DE1579738A1 - Trocar valve holder for containers containing liquefied gas with a pierceable wall - Google Patents

Description

'· ■■■ ". ■ · PATENTANWÄLTE

DIPL.-ING. H. LEINWEBER DIPL.-ING. H.

• oatidwdc account: steering account: Telephone T «t.-Adr.

MOndwn 22048 Dr.idn.r Bank AG. MtMiMa (IIII) MW W Ulnpat MündiM

MQndtwi 2, -MarlMplatz, account no. 927W ""

New phone number 261989

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October 25, 1965

SOCIETE INDUSTEIEItLB POUR LA DIFFUSION, D ¹ EQUIPE] VMT ET DE MATESIEI "3IDEMAT" Soc.an. Paris, France

Trocar valve holder for containers containing liquefied gas with a pierceable wall

The invention relates to means for holding interchangeable trocar devices for piercing are determined by smooth and thin walls of containers, which liquid. Contain gas and are used in particular in portable devices such as cookers, radiators, lighting fixtures, blowtorches or the like, which are used with liquefied Natural gas from a lost package or "cartridge" small capacity can be fed

Conventionally, in order to produce the connection between the _f in the cartridge contained gas with the apparatus used is this a näher- using by screws

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brought trocars pierced, which in one at the to be pierced wall under seal arranged head is installed. This tap head is set in a tap connected to the device used

It is important to ensure a perfect seal between the cartridge and the tapping head, but the known devices for fastening the tapping head on the cartridge, which are satisfactory in this respect, have bulky, massive mountings with complicated locking systems, which are complex and not very practical. There are other, simpler devices, but they have the major disadvantage that they do not offer absolute security for the following two reasons; _;:

1. thereby _f that the piercing during commissioning due to the possible poor start,. The cartridge can be tidied up in its Trökar holder before it is completely sealed. _E

2. Disconnect the fact that the sealed Anzapfkopfs DIE during use due dec ^ "* the lack of a lock on the cartridge, the user sen Kopf aua accidentally pierced by the ■■ '■■ wall may (especially if the return - "draw this head inseparable from that of that

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Piercing-effecting trocar), whereby it turns out that the cartridge is still (contains ras without any quick and effective means can be attached to seal this leak so that the tap head again is brought to its place correctly

The object of the invention consists in a very • simple and therefore not very expensive and in particular practical device through which an effective locking of the inzapfkopfß auf.der cartridge is achieved and through which all incorrect handling by the user is prevented both during the arrangement and in the course of the usage.

The irfindungegememe device consists of one Bracket for dtn tapping copies, essentially the following Characteristics

• bent in a pair · brackets, di · designed so that

container they include the old "liquid" gas, whereby

di ··· Btiftl are articulated to one another on one side of the cartridge (for example on an essentially concave base)

One of them points to the end that is meant to be is to lie against the other side of the container,

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a.n tapping head, which is suitable for being under, Intermediate arrangement of a sealing connection to apply to the upper side of the container and to rest on it to support?

furthermore a head in which a cannula provided with a vertical bore is arranged for the passage of gas On top of this cannula is a trocar-fitted socket so arranged under seal "that this into the wall the container can be pressed in j

Means of coupling and clamping to the head with the To releasably couple the end of the other bracket in such a way that the holder closes around the gas container »whereby these two parts approach one another in such a way that the sealing connection of the tapping head is in close contact with the wall of the gas container;

- Finally, locking means to keep these clamping means in the clamping position, the actuation of these locking means preferably with the Einachraubeti the cannula provided with the trocar is connected at the end of the piercing of the wall.

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The means for coupling and clamping the tapping head with the clamping bracket preferably consist of one at the head, articulated lever or a tab arranged in this way is that it comes to rest below the bracket and folds over to the upper side of the head, whereby the inner side of the lever tab can be designed as a skirt slope to the bracket in the course of this folding to approach the head. Firmly connected to the cannula, which is lengthened in its upper part by a stopcock Locking means can be provided to prevent the folding of the lever on the head when screwing in the piercing tip to facilitate and block ».

• More details, advantages and features of the Invention emerge from the following description. \ In the drawing, the invention is shown, for example, vividly, namely to show

1 shows a front view of a container provided with a holder in the normal (brewing position ^;

Fig. 2 is a plan view corresponding to Fig. 1,.

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Figo 3 is a view similar to Fig. 1, the shows the device during assembly on the container,

FIG. 4 is a sectional view corresponding to FIG.

