DE430032C - Closing device for bottles for receiving compressed or liquefied gases - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
9 JUN11926

REICH'S PATENT OFFICE

PATENT LETTERING

- M 430032 CLASS 17 g GROUP

(S 60839 I \ i7g)

Patented in the German Empire on September 14, 1922.

Bottles for holding compressed or liquefied gases have become known, which, as Fig. 1 shows, through a plug 3 can be closed, which is screwed over the open end of the bottle and under the action of a force directed from the outside inwards, a dense one Forms closure with the bottle 1, usually a disc 4 made of plastic Material is inserted between the stopper 3 and the edge of the bottle.

In the embodiment illustrated in Fig. 1, the closure consists of a single piece, however, it can be beneficial to it for two different reasons to be carried out in two parts. The first reason is that it is the open end the bottle must be reduced to a very small diameter to accommodate the termination point to a minimum, as well as the force exerted on the plug 3 in order to achieve the desired seal must be exercised to reduce it as much as possible. The narrowing of the bottle is conditional a tedious and therefore costly job to be carried out with the utmost care. The second reason is to be seen in that the open end of the bottle, which has been reduced in diameter, is easily clogged by foreign bodies (rust, etc.), which are inside the bottle and which are impossible to get out. The device according to Fig. 1 can therefore, as illustrated in Fig. 2, can be modified according to which the main part the bottle through the actual bottle part ι and through a tightly screwed on Piece 9 is formed. The free end is narrowed, i. H. is the inside diameter reduced, and this reduced diameter part is provided with an external thread, to take up the plug 3. In this embodiment, the two abuses criticized above are eliminated, as here a substantial reduction in the diameter of the bottle itself is out of the question and in the event of a clog of the channel by unscrewing the part 9 which may be in the bottle any foreign bodies located there can be removed.

However, the two well-known bottles just discussed have two more ski-weighting ones Disadvantage.

First, the plug 3 in the case in which the same plastic Disc 4 is intended to be used for repeated fillings of the bottle, d. H. when emptying the contents not by breaking through the closure member, but by unscrewing of the plug 3 should only be screwed on with moderate pressure. It follows that the plug 3 through Shocks can be easily resolved. In addition, the plug usually has to when using the bottles

be screwed. Due to the fact that there is no stop device, the plug 3 can be completely detached from the bottle and lost, so that the The contents of the bottle are exposed to the action of external agents.

It must also be used for filling and emptying a bottle in a pressurized one Container a tight connection between the bottle and the pressurized one Container are manufactured. This sealing point must be on the neck of the bottle, which is why it is necessary has a relatively large diameter, and in order to achieve a tight seal, one in relation to his Dimensions upright pressure conditional. This connection point is also proportionate far from the end of the bottle entao, the latter for the introduction of the bottles in loading and use devices and is also inconvenient to pull it out, especially if these operations are to be carried out automatically. Finally, the seal must still be made on a rounded surface that is suitable for this purpose only very bad.

The invention now relates to a particular closure device for bottles for receiving compressed or liquefied gases through which the above-mentioned Disadvantages are avoided and are used in conjunction with one or the other type of the bottles described above can.

The new device consists essentially of an internal thread the neck of the bottle screwed-on sleeve, in which a sufficient seal is achieved by the thread, wherein the free end of this sleeve for making a seal between the bottle and can serve the pressurized container. This free end serves as a stop on the inside for a closure plug of the bottle and thus prevents its complete Unscrewing.

Various embodiments of the locking device of the invention are shown in the drawings, for example, and it is:

Fig. 3 with a longitudinal section through a bottle made from a single piece a locking device according to the invention,

Fig. 4 is a longitudinal section of a modified embodiment,

Fig. 5 is a longitudinal section of a second form of modification,

Fig. 6 is a longitudinal section of one of two Parts existing bottle with a closure according to the invention,

Fig. 7 is a longitudinal section of a modified embodiment of such a two-part Bottle, and

Fig. 8 is a longitudinal section through a second modified embodiment of a bottle according to Fig. 6.

The bottle 1 illustrated in Figure 3 carries an internally threaded one Sleeve 6 screwed onto a corresponding thread provided on the neck of the bottle will. The two parts are screwed together very tightly, so that the sleeve 6 with the bottle at the point 7 one forms annular seal, with between the two parts on the annular If desired, a disc made of plastic material can be arranged on the wing 7 can. The free end of the sleeve 6 is significantly smaller than that in diameter Outer diameter of the plug 3, such that it is not completely unscrewed can be. The threads of the sleeve 6 and the plug 3 can be the same or opposite be directed.

