DE29506800U1 - Venting device - Google Patents
Venting deviceInfo
- Publication number
- DE29506800U1 DE29506800U1 DE29506800U DE29506800U DE29506800U1 DE 29506800 U1 DE29506800 U1 DE 29506800U1 DE 29506800 U DE29506800 U DE 29506800U DE 29506800 U DE29506800 U DE 29506800U DE 29506800 U1 DE29506800 U1 DE 29506800U1
- Authority
- DE
- Germany
- Prior art keywords
- piston part
- piston
- pin
- bore
- cartridge
- 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
- 238000013022 venting Methods 0.000 title claims description 6
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- -1 because the soft Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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
- B05C17/00553—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 with means allowing the stock of material to consist of at least two different components
- B05C17/00559—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 with means allowing the stock of material to consist of at least two different components the different components being stored in coaxial chambers
-
- 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
- B05C17/00553—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 with means allowing the stock of material to consist of at least two different components
-
- 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
-
- 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
-
- 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
- B05C17/01—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 with manually mechanically or electrically actuated piston or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
- B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
- Massaging Devices (AREA)
- Arc Welding In General (AREA)
Description
• ♦ · * •♦ · *
EntlüftungsvorrichtungVentilation device
Die Neuerung betrifft eine Entlüftungsvorrichtung nach, dem Oberbegriff des Anspruches 1.The innovation relates to a ventilation device according to the preamble of claim 1.
Die Kolben einer Kartusche werden in der Regel aus einem weichen Kunststoff, wie beispielsweise LDPE hergestellt, da das weiche, elastische Material eine dauerhafte Dichtwirkung mit den Wandungen der Kartusche bewirkt. Dieser weiche Kunststoff ist jedoch gegenüber einigen Füllmassen, wie beispielsweise Polyesterharzen nicht resistent und weist zudem keine ausreichende Barrierewirkung gegen das Durchdiffundieren bestimmter Materialien auf, wie dies beispielsweise insbesondere für Styrol gilt.The pistons of a cartridge are usually made of a soft plastic, such as LDPE, because the soft, elastic material creates a permanent sealing effect with the walls of the cartridge. However, this soft plastic is not resistant to some filling materials, such as polyester resins, and also does not have a sufficient barrier effect against the diffusion of certain materials, such as styrene in particular.
Dem könnte abgeholfen werden, wenn der Kolben aus Polyamid hergestellt werden würde. Polyamid ist jedoch relativ teuer und außerdem zu hart, um eine dauerhafte sichere Dichtwirkung mit der Wand der Kartusche zu gewährleisten.This could be remedied if the piston were made of polyamide. However, polyamide is relatively expensive and also too hard to ensure a permanent, secure seal with the wall of the cartridge.
Eine Abhilfe besteht darin, den aus einem weichen Kunststoff bestehenden Kolben mit Fluor zu bedampfen, womit ein Schutz des weichen Kunststoffs und eine Barriereschicht erzielt wird. Nachteilig ist hierbei, daß die erforderliche Schichtdicke des Fluors nicht kontrollierbar ist und Bereiche auftreten, bei denen die Schicht aus Fluor nicht ausreichend dick ist.One solution is to vaporize the piston, which is made of soft plastic, with fluorine, which protects the soft plastic and creates a barrier layer. The disadvantage here is that the required layer thickness of the fluorine cannot be controlled and areas arise where the layer of fluorine is not thick enough.
Eine weitere Möglichkeit besteht darin, den Kolben aus zwei Kolbenteilen zu fertigen, von denen das eine Kolbenteil aus einem weichen elastischen Kunststoff besteht, das abdichtend gegen die Innenwand der Kartusche anliegt. Auf dem ersten Kolbenteil wird an der der Füllmasse zugewandten Seite ein zweites Kolbenteil angeordnet, das aus einem gegenüber der Füllmasse resistenten Kunststoffmaterial besteht. Das erste Kolbenteil besteht hierbei beispielsweise aus LDPE, während das zweite Kolbenteil aus Polyamid gefertigt wird. Diese Lösung ist kostengünstig. Von dieser Lösung wird im vorliegenden Fall ausgegangen.Another possibility is to manufacture the piston from two piston parts, of which one piston part is made of a soft, elastic plastic that seals against the inner wall of the cartridge. On the first piston part, a second piston part is arranged on the side facing the filling compound, which is made of a plastic material that is resistant to the filling compound. The first piston part is made of LDPE, for example, while the second piston part is made of polyamide. This solution is cost-effective. This solution is used in this case.
