DE102014012171B4 - Device for expressing viscous masses from containers - Google Patents

Abstract

Device (1) for pressing viscous masses (4.5) from a container (4) comprising a first unilaterally closed tube (2) with an internal thread (2.1) extending from a closed end (2.5) to an open end (2.6 ), wherein one at the closed end (2.5) arranged centrally, in the direction of the central axis (L) extending piston rod (2.2) and a vertical to the piston rod (2.2) arranged piston (2.3), whereby a piston (2.4) displaceable in product a protruding, to the outlet device (4.4) complementary spur (2.4.1) is arranged on the product side underside of the displaceable piston (2.4), wherein the outlet device (4.4) for the exiting viscous mass (4.5.1) is designed as a sealing lip (4.10), which is closable by means of a cap (6), - a second unilaterally open tube (3) with an internal thread (2.1) kom complementary external thread (3.1) which extends from an upper, open end (3.4) into the region of a lower, partially closed end (3.2) and which has a calibration (5) parallel to the central axis L in this region, and a central one arranged opening (3.3) in the partially closed end (3.2), and- in the second unilaterally open tube (3) inserted container (4) with an open-topped wall (4.3) in the region of the open end (4.2), one in the Opening (3.3) placed outlet device (4.4) at the bottom (4.1) of the container (4), wherein the container (4) with a viscous mass (4.5) is filled, as well as with a product-tight along the central axis L displaceable piston (2.4, 2.4 .1), which is arranged displaceably with the aid of the piston (2.3).

Description

Field of the invention

The present invention relates to a device for expressing viscous masses from containers.

State of the art

Devices for pressing viscous masses, in particular pasty masses, from containers, in particular cartridges, are known.

Thus, the German Offenlegungsschrift discloses DE 2217071 an apparatus for extruding viscous masses, in particular pastes, such as adhesives or sealants from packaging containers, such as cartridges, tubes or bags with an outlet at one end of the container and an optionally partially open bottom at the other end of the container. For this purpose, a piston is inserted from the bottom end into the container and displaced towards the outlet end and guided sealingly against the container inner surface in the container. In this case, the piston is pushed forward by means of an attacking on the piston rear screw. The screw is guided in a substantially central nut thread in a support element which is inserted into the bottom edge region of the container.

The disadvantage is that the support element is an integral part of the packaging container, for their attachment special measures such as the formation of a circumferential flange and a circumferential shoulder must be taken in the bottom edge area. If the packaging container is emptied, the entire assembly must be disposed of down to the screw spindle.

From the German patent DE 3025241 C2 is a squeezing device for filling high-viscosity products from mixing containers known. The device comprises a mounted in a stand hydraulic cylinder with a piston rod and a squeezing piston attached thereto, which is retractable into a mixing vessels to be emptied. In this case, a piston rod vacuum-tight enclosing cover for the mixing container along the piston rod is slidably disposed on the extrusion piston. The lid has on its underside a sealing ring for vacuum-tight support on the edge of the mixing container. In addition, a vacuum or ventilation line is connected to the lid. Further, fixed to the Auspresskolben or the lid supports are arranged for the lid between the extrusion piston and the lid.

The disadvantage here is that the device is relatively expensive and is more suitable for industrial use than for use in the private sector, kitchens or restaurants.

From the German patent DE 3222492 C2 is a dispenser known for pasty products. The dispenser comprises a cylindrical container containing the pasty product and a dispenser head provided at the upper end of the container and having a conveyor, a valve means and an actuator. The cylindrical container is a cartridge, which is interchangeably connected to the dispenser head by means of a screw thread or a bayonet closure. The cartridge is closed at the bottom with a follower piston which is under the pressure of the outside atmosphere and which is displaceable along the inner wall of the cartridge. The dispenser also has a dispenser shell surrounding the cartridge at the dispenser head.

Although it can be removed after emptying a cartridge, and it can be connected to the dispenser head with a new filled cartridge. The disadvantage here, however, that the dispenser head is difficult to clean, because the pasty products settle in the outlet nozzle and clog them.