When filling and emptying of the bottle a dense \ ^r genetic binding site between this and the container under pressure through the end of the sleeve 6 obtained either directly or with the interposition of a stuffing box, which is placed on the cylindrical part 8 of the sleeve. 6 In both cases, the seal is achieved at a point that is relatively weak in diameter and at or near the end of the bottle.

As soon as the bottle has been filled and closed by the stopper 3, the Seal at 7 between the sleeve 6 and the bottle body until the moment of emptying superfluous. An imperfect seal at this point has no influence on the tightness of the bottle itself results in only a small loss of gas during filling and emptying.

In the embodiment illustrated in Fig. 4, the sealing point between a.10 see the sleeve 6 and the bottle 1 instead of at the end of the sleeve through a shoulder approach 12 achieved, which is provided at the end of the thread and against a corresponding Shoulder base of the bottle supports.

In the embodiment illustrated in Fig. 5, this is for screwing the Plug 3 required thread superfluous, rather the plug is here in a Internal thread of the sleeve 6 screwed in. According to Fig. 5, this thread forms the extension of the thread, which goes with the

of the bottle cooperates, however, an internal thread of Find smaller diameter use, it is then made possible this Thread to give a different pitch and opposite direction.

In Fig. 6 an embodiment of the invention is shown in which the bottle itself has been made from two parts,

ίο as indicated in Fig. 2. the Sleeve 6 here not only has the peculiar features of those according to Fig. 5, but through this sleeve the two parts ι and 9 of the bottle are connected to one another. For this purpose, the sleeve 6 is equipped with two internal threads of different sizes larger diameter thread with the one provided on part 1 of the bottle

ao works together and the thread, which is smaller in diameter, is used to screw on the plug 3. An annular shoulder extension 12 is provided between the two threads, through which, when the sleeve 6 is screwed onto the bottle part 1, the part 9 is pressed against the part 1, usually with the interposition of a seal 11 made of plastic material. In this way, a tight connection of the two parts 1 and 9, which together form the bottle itself, is achieved. The annular sealing point 12 between the sleeve 6 and the part 9 corresponds to the sealing point 12 according to Fig. 4. It is sufficient that an approximate seal takes place here, and for this reason the layer of sealing material can optionally be omitted here.

Fig. 7 shows a modified embodiment of the bottle according to Fig. 6 according to which plug 3 is screwed onto part 9 instead of into sleeve 6.

In the embodiments according to FIGS. 3 to 7, the seal is at the open End of the bottle achieved by a small disc 4 made of more or less plastic material, which is usually made of There is hard rubber and is attached in the plug 3.

Fig. 8 shows a modified embodiment of the device according to Fig. 6, according to which the part 9 of the bottle is made of hard rubber or the like instead of metal plastic material has been made, while the plug 3 consists entirely of metal. The individual parts are thus here in comparison to the previously described embodiments from others Materials made, and a disk 4 made of hard rubber or similar material is in this embodiment not mandatory. In this modified embodiment, a part can be omitted be, and also the disc 11 made of plastic material (Fig. 6) and optionally the disc of plastic material provided at 12 (Fig. 6) has been omitted will.

In all of the illustrated embodiments, the gas must pass through During the filling and emptying through recesses, holes, notches o. The like. Care are taken in the Plugs 3 are provided in a manner known per se.

Claims (4)

Patent Claims: 1. Closure device for bottles to accommodate compressed or liquefied Gases, characterized in that one screwed onto the neck of the bottle with an internally threaded sleeve (6) provides a seal between a contact surface of the bottle and such a the sleeve is made, and that the free end of this sleeve for connection between the bottle and a Filling container serves, while the inside of the sleeve serves as a stop for a go against the bottle end screwable stopper (3) is used and thus its complete unscrewing when Opening prevented. 2. Apparatus according to claim 1, characterized in that the closure plug (3) the bottle is screwed into the interior of the sleeve (6). 3. Apparatus according to claim 1 and 2, for bottles with a separate mouthpiece Is to be used, characterized in that the mouthpiece (9) of the bottle through the sleeve (6) on the latter is pressed on. 4. Apparatus according to claim 1 and 3, characterized in that the mouthpiece (9) the bottle is made of plastic material, for example hard rubber, and the stopper is completely is made of metal. 1 sheet of drawings.