US3642035A

US3642035A - Device for the filling of dispersers of the aerosol type having a separate self-contained propulsion unit

Info

Publication number: US3642035A
Application number: US55685A
Authority: US
Inventors: Jean Marand
Original assignee: Ciba Geigy Corp
Current assignee: Novartis Corp
Priority date: 1970-07-17
Filing date: 1970-07-17
Publication date: 1972-02-15
Anticipated expiration: 1989-02-15

Abstract

A device for the filling of a pushbutton dispenser of the aerosol type with a propelling medium and a product to be dispensed, wherein the propelling medium and the product are contained in separate receptacles, one within the other, the valve of the dispenser comprising a pushbutton removably mounted on a hollow sliding rod. The filling device comprises an adjustably mounted head traversed by an axial channel connected via transverse fittings with a line connected at one side thereof to a source of the propelling medium under pressure leading to be introduced therethrough into an axial disposed injection nozzle at the lower end of said filling head. A second oblique channel via a transverse fitting of the device operatively connects at another side to a source of the product to be distributed, with the lower end of the oblique channel also communicating with the injection nozzle. Hermetic seal members are lodged in the head for the purpose of working in conjunction with the rod of the pushbutton and defining in the injection nozzle two independent circuits intended, respectively, for the inflow of the propelling medium and of the product to be distributed.

Description

United States Patent Marand 51 Feb. 15, 1972 3,455,489 7/l969 Meshberg ..l4l/l04 X Primary Examiner-Charles J Myhre Att0rney-Wenderoth, Lind & Ponack [5 7] ABSTRACT A device for the filling of a pushbutton dispenser of the aerosol type with a propelling medium and a product to be dispensed, wherein the propelling medium and the product are contained in separate receptacles, one within the other, the valve of the dispenser comprising a pushbutton removably mounted on a hollow sliding rod. The filling device comprises an adjustably mounted head traversed by an axial channel connected via transverse fittings with a line connected at one side thereof to a source of the propelling medium under pressure leading to be introduced therethrough into an axial disposed injection nozzle at the lower end of said filling head. A second oblique channel via a transverse fitting of the device operatively connects at another side to a source of the product to be distributed, with the lower end of the oblique channel also communicating with the injection nozzle. Hermetic seal members are lodged in the head for the purpose of working in conjunction with the rod of the pushbutton and defining in the injection nozzle two independent circuits intended, respectively, for the inflow of the propelling medium and of the product to be distributed.

7 Claims, 3 Drawing Figures PATENTEDFEB 15 I972 sum 1 of 2 3 r u F INVENT OR JEAN MARAND ATTORNEYS PATENTEOFEB 15 I972 SHEET 2 OF 2 s. C 1 m INVENTOR JEAN MARAND FIG.2

BY 5 ATTORNEYS DEVICE F OR THE FILLING OF DISPERSERS OF THE AEROSOL TYPE HAVING A SEPARATE SELF- CONTAINED PROPULSION UNIT This is a continuation of application Ser. No. 764,1 l0, filed Oct. 1, 1968.

The invention relates to a filling or charging device which makes it possible to fill simultaneously or successively a pushbutton dispenser of the aerosol type with a propelling agent and a product to be distributed as by spraying, wherein the said propelling agent and the said product are contained in separate receptacles, being lodged one within the other.

The dispensers with which the filling device of this invention is intended to be used are not necessarily intended for the spraying of an active product which they contain, but can also be utilized for the purpose of dispensing the latter in the form of a foam, jet, paste, or any other form, it being understood that the two phases, namely, the product to be dispensed and the propelling agent, are contained in separate receptacles.

More specifically, the invention relates to dispensers of the preceding type wherein the distributor valve comprises a pushbutton mounted in a demountable manner on a hollow sliding rod, the said rod controlling two plugs situated, respectively, in the circuit of the propelling medium and in the circuit of the product to be distributed, a third circuit running through the valve or otherwise, and including means for subjecting the product in the container to be dispensed, to atmospheric pressure. In such dispensers, the pushbutton operated rod, as mounted with a sliding fit in the body of the valve, is traversed by two conduits or channels, each one belonging to one of the two first-aforementioned circuits. The outer apertures of the said conduits are cleared when the head of the pushbutton is withdrawn, whereas when the pushbutton is depressed the inner apertures of said conduits issue, respectively, into the propelling medium receptacle and into the receptacle containing the product.