• ··
Beim Abfüllen von Kartuschen sollen Lufteinschlüsse beim Einsetzen des Kolbens nach dem Abfüllen der Füllmasse vermieden werden. Dies kann vermieden werden, indem das Abfüllen unter Vakuum erfolgt oder im Kolben mindestens eine Entlüftungsbohrung vorgesehen wird, welche nach dem Abfüllen der Füllmasse verschlossen wird. Beide Lösungen sind jedoch relativ kostenaufwendig.When filling cartridges, air pockets should be avoided when inserting the piston after filling the filling compound. This can be avoided by filling under vacuum or by providing at least one vent hole in the piston, which is closed after filling the filling compound. However, both solutions are relatively expensive.
Es besteht die Aufgabe, bei dem aus zwei Kolbenteilen bestehenden Kolben eine Entlüftungsmöglichkeit vorzusehen, die es ermöglicht, nach dem Abfüllen der Kartusche und beim Einsetzen des Kolbens die Kartusche auf kostengünstige Weise zu entlüften.The task is to provide a venting option for the piston, which consists of two piston parts, which makes it possible to vent the cartridge in a cost-effective manner after filling the cartridge and when inserting the piston.
Gelöst wird diese Aufgabe mit den kennzeichnenden Merkmalen des Anspruches 1. Vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar.This problem is solved with the characterizing features of claim 1. Advantageous embodiments can be found in the subclaims.
Ein Ausführungsbeispiel wird nachfolgend an Hand der Zeichnungen näher erläutert. Es zeigen:An embodiment is explained in more detail below using the drawings. They show:
Fig. 1 einen Längsschnitt durch eine Kartusche zur Aufnahme einer Zweikomponentenmasse; Fig. 1 is a longitudinal section through a cartridge for holding a two-component mass;
Fig. 2 einen Querschnitt durch diese Kartusche in Draufsicht auf die Kolben;
Fig. 3 einen Teilschnitt längs der Linie C in Figur 2;
Fig. 4 einen Teilschnitt längs der Linie A in Figur 2;
Fig. 5 einen Teilschnitt längs der Linie B in Figur 2; Fig. 2 shows a cross-section through this cartridge with a plan view of the pistons;
Fig. 3 is a partial section along the line C in Figure 2;
Fig. 4 is a partial section along the line A in Figure 2;
Fig. 5 is a partial section along the line B in Figure 2;
Fig. 6 einen Teilschnitt längs der Linie A in Figur 2 zur Verdeutlichung der Entlüftung; und Fig. 6 is a partial section along line A in Figure 2 to illustrate the ventilation; and
Fig. 7 einen Teilschnitt längs der Linie C in Figur 2 zur Verdeutlichung der Verhältnisse bei der Verarbeitung der Massen. Fig. 7 is a partial section along the line C in Figure 2 to illustrate the conditions during processing of the masses.
Die Kartusche gemäß Figur 1 weist eine mittige kreiszylindrische Kammer 1 auf, welche von einer kreisringförmigen zylindrischen Kamer 2 umgeben ist. Exzentrisch zur Kartuschenachse ist eine Tülle 3 vorgesehen, über welche die in den Kammern 1, 2 enthaltenden Massen ausgedrückt werden können.The cartridge according to Figure 1 has a central circular cylindrical chamber 1, which is surrounded by a circular cylindrical chamber 2. Eccentrically to the cartridge axis, a spout 3 is provided, through which the masses contained in the chambers 1, 2 can be squeezed out.
