above, and also the other embodiments which will be described hereinafter, have the following advantages:

By the systematic use of plastic receptacles, problems of corrosion are eliminated. Consequently it is possible to use water as a solvent, with a wide variety of tensionactive products making it possible to impart to the liquid agent 2 valuable atomization properties. The cost of formulating the liquid agent 2 is likewise reduced.

Because of the absence of contact between the propellant agent 6 and the liquid 2 it is possible to make general use of formulae which are aqueous particularly those containing organic products which are emulsified or in solution, without these products being first extracted by the liquefied propellant. The mixture will also be substantially non-inflammable, even when the propellant gas is a light hydrocarbon, because of the low percentage of the hydrocarbon propellant in relation to the aqueous component.

Because the receptacle 1 is of appreciable size, it ensures satisfactory protection against flying fragments if the reservoir 5 should explode.

Atomization is ensured by simple pressure of the finger, the apparatus being held in the same hand with which the finger pressure is applied. The pushbutton 27 can furthermore be easily turned around the axis A-A to direct the nozzle 29 in the desired direction.

If, furthermore, a practically non-inflammable gas such as fiuorochlorinated hydrocarbon such as dichlorofluoromethane is used as a propellant, the invention makes it possible to provide atomizer-dispensers which are noninflammable whether in storage or in use, which will not cause the slightest danger of fire in case they explode, and at a cost very much lower than that of conventional aerosol bombs because of the much smaller quantity of propellant agent and the ability to carry out the assembly at atmospheric pressure. Finally these atomizer-dispensers make it possible to employ a whole series of formulae which cannot be used in conventional aerosol bomb devices.

Another fundamental advantage of the apparatus of the present invention is that it can be used with the reservoirs 5 having various types of high pressure obturators 7. As pointed out above, thehigh pressure obturator 0f the embodiment of FIGS. 1-4 is a conventional type of obturator. The manner in which the apparatus can be used with other types of obturators will be described hereinafter.

In FIGURE 5, the sliding valve body 11 of the high pressure obturator has frusto-conical bearing surface around the base of the conduit member 16 the bearing surface 65 bearing against a corresponding bearing surface of a thick substantially inflexible annular member 66 of resilient material which is fixedly mounted in the body 20 The conduit member 16 merely slides through the annular member 66 to expose the radial inlet nozzles 14 The remaining parts of the apparatus of this embodiment are the same as those of the embodiment of FIG- URES 1-4 and are designated by like reference numerals with a subscript 5.

In the embodiment in FIGURE 6, the sliding valve body 11 has a bead 67 therearound which seats against a fixed resilient but substantially inflexible annular member 68, held between the body 20 here provided with a centering collar 62 and dome 3 of the cover 9 The conduit member 16 merely slides through the annular member 63 to expose the radial inlet nozzles 14 The remaining parts of the apparatus of this embodiment are the same as those of the embodiment of FIGURES 1-4 and are designated by like reference numbers with a subscript 6.

Another type of high pressure obturator with which the apparatus according to the present invention can be used is the type in which a conduit member from the apparatus extends through an annular member at the mouth of the propellant reservoir. One form of such an obturator in the apparatus of the present invention is shown in FIG. 7, in which a centering collar 73 having a downwardly depending annular ring 72 is fitted onto the neck 70 of the propellant reservoir 5 the annular ring having a bead on the end engaging under the enlarged upper end of a valve housing 71 to hold the valve housing 71 in place in the neck of the reservoir 5 A flexible resilient annular member 77 is positioned over the mouth of the valve housing 71 and has a central opening aligned with the opening in the centering collar 73. A cover 9 with a dome 8 holds the centering collar 73, the flexible annular member 77 and the valve housing 71 in the neck of the reservoir. Slidably mounted within the valve housing '71 is a valve body 75 having a spring 12 beneath it and bearing against the bottom of the valve hous- 9 ing to urge the valve body upwardly so that the top edge thereof normally seats against the flexible annular member 77 and presses it against the centering collar 73 to normally seal the reservoir Extending through a central aperture in the annular member 77 is a conduit member 16 which in this embodiment is integral with the downwardly extending pushbutton portion 31 and the conduit member 16 extends into the valve body 75 and is secured in an annular recess therein. At least one lateral opening 78 is provided in the conduit member, the upper end of which is just slightly above the upper edge of the valve body 75, so that there is formed at least one inlet nozzle opening into the bore 15 of the conduit member 16 The remaining parts of the apparatus of this embodiment are the same as those of the embodiment of FIG- URES 1-4 and are designated by like reference numbers with a subscript 7.

In the embodiment of FIGURES 8 and 9 the low pressure obturator means for the liquid active agent to be dispensed and for the air admitted to receptacle 1 is a single annular member 79 which is resilient and which is mounted in the cup 21 in the stopper 4 for the receptacle 1 and through which the downwardly extending portion 31 of the pushbutton 27 extends.

In this arrangement the annular member 79 has an appreciable thickness, and is mounted in an annular groove 80 in the downwardly extending portion 31 and has a dimension in the direction in which portion 31 extends which is less than the dimension of groove 80, so that the free displacement of the member 79 along portion 31 is only restricted by the shoulders at the sides of the groove which form a pair of annular stops 81 and 82. A slot 83 is provided along the portion 31 in the bottom of groove 80. Extending through the pushbutton 27 from the end of slot 83 is a duct 84 opening into the neck 37 of the discharge nozzle 29 the convergent part of which can be seen at 36 and the divergent part at 38 The convergent part 36 is fed through an axial duct 85 in the downwardly extending portion 31 which duct is in line with the bore in conduit member 16 of the high pressure obturator. A second pair of annular stops 86 and 87 respectively formed by a shoulder in the cup 21 and by an inwardly extending portion of cap 52 which extends inwardly past the projection 53 of the stopper 4 The clearance provided between the stops 81 and 82 and 86 and 87 is greater than the thickness of the annular member 79. In this embodiment the end 89 of the duct 48 opens directly into the cup 21 into an annular space 88 around the annular member 79.