Specifically, the filling or charging device ofthis invention is particularly adaptable for, but not limited to, use with dispensers of the type referred to in applicant's copending application Ser. No. 686,009 filed Nov. 28, 1967, now US. Pat. No. 3,451,596.

In the conventional prior art aerosol dispenser the product to be dispensed is usually in liquid form and is contained under pressure in the same receptacle as the propelling medium which is generally in the gaseous form. The product to be dispensed is introduced either before sealing the receptacle or after its sealing, it being noted that one of the principal features of a valve for the dispensers of this type is that of being capable of having a liquid flow through in a direction opposite to that which is provided for its utilization.

So far as the propelling medium of the prior art devices is concerned, it can be introduced either at the instant of sealing, before securing the hood bearing the valve on the body of the receptacle, or via a valve, wherein the receptacle is sealed in advance.

In the case of dispensers of the prior art type, a well-known technique is that of creating filling or charging devices comprising'a head which is activated in a vertical reciprocable movement and intended to cap the body of the dispensing valve during the filling process. The said head is traversed by an intake channel for the propelling fluid, the circulation of which is controlled by an inner valve.

Accordingly, aprimary object of the inventive device is to provide an improved filling or charging device of the general aerosol type embodying the pushbutton-type dispenser valve wherein the propelling medium and the product to be sprayingly distributed are contained in separate receptacles.

Pursuant to the present invention, in which the device for the filling with propelling medium and the. product. to be dispensed via said pushbutton-type dispenser having the propulsion medium and the product contained in separate receptacles, the said instant filling device'comprises a head having generally vertical adjustable motion, traversed by a first duct which is connected at one upstream side by a conduit connected to a source of propellingmedium under pressure, said first duct communicating via a central vertical duct in said filling head with an injection nozzle; and further characterized in that the said head comprises-a second duct connected also at an upstream side thereof bya conduit connected to a source of the product to be dispensed. and connected via an oblique channel in said head with the same injection nozzle, said filling head having sealing members disposed in the head and cooperating with the rod of the pushbutton of the dispenser for the purpose of filling and helping to define in the injection nozzle two independent circuits intended, respectively, for the flow of the propelling medium and of the product to be dispensed. A single device is thus able to ensure the simultaneous filling of the two receptacles of the dispenser.

According to a preferred embodiment, the injection nozzle thereof comprises a chamber into which issue the two intake ducts, respectively, for the propelling medium and the agent to be dispensed, the apertures of the-said two ducts being separated by an annular joint to be traversed in a sealed or packed manner by the uncapped rod of the pushbutton, when the dispenser is in a charge filling condition.

Other features of the invention will become apparent from the following detailed specification taken in conjunction with illustrative drawings, in which:

FIG. I is a simplified-schematic of a filling device pursuant to the invention, where the dispensers to be filled are shown by means of a dot-dash line;

FIG. 2 is an axial'sectional view on an enlarged scale of the injection head and of theupper part of a dispenser vessel to be filled, the said members being shown at rest; and

FIG. 3 is a view similar to FIG. 2 showing the foregoing in assembly during the filling process.

With reference to schematic FIG. I of the attached drawings, it will be noted that the filling device comprises generally a table 1 supporting the aerosol-type dispenser A, the propulsion and distribution phases of which are contained in separate receptacles. The filling device comprises a head 2 supported by the rod 3 of-a jack 4, which is in turn connected to a sleeve 5 sliding along a fixed standard 6. The position of the jack 4 is secured b'ya locking device 7.

The filling head 2 is connected bymeans of a flexible duct 8 to a dosage connecting fitting or jack 9, which is supplied with a propelling medium under pressure via a duct 11. Valves l2 and 13 control the circulation ofthe propelling medium. The dosage connecting fitting 9 comprises a sliding piston 14 actuated by a jack 15 with an adjustable bottom which is regulated by means of compressed air.

Also terminating in the filling head 2 is a second flexible duct 16 issuing from a similar dosage connecting fitting or jack 17 supplied with the product to be dispensed via a duct 18. The piston 19 of the dosage jack 17 is in turn regulated by an adjustable bottom jack 21 which is alsoactuated by compressed air, similar to jack 15.

The filling head 2 comprises (FIG. 2) two internally threaded ducts 22 and 23, which serve, respectively, the purpose ofsecuring the ducts 8 and 16.

