EP0966331B1 - Kolben zum Einsetzen in eine gefüllte Kartusche - Google Patents
Kolben zum Einsetzen in eine gefüllte Kartusche Download PDFInfo
- Publication number
- EP0966331B1 EP0966331B1 EP98966418A EP98966418A EP0966331B1 EP 0966331 B1 EP0966331 B1 EP 0966331B1 EP 98966418 A EP98966418 A EP 98966418A EP 98966418 A EP98966418 A EP 98966418A EP 0966331 B1 EP0966331 B1 EP 0966331B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- air outlet
- outlet opening
- 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
Images
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
-
- 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
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0037—Containers
- B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
- B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
Definitions
- the invention relates to a Piston for insertion into a filled cartridge according to the preamble of claim 1
- This type of piston is e.g. known from EP 0 397 589 A1.
- vent valves on the piston which when the Pistons in the cartridge can be opened using a specially shaped plunger. This requires specially adapted ram and requires relatively narrow Manufacturing tolerances for the vent valves. These vent valves also have proven to be prone to failure.
- Inner cylinder has a pressure plate that can be displaced therein, with a plate that runs outdoors Vent opening. There is also one from the pressure plate in the inner cylinder separate, independent filter arrangement with one inside the inner cylinder slidable filter housing provided. The pressure plate and the separate filter arrangement form a piston with which the previously by pushing the inner cylinder into the Cartridge mixed components are pushed out of the cartridge.
- the Pressure plate forms the piston surface in which the opening to the outside Removal of the residual air located in the inner cylinder is arranged.
- a granulate syringe known from US Pat. No. 5,181,918 contains a cylindrical one Syringe housing, in which an consisting of a piston rod and a piston head Piston is inserted.
- the conical piston head rests on a porous one Plastic existing plug on when the plunger is pushed into the syringe housing is moved in the direction of the outlet opening of the syringe housing.
- the pore size of the Plug material is selected such that the plug is air-permeable, but one Prevents the granules from escaping from the syringe.
- the piston 1 is inserted into the open end of a cartridge 2, which was previously filled.
- the piston 1 has sealing lips 3, 4 at both ends, wherein the elasticity of the sealing lip 3 facing the cartridge 2 is achieved by a circumferential incision 5.
- a vent opening 7 is provided in the center, which extends to Piston underside extended.
- the vent opening is integrally formed on the piston 1 7 surrounding cylindrical pocket 8, which is open to the underside of the piston.
- a cylindrical micropore filter 9 is used. It is about a porous filter, as is known in medical technology for the filtration of liquids is.
- This micropore filter 9 preferably consists of a sintered material Plastic, for example made of PE or PTFE with a pore size of 10 ⁇ m to 80 microns.
- the sintered material has open pores.
- the pocket 8 can also be formed by the cylindrical wall 10 of the piston 1.
- FIG. 4 shows a section through an annular piston of a two-component coaxial cartridge.
- This piston has an open cylindrical pocket 8 provided that has a bottom 11 on its side facing away from the piston side, on which the ventilation opening 7 is formed.
- this pocket 8 it is Microporous filter 9 used.
- the piston 1 consists of a soft and non-resistant to the filling material not diffusion-tight plastic, then a thin one can be on the top of the piston Cover plate are attached, which are made from a filler material diffusion-tight and resistant to the filling material.
- This The cover panel is provided with a large number of small ventilation openings. In the case In the embodiment according to FIG. 4, this cover plate is ring-shaped. It protects not only the piston against the filling material, but also prevents the filter 9 comes into direct contact with the filling material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Arc Welding In General (AREA)
- External Artificial Organs (AREA)
- Massaging Devices (AREA)
- Compressor (AREA)
Abstract
Description
- Fig. 1
- einen Schnitt durch das offene Kartuschenende und durch einen Kolben;
- Fig. 2
- eine Draufsicht auf diesen Kolben;
- Fig. 3
- eine Seitenansicht und eine Draufsicht auf das Mikroporenfilter; und
- Fig. 4
- einen Schnitt durch einen Ringkolben für eine Zweikomponenten-Kartusche.
Claims (6)
- Kolben zum Einsetzen in eine gefüllte Kartusche (2) mit mindestens einer von der Kolbenoberfläche (6) ins Freie verlaufenden Entlüftungsöffnung (7), einer an der Kolbenoberfläche (6) im Bereich der Entlüftungsöffnung (7) angeformten Tasche (8) und einem in der Tasche (8) angeordneten Filter (9), durch das die Entlüftungsöffnung (7) abgedeckt ist, dadurch gekennzeichnet, daß das Filter (9) ein aus einem Kunststoffsintermaterial bestehendes offenporiges Mikroporenfilter mit einer Porengröße zwischen 10 und 80 µm ist, das ein Entweichen der Restluft ermöglicht, jedoch einen Austritt des in die Kartusche (2) eingefüllten Mediums über die Entlüftungsöffnung (7) verhindert.