With the parts in the positions shown in FIG. 8 the button 27 is pushed upwardly by the conduit member 16 of the high pressure obturator, which causes the stop 82 to push the annular member 79 against the stop 86, ensuring the fluid-tight sealing of the cup 21 in relation to the atmosphere outside the apparatus.

When the button 27 is pressed downwardly to the position shown in FIG. 9, the stop 81 comes into contact with the annular member 79 and pushes it down along downwardly extending portion 31 until it is stopped by the stop 87. The liquid 2,; fed through the tube 24 fills the lower part of the cup 21 and passes through the slot 83 and duct 84 into the neck 37 of the discharge nozzle. At the same time the end 89 of the duct 48;, is closed off from cup 21 by the seating of annular member 79 on the stop 87, and cut 48 is placed in communication with the atmosphere through the space which opens up between the annular member 79 and stop 86 and through the aperture 90 in cap 52 Of course in the embodiment of FIGS. 2-4 and the embodiments of FIGS. 5 and 6 it would also be possible to use a pushbutton 27 with a discharge nozzle and duct arrangement of the kind shown in FIGS. 8 and 9 and vice versa.

The embodiment shown in FIGS. 10 and 11 differs fro that of FIGS. 8 and 9 in that the high pressure obturator is the type in which a conduit member extends from the apparatus through an annular member at the mouth of the propellant reservoir. In this embodiment the stopper 4 has a downwardly depending annular ring 91 with an enlarged end portion 92 which engages under an enlargement 93 on the neck of the propellant reservoir 5 to hold the stopper and the propellant reservoir together. A resilient and substantially inflexible annular member 94 is mounted in the mouth of the propellant reservoir, through which the closed end of the conduit member 16 extends in a slidable sealing engagement. The conduit member is integral with the downwardly extending portion of pushbutton 27 and has the inlet nozzles 14 therein opening into the bore 15 of the conduit member. Resting on the inwardly extending collar 22 defining the bottom of the pocket 21 is a spring 95 which at the other end engages against the bottom of the end of downwardly extending portion 31 on the bottom surface of stop 82 In the position of the parts as shown in FIG. 10, the spring 95 urges the pushbutton 27 upwardly and holds the conduit member 16 in the up position with the inlet nozzles 14 within the annular member 94.

The remaining parts of the apparatus of this embodiment are the same as those of the embodiment of FIG- URES 8 and 9 and are designated by like reference numbers with a subscript 10.

When the pushbutton 27 is depressed, the parts assume the positions shown in FIG. 11, the inlet nozzles 14 are pushed below the bottom of the annular member 94 in the mouth of the propellant reservoir, and propellant is expanded into the bore 15 of the conduit member 16 and passes through the discharge nozzle 29 The passage of the liquid to be dispensed through the apparatus is the same as through the embodiment of FIGS. 8 and 9, and as shown by the arrows in FIG. 11.

The embodiment of FIG. 12 is the same as .that of FIGS. 10 and 11 with the exception of the shape of the lower end of the conduit member 16 where it engages in the annular member 94 in the mouth of the propellant reservoir 5 In the embodiment of FIG. 12, the closed end of the conduit member 16 has a pointed enlargement 96 thereon which has an outside diameter greater than the outside diameter of the conduit member 16 and the joint between the enlargement 96 and the conduit member 16 is in the form of an upwardly and inwardly tapered seat 97 which engages tightly in wedging relationship with a complementary seat 98 on the annular member 94 to form a tight seal for the propellant reservoir 5 The remaining parts of the embodiment are the same as those of the embodiment of FIGURES 10 and 11 and, where appropriate, are designated by like reference numbers with a subscript 12. The operation of the embodiment is also the same as that of the embodiment of FIGS. 10 and 11.

The embodiment of FIG. 13 is likewise very similar to that of FIGS. 10 and 11 and is also similar to that of FIG. 12. It has the integral conduit member 16 extending downwardly through the annular member 94 which seals the mouth of the propellant reservoir 5 and as in FIG. 12, there is a pointed enlargement 96 on the end thereof and a seat 97 between the enlargement and the conduit member which seats against the annular member 94 to seal olf the propellant reservoir. In the embodiment of FIG. 13, the lower end of the conduit member 16 has a groove 99 around the outside surface thereof into which the inlet nozzles 14 open from within the bore 15 The annular member 94 is relatively thin and flexible rather than merely resilient and substantially non-flexible as in the embodiments of FIGS. 9 and 10, and FIGS. 11 and 12. In addition, there is an annular chamber 42 around the discharge nozzle 29 into which the conduit 84 through the pushbutton opens, as in the nozzle constriction of the embodiment of FIGS. 2-4.

The remaining parts of the apparatus of this embodiment are the same as those of the embodiments of FIGS. 9 and 10, and FIGS. 11 and 12, and are designated by like reference numbers with a subscript 13. The operation of the embodiment of FIG. 13 is also the same as the operation of these embodiments.

The embodiment of FIGS. 14 and 15 has a slightly different type of obturator for the liquid to be dispensed and for sealing off the liquid container from the outside atmosphere. As shown in the figures, the propellant reservoir which is capped by a cover 9 having a dome 8 thereon with a high pressure obturator therein such as that shown in the embodiment of FIGS. 2-4 with a conduit member 16 projecting upwardly out of the obturator. A stopper 4 has an annular extension 17 extending downwardly therefrom engaging around the cover 9 to hold the propellant reservoir 5 and the stopper 4 in engagement. As with the other embodiments, the stopper 4 has the liquid conduit 25 therein extending from a recess in which the tube 24 is positioned to the cup 21 and has the air inlet conduit 48 extending from the upper part of the cup 21 into the space within the. liquid outer receptacle 1 The stopper 4,, is held on the outer receptacle by means of the annular cover 62 holding the annular rim 58 against the neck of the receptacle 1 The pushbutton 27 has a downwardly extending portion 31 which is slidable in the cup 21 and is in sealing engagement therewith and has a central bore 44 which is a continuation of the central bore in the conduit member 16 of the high pressure obturator. A peripheral groove 100 is provided around the periphery of the downwardly extending portion 31 and is located along the length of said portion so that when it is opposite the point where the liquid conduit 25 opens into the cup 21 the upper end of the downwardly extending portion which is in sliding engagement with the cup 21 is below the point at which the air conduit 48 opens into the cup 21 In the particular embodiment shown, there is a further groove 101 between the groove 100 and the top of the slidable engaging portion, so that there is an annular shoulder defined between the two grooves which engages the Wall of the cup 21 and an annular shoulder 103 between the groove 101 and the top of the portion 31 and a still further annular shoulder 104 between the groove 100 and the bottom of the portion 31 In the embodiment shown, the pushbutton differs further from the embodiments described previously in that it is designed to project a stream of atomized fluid axially of the apparatus rather than laterally. To this end, the discharge nozzle 29 is positioned in the upper end of the central bore 44 and has the converging part 36 the neck 37 and the divergent part 38 opening out of the top of the pushbutton. Annular chamber 42 surrounds the discharge nozzle and the liquid conduit 43 opens into this chamber. Radial ducts 41 open into the neck of the discharge nozzle from the chamber 42 The pushbutton has two oppositely extending finger engageable extensions 105 having finger depressions 106 therein.

