EP1207969B1 - Ventilation device for a piston for a cartridge - Google Patents
Ventilation device for a piston for a cartridge Download PDFInfo
- Publication number
- EP1207969B1 EP1207969B1 EP01913897A EP01913897A EP1207969B1 EP 1207969 B1 EP1207969 B1 EP 1207969B1 EP 01913897 A EP01913897 A EP 01913897A EP 01913897 A EP01913897 A EP 01913897A EP 1207969 B1 EP1207969 B1 EP 1207969B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- ventilation device
- valve
- piston part
- filter section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
- B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
Definitions
- the innovation relates to a ventilation device in a piston for a cartridge according to the preamble of claim 1.
- a micropore filter is inserted into a pocket formed on the piston.
- the air trapped between the filling compound and the piston can escape through this micro-pore filter when the piston is inserted into the cartridge.
- This micropore filter is also intended to prevent the filling compound from escaping.
- Components of certain fillers have a creep oil-like behavior when the cartridges are stored. These components pass through the micropore filter, which leads to leakages.
- Venting device is shown in DE GM 295 06 800.
- the ventilation is carried out here via a plurality of valve pins attached to a partial circle of the piston cover, which are lifted off valve cones when the piston is pressed into the cartridge and thereby enable the air outlet.
- this venting device can only be manufactured with narrow manufacturing tolerances.
- Another disadvantage is the fact that parts of the filling compound can penetrate to the valves, which contaminate them, so that their sealing function is impaired.
- the task is to design it in such a way that the valve remains dry and free of dirt.
- the valve should prevent creeping oil-like components from escaping.
- the piston according to FIG. 1 has a first piston part 1, which is provided with a sealing lip 2, which comes into contact with the cartridge wall.
- This piston part 1 has a circular cylindrical recess 3.
- the piston also has a second piston part 4.
- This piston part 4 has a circular cylindrical wall part 5, which is locked at the bottom of the recess 3 with the first piston part 1.
- the snap connection is designated 6.
- the circular cylindrical wall part 5 merges into a valve pin 7 in an arc shape.
- This valve pin 7 penetrates a cylindrical bore 11 on the first piston part 1 and has a valve cone 9 which comes into contact with a valve lip 10 of the first piston part 1.
- the arcuate transition region 8 engages over the cylindrical wall 12 between the bore 11 and the depression 3.
- the latching 6 is interrupted by a small air duct 13.
- a filter section 14 is formed between the outside of the wall 12 and the inside of the circular cylindrical wall part 5. This filter section 14 consists of narrow channels on the inner wall of the wall part 5.
- the arcuate transition area 8 causes the valve pin 7 to be pressed against the piston rear side.
- valve pin 7 If the piston is inserted into a cartridge by a tool, the valve pin 7 is moved upward, whereby the valve formed by the parts 9, 10 is opened.
- the air enclosed between the filling compound and the piston escapes via the depression 3, the channel 13 and the filter section 14 and exits via the valve 9, 10.
- fillers which secrete creeping oil-like constituents it is possible that they overcome the filter section 14, but their escape is prevented by the valve 9, 10.
- the filter valve according to FIG. 1 is integrated in an annular piston 15.
- This ring piston is covered by a cover plate 16, which consists of a plastic material that is not attacked by the filling compound.
- This cover plate has at least one ventilation hole 17 and / or a ventilation channel 18, via which the air enclosed between the piston and the filling compound can escape to the filter valve.
- the embodiment according to FIGS. 3 and 4 differs from that according to FIG. 1 primarily in that instead of the curved transition area 8 there is now a disk-shaped transition area 19. This preferably has concentric waves 20. This disc-shaped transition region 19 has a spring function, which causes the valve cone 9 to be pressed against the valve lip 10. While the filter section 14 is formed by a helical channel 21 in the embodiment according to FIG. 1, the filter section 14A according to FIGS. 3 and 4 is formed by axially extending grooves 22 which are formed on the second piston part 4. Instead of axially extending grooves, helical grooves can also be provided.
- FIG. 4 shows how a piston setting tool 23 runs against the valve pin 7 and thus the valve 9, 10 opens.
- the first piston part 1 has a central bore 23 into which the second piston part 24 is inserted.
- a filter section 14 is formed between the bore 23 and the second piston part 24.
