DE1869389U - SPRAY HEAD FOR THE ATOMIZATION OF A LIQUID CONSUMABLE SUBSTANCE. - Google Patents

Description

Ulm (Danube), December 22nd, 1962

The * UfsprOneiloh submitted unferiogues are, 'I in 21 _{4 t} , ⁹ ** " ^{Abw! Ohü} * S fsf not * p * fl>. • m« recnfiichen _tataressef free of charge !, ■ £££ J ^ f "official files you can ^ n each ™, oh »Na« •• soflv »delivered at the usual prices ⁹ **" * " ^{here also} ^ copies or copies

Oeutschcs Poftntomt Gebh

Sprayon Products, Inc. 2075 East 65tk _Street;

Cleveland 3, Ohio / USA

Spray head for the atomization of a liquid Yerbrauciis-

fabric

The hiring deals with spray arrangements for liquids and especially with those arrangements which are used for spraying paint and other liquids from a suitable container with the aid of a pressurized propellant gas; this propellant gas is then in housed in a separate container.

Ss is known to use a liquefied fuel, e.g. B. dichlorodifluoromethone, to mix with a liquid or other substance to be sprayed. Such spray arrangements are known as aerosols and the cans in which the propellant gas and the the product to be sprayed are housed in the Eegel called "aerosol can". Many that way however, packaged substances have not gained as widespread acceptance as other possible and beneficial ways would have been; this was due to the size of the cans which have been used by the aerosol industry. Bs acts These included cans in the size of 12 and 16 ounces, which are considered to be the most economical in-line use have found. It should also be pointed out with regard to these known spray cans that only one

umpteen product can be sprayed with such a can can. If you want to have several products available for the Aero 1-y spray, separate doses are required for each product required, which must therefore be procured and stored.

For example, aerosol spray cans for paints and other coating materials are often not purchased simply because there is only a small one in the application in question Amount of the material to be sprayed with the propellant gas is required. Furthermore, the great variety of colors falls and the various makes of such materials available, both in terms of manufacture and in weight there is also a limit to the distribution of aerosol cans in which this variety of available colors is packaged to have. Soil deposition with a large number of various aerosol cans has also been found to be disadvantageous affected and cause discomfort on both sides. the wholesalers as well as the small traders. From the same Reasons is the sale of other products, e.g. B. varnishes, enamels, "lubricants, cosmetics, insecticides, coastal snow, medical and pharmaceutical materials, confined in aerosol cans remained.

Aerosol cans, which contain a mixture of propellant gas and a liquid to be sprayed, have also been found in not proven in cases in which the propellant gas and the liquid are not compatible or miscible with one another are or in cases in which the liquid corrodes or otherwise tfeise the metallic container, in which the propellant gas is housed, attacks.

In other cases, ζ. B. in connection with at room temperature Perishable products, it may be desirable to keep these products as low as possible Temperatures - with the exception of the momentary Use - to hold. However, this is not possible with the previously customary Q aerosol cans, since the entire The packing must be brought to almost the unit temperature, so that the propellant gas is necessary for the spraying Pressure generated.

It is therefore the task of the furnace to provide an improved spray arrangement for liquids to indicate which can be produced economically and with which one can be easily removed and replaceable can -? / which contains a liquefied propellant - can be used to optionally produce a Plurality of materials, e.g. B. of paint, enamel, varnish, lubricants, cosmetics, insecticides, artificial snow, medical and pharmaceutical materials as well as similar Terbrauchsstoffe from a separate and also removable container to be sprayed.

The price increase therefore comes from a spray head for atomization a liquid consumable using a container in which a propellant gas is housed, and another container in which the consumable to be atomized is located. The hiring exists in that this spray head is designed as a two-part Eappe, "which on its underside are two adjacent Recesses for receiving the upper edges of the two containers that in your the propellant gas container carrying the first cap part an atomizer valve with a suitable actuator is used that the Second cap part containing consumable container for

Pierced to allow the consumable to be sucked in and that the connecting piece of the two cap parts is one in the direction of the outlet opening of the second-mentioned The cap part contains a bore for the outlet of the propellant gas when the actuator is operated.