With the parts in the positions shown in FIG. 14, the high pressure obturator seals the propellant reservoir 5 and the downwardly extending portion 31 seals off the cup 21 and consequently seals off conduit 25 to the liquid container 1 At the same time, the downwardly depending portion 31 seals off the air inlet conduit 48 so that the liquid container is completely sealed off from the outside atmosphere.

When the pushbutton 27 is depressed by pressure of the fingers of one hand on extensions 105, the parts assume the positions shown in FIG. 15, and it will be seen that the high pressure obturator is opened to release propellant from the propellant reservoir in the same manner as described in connection with FIGS. 2-4, so that propellant flows through the bore 4-4 and through the discharge nozzle 29 At the same time, the groove in the downwardly extending portion 31 is moved to a position opposite the point at which the liquid conduit 25 opens into the cup 21 so that liquid can be drawn up the tube 24 through conduit 25 through the groove 100, through the conduit 43 in the stopper into the annular chamber 42 around the discharge nozzle, and then through the radial ducts 41 into the neck 37 of the discharge nozzle Where it is entrained in the propellant. Further, since the top of the downwardly extending portion 31 has moved below the level of the point at which the air inlet conduit 48 opens into the cup 21 air is free to flow into the receptacle 1 through the air inlet conduit. The liquid in the receptacle is thereby dispensed in the flowing stream of propellant as an upwardly diverging spray.

Release of finger pressure on the pushbutton enables the spring means and the pressure of the propellant in the reservoir 5 to move the pushbutton and the downwardly extending portion 31 thereof upwardly into the position of FIG. 14, thereby again sealing the propellant reservoir as well as the liquid receptacle.

It will be seen that the number of parts of the apparatus according to this embodiment is quite small and they will be relatively easy to manufacture and assemble because no sealing joint is necessary for the pushbutton. The pushbutton and its downwardly extending portion can be of a plastic which has a low coefficient of friction, for example polytetrafluoroethylene.

The embodiment of FIGS. 16 and 17 is similar to that of FIGS. 14 and 15 in that the discharge nozzle opens axially out of the top of the pushbutton. As seen in these figures, the stopper 4 has an annular extension 17 depending therefrom which engages around the neck of propellant reservoir 5 to hold the stopper and the reservoir in engagement. An annular gasket 125 is positioned between the stopper 4 and the top of the neck of the reservoir 5 and projects inwardly into a central bore 106 and forms the bottom of a pocket 21 in the.

stopper 4 The top of the pocket is partially closed by an inwardly projecting flexible collar 107. The stopper is secured to an outer receptacle 1 by an annular cap 62 in the same manner as the stopper of the embodiment of FIGS. 24. The stopper also has a liquid conduit 25 therein leading from a recess in which the upper end of liquid tube 24 is held, and has an air inlet conduit 48 opening into the top of the receptacle 1 Both conduits open into the cup 21 the liquid conduit 25 opening near the bottom of the cup and the air conduit 48 opening near the top of the cup. Positioned in the neck of the reservoir 5 and in sealing engagement with the gasket is a valve housing 20 having an opening 30 in the bottom thereof opening into the reservoir. Mounted adjacent the opening 30 is a ball valve member 108 for metering the quantity of propellant discharged from the reservoir when the apparatus is used with the pushbutton pointing down.

Positioned within the cup 21 is a downwardly extending portion 31 which has a valve body 11 on the end thereof which extends into the-valve housing 20 A spring 12 positioned between the bottom of the valve housing 20 and the bottom of the valve body 11 assists in urging the valve body upwardly. A flexible annular member 13 is positioned against the top of the valve housing 20 within the cup 21 and projects inwardly so that under the action of the spring 12 and the pressure of the propellant in the reservoir 5 the valve body 11 will seal against the flexible annular member 13 Positioned on top of annular member 13 is an annular spacer ring 109 which has a diameter slightly less than that of the cup 21 and which has radial inlet openings 110 therein. The liquid conduit 25 opens into the cup 21 in the space around the spacer ring 109. On top of the spacer ring 109 is a further flexible annular member 111 the outer periphery of which is tightly engaged with the surface of the stopper 4 defining the cup. On top of the annular member 111 is a further annular spacer ring 112 which also has a diameter slightly less than that of cup 21 and which has radial inlet openings 113 therein. The air inlet conduit 48 opens into the cup 21 in the space around the spacer ring 112. On top of the spacer 112 is a still further flexible annular member 114 which is in tight engagement with the flexible collar 107, so that the stack of alternate flexible annular members and spacer rings are held in sealing engagement with each other.