From the German patent application DE 3632948A1 A cartridge ejector is known having a cartridge piston slidably mounted in a cylinder-like cartridge case for expelling a product. The cartridge piston contains a magnet, which is moved with the cartridge piston. In the cartridge housing, a reed contact which can be reached in at least one position of the magnet by its magnetic field is arranged at a predetermined location, whereby the level of the product in the cartridge housing is monitored. To propel the cartridge piston in the direction of the product still contained in the cartridge, the rear side of the cartridge piston is acted upon by compressed air via a compressed air inlet.

This device is also more suitable for industrial use than for use in the private sector, kitchens or restaurants.

From the European patent application EP 0621083A 1, a device for emptying cartridges is known, which has a frame, a threaded rod and two force-lockingly connected to the threaded rod via a bracket plunger. The threaded rod is rotatably supported by a support joint on the frame. To empty the cartridges they are inserted into the frame and a mixing device on it connected. The threaded rod is then turned by hand so that the two plungers travel into the cartridges and the components received in the cartridges are squeezed out via an extrusion piston arranged in the cartridges. The two components are mixed together in the mixing device and emerge from this as a ready-to-use mass.

This device is relatively complex and more suitable for industrial use than for use in the private sector, in kitchens or restaurants.

From the international patent application WO 03/057581 A1 a container is known from which the pastes contained in it can be pressed out quantitatively. More than two types of pastes can be squeezed out at the same time without having to be mixed first. For this purpose, the container comprises a housing with an internal thread and an actuator with a matching external thread, which can be screwed into the housing. The outlet opening can be closed by a cap.

• - ein Außenrohr, bei dem ein Ende als Einsatzloch ausgebildet ist und bei dem das andere Ende offen ist,
• - eine verschließbare Spritze, die ein Ende aufweist und ein niedrig vernetztbares Gel enthält, das darin hergestellt worden ist,
• - einen Kolbenkopf, der gleitbar in der verschließbaren Spritze angeordnet ist, um das Gel darin abzudichten,
• - Abgabemittel, die an dem Außenrohr festgelegt sind, um in Kontakt mit dem Kolbenkopf durch das offene andere Ende der verschließbaren Spritze zu gelangen, um diese zu drücken, wodurch das Gel durch eine Düse abgegeben bzw. ausgetragen wird, wobei
• - die verschließbare Spritze an dem einen Ende mit Mitteln versehen ist, um eine Düse in das Einsatzloch einzusetzen, unter denen ein Deckel oder eine Kappe zum Abdichten der Innenseite der verschließbaren Spritze an der verschließbaren Spritze anstelle der diese festlegbar ist.

From the translation DE 698 29 168 T2 the European patent specification EP 0 962 400 B1 For example, a dispenser or dispenser for a low crosslinkable gel is known

• an outer tube in which one end is formed as an insertion hole and in which the other end is open,
• a sealable syringe having one end and containing a low crosslinkable gel prepared therein,
• a piston head slidably disposed in the sealable syringe to seal the gel therein;
• Dispensing means fixed to the outer tube to come into contact with the piston head through the open other end of the sealable syringe to urge it, whereby the gel is dispensed through a nozzle, wherein
• - The sealable syringe is provided at one end with means for inserting a nozzle in the insertion hole, under which a lid or a cap for sealing the inside of the sealable syringe to the lockable syringe instead of the latter can be fixed.

These devices for expressing viscous masses from containers also have numerous disadvantages.

Object of the present invention

The present invention is based on the object to propose a device for pressing viscous masses from containers, which no longer has the disadvantages of the prior art.

In particular, the device should not require support elements as an integral part of the packaging container, for the attachment of special measures such as the formation of a circumferential bead and a circumferential shoulder must be taken in the bottom edge area. When the packaging container is emptied, it should no longer be necessary to dispose of the entire assembly except for the screw spindle.

In addition, it should be possible to easily manufacture, assemble, operate and easily clean the device after use so that it is suitable not only for industrial use but also for use in the home, especially in kitchens or restaurants is.

Furthermore, should be dispensed with a dispenser head, as it is difficult to clean after use, because the pasty products settle in the outlet nozzle and clog them.

Inventive solution

The above-mentioned objects and other objects are achieved by means of the device for expressing viscous masses from containers according to the independent claim. Advantageous embodiments are specified by the features of the subclaims.

