DE2127123A1 - Device for the simultaneous dispensing of two substances from an aerosol packaging and method for preparing and filling such - Google Patents

Description

DIPL.-ING. A. GRÜNECKER sooo MÖNCHEN

Maximilianslrcßo Ί3

DR.-ING. H. KINKELDEY

DR.-ING. W. STOCKMAIR, Ae. E. ₍ ca, _jF ns * oftechw telegrams Monapat monks

DFi. DtPL.-CHEM. W. FISCHER £ I £ / I / O Telex 05-28380

PATENT LAWYERS

PH 4008 / Yes.

PHILIP HESHBERG,

15 Stoneleigh Road, Fairfield, State of

Connecticut, U.S.A.

Device for the simultaneous delivery of two substances from an aerosol package and methods of preparing and filling one

The invention relates to a device for the simultaneous delivery of two substances from an aerosol package and to a method of preparing and filling a package for dispensing two at a time Aerosols.

In general, the invention is concerned with the delivery of substances, particularly with the essentially simultaneous delivery Release of two substances, one of which is in an inner container and the other in one of the

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Inner container enclosing outer container is located.

As devices for the. For the release of substances, aerosol packaging or units are common, which include a container, a can or the like. have, wherein the substance to be dispensed is contained together with a propellant. The propellant generates such a pressure inside the container that when the device is actuated with the aid of an externally accessible push button, the substance is dispensed! ψ "Devices of this type are also known which are used to dispense a mixture of two substances, but the two substances have so far been dispensed through a single valve«

In contrast to this, the invention creates an arrangement in which each container is assigned its own valve is and the two containers to a device £ ir the simultaneous delivery of two substances through a connector is connected * that sits on the valve for the inner container and not just the two containers connects with each other, but also keeps the valve for the outer container in a position in which it is with is aligned with the valve for the inner container.

The invention thus relates to a device for the simultaneous delivery of two substances from one Aerosol packaging, which * has an inner and an outer containerx *, which ge one of the substances to be dispensed included «According to the invention, this is a elongated connector body present, which at one end with a device for reclamping the

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Inner container is provided and a hole for receiving of the valve stem of the valve for the inner container as well as at the other end for receiving -ein exit- or Dispensing valve has a socket in which on a mounting cap the outlet or dispensing valve, the connector and the inner container in the outer container are attached such that the valve stem of the dispensing valve is flush with the valve stem of the inner container cooperates, wherein in the connector body for establishing a connection with the inner or outer container The substances located channels are formed, which by actuating the valve stems for the delivery of substance are controllable from each container.

The connector of the device according to the invention can be used to accommodate various valve arrangements set up, e.g. a valve arrangement for the continuous delivery of a spray or stream or a valve arrangement through which each time a dispensing valve button is pressed a dosed amount of a Mixture of two substances can be released. The invention also provides a pressure relief device, which with certainty prevents a pressure increase to a value at which there is a risk of bursting of the outer container.

The invention also allows the filling and under certain circumstances even repeated filling of an or both of the tanks. For example, it is very useful in the production, inner container with a closed To store the valve and, if necessary, to unite with an external container. The invention enables effortless

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Fill the outer container with after it has been combined a filled or partially filled inner container. Further, one or both of the containers can be used at the same time filled with the substance to be dispensed and / or with an aerosol propellant.

For this purpose, in a method for producing and / or filling a package for simultaneous delivery of two substances, in particular aerosols, provided according to the invention that one has an inner container with a -Substance and / or a propellant fills and closes by a valve that prevents the release of material from the Controls the inner container. You can then check the closed inner container for leaks, defects and the like. check and Store the containers found to be good until the packaging is assembled. To produce packaging for the simultaneous release of two substances is then connected to the inner container with the connector and with this also has its own outlet valve such that the stems of the valve for the inner container and the The outlet valve is aligned with one another and one in the connector communicates with the interior of the outer container standing channel interacts with a second opening of the outlet valve shaft.

Further features, details and advantages of the invention emerge from the following description of exemplary embodiments with reference to the drawings. It shows t

Fig. 1 is a side view, partly in section, of a device for the simultaneous dispensing of two substances according to the invention,

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Figure 2 is a sectional view of part of the device after Pig. 1 with two valves in the closed position,

3 shows a sectional view corresponding to FIG. 2 with the valves in the dispensing position,

Fig. 4 is a sectional view taken along line 4-4 in Fig. 2,

FIG. 5 is a sectional view corresponding to FIG. 2 with an arrangement of two valves for the simultaneous delivery of two substances in dosed quantities,

6 shows a sectional view of the valves shown in FIG. 5 in the dispensing position and FIG

FIG. 7 is a sectional view of that shown in FIG Valves in filling position.