The duct 22 interconnects with an axial chamber 24 within which is mounted a sliding core 25 of magnetic stock which constitutes a plunging core subjectable to the field of an electromagnet 26 superposed on said filling head2. Said core 25 includes a central recessed finger 27 which projects slightly axially therefrom in relation to it, said core 25 further having an annular radial projecting lip which is acted upon by a spring 28 interposed between it and the mounting flange 28a, thereby impelling said core towarda seat-.29-having an axial bore 29a which is coextensive with an axial duct or channel 31 of head 2, wherein said core serves the purpose of allowing passage of the propelling medium. At rest, the finger 27. cooperatively and normally engages the. seat 29 so as to prevent the propelling medium introduced under pressure via duct 8, from entering the channel 31.

Further, in accordance with the invention, the filling head 2 terminates-at its lower end'in an injection nozzle 30 consisting of a small feed collar which defines an injection chamber 33 into which channel 31 issues.

Also connecting with said chamber 33 is an obliquely disposed channel 34 which communicates with the threaded duct 23. The apertures of channel 31 and channel 34 are separated by a toroidal deformable gasket 35, the function of which will be explained hereinafter.

The filling device as designed and described is particularly capable of filling aerosol dispensers of the type shown in FIG. 2.

It will suffice to call attention here to the fact that such a dispenser comprises an outer receptacle 41 closed by a valve hood 42 having an aperture with a flared-out edge 43, and within the body of the valve an inside chamber 44 containing a first annular gasket or seal 45 which is tight or seated at low pressure and which controls the flow of the product to be dispensed. The seal 45 is pressed around its periphery by an annular body 46 within which the rod 47 of the pushbutton is mounted with a sliding fit. The rod 47, which contains a duct 48 for the flow of the propelling medium in a gaseous state, is acted upon by a spring 49 impelling it toward the closed position, and it traverses a sealing gasket 51 under high pressure. The latter is maintained in its seat by the collar 52 of the receptacle 53 containing the propelling medium which is generally liquefied. The receptacle 53 is secured on an annular rim 54 of the body 46 by means of its own rim 55 provided about the neck. From chamber 44 issues a plunger tube 56 which penetrates into the receptacle 4]. In its normal position, the free and reduced part 47a of the rod 47 is capped by a pushbutton 57 which contains a spray nozzle 58 connected by means of two suitable channels to channel 48 and to an axial channels 61 situated outside of the rod 47 and serving the purpose of conducting the product to be dispensed. The rod 47 is provided with an annular projection 63, which, when at rest, abuts against the gasket 45 under the action of the spring 49. The descent of the rod 47 is halted by means of stops 64 of the chamber 44.

According to another feature of the invention, the diameter and thickness of the injection nozzle are so proportioned as to enable it to be freely introduced into the annular space between the rod 47 and cylindrical aperture 43a, which terminates the truncated cone part 43, assuming that the pushbutton 57 has been previously withdrawn, or that it is not mounted. Moreover, the inside diameter of gasket is so proportioned complementally to sealingly receive the corresponding reduced part 47a of rod 47 to effect a sealed connection therewith.

Lastly, the height of the feed collar 32 of the projection nozzle and the slope of the truncated cone part 62 provided at the lower end of the head 2, are so proportioned as to permit reciprocal abutment of the annular projection 63 against the stops 64, while leaving a space between the

truncated cone parts

43 and 62 while the feed collar 32, in that position, assures the flexure of the resilient gasket and a tight contact with the latter.

The filling device thus designed operates in the following manner (FIG. 3):

The: dispenser A, which is finished but not provided with a pushbutton 57, is mounted in perpendicular alignment with the vertical axis XX of the head 2. The latter is then depressed by the action of the jack 4 until the cone portion 62 is arrested by the stops 64, the feed collar 32 then flexingly sealing the gasket 45 as stated above. At the same time, the rod 47 has penetrated into the injection chamber 33 with the tapered part 470 of the-said rod penetrating into the cleared gap of the gasket 35. The said penetration is brought about when the rod 47 has reached the end of its stroke in the descent, wherein aperture 480 communicably interconnects channel 48 and the receptacle 53, and said rod 47 projects beyond the gasket 51 and inside of the said receptacle.