Within downwardly extending portion 31 is an axial discharge nozzle having a convergent part 36 a neck part 37 with inlets 41 therein, and a divergent part 38 Around the periphery of the downwardly extending portion 31 are three grooves 115, 116 and 117 which are spaced along the length of the downwardly extending portion. Groove 115 is positioned right above the valve body 11 and annular member 13 engages in it to seal off inlet nozzle 14 which extends from the groove 115 into the convergent part 36 of the discharge nozzle. Groove 116 is positioned about midway of the length of the downwardly extending portion 31 and annular member 111 engages in it and normally seals ofr" inlet 41 to the neck of the discharge nozzle. Groove 117 is near the top of the downwardly extending portion and has annular member 114 engaged therein normally sealing it off. In addition, longitudinally extending bleeder grooves 118 are provided in downwardly extending portion 31 opening upwardly out of the groove 117.

Firmly secured to the top of downwardly extending portion 31 is the finger engageable portion 119 of the pushbutton 27 said portion 119 having a serrated finger engaging extension 120 projecting later-ally of the pushbutton and having an aperture 121 aligned with the divergent part 38 of the discharge nozzle through which material mixed with propellant is discharged. A shield 122 is provided between the aperture 121 and the finger engaging extension 120. The pushbutton is mounted on a bead 123 around the top edge of stopper 4 With the parts in the positions shown in FIG. 16, the propellant reservoir is sealed by the flexible annular member 13 covering the inlet nozzle 14 and the valve body 11 being seated against the flexible annular member 13 these parts together forming a high pressure obturator for the propellant reservoir. The liquid conduit 25 is sealed by the flexible annular member 111 which is tightly sealed in the pocket 21 and which normally engages in groove 116 to seal off inlets 41 to the neck of the discharge nozzle. Air inlet conduit 48 is sealed by the flexible annular member 114 which seals the groove 117 and is tightly engaged against the collar 107. The flexible annular members 111 and 114 are thus each a low pressure obturator, one for the liquid conduit and one for the air inlet conduit.

When the pushbutton 27 is depressed by pressure of a finger in the direction of the arrow K, the downwardly extending portion 31 is moved downwardly, and the parts take the positions as shown in FIG. 17. The inlet nozzle moves below the flexible annular member 13 and propellant expands through this nozzle into the convergent part 36 of the discharge nozzle, and then passes through the neck 37 The inlets 41 are moved below the flexible annular member 111, and because of the low pressure in the neck 37 liquid is drawn up through the tube 24 liquid conduit 25 and into the cup 21 and then passes through the radial inlet openings 110 in the spacer ring 109 and then into the inlets 41 At the same time, the groove 117 is moved downwardly away from the flexible annular member 114 so that the bleeder grooves are opened, allowing air to enter the cup 21 pass through the radial passages 113 in spacer 14 ring 112 and into the air inlet conduit 48 and the receptacle 1 When the pushbutton is released, the spring 12 and the pressure of the propellant in reservoir 5 return the downwardly extending portion 31 to the position of FIG. 16, thereby again sealing the receptacle 1 and the reservoir 5 Many types of materials can be used to make the various parts of the apparatus, for example, plastics, metal and glass. Moreover, it is within the scope of the present invention to provide a plurality of duct systems, i.e. a plurality of sets of ducts each having a liquid duct and an air inlet duct, and a plurality of compartments in the receptacle 1 so that materials which cannot be stored together can nevertheless be atomized and dispensed. Examples of such materials are an acid and a base, and a resin and its polymerization catalyst. In such cases, the liquid conduits from the separate parts of the receptacle 1 conduct the liquids to the neck of the discharge nozzle Where they are mixed for the first time. In order to accommodate the structure of the present invention to this embodiment, it will be necessary to provide separate receptacles or partition the one receptacle, and to provide a liquid duct and an air inlet duct for each compartment and to provide obturators, either separate or combined, for each of the ducts. One way of accomplishing this result would be, for example in FIGS. 24, to provide a longer downwardly depending portion with two grooves therein, the ducts from one groove extending to the neck of the discharge nozzle and the ducts from the other groove extending to the neck of the nozzle.

It is thought that the invention and its advantages will be understood from the foregoing description and it is apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing its material advantages, the forms hereinbefore described and illustrated in the drawings being merely preferred embodiments thereof.

What I claim is:

1. An atomizer-dispenser for fluids, comprising an outer receptacle having at least one space therein for at least one fluid to be dispensed, an inner reservoir for a propellant gas under pressure and positioned within said outer receptacle, a stopper closing said outer receptacle and having said inner reservoir secured thereto, a pushbutton movably mounted in said stopper, a discharge nozzle forming part of said atomizer-dispenser, a high pressure obturator means coupled to said pushbutton and located between said propellant reservoir and said discharge nozzle and movable by said pushbutton for passing propellant gas from said reservoir through said discharge nozzle, and at least one low pressure obturator means coupled to said pushbutton and located between said one space in said outer receptacle and said discharge nozzle and between said one space in said outer receptacle and the outside of said dispenser and movable by said pushbutton for placing the interior of said at least one space in said receptacle in communication with said discharge nozzle and placing the interior of said one space in said receptacle in communication with the space outside the dispenser.

2. An atomizer-dispenser for fluids, comprising an outer receptacle for the fluid to be dispensed, an inner reservoir for a propellant gas under pressure and positioned within said outer receptacle, a stopper closing said outer receptacle and having said inner reservoir secured thereto, a pushbutton movably mounted in said stopper, a discharge nozzle forming part of said atomizer-dispenser, high pressure obturator means coupled to said pushbutton and located between said propellant reservoir and said discharge nozzle and movable by said pushbutton for passing propellant gas from said reservoir through said discharge nozzle, and low pressure obturator means coupled to said pushbutton and located between said outer receptacle and said discharge nozzle and between said outer receptacle and the outside of said dispenser and movable by said pushbutton for placing the interior of said receptacle in communication with said discharge nozzle and placing the interior of said receptacle in communication with the space outside said dispenser.