It
Fig. 5a is a sectional view of a detail of the

Trocar tapping head in the position of use

of Fig. 1,

5b shows a similar view, but in the position similar to FIGS. 5 and 4

6 is a perspective view of the joint " connection between the two brackets",

As shown in Fig. 1, 2 and 5 in the normal position of use, the holder consists of a pair of curved brackets 1 and 2, which are designed so that each of its two legs firmly enclose and hold a cartridge 4 with liquid gas. They are in the cavity formed by the concave bottom 4a of the cartridge by a web 3 "which is coupled at its ends intended for connection below the cartridge 4". _: -; : V other articulated ·;

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The base 5 of a tapping head is pivotably articulated on the upper transverse leg 1a of the bracket 1 The underside of this base is curved so that it fits tightly against the curve of the cartridge 4 · The upper side of the base forms a cylindrical shaft 6, the is provided with an external thread and has a central bore 7 which penetrates the base · A flat arched one Shoulder 8 with one for receiving the thigh 2a the bracket 2 certain recess 9 is at the free end of the base 5. At this free end there is also an axis 10 bent over at 11a on a flat arched axis Articulated tab 11, both of which is shown in FIG Take a position as well as on a second, on the. upper side of the base 5 on both sides of the shaft 6 provided shoulder 5a can rest. .. ■ '■.

On the threaded shaft 6 can by means of a sleeve 12 (Fig. 4) a cock 13 are screwed, which at its lower end a tubular Trocar 14, which is attached to a central cannula 1β at the end of a socket fixed by being screwed on firmly 15 is attached

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The sleeve 15, which the vertical movement of the tap 13 in its at * - accompanies and unscrewing (Figo 5a, 5b) _t 7 · A rotates in the bore in each case on the walls, arranged in the side surface of the sleeve 15 recess 18 for engaging Candidate Pin 17 limits the path of the tap upwards and downwards «

The seal between the bulge of the cartridge 4 and the base 5 and between the base 5 and the Trocar valve 13, 14 »15 is secured by a single seal 19 ensured that in a groove 20 of the bore 7 engages and protrudes downward from the base 5; the top The end of the latter is at the end of the upward movement - the socket 15 is always in contact with it (Pig »5b) ·

Finally, the limitation of the downward « Movement (Fig. 5t) of the cock 13 is set such that the trocar 14 the wall 4b ± m center of the curvature of the Cartridge 4 pierces * Of course the upper one is Part of the cock 13 with a device not shown tied together. ;

When the device is used, the tap 13 unscrewed in such a way that it is at the end of the waiting room * Movement is and that the trocar 14 does not have the

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The underside of the base 5 protrudes (Pig · 5b). Thereupon the brackets 1 and 2 of the device according to the invention are bent apart in a fan shape, as in FIG. 3 illustrated, and the cartridge 4 is inserted into the .Halterung opened in this way »

Thereupon the stirrups are again around the bridge 3 pivoted, making the holder around the cartridge is closed »In the course of the closing movement, the

Tab 11 below the upper leg 2a of the bracket Z to rest.Then this bracket is folded around its pivot axis 10 in the direction of the arrow F (Fig. 3) guided to the left and is firmly in the recess 9 of the base 5 * In the closed position, the tab H is on the upper side 5a of the base 5, as can be seen in FIGS pressed onto the cartridge 4 * whereby the seal 19 on the upper curve of the cartridge 4 is compressed. The lower part of the cock 13 can then be screwed on in order to drive the trocar 14 into the wall of the cartridge 4 and to pierce it

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It should be noted that by screwing the tap onto the base, the locking of the Holding is effected because the sleeve 12 of the tap 13 the inner edges of the two sections 11b and 11c the tab 11, which extend on both sides of the shaft 6 (Fig. 2) covers and rests on them. The tab 11 is thereby firmly attached to the base 5 in System held and the bracket is firmly locked, as soon as the cock 13 with the trocar is razed to pierce the wall of the cartridge.