- a sealing lip 25 is formed, which comes to rest against a tapering region 26 of the bore 23.
- the filter section 14 can be formed by circumferential channels which have interruptions for the passage of air between the channels. It can also be formed by longitudinal ribs according to FIG. 3.
- the filter section 14 is preferably formed by helical threads.
- the channels of the filter section are only a few tenths of a millimeter thick, so that viscose fillings cannot pass through them.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Die Neuerung betrifft eine Entlüftungsvorrichtung bei einem Kolben für eine Kartusche nach dem Oberbegriff des Anspruches 1.The innovation relates to a ventilation device in a piston for a cartridge according to the preamble of claim 1.
Nach dem DE GM 298 00 594 ist in eine am Kolben angeformte Tasche ein Mikroporenfilter eingesetzt. Über dieses Mikroporenfilter kann die zwischen der Füllmasse und dem Kolben eingeschlossene Luft entweichen, wenn der Kolben in die Kartusche eingesetzt wird. Dieses Mikroporenfilter soll weiterhin einen Austritt der Füllmasse verhindern. Bestandteile bestimmter Füllmassen weisen bei der Lagerung der Kartuschen ein kriechölartiges Verhalten auf. Diese Bestandteile durchwandern das Mikroporenfilter, womit es zu Leckagen kommt.According to DE GM 298 00 594, a micropore filter is inserted into a pocket formed on the piston. The air trapped between the filling compound and the piston can escape through this micro-pore filter when the piston is inserted into the cartridge. This micropore filter is also intended to prevent the filling compound from escaping. Components of certain fillers have a creep oil-like behavior when the cartridges are stored. These components pass through the micropore filter, which leads to leakages.
Eine weitere Entlüftungsvorrichtung zeigt das DE GM 295 06 800. Die Entlüftung wird hierbei über mehrere, auf einem Teilkreis der Kolbenabdeckung angebrachte Ventilzapfen vorgenommen, welche beim Eindrücken des Kolbens in die Kartusche von Ventilkonen abgehoben werden und dadurch den Luftauslaß ermöglichen. Diese Entlüftungsvorrichtung ist jedoch nur mit engen Fertigungstoleranzen herstellbar. Ein weiterer Nachteil ist darin zu sehen, daß Teile der Füllmasse bis zu den Ventilen vordringen können, die hierdurch verschmutzen, so daß ihre Dichtfunktion beeinträchtigt wird.Another ventilation device is shown in DE GM 295 06 800. The ventilation is carried out here via a plurality of valve pins attached to a partial circle of the piston cover, which are lifted off valve cones when the piston is pressed into the cartridge and thereby enable the air outlet. However, this venting device can only be manufactured with narrow manufacturing tolerances. Another disadvantage is the fact that parts of the filling compound can penetrate to the valves, which contaminate them, so that their sealing function is impaired.
Ausgehend von dieser Entlüftungsvorrichtung stellt sich die Aufgabe, diese so auszubilden, daß das Ventil trocken und frei von Verschmutzungen bleibt. Kriechölartige Bestandteile der Füllmassen sollen vom Ventil am Austreten gehindert werden.Starting from this venting device, the task is to design it in such a way that the valve remains dry and free of dirt. The valve should prevent creeping oil-like components from escaping.
Gelöst wird diese Aufgabe mit den Merkmalen des Anspruches 1. Vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar.This object is achieved with the features of claim 1. Advantageous refinements can be found in the subclaims.
Ausführungsbeispiele werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigen:
- Figur 1:
- einen Schnitt durch eine erste Ausführungsform eines Kolbens;
- Figur 2:
- einen Schnitt durch einen Ringkolben mit der Entlüftungsvorrichtung nach Figur 1;
- Figur 3:
- einen Schnitt durch eine zweite Ausführungsform eines Kolbens bei geschlossener Entlüftungsvorrichtung;
- Figur 4:
- einen Schnitt durch den Kolben der Figur 3 bei geöffneter Entlüftungsvorrichtung und
- Figur 5:
- einen Schnitt durch eine dritte Ausführungsform eines Kolbens.
- Figure 1:
- a section through a first embodiment of a piston;
- Figure 2:
- a section through an annular piston with the venting device of Figure 1;
- Figure 3:
- a section through a second embodiment of a piston with the ventilation device closed;
- Figure 4:
- a section through the piston of Figure 3 with the venting device open and
- Figure 5:
- a section through a third embodiment of a piston.