3. An atomizer-dispenser for fluids, comprising an outer receptacle for the fluid to be dispensed, an inner resewoir for a propellant gas under pressure and positioned within said outer receptacle, a stopper closing said outer receptacle and having said inner reservoir secured thereto, a pushbutton movably mounted in said stopper, said pushbutton having a discharge nOZzle therein, said discharge nozzle having a low pressure creating portion, fluid conduit means extending from the interior of said receptacle through said stopper and said pushbutton to the low pressure creating portion of said discharge nozzle and having air inlet conduit means extending from the interior of said receptacle to the outside of said dispenser, high pressure obturator means coupled to said pushbutton and located between said propellant reservoir and said discharge nozzle and movable by said pushbutton for passing propellant gas from said reservoir through said discharge nozzle, and low pressure bturator means coupled to said pushbutton and positioned in said fluid conduit means and in said air inlet conduit means and movable by said pushbutton for opening both said conduit means to place the interior of said receptacle in communication with said low pressure creating portion of said discharge nozzle and placing the interior of said receptacle in communication with the space outside the dispenser.

4. A dispenser as claimed in claim 3 in which said high pressure obturator means comprises a valving means having a propellant discharging conduit member movable substantially axially of said reservoir, said low pressure obturator means being mounted between said pushbutton and said stopper, both obturator means" being movable to the open position by the same motion of the pushbutton.

5. A dispenser as claimed in claim 4 in which said pushbutton is slidable axially of said stopper and has a first passage therethrough communicating with said propellant discharging conduit member of said valving means and opening into said discharge nozzle and a second passage therethrough opening into said low pressure creating portion of said discharge nozzle and forming part of said fluid conduit means, said low pressure obturator means being associated with said second passage in said pushbutton member.

6. A dispenser as claimed in claim 5 in which said stopper has a cup therein and a cap with an opening through which said pushbutton extends downwardly and into which cup said propellant discharging conduit member from said valving means extends, said opening in said cap being larger than the part of said pushbutton which extends through it, said pushbutton engaging said propellant discharging conduit member, said low pressure obturator means being a single annular member movably mounted in said cup between said stopper and said pushbutton, said second passage in said pushbutton opening out of said pushbutton adjacent said annular member and said air inlet conduit means in said stopper being an air inlet conduit opening into said cup adjacent said annular member, and the portion of said fluid conduit means in said stopper opening into said cup between said annular member and the bottom of said cup toward said propellant reservoir.

7. A dispenser as claimed in claim 6 in which said pushbutton has a downwardly extending portion extending into said cup, and said annular member is a flexible annular member having the outer periphery fixed in said stopper adjacent to top of said cup, said downwardly extending portion having an annular groove therein in which the inner periphery of said annular member is engaged, said second passage in said pushbutton opening into said groove, said air inlet conduit opening into said cup between said annular member and the top of said cup, said cap having a downwardly depending member against which the said annular member seals when said pushbutton is in the undepressed condition for sealing said air inlet conduit from the outside of said dispenser, and said annular member sealing against the top of said groove and opening said second passage into said cup and being distorted away from said downwardly depending member to open said air inlet conduit to the atmosphere outside the dispenser through the cap opening when said pushbutton is in the depressed position.

8. A dispenser as claimed in claim 6 in which said pushbutton has a downwardly extending portion extending into said cup, and said annular member is a resilient and substantially non-flexible member, said downwardly extending portion having an annular groove therein having a dimension in the direction of the length of said downwardly extending portion greater than the corresponding dimension of said annular member, the upper and lower edges of said groove defining upper and lower stop members and said annular member being movable along said downwardly extending portion in said groove, said cap having an inwardly extending portion around the top of said cup having an aperture therein larger in diameter than that of the downwardly extending portion of said pushbutton and the under side of which defines an upper stop member, and said cup having a lower stop member therein spaced from the upper stop member at the top of said cup a distance substantially the same as the spacing of the upper and lower stop members on said downwardly extending portion, said annular member extending radially of said downwardly extending portion so as to lie between said upper and lower stop members in said cup, said air inlet conduit opening into said cup adjacent said upper stop in said cup and said second passage in said pushbutton opening into said groove in said downwardly extending portion, said groove having a recess in the bottom thereof extending in the direction of the downwardly extending portion and aligned with said second passage, said annular member engaging said upper stop in said cup and said lower stop on said downwardly extending portion in the non-dispensing position of the parts of said dispenser and engaging the upper stop on said downwardly extending portion and the lower stop in said cup in the depressed position of said pushbutton. v

9. A dispenser as claimed in claim 8 in which said downwardly extending portion on said pushbutton is directly engaged with said propellant discharging conduit member of said high pressure obturator and said high pressure obturator means has spring means within said cup urging said valving means to the closed position.

10. A dispenser as claimed in claim 8 in which said downwardly extending portion on said pushbutton is integral with said conduit member of said high pressure obturator means, and spring means in said cup engaged between the bottom of said downwardly extending portion and the bottom of said cup for urging said pushbutton upwardly to the closed position of both said obturator means.

11. A dispenser as claimed in claim 3 in which said high pressure obturator means comprises a valving means having a gas expansion inlet nozzle and a propellant discharging conduit member into which said inlet nozzle opens, said conduit member being movable substantially axially of said reservoir.

12. A dispenser as claimed in claim 3 in which said stopper has a downwardly depending flexible collar thereon engaged with the top of said reservoir for securing said stopper and said reservoir together.

13. A dispenser as claimed in claim 3 in which said pper has a cup therein through which said pushbutton extends downwardly, said high pressure obturator means ha i g an upwardly extending propellant discharge conduit member extending through the bottom of said stopper into said cup, said stopper having a slightly flexible collar forming the bottom of said cup and sealingly seated against the top of said reservoir for sealing said stopper against said reservoir.

14. A dispenser as claimed in claim 3 in which said high pressure obturator means comprises a valving means having a propellant discharging conduit member movable substantially axially of said reservoir, said stopper having a cup therein having an opening through the top of the stopper and an opening in the bottom thereof through which said propellant discharging conduit member extends, said pushbutton having a downwardly extending portion with a diameter substantially equal to the diameter of said cup and extending into said cup and sealingly slidable in said cup, said downwardly extending portion having a groove around the periphery thereof, said pushbutton having a first passage therethrough communicating with said propellant discharging conduit member of said high pressure obturator means and opening into said discharge nozzle and having a second passage therethrough with one end opening into the low pressure creating part of said discharge nozzle and with the other end opening into said groove around said downwardly depending portion, said second passage forming part of said fluid conduit means, the remainder of said fluid conduit means 'being a fluid conduit in said stopper extending from the bottom of said stopper within said receptacle to said cup, said fluid conduit means opening into said cup at a point at which said groove is positioned when said pushbutton is depressed, and said air inlet conduit means being an air inlet conduit in said stopper extending from within said receptacle to the upper part of said cup and opening into said cup at a point above said downwardly extending portion when said downwardly extending portion is in the depressed position.