- Kolben nach Anspruch 1, dadurch gekennzeichnet, daß die Tasche (8) zylindrisch ausgebildet und zur Kolbenunterseite hin offen ist.
- Kolben nach Anspruch 1, dadurch gekennzeichnet, daß die Tasche (8) zylindrisch ausgebildet ist, zur Kolbenoberseite hin offen ist und an der der Kolbenoberseite hin abgewandten Seite einen Boden (11) mit der Entlüftungsöffnung (7) aufweist.
- Kolben nach Anspruch 1, dadurch gekennzeichnet, daß die Tasche (8) von der Kolbenwand (10) gebildet wird.
- Kolben nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Kunststoffsintermaterial aus PE bzw. PTFE besteht.
- Kolben nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Kolbenoberseite von einer dünnen, eine Vielzahl von kleinen Entlüftungsöffnungen aufweisenden Abdeckscheibe abgedeckt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29800594U DE29800594U1 (de) | 1998-01-15 | 1998-01-15 | Entlüftungsvorrichtung |
DE29800594U | 1998-01-15 | ||
PCT/EP1998/008502 WO1999036188A1 (de) | 1998-01-15 | 1998-12-28 | Entlüftungsvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0966331A1 EP0966331A1 (de) | 1999-12-29 |
EP0966331B1 true EP0966331B1 (de) | 2002-08-21 |
Family
ID=8051282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966418A Expired - Lifetime EP0966331B1 (de) | 1998-01-15 | 1998-12-28 | Kolben zum Einsetzen in eine gefüllte Kartusche |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0966331B1 (de) |
DE (2) | DE29800594U1 (de) |
WO (1) | WO1999036188A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD657876S1 (en) | 2010-02-02 | 2012-04-17 | 3M Innovative Properties Company | Dental capsule |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29913396U1 (de) * | 1999-07-31 | 2000-01-20 | Prestele, Eugen, 86179 Augsburg | Kolben für eine Kartusche |
DE20010417U1 (de) | 2000-06-09 | 2001-10-11 | Sulzer Chemtech Ag, Winterthur | Entlüftungsvorrichtung bei einem Kolben für eine Kartusche |
DE20103911U1 (de) * | 2001-03-06 | 2002-07-11 | Alusuisse Bayrisches Druckguß-Werk GmbH & Co. KG, 85570 Markt Schwaben | Dichtmittelbehälter |
DE20117778U1 (de) | 2001-10-31 | 2003-03-20 | Sulzer Chemtech Ag, Winterthur | Kartuschenkolben mit Entlüftung |
DE10235599A1 (de) * | 2002-08-02 | 2004-02-19 | Ritter Gmbh | Kolben mit Entlüftung für Kartuschen zur Aufnahme und Abgabe plastischer Massen |
CA2625259C (en) | 2005-10-14 | 2017-01-03 | 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 |
US8511350B2 (en) | 2009-12-22 | 2013-08-20 | Sulzer Mixpac Ag | Piston setting device and method |
EP3299082A1 (de) | 2016-09-21 | 2018-03-28 | 3M Innovative Properties Company | Mischeranordnung und vorrichtung zur ausgabe eines zahnmaterials |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405249A (en) * | 1980-03-28 | 1983-09-20 | National Research Development Corporation | Dispensing apparatus and method |
DK235589D0 (da) * | 1989-05-12 | 1989-05-12 | Wolff & Kaaber | Fremgangsmaade og indretning til blanding af en fast og en flydende komponent |
DE9011685U1 (de) * | 1990-08-10 | 1991-12-12 | THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld | Granulatspritze |
JP2905325B2 (ja) * | 1991-11-21 | 1999-06-14 | 東レ・ダウコーニング・シリコーン株式会社 | シーラント用カートリッジ |
-
1998
- 1998-01-15 DE DE29800594U patent/DE29800594U1/de not_active Expired - Lifetime
- 1998-12-28 DE DE59805244T patent/DE59805244D1/de not_active Expired - Lifetime
- 1998-12-28 WO PCT/EP1998/008502 patent/WO1999036188A1/de active IP Right Grant
- 1998-12-28 EP EP98966418A patent/EP0966331B1/de not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD657876S1 (en) | 2010-02-02 | 2012-04-17 | 3M Innovative Properties Company | Dental capsule |
USD658763S1 (en) | 2010-02-02 | 2012-05-01 | 3M Innovative Properties Company | Dental capsule |
Also Published As
Publication number | Publication date |
---|---|
EP0966331A1 (de) | 1999-12-29 |
DE29800594U1 (de) | 1998-03-26 |
WO1999036188A1 (de) | 1999-07-22 |
DE59805244D1 (de) | 2002-09-26 |
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