Der Kolben nach Figur 1 weist ein erstes Kolbenteil 1 auf, das mit einer Dichtlippe 2 versehen ist, welche zur Anlage an die Kartuschenwand kommt. Dieses Kolbenteil 1 weist eine kreiszylindrische Vertiefung 3 auf. Der Kolben weist weiterhin ein zweites Kolbenteil 4 auf. Dieses Kolbenteil 4 besitzt ein kreiszylindrisches Wandungsteil 5, das am Grund der Vertiefung 3 mit dem ersten Kolbenteil 1 verrastet ist. Die Rastverbindung ist mit 6 bezeichnet. Das kreiszylindrische Wandungsteil 5 geht bogenförmig in einen Ventilzapfen 7 über. Dieser Ventilzapfen 7 durchdringt eine zylindrische Bohrung 11 am ersten Kolbenteil 1 und weist einen Ventilkegel 9 auf, der zur Anlage an eine Ventillippe 10 des ersten Kolbenteils 1 kommt. Der bogenförmige Übergangsbereich 8 übergreift die zylindrische Wand 12 zwischen der Bohrung 11 und der Vertiefung 3.The piston according to FIG. 1 has a first piston part 1, which is provided with a sealing lip 2, which comes into contact with the cartridge wall. This piston part 1 has a circular cylindrical recess 3. The piston also has a second piston part 4. This piston part 4 has a circular cylindrical wall part 5, which is locked at the bottom of the recess 3 with the first piston part 1. The snap connection is designated 6. The circular cylindrical wall part 5 merges into a valve pin 7 in an arc shape. This valve pin 7 penetrates a cylindrical bore 11 on the first piston part 1 and has a valve cone 9 which comes into contact with a valve lip 10 of the first piston part 1. The arcuate transition region 8 engages over the cylindrical wall 12 between the bore 11 and the depression 3.
Die Verrastung 6 ist durch einen kleinen Luftkanal 13 unterbrochen. Zwischen der Außenseite der Wand 12 und der Innenseite des kreiszylindrischen Wandungsteils 5 wird eine Filterstrecke 14 gebildet. Diese Filterstrecke 14 besteht aus engen Kanälen an der Innenwand des Wandungsteils 5.The latching 6 is interrupted by a small air duct 13. A filter section 14 is formed between the outside of the wall 12 and the inside of the circular cylindrical wall part 5. This filter section 14 consists of narrow channels on the inner wall of the wall part 5.
Der bogenförmige Übergangsbereich 8 bewirkt, daß der Ventilzapfen 7 gegen die Kolbenrückseite gedrückt wird.The arcuate transition area 8 causes the valve pin 7 to be pressed against the piston rear side.
Wird der Kolben durch ein Werkzeug in eine Kartusche eingesetzt, dann wird der Ventilzapfen 7 nach oben bewegt, wodurch das von den Teilen 9, 10 gebildete Ventil geöffnet wird. Die zwischen der Füllmasse und dem Kolben eingeschlossene Luft entweicht über die Vertiefung 3, den Kanal 13 und die Filterstrecke 14 und tritt über das Ventil 9, 10 aus. Wird der Kolben gegen die Füllmasse gedrückt, dann kann diese wohl über den Kanal 13 gelangen, nicht jedoch durch die Filterstrecke 14. Auf diese Weise wird verhindert, daß Füllmasse bis zum Ventil 9, 10 gelangt. Bei Füllmassen, die kriechölartige Bestandteile absondern, ist es wohl möglich, daß diese die Filterstrecke 14 überwinden, jedoch wird ihr Austritt durch das Ventil 9,10 verhindert.If the piston is inserted into a cartridge by a tool, the valve pin 7 is moved upward, whereby the valve formed by the parts 9, 10 is opened. The air enclosed between the filling compound and the piston escapes via the depression 3, the channel 13 and the filter section 14 and exits via the valve 9, 10. Becomes the piston is pressed against the filling compound, it can then pass through the channel 13, but not through the filter section 14. This prevents the filling compound from reaching the valve 9, 10. In the case of fillers which secrete creeping oil-like constituents, it is possible that they overcome the filter section 14, but their escape is prevented by the valve 9, 10.