This spray arrangement can easily be operated with any conventional aerosol spray can. The spray head carries and thus holds both the aerosol can for the propellant and a separate container for the one to be sprayed Liquid. A mixture of the propellant gas and the one to be sprayed There is therefore no need for liquid in a common container in the arrangement according to the innovation. According to the innovation The spray head is most expediently and most economically made of a plastic material, for example in the Injection molding process, produced in one unit. This spray head allows a sufficient seal against the aerosol can, while at the same time easy operation and removal of the aerosol can is possible. Further Advantages are the attractive appearance and the safety in use of such a spray arrangement. Of the The spray head is sufficiently compact and results in only a relatively short path for the spray gas, which emerges from the spray can and acts on the container containing the liquid to be sprayed target. This short path for the spray gas is achieved in that the bore in the second cap part is outside the middle of the consumable container to be picked up, and z?; ar in the direction of the connecting piece of the two ICapper parts is provided.

The spray head is also not an obstacle for the spray jet, which emerges from the arrangement. It is therefore both on the aerosol can and on the one to be sprayed.

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The liquid-containing container can be easily attached and removed from this. The spray head is still easy to clean after use. As will be explained later, it contains an expansion space, which ensures increased economy when using the propellant gas. Finally can the spray head can be easily handled by the operator using only one hand =

Sin embodiment of the hiring should be based on the drawings explained.

Fig. 1 shows a view, partly in section, a spray- arrangement, which is equipped with the spray head according to the innovation is. In Fig. 2 is a plan view of the arrangement shown in Fig. 1 is shown. Fig. 3 shows in an enlarged Scale shows a section along lines 3-3 of FIG. 2.

In Fig. 4- is a partial detail of a section according to Fig. 3, but on an enlarged scale, reproduced this figure shows the sealing arrangement between the aerosol can and the spray head. In Fig. 5 is a part of a section, along lines 5-5 of FIG Fig.3 and Fig. 6 shows part of a section, similar that in Fig. 3? but on a larger scale from what the outlet opening and the nozzle can be seen.

A complete spray pattern according to inflation is in Fig. 1 of the drawing reproduced; it contains a spray head 1, an aerosol can 2 and a container 4 for the material to be sprayed, e.g. B. the paint to be sprayed.

The container 4 is preferably made of a narrow glass which has a threaded hand 5 (Fig. 3) owns. However, the spray head 1 can also be used in conjunction with containers made of other materials or containers find use with a differently designed upper edge.

The aerosol can 2 consists of a body 7 with cylindrical Side walls 8 and a concave bottom, as can be seen from FIG. For the conclusion of the Can 2 and for the purpose of attaching an atomizing mechanism, the upper end of the body 7 is designed so that it has a cylindrical Eand 11 of smaller diameter than the body 7. This Eand is 11 connected by a conical part 13 (Fig. 3) to the "founding 8". A second, flatter conical edge part 14 extends above, within the wall part 11; it is crimped at its upper end at 16 to allow to form the opening 17 of the can according to FIG. This opening 17 of the can "is closed by a deep-drawn lid 19, which is flanged around the upper edge of the can as indicated by reference numeral 22. This cover extends laterally etiras under the beaded part 16 (reference number 20).

The lid has a bead 23 for greater strength to achieve; it has a cylindrical attachment 25 provided, to which a provided with a through opening Flange 25 is attached, through which the valve mechanism designated 28 extends.