In the arrangement shown in Figs. 1 to 3 is located An inner container 10 is in an outer container. The two containers contain one which is under pressure Substance. Both substances are to be released simultaneously through valves that are connected to a connector according to the invention are connected to each other,

The inner container 10 is a self-contained unit, which fall .One with an amount of substance filled M1 and a valve 12 can be closed, which controls the delivery of the substance from the container "Ken can prepare the inner container, for leaks vs \ * . check and

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then store before going into the device for simultaneous Release of two substances is incorporated. This possibility is provided in the manufacture of such devices for the simultaneous delivery of two substances is an important advantage.

The inner container 12 is fastened with the aid of a flange 12a which is flanged onto the neck 10a of the inner container 10. It has a reciprocable shaft 13t ^dei> a seal disc 14 passes through and \ "whose end portion 15 projecting from the end of the container 10th In the above end portion 15 of the stem there is a longitudinal channel 16 which communicates with a control port 17 2, which is normally closed by the washer 14. The shaft 13 is resiliently held in the protruding position by a spring 18.

To assemble the device, the inner container -10 is pushed through the upper opening 19 of the outer container used in these. The outer container is closed by an outlet valve 20, which has a housing 21 and a Has fastening cap 22 on the edge 23 of the fc opening is flared.

A connector 24, which is preferably made of synthetic resin, is used to fix the inner container inner end 25 is provided with the flange 12 a, which tightly spans the upper end of the inner container, so that the Connector 24 is connected to the inner container 10 '... in the outer end portion 26 of the connector is a central bore 27 for tightly receiving the housing 21 of the outlet valve to be attached to the connector 24 20. The valve housing 21 contains an outlet chamber 28

and a arranged in this, reciprocating shaft 29, which is of a spring 30 normally in a extended position Fig. 2 is held.

The connector 24 is in the area of the inner end of the housing provided with a sealing ring 31 which has a central opening 31a which receives the protruding end portion 15 of the valve stem 13 so that this is aligned with the valve stem 29. In a chamber 32 of the connector 24, a pressurized substance M2 -from the outer container through a dip tube $ 3 and one Channel 34- enter. The chamber 32 has an outlet channel 35 in connection, which is normally tightly closed by the valve stem 13 (Fig. 2). Of the Valve stem 13 has a second control opening 36, which is connected to the longitudinal channel 16 and is normally closed by the annular disk 31 as shown in FIG. Through the second control opening 36, the chamber 32 is with the Longitudinal channel 16 connected in the valve stem 13 when this is moved into the dispensing position (Fig. 3).

The discharge valve stem 29 is formed at its inner end part with channels 37 that communicate with the channel 16 are in communication in the valve stem 13 and to the outlet chamber 28 lead in the housing 21. The shaft 29 has in its outer end part a channel 38, which with the usual outlet channels 39> 4-0 in the dispensing button 41 is in communication. Which is attached to the protruding end portion of the valve stem 29. The shaft 29 has furthermore a passage opening 42 which is in communication with the longitudinal channel 39 and normally according to FIG 2 is closed by an annular disk 43 which is provided at the outer end of the outlet chamber 28

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is. When the shaft is moved inward, the opening is made 42 according to FIG. 3 into the outlet chamber 2S.

When pressing the button 41 in the direction of the Arrow A shown in Fig. 1 move the two Shafts against the action of the springs 18 and 30 in the position shown in Fig. 3, in which the two openings 17 * 36 are in connection with the substances M1, M2 located in the two containers and in which the passage opening 42 is in communication with the outlet chamber 28, "so that the substances supplied are discharged through the outlet channels 39-40.

As a result of the use of two separate valves, you can choose the distance between the openings 17 »36 and 42 in the longitudinal direction of the shafts the Precisely control the joint delivery of the two substances. at the inward movement of the shaft 29 becomes the passage opening 42 is moved into the outlet chamber 28, so that this through the channels 39 »40 present in the push button connected to the atmosphere. With a continued inward movement of the shaft 29, the two move Shafts inwards so that the openings 17 »36 are effective and from both containers through the channels 16, 37 into the exit chamber and the exit channels substance is delivered. By suitable choice of the size and arrangement of the openings 17 »36, the delivery of the Substances M1, M2 from the two openings with regard to Control the amount and time precisely in such a way that the two substances are in the desired mixing ratio be delivered. For example, the substance M2 located in the outer container 11 can be a dye or a resin and the substance M1 located in the inner container 10

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Be a developer for the dye or an accelerator or hardener for the resin. If necessary, can you arrange the opening 17 so that it is slightly in front of the opening 36 are opened to ensure that that the accelerator is in this when the mixture is dispensed, and that the opening 17 is a little later than the opening 37 is closed, so that any resin residues from the outlet chamber and the outlet channels be blown out.