Am unteren Ende der mittigen Kammer 1 ist ein Kolben 4 angeordnet. Diese Kammer 1 ist mit einer Masse gefüllt, welche auf das Material des Kolbens 4 nicht aggressiv wirkt. Die Ringkammer 2 dagegen ist mit einer Masse gefüllt, gegenüber dem das Kolbenmaterial nicht resistent ist. Der kreisringförmige Kolben 5 für die Kammer 2 besteht aus zwei Kolbenteilen. Das Kolbenteil 6 ist aus einem weichen elastischen Kunststoffmaterial 6 hergestellt, wobei dieses erste Kolbenteil abdichtend gegen die Innenwände 7 der Kartusche anliegt. Auf diesem Kolbenteil 6 ist an seiner der Füllmasse zugewandten Seite ein zweites Kolbenteil 8 angeordnet, das aus einem gegenüber der Füllmasse resistenten Kunststoifmaterial besteht. Das Material des ersten Kolbenteils 6 kann beispielsweise aus LDPE (Low Density Polyethylene) bestehen, während das zweite Kunststoffteil aus Polyamid besteht.A piston 4 is arranged at the lower end of the central chamber 1. This chamber 1 is filled with a mass that does not have an aggressive effect on the material of the piston 4. The ring chamber 2, on the other hand, is filled with a mass to which the piston material is not resistant. The circular piston 5 for the chamber 2 consists of two piston parts. The piston part 6 is made of a soft, elastic plastic material 6, with this first piston part sealingly resting against the inner walls 7 of the cartridge. On this piston part 6, on its side facing the filling mass, a second piston part 8 is arranged, which consists of a plastic material that is resistant to the filling mass. The material of the first piston part 6 can, for example, consist of LDPE (low density polyethylene), while the second plastic part consists of polyamide.
Una die beiden. Kolbenteile 6, 8 relativ zueinander zu fixieren, weist das erste Kolbenteil 6 drei in gleichmäßigen Abständigen verteilte Zentrierzapfen 9 auf, die jeweils eine Rastrille 10 besitzen. Das zweite Kolbenteil 8 ist mit einer zur Rastrille 10 konisch verlaufenden Bohrung 11 versehen, welche eine umlaufende Rastnase 12 bildet, die mit der Rastrille 10 verrastet.In order to fix the two piston parts 6, 8 relative to one another, the first piston part 6 has three centering pins 9 distributed at equal distances, each of which has a locking groove 10. The second piston part 8 is provided with a bore 11 that is conical to the locking groove 10 and forms a circumferential locking lug 12 that locks into the locking groove 10.
Zwischen den Zentrierzapfen 10 weist das erste Kolbenteil 6 eine erste Bohrung 13 auf. Am zweiten Kolbenteil 8 ist ein erster Zapfen 14 angeformt. Dieser erste Zapfen 14 weist an seiner dem ersten Kolbenteil 6 zugewandten Basis einen Dichtkonus 15 auf, der gegen den Rand der Bohrung 13 dichtend anliegt. An diesen Dichtkonus 15 schließt sich ein Zapfenteil 16 an, dessen Durchmesser geringer ist als derjenige der Bohrung 13. Dieses Zapfenteil 16 steht über den Boden 17 des ersten Kolbenteils 6 über.The first piston part 6 has a first bore 13 between the centering pins 10. A first pin 14 is formed on the second piston part 8. This first pin 14 has a sealing cone 15 on its base facing the first piston part 6, which seals against the edge of the bore 13. This sealing cone 15 is followed by a pin part 16, the diameter of which is smaller than that of the bore 13. This pin part 16 protrudes above the base 17 of the first piston part 6.
Die den Innenwänden 7 zugewandten Bereiche 18, 19 der beiden Kolbenteile 6, 8The areas 18, 19 of the two piston parts 6, 8 facing the inner walls 7
• · · I· · I
sind ineinandergreifend V-förmig ausgebildet. Diese Bereiche liegen somit elastisch federnd an den Innenwandungen 7 an. Das erste Kolbenteil 6 ist mit zwei umlaufenden ringförmigen Schultern 20, 21 versehen.are designed in an interlocking V-shape. These areas thus rest elastically against the inner walls 7. The first piston part 6 is provided with two circumferential annular shoulders 20, 21.