The valve mechanism 28 includes an earpiece 29 with a stepped cylindrical bore 31> the gradation forms

Valve seat 32, which is flattened in relation to the can 2. At the end of the bore 31 there is a spherical valve 34, which with the help of a spring 37 against the "valve seat 32 is pressed. The spring 37 is against a flange 38, which is formed at the inner end 40 of the pipe section 29. The valve 34 is preferably with a Pin 41 provided, Fi / elcher into the interior of the spring 37 extends and thus centers both the valve and the spring. The released propellant gas passes through the open end 42 of ear 29 or through opening 43 which the upper end 44 of the bore 31 intersects. The tube 49 is also provided with an outer, arched one Groove 46 provided, x ^ elche with the opening 43 in connection stands. On the ear 29 is located between the aperture 25 and a suitable flange 50 on the tube 29 a seal 49. The valve mechanism 28 is held by a constriction in the extension piece 25, which is attached immediately below the flange 50 and is denoted by 51.

As has already been described above, a can and a valve arrangement of known construction can be used for the arrangement according to the innovation. The spray head 1 allows the use of such a can of conventional and inexpensive construction. For this reason, the spray head 1 consists of a resin-made body 55 (Fig. 3) ·, which is formed as a unit. As a plastic, for example, polyethylene comes into question.

The Sprühkpfkörper 55 contains a cavity 60 for Receiving the can 2 and another cavity 61, which

is provided with an internal thread 63 for fastening the container 4. A connecting bridge or connecting piece 64 between these two cavities constitutes the "connection. The connecting piece 64 gives the body sufficient strength so that the can 2 as well as the container 4 can be carried by it and that the whole arrangement can be conveniently handled , Line transverse bore 66 extends through the connecting piece 64 in order to guide the propellant gas from the can 2 in the direction of an opening 67 through which the liquid to be sprayed is sucked out of the container 4 by the flow of propellant gas sweeping past 67 is preferably located in a metallic pipe fitting 70 ■> which is pressed into an opening of the Eörpers 55 and which extends into the cavity 61st the liquid to be sprayed is passed through a consisting of preferably plastic Eunststoffmaterial 71 tubes into the tube connecting piece 70th This Tube 71 is of such a length that its free s inde extends close to the bottom of the container. The hole preferably ends in a nozzle 73 'which forms the end of a separate pipe connecting piece 7 ^>. With the help of this nozzle, the propellant gas flow is passed through the opening 67, so that the reduced pressure above this opening in connection with the atmospheric pressure to which the contents of the container 4 is exposed - the latter through the opening 76 shown in FIG causing the atomizing liquid to flow from the container 4 into the flow of propellant gas through which it is atomized and carried away 78 provided.

To attach the spray head 1 to the can 2, it is placed on the upper part of the can so that this can part occupies the cavity 60. The cavity has a cylindrical wall 81, shown in Figures 3 and 5> with a slightly larger diameter and something lower height than they correspond to the wall 11 of the can 2. The interior © of the wall 81 has a plurality of in radial Spaced axially extending ribs 82. The inner surfaces of these paperboards form one Diameter which is slightly less than the diameter of the wall 11 of the can. The hip and wall 81 are something deformable, this results in a tight fit of the Spray head body 55 on the can, even if the can rim 11 is not exactly round or a variable lying within the usual tolerances Diameter.

The cavity 60 is further delimited by a conical wall 83 according to FIGS. 3 and 4, which is complementary and preferably at a short distance from the wall 14 of the can 2 is when the can is clean in the cavity. 60 attached is. The cavity also has an inner flat cylindrical portion 84, as shown according to FIG. 4. This part 84 of the cavity has a cylindrical edge part 86 which forms the flanged part 22 of the cover 19 surrounds and preferably has a small distance therefrom. I'm flatter horizontally -J'andteil 87 adjoins the side wall 86. This wall part 87 has a projection 89, with a stab 90 against which the one provided with an opening The flange 26 of the lid 19 abuts when the can 2 is properly secured in the cavity 60. If those

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The mating surface 90 of the spray head 1 rests neatly on the flange 26, so the spray head and the valve line mechanism are in the correct position relative to one another. Ss to i again highlighted / ground that the vertical orientation of the spray head is determined relative to the can 26 at the Plansch Therefore, when the Paßflache 90 saubei ¹ on the flange is seated! Uurch the abutment of the surface 90, the spray head and are Y-valve mechanism, which is also defined by the flange 26, precisely aligned with one another for easy actuation of the valve, regardless of the degree of bulging of the lid 19 relative to the can 2, which is possible under the pressure in the can.