At that moment the electromagnet 26 is excited and attracts the core 25. The obturating finger 27 uncovers the seat 29 and the propelling medium is thus introduced into channel 31 from where it flows into channel 48 of rod 47, and lastly into the receptacle 53 (arrows P). The circulation of the propelling medium is ensured by the piston 14 of the dosage jack 9 (FIG. 1

The product to be dispensed is thrust by the piston 19 of the dosage jack 17 (FIG. 1) into channel 34 from where 1 it penetrates into chamber 33 of the injection nozzle, preferably simultaneously, although the coincidence of the operations is not requisite. The collar 32 having depressed the gasket seal 45, the product to be distributed fills chamber 44 and flows therefrom into the plunger tube 56 from which point it enters inside the receptacle 41 (arrows D). The air contained in the receptacle 41 escapes, as indicated by the arrows M. lt-is replaced by the product to be dispensed.

Thus, the invention makes it possible to fill very rapidly and automatically the aerosol dispensers wherein the propelling medium and the product to be distributed are separated from each other. The electrovalve made up of the plug 27 and the seat 29 makes it feasible and possible to limit the losses of propulsion medium. On the other hand, since the product to be distributed generally has a low vapor pressure, it isnt necessary to provide another valve other than a calibrated valve at the outlet of the dosage piston 17 along the circuit of the said product.

The invention affords substantial advantages, primarily enabling empty dispensers, completely finished and ready for use so far as their mechanical members are concerned, to be filled by a single charging head. All that need be done, therefore, is to provide a single charging station which can be integrated into an automatic fabricating chain or productionrun.

Moreover, the manufacturer of such is able to deliver same completely finished to a processor who adds the product to be dispensed and whose only investment is the purchase of a filling head. One is thus able to separate distinctly the functions of the said two special features.

Obviously, the invention is not limited to the means described herein, and variants of embodiments can be produced, both with respect to the distributor head and to the control, as well as to the other parts of the aerosol dispenser proper.

Thus, by reason of a suitable arrangement of the valves in the P-circuit via conduit 8 of the propelling medium, one is also able, through a corresponding channel, to bring about a vacuum in the tank 53 before filling it with the propelling medium.

Similarly, if a supplementary circuit is provided in the filling device, with suitable valves, one is able to inject a scrubbing liquid, such as a disinfectant, into circuit D via conduit 10 and to reaspirate it, whereupon the product to be dispensed is charged therein.

What is claimed is:

1. A filling and charging device for filling empty pushbutton, valve-operated dispensers of the aerosol type wherein the propelling medium and product to be dispensed are contained in separate receptacles, and wherein the dispenser valve comprises a removably mounted pushbutton on the upper end of a hollow, vertically depressible sliding rod having flow paths therealong for the propelling medium and for the product, one of which is the hollow interior of said rod, and attendant valve seal means, said rod normally biased in a raised valve closed condition, said filling and charging device comprising in combination:

a. a filling head body adapted for vertically adjustable mounting on support means, including a depending injection nozzle at the lower outer end thereof and having a recessed inner end;

b. said body including first and second channelways independently connectable with said injection nozzle interiorly of said body, said first channelway connectable exteriorly with an exterior source of propelling medium introducible therethrough under pressure, and said second channelway connectable exteriorly with an exterior reservoir of dispensable product material therethrough; and

. hermetic seal valve means in said body including means to selectively effect opening and closing of said first channelway, and further including second seal means therein for cooperative engagement with said rod means of the dispensers pushbutton-operated valve means between said flow paths to cooperatively effect temporary separation of the first and second channelways when said filling head is in temporary assembly with said dispenser container to be filled and charged.

2. A filling and charging device as defined in claim 1 wherein the valve means of paragraph (c) includes electromagnetic valve means including:

a. an annular electric magnet with selectively operable switch means connected to a source of electrical energy; and

b. a resiliently biased center core means constituting a vertically disposed reciprocable shiftable valve member and including means for normally biasing said valve member in its hermetically closed condition.

3. A filling and charging device as defined in claim 1 wherein the valve means of paragraph (c) in said body includes:

a. a deformable valve seat operatively disposed in said first channelway and having a valve port therein;

b. electromagnetic valve means including:

1. an annular electromagnet with selectively operable switch means connected to a source of electrical ener- 2. a resiliently biased center core means constituting a vertically disposed reciprocably shiftable valve member and including means for normally biasing said valve member against the valve seat member to hermetically close said valve port therein in its hermetically closed condition.