Nach dem Abfüllen der Füllmassen in die Kammern 1, 2 wird eine Hülse 22 gegen den Kolben 5 geführt, welcher gegen die Zapfen 14 anläuft. Hierdurch wird das Kolbenteil 8 gegen die Füllmasse gedruckt und dabei konvex deformiert. Die zwischen dem Kolbenteil 8 und der Füllmasse eingeschlossene Luft kann hierbei über die dünnen Dichtränder des Kolbenteils 8 in den Bereich zwischen den beiden Kolbenteilen 6, 8 entweichen und strömt dann über den gebildeten Durchgang zwischen der Bohrung 13 und dem Zapfen 14 ab. Wird die Hülse 22 entfernt, dann nimmt das Kolbenteil 8 seine ursprüngliche Gestalt an, womit die Bohrung 13 wiederum durch den Dichtkonus 15 verschlossen wird. Die Rückkehr zur ursprünglichen Form erfolgt aufgrund der Gestaltung des Kolbenteils 8 und wird begünstigt durch den Eingriff der Rastnase 12 in die Rastrille 10.After the filling compounds have been filled into the chambers 1, 2, a sleeve 22 is guided against the piston 5, which runs against the pins 14. As a result, the piston part 8 is pressed against the filling compound and is convexly deformed in the process. The air trapped between the piston part 8 and the filling compound can escape via the thin sealing edges of the piston part 8 into the area between the two piston parts 6, 8 and then flows out via the passage formed between the bore 13 and the pin 14. If the sleeve 22 is removed, the piston part 8 takes on its original shape, whereby the bore 13 is again closed by the sealing cone 15. The return to the original shape occurs due to the design of the piston part 8 and is facilitated by the engagement of the locking lug 12 in the locking groove 10.
Zum Ausdrücken der Füllmasse läuft der Ausdrückteller 23 einer Ausdrückpistole gegen die Schultern 20, 21 an, welche nach unten über den Boden 17 überstehen. Die Abdichtung zwischen dem Dichtkonus 15 und der Bohrung 13 bleibt hierbei erhalten.To squeeze out the filling compound, the squeeze plate 23 of a squeeze gun runs against the shoulders 20, 21, which protrude downwards over the base 17. The seal between the sealing cone 15 and the bore 13 is maintained.
Zusätzlich und benachbart der Bohrung 13 kann das erste Kolbenteil 6 einen weiteren Zapfen 24 aufweisen, der als Dichtkonus ausgebildet ist und welcher gegen eine konische Bohrung am Kolbenteil 8 anliegt. Dies stellt ein weiteres Ventil dar. Läuft die Hülse 22 gegen dien Zapfen 14 an, dann wird in vorbeschriebener Weise das Kolbenteil 8 konvex deformiert, wobei sich die Wandungen der konischen Bohrung 25 geringfügig vom Zapfen 24 abheben. Hierdurch kann die zwischen dem Kolbenteil 8 und der Füllmasse eingeschlossene Luft über den so gebildeten Spalt zwischen dem Zapfen 24 und der Bohrung 25 entweichen. Die Luft entweicht dann weiterhin über den Spalt zwischen dem Zapfen 14 und der Bohrung 13.In addition to and adjacent to the bore 13, the first piston part 6 can have another pin 24, which is designed as a sealing cone and which rests against a conical bore on the piston part 8. This represents another valve. If the sleeve 22 runs against the pin 14, the piston part 8 is convexly deformed in the manner described above, with the walls of the conical bore 25 lifting slightly from the pin 24. This allows the air trapped between the piston part 8 and the filling compound to escape via the gap thus formed between the pin 24 and the bore 25. The air then continues to escape via the gap between the pin 14 and the bore 13.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29506800U DE29506800U1 (en) | 1995-04-21 | 1995-04-21 | Venting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29506800U DE29506800U1 (en) | 1995-04-21 | 1995-04-21 | Venting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29506800U1 true DE29506800U1 (en) | 1996-08-29 |
Family
ID=8007161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29506800U Expired - Lifetime DE29506800U1 (en) | 1995-04-21 | 1995-04-21 | Venting device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29506800U1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001055006A1 (en) * | 2000-01-28 | 2001-08-02 | Sulzer Chemtech Ag | Cartridge piston |
| WO2001094028A1 (en) | 2000-06-09 | 2001-12-13 | Sulzer Chemtech Ag | Ventilation device for a piston for a cartridge |