Gemäß Figur 2 ist das Filterventil nach Figur 1 in einen Ringkolben 15 integriert. Dieser Ringkolben wird durch eine Abdeckscheibe 16 abgedeckt, die aus einem Kunststoffmaterial besteht, das von der Füllmasse nicht angegriffen wird. Diese Abdeckscheibe weist mindestens eine Entlüftungsbohrung 17 und/oder einen Entlüftungskanal 18 auf, über welche die zwischen dem Kolben und der Füllmasse eingeschlossene Luft zum Filterventil entweichen kann.According to FIG. 2, the filter valve according to FIG. 1 is integrated in an annular piston 15. This ring piston is covered by a cover plate 16, which consists of a plastic material that is not attacked by the filling compound. This cover plate has at least one ventilation hole 17 and / or a ventilation channel 18, via which the air enclosed between the piston and the filling compound can escape to the filter valve.
Die Ausführungsform nach den Figuren 3 und 4 unterscheidet sich von derjenigen nach der Figur 1 in erster Linie dadurch, daß anstelle des bogenförmigen Übergangsbereichs 8 nunmehr ein scheibenförmiger Übergangsbereich 19 vorhanden ist. Dieser weist bevorzugt konzentrische Wellen 20 auf. Dieser scheibenförmige Übergangsbereich 19 weist eine Federfunktion auf, die bewirkt, daß der Ventilkegel 9 gegen die Ventillippe 10 gedrückt wird. Während bei der Ausführungsform nach Figur 1 die Filterstrecke 14 von einem wendelförmigen Kanal 21 gebildet wird, wird die Filterstrecke 14A nach den Figuren 3 und 4 durch axial verlaufende Rillen 22 gebildet, die am zweiten Kolbenteil 4 angeformt sind. Anstelle axial verlaufender Rillen können auch wendelförmige Rillen vorgesehen sein.The embodiment according to FIGS. 3 and 4 differs from that according to FIG. 1 primarily in that instead of the curved transition area 8 there is now a disk-shaped transition area 19. This preferably has concentric waves 20. This disc-shaped transition region 19 has a spring function, which causes the valve cone 9 to be pressed against the valve lip 10. While the filter section 14 is formed by a helical channel 21 in the embodiment according to FIG. 1, the filter section 14A according to FIGS. 3 and 4 is formed by axially extending grooves 22 which are formed on the second piston part 4. Instead of axially extending grooves, helical grooves can also be provided.
In Figur 4 wird verdeutlicht, wie ein Kolbensetzwerkzeug 23 gegen den Ventilzapfen 7 anläuft und damit das Ventil 9, 10 öffnet.FIG. 4 shows how a piston setting tool 23 runs against the valve pin 7 and thus the valve 9, 10 opens.
Bei der Ausführungsform nach der Figur 5 ist wiederum eine Abdeckscheibe 16 mit Entlüftungsbohrungen 17 vorhanden. Das erste Kolbenteil 1 weist eine mittige Bohrung 23 auf, in welche das zweite Kolbenteil 24 eingesetzt ist. Zwischen der Bohrung 23 und dem zweiten Kolbenteil 24 wird eine Filterstrecke 14 gebildet. Am unteren Ende des Kolbenteils 24 ist eine Dichtlippe 25 angeformt, die zur Anlage an einen sich verjüngenden Bereich 26 der Bohrung 23 kommt.In the embodiment according to FIG. 5 there is again a cover plate 16 with ventilation bores 17. The first piston part 1 has a central bore 23 into which the second piston part 24 is inserted. A filter section 14 is formed between the bore 23 and the second piston part 24. At the lower end of the piston part 24, a sealing lip 25 is formed, which comes to rest against a tapering region 26 of the bore 23.
Die Filterstrecke 14 kann durch umlaufende Kanäle gebildet werden, welche Unterbrechungen zum Durchtritt der Luft zwischen den Kanälen aufweist. Sie kann auch durch Längsrippen gemäß Figur 3 gebildet werden. Bevorzugt wird die Filterstrecke 14 gebildet durch wendelförmige Gewindegänge. Die Kanäle der Filterstrecke sind nur wenige Zehntel Millimeter dick, so daß Viskosefüllmassen durch diese nicht hindurchtreten können.The filter section 14 can be formed by circumferential channels which have interruptions for the passage of air between the channels. It can also be formed by longitudinal ribs according to FIG. 3. The filter section 14 is preferably formed by helical threads. The channels of the filter section are only a few tenths of a millimeter thick, so that viscose fillings cannot pass through them.