In the following, the device for expressing viscous masses from containers will be referred to as "device according to the invention" for the sake of brevity.

Advantages of the invention

In view of the prior art, it was surprising and unforeseeable for the skilled person that the object of the present invention was based on which the device according to the invention could be achieved.

In particular, it was surprising that the device according to the invention no longer had the disadvantages of the prior art.

Above all, the device according to the invention required no support elements as integral Part of the packaging container more, for their attachment special measures such as the formation of a circumferential bead and a circumferential shoulder must be taken in the bottom edge area. When the container was emptied, it was no longer necessary to dispose of the entire assembly down to the screw spindle.

In addition, it has been possible to easily manufacture, assemble, operate and easily clean the device after use, making it suitable not only for industrial use but also for use in the home, especially in kitchens or restaurants ,

Furthermore, it was possible to dispense with a dispenser head, as it was difficult to clean after use, because the pasty products settled in the outlet nozzle and this clogged.

Detailed description of the invention

The device according to the invention serves for the extrusion of viscous masses from containers.

Examples of viscous masses or pasty masses are adhesives, sealants, coating materials, paints, ointments, creams, honey, jams, meat products such as sausage and minced meat, anchovy paste, tomato paste, mustard, fats or oils.

Examples of suitable containers are packaging containers such as cartridges, tubes and bags having an outlet at one container end and a partially open bottom at the other container end. In particular, cartridges are used.

Preferably, the cartridges are containers having a tubular wall which at one end or bottom thereof has a preferably centered outlet device. At the other end, the cartridges are closed with a product-tightly movable piston.

The product-tightly displaceable pistons may have on their product side side a preferably centrally protruding spur, which closes the complementary outlet devices of the cartridges in the deflated state, when the product-tightly displaceable piston has reached the bottom of the cartridge.

The cartridges may be constructed of a variety of materials such as metals, glass, plastics, wood, glass fiber reinforced plastic or composites of these materials. Preferably, they are made of plastics, preferably of engineering plastics and in particular of polyethylene, polypropylene, polyamide, polytetrafluoroethylene, polyvinyl chloride, polyvinylidene dichloride, polyvinylidene fluoride polytrifluorochloroethylene, polystyrene, impact modified polystyrene (ABS), polyacrylate, in particular polymethylmethacrylate, polydimethylsiloxane, polyurethane, polycarbonate, polyimide, Polyester, polyether, polysulfone, polyketone or blends of at least two of these plastics.

The outlet devices have the shape of a nozzle or a sealing lip, as they have, for example, dispensers for honey. Preferably, the lip is made of a soft plastic or of an elastomer such as polydimethylsiloxane. Closing lip can be closed with a removable protective cap.

After the container is completely or partially emptied by means of the device according to the invention, it can easily be replaced by a new one, without the device according to the invention having to be cleaned, which is a further particular advantage of the device according to the invention.

The device according to the invention comprises a first unilaterally closed, preferably closed with a plate, tube with an internal thread, which extends from the closed end to the open end of the tube. At the closed end, a piston rod is arranged centrally, which extends in the direction of the central axis of the device according to the invention. Preferably, the piston rod is screwed or clamped to the end by means of a screw connection or a plug connection. But it can also be welded to the end.

At the free end of the piston rod, a piston is arranged vertically to the piston rod, which is screwed or clamped to the piston rod by means of a screw connection or a plug connection. The piston can also be welded to the piston rod. Preferably, the piston rod is arranged centrally to the piston.

With the piston, the product-tightly displaceable piston is moved controlled in the container by simple screwing movements.

For this purpose, the first unilaterally closed tube has an internal thread extending from the closed end to the open end.

Optionally located in the wall, preferably at the closed end of the first tube closed on one side, a small opening to compensate for the pressure, the through Volume change in the sealed tube is caused by the screwing movements.

The device according to the invention also comprises a second unilaterally open tube with an external thread complementary to the internal thread of the first tube, which extends from the upper, open end into the region of the lower, partially closed end. In the partially closed end is a, preferably centrally located, opening in which the outlet device of the container is placed.

The first and the second unilaterally open or unilaterally closed tube can be constructed from a wide variety of materials. Preferably, they are constructed of metal, plastic, glass fiber reinforced plastic, wood, glass or composites of these materials. Preferably, metal, in particular stainless steel, is used.

