DE7606823U1 - SEALING DEVICE FOR CLOSURES OF VESSELS, IN PARTICULAR WASHING AND WULFFBOTTLES - Google Patents

Description

Helmut Eich

5-4-61 Buchholz / Ww.

Asbacher Str. 20 IG / si.

3. Harz 1976

Sealing device for closures of vessels, in particular Washer and Wulffsehe bottles.

The innovation relates to a sealing device for closures of vessels, in particular washing and Wulff bottles for chemical laboratory technology using a 0-iü.ng seal as well as for! screw caps.

Screw-neck bottles from Schott, washing bottles and Wulff bottles have long been known for chemical laboratory technology. Here, two or three glass tubes are passed through the closure into the interior of the bottle, for the respective Serve external connection or to accommodate a glass tap. It is also known to use a rubber stopper as a closure or cap to use. But if you use rubber that is sufficiently chemically resistant, the seal on the respective hole

circumference for the glass tube is not sufficient, since such a work-j

ι fabric cannot hug itself closely enough. But if you use ground joint connections, the bottle caps are much more expensive or not all glass tubes are on them _;

Way to seal. Threaded connections are also known!

in those, however, the above sealing problems as well

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- 2 occur.

The applicant has proposed, albeit in a different context, using an O-shaped sealing ring made of tetraflourethylene To seal vessel parts to one another, which meet at the front. An outer or inner rubber sleeve can also be used here Find use. The frontal sealing concerns a different problem in which only one overall passage for a liquid or a gas. This is not about creating an improved sealing device, in which a plurality of glass tubes or the like. Are passed through the closure.

In another context, e.g. B. for screw connections, for I ¹ I ans chans at ζ pieces, EELEHMEYER-KoIb s and connecting pieces O-shaped sealing rings made of silicone rubber are known. The applicant has also already proposed between. O-shaped sealing rings made of tetraflour polyethylene must be provided for the upper and lower part of the vessel halves and placed in a groove (DT GM 73 30 74-2). But even with this proposal by the applicant, even if a groove is used, it is a matter of an outer circumferential seal with a single overall passage to a plurality of connections located further away.

The hiring is based on the task of closures from Wulffach-type vessels and washing bottles

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increase sealing with simple and cost-saving means.

For this purpose, it is proposed according to the furnace that a, in particular made of polytetrafluoroethylene, deformable. but also chemically resistant, arranged in the closure cap the sealing plate a plurality of through holes door glass tubes, in that each glass tube has a groove in the sealing plate is present sovrie each glass tube by a groove inserted in _o e sealing ring, in particular O-ring made of silicone Gumit.i or Like. Is sealed individually.

This is the first time that this concept of spatial form is used. an outer ring seal passed and a plurality of sealing rings in a suitable manner brought into the interior of the closure. A sealing plate known per se is suitably adapted for this purpose and provided with grooves arranged inwards at predetermined points. A better adapted individual seal is created for each glass tube, whereby one is practically independent of the material of the actual closure cap. In addition, for the sealing plate as such, with its associated material (PTFE), the chemical resistance is fully utilized on the one hand, but on the other hand the relatively softer, but now protected silicone rubber, the vacuum-tight closure of each individual glass tube, is better secured. '·

i represents or better functionally distributed.

An advantageous embodiment of the three-dimensional shape provides that

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Sealing plate and with two parts of a horizontal continuous Trennfu ?, ^- e is formed, and the respective grooves or groove portions are formed in two areas of the partial plates.

An embodiment of the innovation is shown in the drawing and is explained in more detail below. 1 and 2 respectively show, in side view, partially in section, a washing machine or, a Wulffsehe bottle with a cap-like closure, accordingly continuous glass tubes as well as the screw thread on the bottle neck.

In a wash bottle 1 or a "Woulfsehen" bottle 2, the regularly consists of glass, the screw thread 3, 4 serving for sealing is present on the bottle neck, which with the serrated indicated mating thread 5 or 6 of the associated Screw cap 7 or 8 comes into engagement. To this extent, these are known components.

The sealing plate 9 according to the invention is located as a 1 set under the bottom 10 of the cap 7 or 8 and consists in particular of PTFE (polytetrafluoroethylene) or an equivalent, nor; deformable material. In the exemplary embodiment, the plate is shown in two parts by making a parting line 11, that is to say consisting of plate halves 12, 15 through this sealing plate Now the glass tubes 14, 15 and 14, 15j 16 in Fig.2 ί carried out, for this purpose openings are in the sealing plate or holes 17 per glass tube are available. Are awei Teilplatteii

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present, the passage is of course in each of the Partial panels.

In the sealing plate 9 or its sub-plates there is now a circumferential groove 18 which runs around in the plane of the sealing plate in such a way that an O-ring |

made of silicone rubber or the like. 19 is added so that it is on its inner circumference against the outer circumference; of the respective glass tube 14 or 15 or 16 presses and the contents of the bottle here closes vacuum-tight.

The shape of the invention is not an arrangement of two. or three glass tubes, hats or through holes in the sealing plate, deviations result depending on the Individual case and per vessel. Instead of silicone rubber, an equivalent, well-sealing and deformable material can be used can also be the sealing ring ;; in cross section of the circular shape differ z. B. be oval. In individual cases, for excreme Requirements, two sealing plates according to i'ig. 1 or 2 be arranged vertically one below the other with a certain distance, possibly so that in the spacing space ^ η certain other material or spacers are housed. It is also within the scope of the spatial shape, in individual cases the The seal also needs to be attached outside the cap. Furthermore, the sealing ring does not necessarily have to be supported on the cap base. The invention can also be modified so that circumferential support edges or vertical support webs in the hollow space

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Engage between thread 3, 5 and the glass tube at 14, 15, 16 "or are introduced, so that there the arrangement of Diohtplattej, Grooves and O-rings per glass tube becomes effective.

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Claims (2)

March 3, 1976 IG / si.j Helmut Eich SCHUTZANSPRÜOHE 1. Sealing device for closures of vessels, in particular Washer and Wulff bottles for chemical laboratory technology using a circumferential or O-ring seal as well as for screw closures, characterized in that at least one, consisting in particular of polytetrafluorethylene, but deformable and chemically resistant, in or under the cap (7, 8, 10) arranged sealing \ plate (9, 11 j 12) has a plurality of through holes (17) 'for respective glass tubes (14, 15, 16) has that ge glass tube has a groove (18) in the sealing plate (9) and each glass tube by a circumferential sealing ring inserted in a groove, in particular O-ring (19) »made of silicone rubber or the like ., is individually sealed. 2. Device according to claim 1, characterized in that the sealing plate (9) is constructed in several parts, in particular in two parts is. 7606823 09/16/76 2. Device according to claim 1 or 2, characterized in that ι that the sealing plates (9, 11, 12) with a vertical distance? .u- ' arranged one to the other and each with associated openings ^: (17) and grooves (18) for the respective circumferential seals I (19) are provided. ;. j ; i I 4. Apparatus according to claim 1, characterized in that the I I sealing plate or sealing plates (9, 11, 12) immediately below I the cap base (10) are arranged. p j ΐ! \ j 5 Sealing device according to one of the preceding claims, ; ^{! i} characterized in that the sealing plate or an additional sealing plate is arranged in the spacing space between screw thread (5) and glass tubes (14, 15, 16). 7606823 09/16/76