A safety device can be provided on the outer container to relieve pressure, if substance from the inner container has inadvertently got into the outer container, with the one located in it Substance has reacted and this reaction has led to such a high pressure in the outer container that a There is a risk of the outer container bursting. According to Big. 2, the safety device has one on the Connector 24- shaped, upwardly open socket 50 which carries a plug 51 which is supported by a spring 52 in a pressure relief opening 53 of the mounting cap 22 is printed. The bottom of the plug 51 is with a flexible membrane 54- which extends across the holder 50, so that an in the outer container 11 Excessive pressure acting on membrane 54- is too high, this pushes the stopper 51 by overcoming the spring force pulls out of the recess 53 and thereby the outer container 11 is depressurized with the atmosphere connects.

It may sometimes be desirable to dispense two substances at the same time in metered amounts. In In this case one can use the embodiment shown in FIG.

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Use form to advantage. This is in Fig. 5 in the Shown closed position and has an inner container 110, which contains a substance M1 and through »a Metering valve 112 is closed, the valve stem 113 of which is in the closed position in one of the valve stem 113 surrounding metering valve chamber encloses a predetermined amount of the substance located in the inner container 110, while after an inward movement of the valve stem 113, this trapped substance is released. Of the Shank 113 had a protruding part 115 with a "opening 117.

The inner container is connected by a connector 124 to the outlet valve 120 mounted in the outer container 111 containing a substance M2. The valve stem 129 of the valve 120 is essentially aligned in the manner described with reference to FIG the protruding part 115 of the valve stem of the inner container 110. The connector 124 sits tightly and frictionally on the neck 110a of the inner container and has a hole for receiving the valve housing 121 of the dispensing or outlet valve.

The connector also includes a chamber 132, which is connected to a dip tube 133 and to the interior of the outer container via a channel 135, the Channel through valve stem 113 of the inner container valve is controlled. When the metering valve is in its normal position (Fig. 5), the valve stem controls 113 the supply to the metering chamber, which is formed by the channels 135a, 135b and the space 135c. the The metering chamber surrounding the shaft of the inner container valve 112 is now removed from the inner container with the substance M1

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110 filled. The substance from the outer container 111 flows through the channel 155 to the opening of the inner one Shaft, then through channel 116 of the inner shaft to channel 136 in the shaft of outlet valve 120 and through the opening 136a in its chamber 132 * until it is in The predetermined amount of substance M2 is located in the channel and chamber of connector 124.

When the dispensing button 141 is pressed inward in the direction of arrow A (FIG. 5), both shafts are moved inward, so that the control opening 117 between the chamber 132 and the channel 135 is closed , while at the same time the metering valve of the inner container interrupts the supply of the substance . With a further inward movement of the shaft, the opening 117 enters the dosing chamber of the inner container 110 , from which the substance M1 passes through the opening 117 and the longitudinal channel 116 to the upper shaft and is mixed with the substance M2, which is in the chamber 1J2 of the exit valve 120 is located. It must be ensured that the pressures in the inner chamber and the outer chamber are related to one another in such a way that the two substances M1, M2 mix well in this phase. With continued inward movement of the shaft 129, the opening 14-2 passes into the chamber 135c of the outlet valve, so that the mixture consisting of the two substances in a predetermined quantity through said channels and through an opening 142 in the protruding shaft end part 115 and through channels 139 » 140 is dispensed in the push button 141.

When the push button is released, the valves return to their normal position and the two dosing chambers are filled for the next dispensing process.

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The valves can be moved into the filling position shown in FIG. 7 with the aid of a suitable filling nozzle (not shown) which is attached to the end of the shaft 129. In the position according to FIG. 7, sealing points Sy, Sp and Sz are bridged by passages B ^, Bp and B ₇ provided on the shafts, so that a filling path is available for the two containers. If the inner and outer containers contain only the substances to be dispensed, the propellant can be introduced into the assembled containers. If, as preferred, the inner container contains the substance to be dispensed and pressurized propellant, propellant can be introduced into the outer container, the pressure in the inner container ensuring that the propellant passes through the channels into the outer container. But you can also introduce the substances into both containers and introduce the propellant into both containers at the same time.