In the context of the method according to the invention, the container to be emptied is inserted into the second closed tube, so that its outlet device protrudes through the preferably centrally arranged opening. Subsequently, the first and the second tube are screwed together. As a result of further rotational movements, the piston arranged in the first tube shifts the product-tightly displaceable piston along the central axis downwards in the container, as a result of which the container is emptied. Subsequently, the first and the second tube are unscrewed again, the empty container is removed and a new filled container used for emptying.

In the case of the device according to the invention, in the region of the external thread, a calibration arranged vertically parallel to the central axis is provided for measuring the fill level and the amount of viscous mass already emptied.

list of figures

• 1 einen Längsschnitt durch die erfindungsgemäße Vorrichtung in teilweise entleertem Zustand längs der Längsachse oder Symmetrieachse L der Vorrichtung gemäß dem Bezugsbeispiel 1;
• 2 einen Längsschnitt durch die Vorrichtung in vollständig entleertem Zustand längs der Längsachse oder Symmetrieachse der Vorrichtung gemäß dem Bezugsbeispiel 1;
• 3 eine Seitenansicht der erfindungsgemäßen Vorrichtung in teilweise entleertem Zustand;
• 4 einen Querschnitt durch die erfindungsgemäße 3 längs der Strecke A-A (vgl. 1);
• 5a einen Längsschnitt durch die Austrittsvorrichtung 4.4 der Kartusche 4 mit einer Verschlusskappe 6;
• 5b einen Längsschnitt durch die Austrittsvorrichtung 4.4 der Kartusche 4 in geöffnetem Zustand;
• 5c einen Querschnitt durch die Austrittsvorrichtung 4.4 der Kartusche 4 in geschlossenem Zustand.

The invention will now be explained in more detail by means of embodiments, reference being made to the accompanying figures. The figures serve to illustrate the structure and function of the invention. Their dimensions therefore do not need to correspond to those used in practice. It shows in simplified, not to scale representation:

• 1 a longitudinal section through the device according to the invention in a partially deflated state along the longitudinal axis or axis of symmetry L of the device according to the reference example 1;
• 2 a longitudinal section through the device in the fully deflated state along the longitudinal axis or axis of symmetry of the device according to the reference example 1;
• 3 a side view of the device according to the invention in a partially deflated condition;
• 4 a cross section through the inventive 3 along the route AA (cf. 1 );
• 5a a longitudinal section through the outlet device 4.4 of the cartridge 4 with a cap 6;
• 5b a longitudinal section through the outlet device 4.4 of the cartridge 4 in the open state;
• 5c a cross section through the outlet device 4.4 of the cartridge 4 in the closed state.

1

Vorrichtung zum Auspressen viskoser Massen aus einer Kartusche

2

Einseitig verschlossenes Edelstahlrohr 2 mit Innengewinde 2.1

2.1

Innengewinde

2.2

Am verschlossenen Ende 2.5 mittig angeordnete Kolbenstange aus Edelstahl

2.3

Vertikal zur Kolbenstange 2.2 angeordneter Kolben aus Edelstahl

2.4

Produktdicht verschiebbarer Kolben der Kartusche 4 aus Kunststoff

2.4.1

An der produktseitigen Unterseite des verschiebbaren Kolbens 2.4 mittig herausragender, zur Austrittsöffnung 4.4 komplementärer Sporn

2.5

Verschlossenes Ende des Edelstahlrohrs 2

2.6

Offenes Ende des Edelstahlrohrs 2

3

Einseitig offenes Edelstahlrohr mit zum Innengewinde 2.1 komplementärem Außengewinde 3.1

3.1

Außengewinde

3.2

Teilweise verschlossener Boden des Edelstahlrohrs 3

3.3

Mittig angeordnete Öffnung im teilweise verschlossenen Boden 3.2 des Edelstahlrohrs 3

3.4

Oberes Ende des Edelstahlrohrs 3

3.5

Unteres Ende des Außengewindes 3.1

4

Kartusche aus Kunststoff mit beweglichem Kolben 2.4

4.1

Boden der Kartusche

4.2

Offenes Ende der Kartusche 4

4.3

Kartuschenwand

4.4

Im Kartuschenboden 4.1 mittig angeordnete, durch den komplementären Sporn 2.4.1 verschließbare Austrittsvorrichtung