15. A dispenser as claimed in claim 3 in which said low pressure obturator means comprises a first obturator in said fluid conduit means and a second obturator in said air inlet conduit means, said pushbutton being axially movable in said stopper and engaging said obturators for actuating them during movement of said pushbutton.

16. A dispenser as claimed in claim 3 in which said stopper has a cup therein having a top with an opening therethrough and an opening in the bottom thereof, said high pressure obturator means extending into said cup through the bottom opening thereof and said stopper being in sealing engagement with the top of said reservoir, said pushbutton having a downwardly extending portion with a diameter less than that of the opening in the top of said cup and extending into said cup and having a first passage therein controlled by said high pressure obturator means and being in communication with said discharge nozzle, said downwardly extending portion having a second passage therein having one end opening into the low pressure creating part of said discharge nozzle and the other end opening out into said cup and forming part of said fluid conduit means, a first annular obturating member in said cup and engaging said downwardly extending portion and defining a first sealed portion of said cup between the bottom of said cup and said first annular obturating member, the remainder of said fluid conduit means being a fluid conduit in said stopper extending from within said receptacle and opening into said first space in said cup, the air inlet conduit means being an air inlet conduit in said stopper extending from within the receptacle and opening into said cup above said first annular obturating member, and a second annular obturating member in the top of said cup and engaging said downwardly extending portion and normally closing off the opening in the top of said cup, the said second passage opening into said first space in said cup when the pushbutton is in the depressed position and said second annular obturating member being deformed to open said air inlet passage to the atmosphere when the pushbutton i in the depressed position.

17. A dispenser as claimed in claim 16 in which said downwardly extending portion has two grooves therearound, a lower groove into which said second passage opens and which has the inner periphery of said first annular obturating member engaged therein, and an upper groove having bleeder grooves in the downwardly extending portion opening into said upper groove, the inner periphery of said second annular member engaging in said second groove for normally sealing off said bleeder grooves to define a second sealed portion of said cup between said first annular member and said second annular member and into which said air inlet conduit opens.

18. An atomizer-dispenser assembly adapted to be mounted on an outer receptacle for the fluid to be dispensed, there being an inner reservoir for a propellant gas under pressure and positioned within said outer receptacle and having a high pressure obturator thereon, said assembly comprising a stopper adapted to close the outer receptacle and adapted to have said inner reservoir secured thereto, a pushbutton movably mounted in said stopper and adapted to engage the high pressure obturator, said pushbutton having a discharge nozzle therein adapted to receive propellant from said reservoir, said discharge nozzle having a low pressure creating portion, fluid conduit means extending from the interior of said receptacle through said stopper and said pushbutton to the low pressure creating portion of said discharge nozzle and having air inlet conduit means adapted to extend from the interior of said receptacle and extending to the outside of said dispenser, and low pressure obturator means coupled to said pushbutton and positioned in said fluid conduit means and in said air inlet conduit means and movable by said pushbutton for opening both said conduit means to place the interior of said receptacle in communication with said low pressure creating portion of said discharge nozzle and placing the interior of said receptacle in communication with the space outside the dispenser.

References Cited by the Examiner UNITED STATES PATENTS 2,947,449 8/ 1960 Hernandez 222394 2,973,883 3/1961 Modderno 222 3,040,991 6/ 1962 Fedit 239-304 3,217,936 11/1965 Abplanalp 222-136 M. HENSON WOOD, JR., Primary Examiner.

R. S. STROBEL, Assistant Examiner.

Claims (1)

1. AN ATOMIZER-DISPENSER FOR FLUIDS, COMPRISING AN OUTER RECEPTACLE HAVING AT LEAST ONE SPACE THEREIN FOR AT LEAST ONE FLUID TO BE DISPENSED, AN INNER RESERVOIR FOR A PROPELLANT GAS UNDER PRESSURE AND POSITONED WITHIN SAID OUTER RECEPTACLE, A STOPPER CLOSING SAID OUTER RECEPTACLE AND HAVING SAID INNER RESERVOIR SECURED THERETO, A PUSHBUTTON MOVABLY MOUNTED IN SAID STOPPER, A DISCHARGE NOZZLE FORMING PART OF SAID ATOMIZER-DISPENSER, A HIGH PRESSURE OBTURATOR MEANS COUPLED TO SAID PUSHBUTTON AND LOCATED BETWEEN SAID PROPELLANT RESERVOIR AND SAID DISCHARGE NOZZLE AND MOVABLE BY SAID PUSHBOTTON FOR PASSING PROPELLANT GAS FROM SAID RESERVOIR THROUGH SAID DISCHARGE NOZZLE, AND AT LEAST ONE LOW PRESSURE OBTURATOR MEANS COUPLED TO SAID PUSHBUTTON AND LOCATED BETWEEN SAID ONE SPACE IN SAID OUTER RECEPTACLE AND SAID DISCHARGE NOZZLE AND BETWEEN SAID ONE SPCE IN SAID OUTER RECEPTACLE AND THE OUTSIDE OF SAID DISPENSER AND MOVABLE BY SAID PUSHBUTTON FOR PLACING THE INTERIOR OF SAID AT LEAST ONE SPACE IN SAID RECEPTACLE IN COMMUNICATION WITH SAID DISCHARGE NOZZLE AND PLACING THE INTERIOR OF SAID ONE SPACE IN SAID RECEPTACLE IN COMMUNICATION WITH THE SPACE OUTSIDE THE DISPENSER.
US3289949A 1964-07-09 1964-09-08 Pushbutton dispenser for products in the fluid state Expired - Lifetime US3289949A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH899064A CH421847A (en) 1964-07-09 1964-07-09 Apparatus for fractionated distribution of a liquid or pulverulent product
CH991364A CH421848A (en) 1964-07-29 1964-07-29 Apparatus for fractionated distribution of a liquid or pulverulent product