Claims (14)
- Ventilation device for a piston for a cartridge, comprising a first piston part (1) which bears sealingly against the cartridge wall, and comprising a second piston part (4, 24) which together with the first piston part (1) forms a valve (9, 10) which opens when a pressure is exerted on the rear side of the piston so that the air trapped between the filling compound and the piston can escape, characterised in that a filter section (14) exhibiting at least one narrow channel forming a barrier for passage of the filling compound, is formed before the valve (9, 10) between the two piston parts (1; 4, 24) viewed in the flow path of the air through the valve (9, 10).
- Ventilation device according to claim 1, characterised in that the valve (9, 10) and the filter section (14) are arranged concentrically with one another.
- Ventilation device according to claim 1 or 2, characterised in that the external circumference of the second piston part (4) is latched with the first piston part (1), the latch (6) is interrupted by an air channel (13) and the filter section (14) adjoins the latch (6).
- Ventilation device according to claim 3, characterised in that the second piston part (4) exhibits a valve cone (9) which tapers towards the rear side of the piston and when the second piston part (4) is latched is pressed by this against a valve lip (10) on the first piston part (1).
- Ventilation device according to claim 4, characterised in that the first piston part (1) exhibits a circular cylindrical recess (3) into which a circular cylindrical wall part (5) of the second piston part (4) engages which in the middle runs into a valve pin (7) exhibiting the valve cone (9).
- Ventilation device according to claim 5, characterised in that the filter section (14) is formed between a wall of the recess (3) and a wall of the wall part (5).
- Ventilation device according to claim 5 or 6, characterised in that the circular cylindrical wall part (5) runs in a curve into the valve pin (7) and this curved transitional area (8) presses the valve pin (7) in the direction of the rear side of the piston.
- Ventilation device according to claim 5 or 6, characterised in that the circular cylindrical wall part (5) runs into the valve pin (7) in the shape of a disc, this disc-shaped transitional area (19) is preferably of concentric undulating shape and presses the valve pin (7) in the direction of the rear side of the piston.
- Ventilation device according to claim 1 or 2, characterised in that the first piston part (1) exhibits a circular cylindrical bore (23) into which the second piston part (24) is inserted which on the rear side of the piston exhibits a valve lip (25) which comes to bear on a tapering area (26) of the bore (23).
- Ventilation device according to one of claims 1 to 9, characterised in that the filter section (14) is formed by circumferential channels exhibiting breaks.
- Ventilation device according to one of claims 1 to 9, characterised in that the filter section (14) is formed by longitudinal ribs.
- Ventilation device according to one of claims 1 to 9, characterised in that the filter section (14) is formed by thread turns.
- Ventilation device according to one of claims 10 to 12, characterised in that the channels are a few tenths of a millimetre thick.