4.5

Viskose Masse

4.5.1

Austretende viskose Masse

4.6

Zur umlaufenden, horizontalen Fläche 6.4 komplementäre, vertikale, umlaufende Erhebung

4.7

Von den umlaufenden Erhebungen 4.6 und 4.8 eingeschlossene, zur vertikalen Erhebung 6.1 komplementäre Vertiefung

4.8

Zur umlaufenden Vertiefung 6.2 komplementärer, umlaufender, vertikaler Vorsprung

4.9

Zur mittig angeordneten Erhebung 6.3 komplementärer, umlaufender, horizontaler Vorsprung

4.10

Verschlusslippe

4.11

Austrittsöffnung für die viskose Masse 4.5

5

Auf der Außenwand des Edelstahlrohrs 3 vertikal angeordnete Graduierung

6

Verschlusskappe für die Austrittsvorrichtung 4.4

6.1

Zur umlaufenden Vertiefung 4.7 komplementärer, umlaufender Vorsprung

6.2

Zum umlaufenden, vertikalen Vorsprung 4.8 komplementäre, umlaufende Vertiefung

6.3

Zum umlaufenden, horizontalen Vorsprung 4.9 komplementärer, umlaufender, horizontaler Vorsprung

6.4

Zur umlaufenden, vertikalen Erhebung 4.6 komplemetäre horizontale Fläche

L

Mittelachse, Längsachse oder Symmetrieachse

A-A

Querschnittslinie durch die Vorrichtung 1 gemäß der 1 den

In the 1 to 5c the reference signs have the following meaning:

1

Device for extruding viscous masses from a cartridge

2

One-sided sealed stainless steel tube 2 with internal thread 2.1

2.1

inner thread

2.2

At the closed end 2.5 centrally located piston rod made of stainless steel

2.3

Vertically to the piston rod 2.2 arranged piston made of stainless steel

2.4

Cartridge 4 is made of plastic and can be moved in a product-tight manner

2.4.1

On the product side underside of the displaceable piston 2.4 centrally outstanding, the outlet opening 4.4 complementary spur

2.5

Locked end of stainless steel pipe 2

2.6

Open end of stainless steel pipe 2

3

One-sided open stainless steel tube with external thread 2.1 complementary to the internal thread 3.1

3.1

external thread

3.2

Partially closed bottom of stainless steel pipe 3

3.3

Centrally arranged opening in the partially closed bottom 3.2 of the stainless steel tube 3

3.4

Upper end of stainless steel pipe 3

3.5

Lower end of external thread 3.1

4

Plastic cartridge with movable piston 2.4

4.1

Bottom of the cartouche

4.2

Open end of the cartridge 4

4.3

cartridge wall

4.4

Centrally arranged in the bottom of the cartridge 4.1, closed by the complementary spur 2.4.1 outlet device

4.5

Viscous mass

4.5.1

Leaking viscous mass

4.6

To the circumferential, horizontal surface 6.4 complementary, vertical, circumferential survey

4.7

From the encircling surveys 4.6 and 4.8 included deepening, complementary to the vertical survey 6.1

4.8

For circumferential recess 6.2 complementary, circumferential, vertical projection

4.9

To the center elevation 6.3 complementary, circumferential, horizontal projection

4.10

sealing lip

4.11

Viscous mass exit 4.5

5

On the outer wall of the stainless steel tube 3 vertically arranged graduation

6

Cap for the outlet device 4.4

6.1

To circumferential recess 4.7 complementary, circumferential projection

6.2

For circumferential, vertical projection 4.8 complementary, circumferential recess

6.3

For circumferential, horizontal projection 4.9 complementary, circumferential, horizontal projection

6.4

For circumferential, vertical survey 4.6 complemetary horizontal surface

L

Central axis, longitudinal axis or symmetry axis

AA

Cross-sectional line through the device 1 according to the 1 the

Detailed description of the figures

Reference Example 1

FIG. 1 in conjunction with FIG. 2

The 1 shows the longitudinal section through an embodiment of a device 1 along its central axis L.