The cavity 60 goes into a relatively deep, cylindrical Bore 92 through which through the side wall 93 as well the end wall 94 is bounded. S The side wall 93 takes the tube 29 is tightly seated between the flange 26 and the recess 46 in such a way that it can pass therethrough of the propellant gas from the spray head is only possible through the opening provided. The bore 66 opens into the Opening 92, at the level of the recess 46. if the valve is open, the propellant flows into the bore 66 either over the upper end of the Eohres 29 and through the Space between the ^ and 93 and the upper part 95 des Eohres 29 from or through the opening 43 · for this purpose note that the upper part 95 has a slightly smaller one Diameter than the rest of the rope of the Hohres 29

In order to operate the valve 34, the end wall 94 is pierced for a plunger 96 which is guided in this bore. The plunger 96 sits tightly in the pierced one Wall 94 so that it is held when the spray

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head is pulled down from the Sohr 29. Is located the spray head on the can, so the plunger extends

96 in the open inde 42 of the Hohres 29, so knows that heä the valve 34 touches. This plunger has one Length that it extends from the valve 34 into the recess

97 of the spray head upper part extends. The recess 97 forms a hinged tab 98 on the upper part of the spray head, with the aid of which the user of the spray can can act on the plunger 96 without difficulty to move it downward. This downward movement causes the solution of the valve 34 won its seat and thus the discharge of the propellant gas from the can.

The required movement to push the valve 34 of its seat is small - on the order of 1/32 of an inch - so that the arrangement can be carried out easily and without fatigue of the Operator can be operated. The seat between the plunger 96 and the wall of the opening 94 is flush enough to to prevent propellant gas from passing through this opening around the plunger}, however, the 3 eder 37 has a sufficient force to intervene between the To overcome the plunger 96 and the opening and to seal the valve, when the actuation tab 98 is released.

In order to obtain an unobstructed ieg for the propellant gas and the finely distributed liquid in it, the surface is of the body 55 beveled above the container 4, and awar behind the nozzle 73 and the opening 67 · Ss is still indicate that the pipe 70 and the drill 71 » which bring the material to be sprayed to the opening 67, in relation to the center of the container 4 in the direction to box 2 are offset. This construction gives a more stable arrangement and enables the shortening of the

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Intermediate piece 64 compared to an arrangement in which the Pipe 71 coaxial with the container 4 or on the other side would be arranged from the center. This shortening of the intermediate piece 54 causes a loss of energy in the propellant gas "avoided.

Around. the efficiency at which the propellant is sprayed will increase, d. H. the weight of the material which is sprayed with a given amount of propellant gas can, to enlarge, the Hohr 75 is without a measuring opening (metering orifice) and a small expansion chamber accordingly the illustration according to FIG. 6 by mistake. For this purpose, the Eohr 75 consists of a Jb.olilzylindisch.erL Member which is disposed tightly in the outer end of the bore 66 is. The tube has a small insert 103 made of plastic with a measuring opening 104- its inner end, an expansion chamber 105 in the central Part and an end wall 106 in which the opening representing the nozzle 73 is located. That part with the two Openings and the Sspansionskammer 105 gives a more accurate Dimension for the outflowing propellant gas and - as stated above - better economy for use of the propellant gas for the atomization process.