4. A filling and charging device as defined in claim 1 whe in the injection nozzle comprises an annular, axially projecting collar adapted to be inserted into the injection chamber encircling the dispenser rod and interposed between it and the surrounding means supporting the valve means of the aerosol-type container to be filled.

5. A filling and charging device as defined in claim 1 wherein the injection nozzle includes a chamber into which the two inflow channelways issue via a separate central and peripheral aperture, respectively, and annular hermetic seal means recessed adjacent the inner end of said noule and acting to separate within the nozzle said apertures of the two channelways and thereby complete therein the defining of the two independent filling circuits for the respective inflow ofthe propulsion medium and of the product to be dispensed, when said annular seal is engaged by the uncapped depressible rod of the pushbutton-operated valve of the dispenser being filled and charged.

6. A filling and charging device for filling empty pushbutton, valve-operated dispensers of the aerosol type wherein the propelling medium and product to be dispensed are contained in separate receptacles, and wherein the dispenser valve comprises a removably mounted pushbutton on the upper end of a hollow, vertically depressible sliding rod having flow paths therealong for the propelling medium and for the product, one

introducible of which is the hollow interior of said rod, and attendant valve seal means, said rod normally biassed in a raised valve-closed condition, said filling and charging device comprising in combination:

a. a filling head body adapted for vertical reciprocable mounting on support means, and having a relatively small diameter vertical, axial bore communicating at inner and outer opposite ends with enlarged counterbore means, said body having a lowermost truncated cone shape with an axially projecting injection nozzle defined in part by the aforesaid counterbore at theputer end; b. a valve seat member having a like central bore coextensive with the axial bore in said body and said seat member being disposed in a counterbore adjacent the inner end of said body axial bore, said valve seat member having an upper end together with said bore constituting a scalable valve port;

0. valve means superposed on said body device including a vertically disposed valve member reciprocably shiftable for selective engagement against said valve seat to alternately close and open said valve port;

d. said filling head body having a first inlet passage whose outer end communicates with an exterior source of propelling medium to be introduced therethrough into a receptacle within an associated aerosol-type dispenser, and whose inner end communicates via said upper end counterbore and enlarged counterbore, via said valve means and axial bore means with said lower end counterbore and centrally with said injection nozzle of paragraph (a); and said body having a second inlet passage communicating with an exterior source of dispensing product material to be introduced therethrough into a separate compartment within said aerosol-type dispenser, said second passageway communicating via an oblique passageway interconnecting interiorly with the outer periphery of said injection nozzle of paragraph (a);

e. said injection nozzle counterbore portion adjoining a tapered reducing bore section interconnecting it with said axial vertical bore of the body, and annular seal means recessed adjacently intermediate said vertical bore and tapered reducing bore sections;

f. said nozzle, reducing bore with seal means, and axial bore being proportioned to complementally mate with the upper portion of the depressible sliding rod and attendant valve seal means of an associated aerosol dispenser container between said flow paths to provide substantially concurrent filling and charging of said container with the product material and propelling medium respectively; and

g. means to effect predetermined actuation of said valve means to permit the desired inflow of said respective product and propelling medium.

7. A filling and charging device as defined in claim 6 wherein:

a. the valve seat of paragraph (b) is of deformable material;

and

b. the valve means of paragraph (c) includes electromagnetic valve means having a pluging core valve member selectively engaging against the deformable valve seat to hermetically seal same, and means normally biasing said core valve member in its closed condition.

Claims

1. A filling and charging device for filling empty pushbutton, valve-operated dispensers of the aerosol type wherein the propelling medium and product to be dispensed are contained in separate receptacles, and wherein the dispenser valve comprises a removably mounted pushbutton on the upper end of a hollow, vertically depressible sliding rod having flow paths therealong for the propelling medium and for the product, one of which is the hollow interior of said rod, and attendant valve seal means, said rod normally biased in a raised valve closed condition, said filling and charging device comprising in combination: a. a filling head body adapted for vertically adjustable mounting on support means, including a depending injection nozzle at the lower outer end thereof and having a recessed inner end; b. said body including first and second channelways independently connectable with said injection nozzle interiorly of said body, said first channelway connectable exteriorly with an exterior source of propelling medium introducible therethrough under pressure, and said second channelway connectable exteriorly with an exterior reservoir of dispensable product material introducible therethrough; and c. hermetic seal valve means in said body including means to selectively effect opening and closing of said first channelway, and further including second seal means therein for cooperative engagement with said rod means of the dispenser''s pushbutton-operated valve means between said flow paths to cooperatively effect temporary separation of the first and second channelways when said filling head is in temporary assembly with said dispenser container to be filled and charged.