The device 1 serves to squeeze viscous masses 4.5 from containers, in this case from a cartridge 4 made of polyethylene of a clear width of 50 mm, a wall thickness of 2 mm and a length of the tubular part of 210 mm, measured from the bottom 4.1 the cartridge to the top 4.3 the cartridge wall in the area of the open end 4.2 , The 1 shows the cartouche 4 in a partially empty state. At the viscous mass 4.5 it is a pasty sealant.

At the bottom of the cartouche 4.1 is one through the complementary spur 2.4.1 the product-tight sliding piston 2.4 Precise and product-tight lockable outlet device 4.4 arranged in the middle. The cartouche 4 is in the unilaterally open, tubular stainless steel tube 3 stored such that the outlet device 4.4 from the centered opening 3.3 in the partially closed ground 3.2 of stainless steel pipe 3 protrudes.

The unilaterally open stainless steel tube 3 has a total length of 230 mm, a wall thickness of 3 mm and a clear width of 56 mm, allowing the cartridge 4 easily in the stainless steel tube 3 can be inserted and has no annoying game. The centrally located opening 3.3 has a clear width of 18 mm. The unilaterally open stainless steel tube 3 also has an external thread 3.1 up, extending from the top 3.4 of stainless steel pipe 3 220 mm towards the end 3.2 extends and at its lower end 3.5 merges into a smooth, thread-free surface.

After inserting the cartridge 4 in the unilaterally open stainless steel tube 3 is on its external thread 3.1 the right thing, at its end 2.5 closed, unilaterally open stainless steel tube 2 with the internal thread 2.1 screwed. The internal thread 2.1 of stainless steel pipe 2 runs from the one-sided closed end 2.5 to the lower open end 2.6 of stainless steel pipe 2 , The unilaterally open stainless steel tube 2 and his thread 2.1 are dimensioned so that they fit exactly on the external thread 3.1 the one-sided open stainless steel tube can be screwed. The length of the unilaterally open stainless steel tube 2 is chosen so that the piston rod arranged centrally in the length of 100 mm and a diameter of 10 mm when turning the open-sided stainless steel tubes 2 and 3 the attached, vertically arranged stainless steel piston diameter of 40 mm and the thickness of 10 mm, the movable piston 2.4 the cartouche 4 as far as product-tight can move, that the center outstanding spur 2.4.1 the exit opening 4.4 tightly closes.

Due to this arrangement, the sealant 4.5 completely out of the cartridge 4 be squeezed out, as in the 2 will be shown. The essential advantage of the preferred embodiment of the device according to the invention 1 according to the 1 and 2 lies in particular in the fact that when squeezing the sealant 4.5 the device 1 even not with the sealant 4.5 comes into contact and therefore does not have to be cleaned after each emptying process. Another significant advantage is that even cartridges can be emptied with a variety of viscous masses without additional measures must be taken. All you need is the stainless steel pipes 1 and 2 be screwed on, after which you can see the next cartridge 4 can insert and squeeze.

example 1

Figure 3 in conjunction with Figures 1 and 2 and Figures 5a, 5b and 5c

The 3 shows the external view of the inventive devices according to the 1 and 2 , Accordingly, the device according to the invention 1 of the 3 the same functional and constructive features as those of the 1 and 2 ,

The outside view shows that in the external thread 3.1 of stainless steel pipe 3 arranged graduation 5 , with the help of which the level or the amount of extruded sealant 4.5 can be read in a simple manner. No complicated magnetic or electrical devices are necessary for this purpose.

The 5a shows the embodiment of the outlet device 4.4 the cartouche 4 for a sealant 4.5 ,

The outlet device 4.4 includes a cap 6 for the outlet device 4.4 , The cap 6 has a circumferential recess 4.7 complementary, circumferential projection 6.1 , one to the circumferential, vertical projection 4.8 complementary, circumferential recess 6.2 , one to the circumferential, horizontal projection 4.9 complementary, circumferential, horizontal projection 6.3 as well as a circumferential, vertical survey 4.6 complementary horizontal surface 6.4 on.

The outlet opening 4.4 is by a closing lip 4.10 locked.