- Ventilation device according to one of claims 1 to 13, characterised in that on its upper side facing the filling compound the first piston part (1) is covered by a covering disc (16) exhibiting bores (17).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20010417U DE20010417U1 (en) | 2000-06-09 | 2000-06-09 | Bleeding device for a piston for a cartridge |
| DE20010417U | 2000-06-09 | ||
| PCT/EP2001/003221 WO2001094028A1 (en) | 2000-06-09 | 2001-03-21 | Ventilation device for a piston for a cartridge |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1207969A1 EP1207969A1 (en) | 2002-05-29 |
| EP1207969B1 true EP1207969B1 (en) | 2004-12-29 |
| EP1207969B2 EP1207969B2 (en) | 2007-07-04 |
Family
ID=7942724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01913897A Expired - Lifetime EP1207969B2 (en) | 2000-06-09 | 2001-03-21 | Ventilation device for a piston for a cartridge |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6598766B1 (en) |
| EP (1) | EP1207969B2 (en) |
| DE (2) | DE20010417U1 (en) |
| WO (1) | WO2001094028A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770217A (en) * | 2009-12-11 | 2012-11-07 | 苏舍米克斯帕克有限公司 | Cartridge piston |
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|---|---|---|---|---|
| DE20117778U1 (en) * | 2001-10-31 | 2003-03-20 | Sulzer Chemtech Ag Winterthur | Cartridge piston with ventilation |
| EP1461268A4 (en) * | 2001-12-10 | 2009-03-25 | Tah Ind Inc | Dispensing cartridge with tortuous vent path |
| DE10235599A1 (en) * | 2002-08-02 | 2004-02-19 | Ritter Gmbh | Vented plunger for dispenser cartridges of plastics masses is one-piece injection moulded plastics part with front and rear parts connected by connector through film hinges with vent to fold and concertina to produce closed plunger |
| DE10342091A1 (en) * | 2003-09-10 | 2005-04-28 | Heraeus Kulzer Gmbh | Cartridge with ventable piston |
| GB0321332D0 (en) * | 2003-09-11 | 2003-10-15 | Glaxosmithkline Consumer Healt | Novel device |
| US6899254B1 (en) * | 2004-01-20 | 2005-05-31 | Plas-Pak Industries, Inc. | Venting seal for dispenser |
| EP1728560A1 (en) * | 2005-06-03 | 2006-12-06 | 3M Innovative Properties Company | System for storing and dispensing of a substance |
| US7621428B2 (en) | 2005-07-01 | 2009-11-24 | Nordson Corporation | Dispensing cartridge with vented piston |
| AU2006304190B2 (en) | 2005-10-14 | 2010-11-11 | Solventum Intellectual Properties Company | Plunger and plunger assembly for a cartridge, system for storing a substance, and method of filling and sealing a substance in a delivery system |
| DE102006047289B4 (en) * | 2006-10-06 | 2008-09-04 | Sulzer Chemtech Ag | cartridge plunger |
| EP2190592B2 (en) † | 2007-09-19 | 2015-08-26 | Kettenbach GmbH & CO. KG | Container |
| GB0721774D0 (en) * | 2007-11-07 | 2007-12-19 | 3M Innovative Properties Co | one-piece vented piston |
| DE102008000841B8 (en) * | 2008-03-26 | 2014-07-10 | Adcatec Gmbh | Cartridge and piston with venting device |
| US20100096404A1 (en) * | 2008-10-17 | 2010-04-22 | Melvin Seymour Cook | Liquid distribution |
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| EP2461912B1 (en) | 2009-08-04 | 2016-08-17 | 3M Innovative Properties Company | Dispensing device with pressure release |
| GB0920768D0 (en) * | 2009-11-26 | 2010-01-13 | Rieke Corp | Dispenser pumps |
| US8511350B2 (en) | 2009-12-22 | 2013-08-20 | Sulzer Mixpac Ag | Piston setting device and method |
| USD657876S1 (en) | 2010-02-02 | 2012-04-17 | 3M Innovative Properties Company | Dental capsule |
| US9815592B2 (en) * | 2010-06-03 | 2017-11-14 | Priska I. Diaz | Leak-free airless container having piston device |
| JP2012056633A (en) | 2010-09-13 | 2012-03-22 | Sulzer Mixpac Ag | Cartridge piston |
| US9469061B2 (en) | 2013-01-30 | 2016-10-18 | Plas-Pak Industries Inc | One-piece ventable piston for a dispensing apparatus, a dispensing apparatus with same, and method of making same |