All features and advantages arising from the claims, the description and the drawing of the invention, including structural details, spatial arrangements and method steps, can be essential to the invention both individually and in any combination.

2 0 9 8 11/0286

Claims (9)

Patent claims: I 1. ) Device for the simultaneous dispensing of two substances from an aerosol packaging, which has an inner and an outer container, each of which contains one of the substances to be dispensed, characterized by the fact that an elongated connector body is present, which is provided at one end with a device for reclamping the inner container and has a bore for receiving the valve stem of the valve for the inner container and at the other end a socket for receiving an outlet valve in which an outlet valve for the connector body and the inner container is attached to a fastening cap are fastened in the outer container in such a way that the valve stem of the outlet valve cooperates in alignment with the valve stem of the valve for the inner container, channels being formed in the connector body for establishing a connection with the substances in the inner or outer container, which channels are formed by actuating the valve stems to submit sub punch from each container are controllable. 2. Device for the delivery of two substances, g> * e denotes an inner container with a first valve device which has a protruding, reciprocating valve stem as well as has means for dispensing pressurized substance from the inner container, through a Outer container that is a pressurized substance 209811/0286 and is provided with a second valve device which has a housing and a second reciprocating shaft protruding from the housing, as well as a connector which is in connection with the outer container and mechanically connects the two valve devices to one another that the shafts aligned with one another, wherein the shafts channels which are arranged -to the shafts as are provided with an outlet opening in the second shaft and two passage openings for one of the substances each present in the two containers in compound and these openings relative ψ, that in a By exerting pressure on the shaft of the second valve device, the inward movement of the shafts from a normally occupied closed position opens the outlet opening and the passage openings and thereby connects the two containers with the channels of the outlet opening while releasing the substances from both containers. 3. Apparatus according to claim 1 or 2, characterized in that the connector on one Has an annular flange at the end which rests tightly and elastically on the end face of the inner container, and that the connector has a bore for receiving and holding the valve housing. 4-, device according to claim 2 or 3, characterized marked net that the distance between the passage openings in the direction of movement of the Shafts the duration of the delivery of each substance 209811/0286 determined during a dispensing process. 5. Device according to one of claims 2 "to 4, marked you "sch an establishment to seal the two access openings when both shafts are extended into the closed position are. ----- 6. Device according to one of claims 2 to 5j marked by a dip tube that with its one end part protrudes into the outer container and at its other end with an existing in the connector Chamber is in communication, which cooperates through a channel with one of the passage openings. 7. Device according to at least one of claims 1 to 6, characterized in that that the valve housing is attached to the outer container by means of a fastening cap which has a pressure relief opening has, which is closed by a plug that is normally under spring load in a Closed position and which is connected to a membrane that reduces the pressure in the interior of the outer container is exposed in such a way that under the action of an overpressure prevailing in the outer container The membrane pulls the stopper out of the closed position while relieving pressure, so that the outer container bursts is prevented. 8. Device for dispensing a mixture of dosed Quantities of two substances, labeled through an inner container that is connected to a 209811/0286 metering first valve device is provided which a protruding, reciprocating valve stem and means for dispensing a predetermined amount of the substance under pressure in the inner container has, by an outer container containing a substance under pressure and with a second valve means is provided, which has a valve housing and a second, backward protruding from this housing and having moveable shaft, and by a connector connected to the one metering device for the second "Has substance and both valve devices so with each other connects that the shafts are aligned with each other, which have channels that are arranged with one in the connector Mixing chamber and an outlet opening formed in the second shaft are in communication, one brought about under the action of a pressure on the stem of the second valve device Inward movement of the two shafts from the closed position they normally assume leads to the fact that initially the metering devices are closed with respect to the containers as well as the two substances are mixed with each other and that then the outlet _fc opening is moved into a position for the delivery of the substances mixed with one another. 9. Process for producing and / or filling a package for the simultaneous delivery of aerosol substances, characterized in that an inner container is filled and through a valve closes, which has a protruding valve stem, that the closed inner container for tightness, Errors and the like checks that the perfect interior 209811/0286 "connects container with a connector at the end of the inner container is resiliently connected to an outlet valve, one of which is connected to the valve stem of the inner container has aligned valve stem that the connector and the inner container in an outer container carrying outlet valve attaches to the outer container, which is to be dispensed from it Substance already contains, and that one moves the valve stems into a flushing position scwie a propellant in the packaging initiates. 20Ü11 / Ö288