Aerosol for the storage and mixing of at least two separate components

The invention relates to a pressure container according to the preamble of claim 1.

Apart from the known simple pressure vessels for the removal of a single flowable phase, see, eg, US Patent No. 2,662,668, also pressure vessel eg from US-A-3992003 are known, in which several components are housed in separate sub-containers and shortly before the processing means an adapter head together and are then discharged as a mixture. A disadvantage of this design is that on the one hand a uniform mixing of the components and on the other hand, a constant mixing ratio are not granted does.

Next, the exhaust valves of each sub-containers should be placed in the hopper, where standardized valves should be used. However, this is practically the arched hoppers generally used today not possible. Reference is made to concurrently filed EP-A-0249100 of the applicant.

From FR-A-2546131 a profiled valve plate is known, which is stamped from a two-layer sheet and deformed together. Also beading is done with two layers. However, for the manufacture of a flat funnel this Herstellart inapplicable because due to the greater exposure of the hopper, especially at high bridges, the two-ply sheet would have such a large wall thickness that a beading at the edge of the shell would be possible, or only with great effort ,

From FR-A-2078188, although an arched funnel is designed with two layers, but the inner layer is a plastics lining. However, this can not amplify the funnel part of metal. As to the beading are no problems, but also those Herstellart for the formation of a flat funnel is not applicable.

The invention is based on the object of a pressure vessel of the aforementioned type in such a way that it can be applied to maintain a constant mixing ratio with high pressure to obtain standardized exhaust valves used for the completion of part of the container and the mixing ratio of the components in a simple manner demanded ratio value can be adjusted.

This object is achieved according to the invention by the characterizing features of claim 1.

The invention is illustrated in the drawing in one embodiment of a pressure vessel for two part container and several different accessories and described below. Show it:<dl id="dl0001"><dt>Fig. 1</dt><dd>a section of a pressure vessel with two partial containers along the line I -. I in Figure 2, </dd><dt>FIG. 2</dt><dd>a plan view of the funnel of the pressure vessel of FIG. 1 from the direction II in Fig. 1,</dd><dt>Fig. 3</dt><dd>is a sectional view of the funnel of the pressure vessel of Figure 1 along the line III - III in FIG. 2.</dd><dt>Fig. 4</dt><dd>a further section of the funnel of the pressure vessel of FIG. 1 along the line IV -IV in Fig. 2,</dd><dt>Fig. 5</dt><dd>a detail of the section according to Fig. 4 in an enlarged scale with a closed ventilation device and</dd><dt>Fig. 6</dt><dd>the same detail as in Fig. 5, but with open ventilation device,</dd><dt>Fig. 7</dt><dd>a section of a placed onto the valves of the partial container adapter head,</dd><dt>Fig. 8</dt><dd>an actuating device for the adapter head,</dd><dt>Fig. 9</dt><dd>a further actuating device for the adapter head,</dd><dt>Fig. 10</dt><dd>a section of the sealing member of an assembled piston of FIG. 1,</dd><dt>Fig. 11</dt><dd>a section of the piston part of the piston according to Fig. 1 and</dd><dt>Fig. 12</dt><dd>a partial plan view of the sealing member of FIG. 10 from direction XII.</dd></dl>

The illustrated in Fig. 1 pressure vessel 1 is of a composed eg of tin plate, aluminum, an aluminum alloy, plastic or a composite material of metal and plastic, produced container body 2, an arched inwardly bottom 3 and a hopper 4. In the pressure vessel 1 two part containers 5, 6 are housed, which are made of plastic and are supported with their bottom parts 7, 8 on a piston 9th The piston 9 is acted upon by a propellant gas filling, which fills the space between the piston 9 and the base 3 and by an end 10, for example, is a pressed plug or one-way valve fillable.

In the hopper 4, two circular apertures 11, 12 recessed see FIG. 2, the training is explained in more detail with reference to FIG. 3 and 4.