Publications (1)

Publication Number Publication Date
US3289949A true US3289949A (en) 1966-12-06

Family

ID=25704078

Family Applications (1)

Application Number Title Priority Date Filing Date
US3289949A Expired - Lifetime US3289949A (en) 1964-07-09 1964-09-08 Pushbutton dispenser for products in the fluid state

Country Status (7)

Country Link
US (1) US3289949A (en)
BE (1) BE666886A (en)
DE (1) DE1425871B1 (en)
DK (2) DK114399B (en)
GB (2) GB1108428A (en)
LU (1) LU48983A1 (en)
NL (2) NL6508813A (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325056A (en) * 1966-02-23 1967-06-13 Du Pont Apparatus for codispensing a plurality of liquids
US3388838A (en) * 1967-02-13 1968-06-18 Rexall Drug Chemical Aerosol spray container for receiving a fluid commodity dispensing pressurized cartridge
US3389837A (en) * 1966-06-30 1968-06-25 Geigy Chem Corp Plug valve assembly for aerosol type dispensers of fluid products
US3390820A (en) * 1967-07-11 1968-07-02 Marraffino Additive fluid dispensing head
US3425600A (en) * 1966-08-11 1969-02-04 Abplanalp Robert H Pressurized powder dispensing device
US3442425A (en) * 1967-12-28 1969-05-06 Geigy Chem Corp Plug valve assembly for aerosol bomb type dispensers of fluid products
US3478933A (en) * 1967-01-27 1969-11-18 Geigy Chem Corp Valve and propellant cartridge assembly for pushbutton aerosol dispenser
US3491918A (en) * 1968-05-07 1970-01-27 Procter & Gamble Aerosol dispenser
US3506158A (en) * 1968-06-21 1970-04-14 Diamond Int Corp Aspirating type of dispenser
US3508710A (en) * 1969-05-13 1970-04-28 Ethicon Inc Disposable plastic aspirator
US3511419A (en) * 1967-04-13 1970-05-12 Geigy Chem Corp Push-button dispenser
US3527388A (en) * 1968-05-20 1970-09-08 Diamond Int Corp Aspiration-type liquid dispenser
US3636993A (en) * 1968-12-31 1972-01-25 Ciba Geigy Corp Adapter for filling head for filling aerosol dispenser
US3669316A (en) * 1970-07-27 1972-06-13 Diamond Int Corp Cartridge valve dispenser with pressure regulating valve
US3669313A (en) * 1967-10-11 1972-06-13 Ciba Geigy Corp Aerosol dispenser having flexible collapsible product containing sac
US3675824A (en) * 1970-08-07 1972-07-11 American Can Co Aerosol can with propellant actuated slide piston
US3680740A (en) * 1970-01-06 1972-08-01 Continental Can Co Dispensing container with plural closures
DE2221190A1 (en) * 1971-05-07 1972-11-16 Precision Valve Corp Valve for a pressurized delivery device
US3704814A (en) * 1970-07-15 1972-12-05 Coster Tecnologie Speciali Spa Valve for dispensing two distinct liquids from an aerosol container
US3767125A (en) * 1971-05-28 1973-10-23 Union Carbide Corp Multiple orifice aerosol actuator
US5018647A (en) * 1982-06-08 1991-05-28 Abplanalf Robert H Dispensing cap for use with pressurized container
US5027985A (en) * 1986-12-03 1991-07-02 Abplanalp Robert H Aerosol valve
WO1999043441A1 (en) * 1998-02-26 1999-09-02 Abplanalp Robert H Sprayer for liquids and nozzle insert
US6056163A (en) * 1999-07-28 2000-05-02 Lai; Jenn-Shyang Liquid dispenser
US6394364B1 (en) 2000-09-29 2002-05-28 Robert Henry Abplanalp Aerosol spray dispenser
US20020104898A1 (en) * 2000-10-24 2002-08-08 L'oreal Spray device having at least two vector gas outlet orifices
FR2823980A1 (en) * 2001-04-28 2002-10-31 Draeger Medical Ag of anesthetic dosing system
US20030085302A1 (en) * 2001-10-11 2003-05-08 L'oreal Device for spraying a substance onto a medium
WO2004052434A1 (en) * 2002-12-07 2004-06-24 Boehringer Ingelheim Pharma Gmbh & Co.Kg Atomizer for liquids
WO2008023015A1 (en) * 2006-08-22 2008-02-28 Glaxo Group Limited Actuator for an inhaler
US20080251547A1 (en) * 2007-04-12 2008-10-16 Ruiz De Gopegui Ricardo Dual Chamber Aerosol Container
US8523023B1 (en) * 2012-07-02 2013-09-03 Donald L. Coroneos Aerosol container resuscitator
US10036574B2 (en) 2013-06-28 2018-07-31 British American Tobacco (Investments) Limited Devices comprising a heat source material and activation chambers for the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000315A1 (en) * 1981-07-22 1983-02-03 Edgar, Paul Apparatus for propelling abrasive medium

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US2947449A (en) * 1955-10-31 1960-08-02 Colgate Palmolive Co Liquid dispensing apparatus and valve
US2973883A (en) * 1957-05-22 1961-03-07 Modern Lab Inc Pressurized dispensing device
US3040991A (en) * 1959-08-29 1962-06-26 Vaporisateurs Marcel Franck S Liquid sprayers
US3217936A (en) * 1963-01-09 1965-11-16 Robert Henry Abplanalp Dispenser for materials under pressure