In addition, the distance between the sections 11b and 11c of the tab is greater than the outer diameter of the shaft 6, but smaller than the outer diameter knife of the sleeve 12, as a result, the tab 11 comes during of folding in the direction of arrow F on the sleeve 12 to rest when the cock 13 is too far in the direction of the Base 5 is screwed (i.e. if the trocar 14 protruding too far below the base the cartridge before the Detecting and locking could pierce) * Actually are the position of the sleeve 12 to the trocar 14 and the Length of the tab 11 dimensioned so that the latter is below -de? -. Sleeve 12 cannot pivot at will if the

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Trocar 14 protrudes under the underside of the base 5

The arrangement of the inventive device, the cartridge 4 is fully recorded before piercing its wall through the trocar 14 and is centered, wherein the piercing occurs inevitably at the desired location * In addition, as described above, the closing of the bracket under the effect of the folding over the tab 11 only take place when the trocar does not project below the underside of the base 5 · as a result, can not take place .the piercing the cartridge "before the seal 19 rests under complete seal on the cartridge.

Conversely, the holder can only be opened when the tap 13 is raised sufficiently is »In this way, accidents that can occur due to untimely opening of the holder, if the cartridge still contains a considerable amount of gas, largely avoided. To make this opening the stopcock must first be unscrewed until the trocar has been pulled out of the cartridge and pulled into the base. However, in the course of this operation it is easily possible to warn the user in the event that

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that the cartridge should contain fuel gas It "is sufficient a small passage having two sections to provide a at 21 in the bushing 15 'the other at 22 in the base 5 * In the course of the ex · * - Screws _t of the cock 13 join the two Sections to lie one behind the other for a short moment and cause a short whistle in the presence of residual gas, which attracts the attention of the user, who can then interrupt the unscrewing before the tab 11 emerges from under the sleeve 12 and close the holder again. '

The two subsections 21 and 22 are advantages * · · ". wisely arranged at such a height that they come to lie one behind the other while the cock is still so far is tight enough that the tab 11 under the sleeve 12 cannot open *.

The invention is not limited to the above The specified embodiment is limited · In particular, can the sealing of the device can be improved by the single seal 19 by several individual seals is completed, of which at least one of the seal between the cartridge 4 and the base 5 causes.

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while at least one other seal between the Base 5 and the socket 15 is arranged «In addition, the shape of the hinge bracket can be numerous Experienced modifications, always on the condition that it holds the cartridge firmly.

For example, the bracket 1 or 2 can be made up of several there are hingedly connected Eetten links »

Likewise, although the locking of the tab 11 by unscrewing the cock 13 can be a considerable " Security measure represents one of this entirely independent classic locking system must be provided *

Finally, the tap head can with its bracket firmly connected or simply hooked into it instead of being hinged to it »

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Claims (1)

Patent claims: ^/ 1λ holder with tap head for exchangeable thin-walled containers that contain liquid gas, for example, characterized by a pair of curved brackets (1, 2) which encompass the container (4), the ends of these brackets on one side of the container, for example on the essentially concave bottom (4a), are hingedly connected to one another and wherein one of the brackets (1) at its other end (1a) and on the other side of the container (4) has a tapping head which attaches itself with the interposition of a seal (19) the upper side (4b) of the container and in which a cannula (16) provided with a vertical bore (7) intended for the passage of gas is arranged, onto the one with a trocar (14) socket provided for piercing the container wall (15) is applied under seal, also by clamping. Means (11) for releasably coupling the head to the end (2a) of the other bracket (2) and by locking means (12) for holding the inhibiting means (11) in a clamped position, wherein the locking movement preferably with the screw-in screw movement of the cannula (16) provided with the trocar (14) upon completion of the piercing of the wall (4b). BATH 009832/0356 - ■ 15 - 2. Holder according to claim 1, characterized in that the clamping means preferably aas one lever linked to the tapping head or a bracket (11) exist ,, which reaches through below the bracket (2) and folds over to the upper side of the head, whereby for the Approaching the bracket to the head when folding the Inside of the tab (11) designed as a cam pitch 5. bracket naoh claim 2, characterized 12 indicates * that the locks! Ttel dasu are stirnt, the lever (11) folded over towards the dispensing head To block.. 4. Holder according to one of claims 1 to 3, characterized in that the Trokarkaniil · (16) free is rotatably arranged in a smooth bore (7) of the base (5) of the Aniapfkopfei, which is at the upper part of the Bore has a shank (6) which has a thread on the outside to allow it to be turned for piercing. 5. Holder according to claims 3 and 4, characterized characterized in that the locking means by the End face of a sleeve (12) applied to the trocar cannula (16). BATH 009832/0356 6. Holder according to one of claims 1 to 5, characterized in that a single seal (19) at the lower end of the guide (7) is provided -the on the one hand in extension of the guide (7) gate post and on the other hand, rests against the trocar cannula (16). 009832/0356 _BAD rofci