| DE102008000841A1 (en) | 2008-03-26 | 2009-10-01 | Adcatec Gmbh | Cartridge and piston with ventilation device |
| EP2116484A1 (en) * | 2008-05-09 | 2009-11-11 | fischerwerke GmbH & Co. KG | Piston for a cartridge and cartridge |
| DE102006053453B4 (en) * | 2006-11-11 | 2010-05-06 | Kettenbach Gmbh & Co. Kg | Filled container with a piston and method for filling and venting a container |
| WO2011076663A1 (en) | 2009-12-22 | 2011-06-30 | Sulzer Mixpac Ag | Piston setting device, a system comprising such a device and method for setting a piston in a cartridge |
| USD657876S1 (en) | 2010-02-02 | 2012-04-17 | 3M Innovative Properties Company | Dental capsule |
| US9844796B2 (en) | 2005-10-14 | 2017-12-19 | 3M Innovative 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 |
| US11185391B2 (en) | 2016-09-21 | 2021-11-30 | 3M Innovative Properties Company | Mixer assembly and device for dispensing a dental material |
-
1995
- 1995-04-21 DE DE29506800U patent/DE29506800U1/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6494348B2 (en) | 2000-01-28 | 2002-12-17 | Sulzer Chemtech Ag | Cartridge piston |
| WO2001055006A1 (en) * | 2000-01-28 | 2001-08-02 | Sulzer Chemtech Ag | Cartridge piston |
| WO2001094028A1 (en) | 2000-06-09 | 2001-12-13 | Sulzer Chemtech Ag | Ventilation device for a piston for a cartridge |
| US10279935B2 (en) | 2005-10-14 | 2019-05-07 | 3M Innovative Properties Company | Plunger and plunger assembly for a cartridge, system for storing a substance, and method of filing and sealing a substance in a delivery system |
| US9844796B2 (en) | 2005-10-14 | 2017-12-19 | 3M Innovative 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 |
| DE102006053453B4 (en) * | 2006-11-11 | 2010-05-06 | Kettenbach Gmbh & Co. Kg | Filled container with a piston and method for filling and venting a container |
| US8678246B2 (en) | 2008-03-26 | 2014-03-25 | Adcatec Gmbh | Cartridge and piston with ventilation device |
| DE102008000841A1 (en) | 2008-03-26 | 2009-10-01 | Adcatec Gmbh | Cartridge and piston with ventilation device |
| DE102008000841B8 (en) | 2008-03-26 | 2014-07-10 | Adcatec Gmbh | Cartridge and piston with venting device |
| DE102008000841B4 (en) * | 2008-03-26 | 2014-04-30 | Adcatec Gmbh | Cartridge and piston with ventilation device |
| EP2116484A1 (en) * | 2008-05-09 | 2009-11-11 | fischerwerke GmbH & Co. KG | Piston for a cartridge and cartridge |
| US8511350B2 (en) | 2009-12-22 | 2013-08-20 | Sulzer Mixpac Ag | Piston setting device and method |
| CN102753441A (en) * | 2009-12-22 | 2012-10-24 | 苏舍米克斯帕克有限公司 | Piston setting device, a system comprising such a device and method for setting a piston in a cartridge |
| CN102753441B (en) * | 2009-12-22 | 2014-10-29 | 苏舍米克斯帕克有限公司 | Piston setting device, a system comprising such a device and method for setting a piston in a cartridge |
| WO2011076663A1 (en) | 2009-12-22 | 2011-06-30 | Sulzer Mixpac Ag | Piston setting device, a system comprising such a device and method for setting a piston in a cartridge |
| USD658763S1 (en) | 2010-02-02 | 2012-05-01 | 3M Innovative Properties Company | Dental capsule |
| USD657876S1 (en) | 2010-02-02 | 2012-04-17 | 3M Innovative Properties Company | Dental capsule |
| US11185391B2 (en) | 2016-09-21 | 2021-11-30 | 3M Innovative Properties Company | Mixer assembly and device for dispensing a dental material |
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Legal Events
| Date | Code | Title | Description |
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| R207 | Utility model specification |
Effective date: 19961010 |
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| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19980806 |
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| R081 | Change of applicant/patentee |
Owner name: SULZER CHEMTECH AG, CH Free format text: FORMER OWNER: PRESTELE, EUGEN, 86161 AUGSBURG, DE Effective date: 20010712 |
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| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20010731 |
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| R158 | Lapse of ip right after 8 years |
Effective date: 20031031 |