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US2733102A (en) * 1956-01-31 Atomizing and dispensing apparatus
US2689150A (en) * 1951-11-30 1954-09-14 Coty Inc Pressurized dispenser
FR1208586A (en) * 1958-08-06 1960-02-24 A projection of a suspension of particles, more particularly perfume
NL257538A (en) * 1959-11-10
FR77894E (en) * 1960-02-08 1962-05-04 Step Soc Tech Pulverisation gas spray pressure
FR1297863A (en) * 1961-05-25 1962-07-06 Vaporisateurs Marcel Franck Improvements to sprayers, including sprays perfume products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947449A (en) * 1955-10-31 1960-08-02 Colgate Palmolive Co Liquid dispensing apparatus and valve
US2973883A (en) * 1957-05-22 1961-03-07 Modern Lab Inc Pressurized dispensing device
US3040991A (en) * 1959-08-29 1962-06-26 Vaporisateurs Marcel Franck S Liquid sprayers
US3217936A (en) * 1963-01-09 1965-11-16 Robert Henry Abplanalp Dispenser for materials under pressure

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325056A (en) * 1966-02-23 1967-06-13 Du Pont Apparatus for codispensing a plurality of liquids
US3389837A (en) * 1966-06-30 1968-06-25 Geigy Chem Corp Plug valve assembly for aerosol type dispensers of fluid products
US3425600A (en) * 1966-08-11 1969-02-04 Abplanalp Robert H Pressurized powder dispensing device
US3478933A (en) * 1967-01-27 1969-11-18 Geigy Chem Corp Valve and propellant cartridge assembly for pushbutton aerosol dispenser
US3388838A (en) * 1967-02-13 1968-06-18 Rexall Drug Chemical Aerosol spray container for receiving a fluid commodity dispensing pressurized cartridge
US3511419A (en) * 1967-04-13 1970-05-12 Geigy Chem Corp Push-button dispenser
US3390820A (en) * 1967-07-11 1968-07-02 Marraffino Additive fluid dispensing head
US3669313A (en) * 1967-10-11 1972-06-13 Ciba Geigy Corp Aerosol dispenser having flexible collapsible product containing sac
US3442425A (en) * 1967-12-28 1969-05-06 Geigy Chem Corp Plug valve assembly for aerosol bomb type dispensers of fluid products
US3491918A (en) * 1968-05-07 1970-01-27 Procter & Gamble Aerosol dispenser
US3527388A (en) * 1968-05-20 1970-09-08 Diamond Int Corp Aspiration-type liquid dispenser
US3506158A (en) * 1968-06-21 1970-04-14 Diamond Int Corp Aspirating type of dispenser
US3636993A (en) * 1968-12-31 1972-01-25 Ciba Geigy Corp Adapter for filling head for filling aerosol dispenser
US3508710A (en) * 1969-05-13 1970-04-28 Ethicon Inc Disposable plastic aspirator
US3680740A (en) * 1970-01-06 1972-08-01 Continental Can Co Dispensing container with plural closures
US3704814A (en) * 1970-07-15 1972-12-05 Coster Tecnologie Speciali Spa Valve for dispensing two distinct liquids from an aerosol container
US3669316A (en) * 1970-07-27 1972-06-13 Diamond Int Corp Cartridge valve dispenser with pressure regulating valve
US3675824A (en) * 1970-08-07 1972-07-11 American Can Co Aerosol can with propellant actuated slide piston
DE2221190A1 (en) * 1971-05-07 1972-11-16 Precision Valve Corp Valve for a pressurized delivery device
US3767125A (en) * 1971-05-28 1973-10-23 Union Carbide Corp Multiple orifice aerosol actuator
US5018647A (en) * 1982-06-08 1991-05-28 Abplanalf Robert H Dispensing cap for use with pressurized container
US5027985A (en) * 1986-12-03 1991-07-02 Abplanalp Robert H Aerosol valve
WO1999043441A1 (en) * 1998-02-26 1999-09-02 Abplanalp Robert H Sprayer for liquids and nozzle insert
US6056163A (en) * 1999-07-28 2000-05-02 Lai; Jenn-Shyang Liquid dispenser
EP1914005A1 (en) 2000-09-29 2008-04-23 Robert Henry Abplanalp Aerosol Spray Dispenser
US6394364B1 (en) 2000-09-29 2002-05-28 Robert Henry Abplanalp Aerosol spray dispenser
EP1923139A1 (en) 2000-09-29 2008-05-21 Robert Henry Abplanalp Aerosol spray dispenser
US20020104898A1 (en) * 2000-10-24 2002-08-08 L'oreal Spray device having at least two vector gas outlet orifices
US20100025495A1 (en) * 2000-10-24 2010-02-04 L'oreal Spray device having at least two vector gas outlet orifices
FR2823980A1 (en) * 2001-04-28 2002-10-31 Draeger Medical Ag of anesthetic dosing system
US20030085302A1 (en) * 2001-10-11 2003-05-08 L'oreal Device for spraying a substance onto a medium
US7159796B2 (en) 2001-10-11 2007-01-09 L'oreal Device for spraying a substance onto a medium
WO2004052434A1 (en) * 2002-12-07 2004-06-24 Boehringer Ingelheim Pharma Gmbh & Co.Kg Atomizer for liquids
WO2008023015A1 (en) * 2006-08-22 2008-02-28 Glaxo Group Limited Actuator for an inhaler
US20100218760A1 (en) * 2006-08-22 2010-09-02 Anderson Gregor John Mclennan Actuator for an inhaler
US20080251547A1 (en) * 2007-04-12 2008-10-16 Ruiz De Gopegui Ricardo Dual Chamber Aerosol Container
US7789278B2 (en) * 2007-04-12 2010-09-07 The Clorox Company Dual chamber aerosol container
US8523023B1 (en) * 2012-07-02 2013-09-03 Donald L. Coroneos Aerosol container resuscitator
US10036574B2 (en) 2013-06-28 2018-07-31 British American Tobacco (Investments) Limited Devices comprising a heat source material and activation chambers for the same

Also Published As

Publication number Publication date Type
NL6509710A (en) 1966-01-31 application
NL6508813A (en) 1966-01-10 application
BE666886A (en) 1966-01-14 grant
GB1108429A (en) 1968-04-03 application
DK114399B (en) 1969-06-23 grant
GB1108428A (en) 1968-04-03 application
DK113910B (en) 1969-05-05 grant
LU48983A1 (en) 1966-01-05 application
DE1425871B1 (en) 1970-10-29 application

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