As 3 and 4 can be seen from Fig., The funnel 4 sets of two Tells judges, an inside Tells Judges 13 one hand, and an exterior side Tells Judges 14 other. The inside Does funnel 13 has a diameter which corresponds approximately to the internal diameter of the cylindrical container body 2 and is designed with a greater wall thickness than the outer-side funnel Does fourteenth The Tells Judge 14 has a larger diameter than the inside Tells Judges 13 and the peripheral region, a groove 15, to which applies from the inside of the inner side Tells Judge. 13 On the periphery, the external side Tells Judges 14 a Bördelpartie 16, by means of which the crimping between the edge of the shell of the container body 2 and the funnel 4 is manufactured. Because only the one that is used in this case the external side Tells Judges 14 of this flanging, can produce them at a lower cost and reliable.

3 and 4 as is apparent from FIG., Are the openings 11, 12 is provided with an edge 17 which lies approximately perpendicular to the former plane and faces away from the inside Does Judges 13. It is essential that the edge is formed from two 17 Tells Judges 13, 14, whereby its wall thickness is the sum of the wall thicknesses of the two Tells Judges 13, 14 and no additional crimping needed.

The edge 17 serves for receiving a valve disc 18, its edge bulge 21 the uncurled edge formed from the Tells Judges 13, 14 17 and shall be crimped with this. This creates a reliable connection between the valve plate 18 and the funnel 4th

The formed as collapsible part containers 5, 6 have an upwardly open nozzle-like bag neck 22, 23, which has a reinforcing bead 24, see Fig. 3 and 4. The edge of the bag neck 22, 23 is under the edge bulge 21 of the valve disc 18 via the edge 17 of the hopper 4 down and then executed, the crimp with the valve disk 18th The bag neck 22, 23 thus forms a reliable seal between the funnel 4 and the valve disc 18th

Each valve plate 18 carries a valve 19, 20, with which a complete financial statements of each sub tank 5, 6 is ensured.

Both the valve head 18 and the valves 19, 20 are standardized elements that are useful thanks to the special design of the hopper 4 without modification.

The valves 19, 20 consist of a tubular valve stem 25 and an elastically deformable, in an opening 27 engaged in the bottom 28 of the valve disk 18 valve body 26. The construction and the function of the valves 19, 20 is known, see for example US-PS 3 662. 926

The substantially planar hopper 4 allows the arrangement of two or more valves 19, 20 depending on the number of sub containers used 5, 6. The funnel 4, because of the use of Tells judges 13, 14 are used even for high pressures, without the wall thicknesses of Tells judges 13, 14 must be excessively strong selected. The Tells Judges 13, 14 form a stable whole, since they are connected in a suitable manner, for example by spot welding or gluing. As can be seen from Figure 4., A cavity 29 is between the two Tells Judges 13, 14 is formed which is provided with passages 30, 31. The cavity 29 may be formed as a venting means, see Fig. 5 and 6, by an elastically resilient tongue 32 is inserted into the cavity 29. The tongue 32 lies down here to the passage 31 of the exterior side Tells Judge 14 and is thus in the closed position in which the interior of the pressure vessel is 1 complete pressure-tight. If the tongue 32 is removed by depressing a pin 33 from the passage 31 and brought into the opening position, see Fig. 6, results in a connection of the interior of the pressure vessel 1 with the outside air. This venting operation is required in each case during the removal of components from the part containers 5, 6, so that the impinged by the propellant charge piston 9 can perform its reciprocating movement for emptying the container part 5, the sixth

When using the pressure vessel 1, the components will be brought together and mixed before being output from the partial containers 5. 6 For merging of the components in which an adapter head 40 is provided, which is attached to the valves 19, 20 of the container part 5, 6 and two supply lines 41, 42 has, which open into a connecting piece 43rd In the connecting piece 43, a mixing pipe (not shown) is screwed in which the components are mixed and brought to the processing site.

The adapter head 40 is constructed in several parts. It consists of a base body 44 and a head 45 together with the connection piece 43rd The head piece 45 is screwed by means of a union nut 46 on the base 44, which further comprises an end plate 49th

For sealing the adapter head 40 to the valves 19, 20 for each feed line 41, 42 a comparatively soft, tapered sealing sleeve 47 is inserted into the base 44th Next is at the transition between the base 44 and the headpiece 45 in the supply lines 41, 42 each provided a dosing 48th With the Dosierhülsen 48 the mixing ratio of the components can be adjusted, which is why they are 45 replaceable after removal of the head piece.