| EP2873465A1 (en) * | 2013-11-18 | 2015-05-20 | Sulzer Mixpac AG | Piston for delivering a fluid component from a cartridge. |
| EP2998030A1 (en) * | 2014-09-17 | 2016-03-23 | Sulzer Mixpac AG | Piston for a cartridge, cartridge and method of venting a cartridge |
| FR3047186B1 (en) * | 2016-02-01 | 2020-02-14 | Albea Lacrost | AIR BLEEDING DEVICE FOR A LIQUID PRODUCT DISPENSER WITHOUT AIR INTAKE |
| EP3299082A1 (en) | 2016-09-21 | 2018-03-28 | 3M Innovative Properties Company | Mixer assembly and device for dispensing a dental material |
| DE202016006508U1 (en) | 2016-10-21 | 2017-01-09 | Ritter Gmbh | Cartridge piston with bleeder valve |
| KR102472763B1 (en) * | 2017-12-20 | 2022-12-01 | 메드믹스 스위처랜드 아게 | How to aerate pistons, cartridges and cartridges |
| DE102019118627A1 (en) * | 2018-07-16 | 2020-01-16 | Fischerwerke Gmbh & Co. Kg | Cartridge with piston and venting device |
| DE102022125144A1 (en) | 2022-09-29 | 2024-04-04 | Kulzer Gmbh | Cartridge piston device for insertion into a cartridge, method for venting and closing a cartridge and use of a cartridge piston device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH598070A5 (en) | 1974-09-04 | 1978-04-28 | Fischbach Alfred Kg Kunststoff | |
| DE3148490C2 (en) * | 1981-12-08 | 1986-02-13 | Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen | Bottom closure for a hollow cylindrical extrusion container |
| US4671432A (en) * | 1985-10-21 | 1987-06-09 | The Procter & Gamble Company | Pump dispenser for fluent products featuring a reciprocable plunger and diaphragm seal |
| DE3615659A1 (en) * | 1986-05-09 | 1987-11-12 | Hilti Ag | PRESSURE PISTON WITH STORAGE CHAMBER |
| US5000355A (en) * | 1986-07-30 | 1991-03-19 | Beecham Inc. | Pump dispenser |
| GB2197425B (en) * | 1986-11-12 | 1990-02-28 | Metal Box Plc | Pistons for pressure-dispensing containers |
| FR2626248B1 (en) | 1988-01-21 | 1990-06-22 | Simon Patrick | VENT PISTON CONTAINER AND ITS APPLICATION TO DISTRIBUTORS IN PARTICULAR OF COSMETIC PRODUCTS |
| DE58903082D1 (en) | 1988-06-03 | 1993-02-04 | Wilhelm A Keller | DISCHARGE CARTRIDGE WITH STORAGE CYLINDER AND PISTON PISTON. |
| IT1217852B (en) * | 1988-06-17 | 1990-03-30 | Guala Spa | DISPENSER OF PASTOUS PRODUCTS, PARTICULARLY OF PASTA TOOTHPASTE |
| EP0463991B1 (en) * | 1990-06-21 | 1994-11-02 | Wilhelm A. Keller | Dispensing cartridge with a supply cylinder and an expulsion piston |
| US5176291A (en) * | 1991-06-14 | 1993-01-05 | Owens-Illinois Closure Inc. | Dispensing package for a viscous product with a reusable pumping mechanism |
| DE9110529U1 (en) | 1991-08-26 | 1991-10-10 | Prestele, Eugen, 8900 Augsburg | cartridge |
| US5238003A (en) * | 1992-02-07 | 1993-08-24 | Baidwan Balinderjeet S | Plunger tip for blood gas syringe |
| DE29506800U1 (en) | 1995-04-21 | 1996-08-29 | Prestele, Eugen, 86161 Augsburg | Venting device |
| DE29800594U1 (en) | 1998-01-15 | 1998-03-26 | Prestele, Eugen, 86179 Augsburg | Venting device |
| DE20001438U1 (en) * | 2000-01-28 | 2001-06-13 | Prestele Eugen | Cartridge piston |
-
2000
- 2000-06-09 DE DE20010417U patent/DE20010417U1/en not_active Expired - Lifetime
-
2001
- 2001-03-21 EP EP01913897A patent/EP1207969B2/en not_active Expired - Lifetime
- 2001-03-21 DE DE50104959T patent/DE50104959D1/en not_active Expired - Lifetime
- 2001-03-21 US US10/048,282 patent/US6598766B1/en not_active Expired - Lifetime
- 2001-03-21 WO PCT/EP2001/003221 patent/WO2001094028A1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770217A (en) * | 2009-12-11 | 2012-11-07 | 苏舍米克斯帕克有限公司 | Cartridge piston |
| CN102770217B (en) * | 2009-12-11 | 2016-01-13 | 苏舍米克斯帕克有限公司 | Cartridge piston |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50104959D1 (en) | 2005-02-03 |
| EP1207969A1 (en) | 2002-05-29 |
| DE20010417U1 (en) | 2001-10-11 |
| WO2001094028A1 (en) | 2001-12-13 |
| US6598766B1 (en) | 2003-07-29 |
| EP1207969B2 (en) | 2007-07-04 |
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