The economy of the proposed arrangement requires that the nozzle 73 and the opening 67 are precisely aligned and adjusted to one another. In the proposed arrangement this can easily be achieved because the bore 66 and the opening into which the Eohr 70 is inserted are precisely defined in the body made of plastic ^ 3 by the shape in which this body 55 has been made . The Eohr 70 and the Eohr 75 are small shaped lathe parts, which with a

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high degree of accuracy. The ear 70 has a horizontally lying shoulder 107, which surrounds the opening 67 so that when assembling the mess it is only necessary to insert the ear 75 into the Insert hole 65 in the prescribed depth and then insert the tube 70 through the opening in the I body 55 so far up until the shoulder 107 of this tube touches the end of the tube 75 - as shown. Through this are the opening 67 and the nozzle 73 against each other in both vertical and horizontal sighting precisely aligned.

For the operation of the arrangement, the can 2, which contains the liquefied propellant gas, is pressed into the opening 60 and a glass 4 containing the material to be atomized, ζ. B. paint, is screwed into the cavity 61. The user then holds the spray assembly in his hand by grasping the can 2 and using his thumb or Index finger, depending on the 7 / unseh, touches the tab 98. The nozzle 73 is then directed at the object or place which is to be sprayed and the user presses on the rag 98 iait his thumb or forefinger to thus depressing the plunger 96 and thereby opening the valve 3 ^ remove against the action of the spring 37 from its seat. The propellant gas thus occurs. This propellant gas arrives along the bore 31 through the end of the Eohres 29 or the opening 43 and finally along the bore 66, expands, coming through the opening 104, in the expansion chamber 105 and exits the nozzle 73 at high speed. This .ötrom. of the propellant gas it happens then the opening- 67? it being the color or the other Material that is to be sprayed picks up and atomizes and then seals it onto the sprayed

Item carries or this material - if desired atomized in the air.

The iaifbau of the spray head 1 is done in such a way that the .Dose 2 is in sealed, but quickly removable engagement with him. The spray head can be economical can be manufactured as a unit to be manufactured from plastic material, with the exception of the tube described.

The price increase was previously based on an aerosol can described with a "valve that is particularly recommended for the present purpose. Ss, however, should be noted pointed out that a spray head according to the hiring also in connection with differently designed spray cans and other valve mechanisms can be used. However, the proposed valve arrangement and the can arrangement specified in the exemplary embodiment are special advantageous because of the small size of this arrangement and because of the possibility of retrofitting the spray head.

Claims (24)