2. A filling and charging device as defined in claim 1 wherein the valve means of paragraph (c) includes electromagnetic valve means including: a. an annular electric magnet with selectively operable switch means connected to a source of electrical energy; and b. a resiliently biased center core means constituting a vertically disposed reciprocable shiftable valve member and including means for normally biasing said valve member in its hermetically closed condition.

2. a resiliently biased center core means constituting a vertically disposed reciprocably shiftable valve member and including means for normally biasing said valve member against the valve seat member to hermetically close said valve port therein in its hermetically closed condition.

3. A filling and charging device as defined in claim 1 wherein the valve means of paragraph (c) in said body includes: a. a deformable valve seat operatively disposed in said first channelway and having a valve port therein; b. electromagnetic valve means including:

4. A filling and charging device as defined in claim 1 wherein the injection noZzle comprises an annular, axially projecting collar adapted to be inserted into the injection chamber encircling the dispenser rod and interposed between it and the surrounding means supporting the valve means of the aerosol-type container to be filled.

5. A filling and charging device as defined in claim 1 wherein the injection nozzle includes a chamber into which the two inflow channelways issue via a separate central and peripheral aperture, respectively, and annular hermetic seal means recessed adjacent the inner end of said nozzle and acting to separate within the nozzle said apertures of the two channelways and thereby complete therein the defining of the two independent filling circuits for the respective inflow of the propulsion medium and of the product to be dispensed, when said annular seal is engaged by the uncapped depressible rod of the pushbutton-operated valve of the dispenser being filled and charged.

6. A filling and charging device for filling empty pushbutton, valve-operated dispensers of the aerosol type wherein the propelling medium and product to be dispensed are contained in separate receptacles, and wherein the dispenser valve comprises a removably mounted pushbutton on the upper end of a hollow, vertically depressible sliding rod having flow paths therealong for the propelling medium and for the product, one of which is the hollow interior of said rod, and attendant valve seal means, said rod normally biassed in a raised valve-closed condition, said filling and charging device comprising in combination: a. a filling head body adapted for vertical reciprocable mounting on support means, and having a relatively small diameter vertical, axial bore communicating at inner and outer opposite ends with enlarged counterbore means, said body having a lowermost truncated cone shape with an axially projecting injection nozzle defined in part by the aforesaid counterbore at the outer end; b. a valve seat member having a like central bore coextensive with the axial bore in said body and said seat member being disposed in a counterbore adjacent the inner end of said body axial bore, said valve seat member having an upper end together with said bore constituting a sealable valve port; c. valve means superposed on said body device including a vertically disposed valve member reciprocably shiftable for selective engagement against said valve seat to alternately close and open said valve port; d. said filling head body having a first inlet passage whose outer end communicates with an exterior source of propelling medium to be introduced therethrough into a receptacle within an associated aerosol-type dispenser, and whose inner end communicates via said upper end counterbore and enlarged counterbore, via said valve means and axial bore means with said lower end counterbore and centrally with said injection nozzle of paragraph (a); and said body having a second inlet passage communicating with an exterior source of dispensing product material to be introduced therethrough into a separate compartment within said aerosol-type dispenser, said second passageway communicating via an oblique passageway interconnecting interiorly with the outer periphery of said injection nozzle of paragraph (a); e. said injection nozzle counterbore portion adjoining a tapered reducing bore section interconnecting it with said axial vertical bore of the body, and annular seal means recessed adjacently intermediate said vertical bore and tapered reducing bore sections; f. said nozzle, reducing bore with seal means, and axial bore being proportioned to complementally mate with the upper portion of the depressible sliding rod and attendant valve seal means of an associated aerosol dispenser container between said flow paths to provide substantially concurrent filling and charging of said container with the product material and propelling medium respectively; and g. means to effect predetermined actuation of said valve means to permit the desired inflow of said Respective product and propelling medium.

7. A filling and charging device as defined in claim 6 wherein: a. the valve seat of paragraph (b) is of deformable material; and b. the valve means of paragraph (c) includes electromagnetic valve means having a pluging core valve member selectively engaging against the deformable valve seat to hermetically seal same, and means normally biasing said core valve member in its closed condition.