The piston 9 is composed of two parts, a sealing member 50 on the one hand and a cup-shaped piston member 51 on the other. The two parts 50, 51 are made of a plastic and are, for example, connected to one another by gluing or welding. The sealing member 50 comprises in part on the container side a depression 52 into which the bottoms 28 of the part containers 5, 6 protrude and are supported by ribs 53, see Figs. 10 and 12. In the center of the recess 52 a projection 54 is provided in the back recess a projection 56 of the bottom 57 of the piston member 51 protrudes and is centered. Another centering of the piston part 51 is achieved by ribs 58 which define a recess 52 of the opposite recess 59th The two recesses 52, 59 are surrounded by a cylindrical wall 60, 61 comprises a number of annular grooves for receiving sealing rings 62nd In Fig. 10, three sealing rings 62 are provided, however, their number can be changed as needed.

The piston part 51, see FIG. 11 is a relatively thin-walled plastic part whose piston skirt 63 at its free edge has a conical sealing and guiding lip 64.

To remove components from the sub tanks 5, 6 of the adapter head 40 is depressed, whereby the valves 19, 20 open simultaneously and evenly. According to the uniformly applied by the piston 9 on the bottoms 28 of the sub-tank 5, 6 pressure, the components fed into the connecting piece 43, the ratio of the components can be determined by the Dosierhülsen 48th

The ratio of the discharged components can also be achieved by part of containers 5, 6 of different cross-section. In FIG. 2, refer to the two dashed lines, the part of container 5, to 6 same cross section. By Dosierhülsen 48 Although the ratio of the components can be varied to a certain extent. However, if the mixture ratio is large, also need the partial containers 5, 6 have different cross-section. For example, can then be kidney-shaped having a circular cross-section and the other cross-section. With these options, however, the mixing ratio varies in large limits and the viscosity of the components are past.

For depressing the adapter head 40 during the removal of the components serving. In Fig. 8 and 9, actuation means 85 illustrated, 86. Both operating devices comprise a fastening sleeve 87, which is placed on the hopper 4 of the pressure vessel 1 and engages at the flange of the funnel is attached to the mounting sleeve 87, see Fig. 8, an angle lever 88 at the end of a lever arm 89 pivotally mounted, while the other lever arm 90 extends along the pressure vessel 1 and serves for manual operation of the angle lever 88. The one lever arm 89 extends through a passageway 91 of the adapter nose 40. By depressing the bell crank 88, the adapter head 40 is depressed, whereby the valves 19, opened 20th At the end plate 49 of the adapter head 40 also are funnel-sided two pins 33, see Fig. 5 and 6, attached, which bring on depression of the adapter head 40, the tongues 32 in the opening position, whereby the interior of the pressure vessel 1 is vented. In Fig. 8 and 9 of the adapter head 40 is not shown, but of a better overview because only the funnel or valve-side final plate 92.

The actuating device 86, see Fig. 9, has a rotating sleeve 93 which is bolted to the mounting sleeve 87. On the rotary sleeve 93, a control ring 94 also is mounted, which is destroyed upon rotation of the rotary sleeve 93 for opening the valves 19, 20 and thus indicative of the already made use of the pressure vessel first

The pressure vessel 1 described is suitable for any component. It can in this case are not only two but also three, and optionally more components housed in the pressure vessel 1, wherein the funnel surface enables the arrangement of the valves with the aid of standard valve plate. The strength of the hopper 4, through the choice of wall thicknesses of Tells Judges 13, 14 are adapted to the respective requirements. The Tells Judges are prepared expediently made of various materials, as well as the container body and the container bottom 3. Suitable materials include metals, such as tin, aluminum and its alloys, plastics with or without reinforcement or composite materials of metal and plastic. The parts of the adapter 40 are preferably while the actuators 85, 86 are made of plastic or metal, plastic or metal. In addition, the dosing ratio can by different sized container part 5, 6 and adjust Dosierhülsen 48 within wide limits.

It would also be possible to operate the pressure vessel 1 without piston 9th In this case, the passages 30, 31 omitted in the hopper 4 or tabs 32 are left in the closed position.