After removing the cap 6 (see the 5b ) is through the piston 2.4 Pressure on the sealant 4.5 exerted, causing the sealing lip 4.10 is opened and the sealant 4.5.1 from the now open outlet openings 4.11 can escape.

The 5c shows a plan view of a cross section of the outlet device 4.4 in the direction of the central axis L. In the center is the closing lip 4.10 with the outlet openings 4.11 , The circumferential, horizontal projection 4.9 surrounds the sealing lip 4.10 , To the horizontal projection 4.9 is the circumferential vertical projection 4.8 arranged. This is surrounded with the depression 4.7 , This in turn is surrounded by the encircling survey 4.6 ,

The main advantage of the outlet device 4.4 according to the 5a-5c lies mainly in the fact that the leaking sealant 4.5.1 can be applied particularly precisely dosed. The dosage may also be at timed intervals, with the time between two dosing intervals in the cartridge 4 still existing sealant 4.5 through the closed closing lip 4.10 retained and, for example, prevented from drying out.

Reference Example 2

Figure 4 in conjunction with Figures 1 and 2 and

Example 2

FIG. 4 in conjunction with FIG. 3

The 4 shows a cross section through the device according to the 1 long since the cross-section line AA. The cross-section shows the features arranged in concentric rings around the central axis L: stainless steel tube closed on one side 2 with internal thread 2.1 , External thread 3.1 of the single-ended stainless steel tube 3 , Cartouche wall 4.3 the cartouche 4 , product-tight sliding piston 2.4 the cartouche 4 , vertical to the piston rod 2.2 arranged piston 2.3 made of stainless steel and center on the center axis L.

Claims (7)

Device (1) for pressing viscous masses (4.5) from a container (4) comprising - a first unilaterally closed tube (2) with an internal thread (2.1) extending from a closed end (2.5) to an open end (2.6), wherein one at the closed end (2.5) centrally disposed in the direction of the central axis (L) extending piston rod (2.2) and a vertical to the piston rod (2.2) arranged piston (2.3), whereby a product-sealingly displaceable piston (2.4 ) is mounted in a container (4) in a controlled manner, wherein on the product side underside of the displaceable piston (2.4) an outstanding, to the outlet device (4.4) complementary spur (2.4.1) is arranged, wherein the outlet device (4.4) for the exiting viscous mass (4.5.1) is designed as a sealing lip (4.10) which can be closed by means of a closure cap (6), - a second tube (3) which is open on one side and has an external thread (3.1) which is complementary to the internal thread (2.1) extending from an upper, open end (3.4) to the area of a lower, partially closed end (3.2) and in this area a calibration (5) parallel to the central axis L, as well as a centrally arranged opening (3.3) in the partially closed end (3.2), and - a container (4) inserted into the second unilaterally open tube (3) with an open-top wall (4.3) in the region of the open end ( 4.2), an outlet device (4.4) placed in the opening (3.3) on the bottom (4.1) of the container (4), the container (4) being filled with a viscous mass (4.5) and a product-tight along the central axis L displaceable piston (2.4, 2.4.1), which is arranged displaceably with the aid of the piston (2.3). Device (1) according to Claim 1 , characterized in that the unilaterally closed tubes (2) and (3) by means of the threads (2.1) and (3.1) are arranged screwed against each other. Device (1) according to Claim 1 or 2 , characterized in that the product-tightly displaceable piston (2.4) of the container (4) by the screwing of the unilaterally closed tubes (2) and (3) by means of the piston rod (2.2) and the piston (2.3) is slidably disposed. Device (1) according to one of Claims 1 to 3 Characterized in that the closed on one side tubes (2) and (3) and the piston rod (2.2) and the piston (2.3) of metal, wood, glass, plastic, fiber reinforced plastic and / or composites of these materials are constructed. Device (1) according to Claim 4 , characterized in that the pipes (2) and (3) closed on one side as well as the piston rod (2.2) and the piston (2.3) are constructed of stainless steel. Device (1) according to one of Claims 1 to 5 , characterized in that the container (4) and the product-tightly displaceable piston (2.4) are constructed of plastic. Device (1) according to one of Claims 1 to 6 , characterized in that the container (4) is a cartridge.

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