KA. 824414 * 24.1262 U t ζ a η s ρ r ü c h e 1. Spray head for the atomization of a liquid consumable, using a container in which a propellant gas is housed and another container, in which the consumable to be atomized is located, characterized in that it is a zFieiteilige cap (1) is formed, which on its underside two adjacent recesses (60, 61) for receiving the upper edges of the two containers (2, 4) has that in the carrying the propellant gas container (2) the first cap part is a nebulizer valve with a suitable actuator that the consumable container (4) containing a second cap part to enable the consumable to be sucked in is pierced and that the connecting piece (64) of the two cap parts is one in sight of the outlet opening the second-mentioned cap part extending bore (66) for the escape of the propellant gas during operation of the actuator (98) contains. 2. Spray head according to claim 1, characterized in that the second cap part with a fine internal thread for screwing of the upper edge (79) of the consumable container (4) is provided. 3. Spray head according to claim 1 and 2, characterized in that that the second cap part has a bore (66) of the connecting piece (64) crossing the bore for the outlet of the consumable contains. 16 - - 16 - 4. Spray head according to claim 1 'to 3> characterized in that the "two bores in the intermediate piece (64-) and the second cap part are perpendicular to each other. 5 · Spray head according to claim 1 to 4, characterized in that that the bore in the second cap part outside the center of the cavity (61) in sight of the connector (64) is attached. 6. Spray head according to claim 1 to 5 ·> characterized in that the double cap part contains a further bore (76) for maintaining the atmospheric pressure in the U interior of the container (4). 7 · Spray head according to claim 1 to 6, characterized in that that a tube (70) is inserted into the bore of the second cap part in such a way that its outlet opening lies close to and in the direction of the outlet opening from the connecting tube (66). 8. Spray head according to claim 7? characterized in that a suction tube (71), preferably made of plastic material, is attached to the inner end of the tube (70) is, which has such a length that its lower end reaches close to the bottom of the vessel (4). 9 · Spray head according to claims 1 to 8, characterized in that that in the line running in the direction of the outlet opening of the second-mentioned cap part, a piece of pipe (75) is inserted, which has an inlet opening (104), an expansion space (1o5) and an outlet nozzle (73) contains. - 17 - 10. Spray head after. Claim 1 to 9> characterized in that the one protruding from the consumable container Sampling tube (70) is provided with a flange (10) which is attached at such a height that when supported of the end of the tube (75) on the flange the two Outlet openings (73 and 67) are aligned to achieve optimal atomization. 11. Spray head according to claim 10, characterized in that the tube (75) as a cavity with an inlet bore (104), an outlet nozzle (73) and one in between lying expansion chamber (105) is formed. 12. Spray head according to claim 1 to 11, characterized in that that in the inner end of the Eohres (75) a sleeve (103) made of plastic is inserted. 13. Spray head according to claim 1 to 12, characterized in that that the two ears (70 and 75) are made on a shape lathe. 14-. Spray head according to Claims 1 to 13, characterized in that that the recess of the first cap part has a cross section corresponding to the upper part of the spray can (2) owns. 15 · Spray head according to claim 14, characterized in that this cross section has a cylindrical section (81) has, the diameter of which is selected to be larger than the diameter of the corresponding part of the can (2) corresponds and that this cylindrical part (81) inwardly extending axially extending ribs (82) - 18 - has, the inner diameter of which is chosen to be somewhat smaller is than the outside diameter of the corresponding Can part corresponds. 16. Spray head according to claim 1 to 15? characterized, that it is made of a sufficiently elastic plastic. 17 · Spray head according to claims 1 to 16, characterized in that the first cap part is coaxial with the recess (60) running bore (92) for receiving the valve carrier (29) and a B - = - and (89) with a contact surface (90) has for this valve support (29). 18. Spray head according to claim 1 to 17, characterized in that that the connecting bore (66) introduced into the intermediate piece (64-) opens into this bore (92). 19- spray head according to claim 1 to 18, characterized in that that the bore (92) below the transverse bore (66) has an inner diameter in which the valve carrier (29) receives a tight fit and that this bore (92) above the transverse bore (66) has a slightly larger, has an inner diameter that allows for a passage gap. 20. Spray head according to claim 1 to 19 »characterized in that the bores in the valve body (29) (66) and (44) connecting through hole (45) drilled is. - 19 - 21. Spray head according to claim 1 to 20, characterized in that that the valve body (29) as a two-part hollow body is formed, the lower part of which the valve (34-) and one the "valve (34) against the valve seat contains a pressing spring (37) and the upper part of which has a through-hole (44-) for a plunger (96) to be operated from the actuating head (98). 22. .Spray head according to claim 1 to 21, characterized in that that the actuating head is formed by an incision (97) perpendicular to the axial direction of the valve body (29) is in such a way that a flap remains which, when pressed down, pushes the plunger (96) against the spring tension (37) moves. 23 · Spray head according to claim 1 to 22, characterized in that that the valve body (29) has an annular flange (50) which on the one hand as a support on an ini The annular bead (51) provided for the socket end cover (19) and on the other hand a seal (49) for sealing of the valve body (29) is pressed against the can lid and thus against the can. 24. Spray head according to claim 1 to 23, characterized in that the plunger (96) is designed as a wire pin and so slidably mounted in the central opening of the Iiopfes is that he by pressing down the tab (98) in the axial direction; is movable.