EP1514611A2 - Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent - Google Patents

Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent Download PDF

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Publication number
EP1514611A2
EP1514611A2 EP04020848A EP04020848A EP1514611A2 EP 1514611 A2 EP1514611 A2 EP 1514611A2 EP 04020848 A EP04020848 A EP 04020848A EP 04020848 A EP04020848 A EP 04020848A EP 1514611 A2 EP1514611 A2 EP 1514611A2
Authority
EP
European Patent Office
Prior art keywords
piston
sealing
cartridge
sealing piston
expansion
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.)
Granted
Application number
EP04020848A
Other languages
German (de)
English (en)
Other versions
EP1514611A3 (fr
EP1514611B1 (fr
Inventor
Klaus Nehren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kulzer GmbH
Original Assignee
Heraeus Kulzer GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heraeus Kulzer GmbH filed Critical Heraeus Kulzer GmbH
Publication of EP1514611A2 publication Critical patent/EP1514611A2/fr
Publication of EP1514611A3 publication Critical patent/EP1514611A3/fr
Application granted granted Critical
Publication of EP1514611B1 publication Critical patent/EP1514611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to cartridges for receiving pasty material.
  • cartridges for receiving pasty material.
  • Adhesives and sealants as well as for printing inks are also dental impression materials in plastic or Aluminum cartridges offered. Many of these products are stored in the cartridge when stored damaged or have only a short shelf life due to introduced air bubbles or diffusion through the packaging.
  • the air bubbles in the cartridge arise when the piston is filled in the cartridge opening is used. Since the pistons have a sealing function to the cartridge wall must, at least partially with the air cushion located between product and piston locked in. For moisture-sensitive products, it may be at the edges of air pockets come to curing.
  • Another problem for some products is the escape of ingredients or penetration moisture or other air components.
  • DE 100 29 799 A1 relates to a cartridge piston, in which the piston shoulder by delivery pressure the dispensing device to a molded in the piston spreader sealing the Press cartridge wall.
  • DE 42 29 588 A1 describes a cartridge piston with elastic Piston bottom and a Endwulst whose outer diameter is greater than the inner diameter the cartouche.
  • EP 0 301 327 B1 (DE 8710233 U1) describes a cartridge piston described, in which the piston shoulder by a sprayed on one in the piston Sp Dahlring clamped insertable reinforcing ring sealing to the cartridge wall presses.
  • DE 34 05 547 (EP 0 152 373) discloses a piston with a cartridge wall obliquely extending annular groove, in which an elastic sealing ring is inserted.
  • DE 34 35 576 is about a follower piston for a dispenser with a closable vent.
  • DE 36 35 849 A1 describes a ventable piston for dispensers with a molded Closing part.
  • a ventable piston with self-locking stopper presented in WO 90/05096, a ventable piston with self-locking stopper presented in DE 23 02 364 A1 has a ventable piston for cartridges with an im centric seated venting channel included molded plugs to the subject.
  • EP 1 209 098 A1 relates to a cartridge with pistons for processing tubular bags in usual discharge pistols.
  • EP 281 755 B1 (US 4,834,268), the piston has a Ring groove in which an elastic sealing ring is embedded.
  • EP 344 491 B1 describes cartridges with a piston, a sealing ring and a screw to be closed Vent bore leading radial venting channels has.
  • EP 463 991 B1 relates to cartridges with a piston, a sealing ring and a vent hole with plug has leading radial venting channels.
  • EP 497 739 B1 (similar to US Pat. No. 5,400,926) recommends cartridges with a piston, a sealing ring and a vent hole with plug has leading radial venting channels, wherein before the sealing ring still sealing lips are arranged, the circumferential groove opens into the ventilation channels.
  • DE 196 43 506 A1 the piston of a dispensing device for pressure relief after delivery is designed in two parts.
  • DE 197 14 331 A1 describes a cartridge piston, the radially extending channels or has grooves between the central vent hole and piston edge.
  • the object of the invention is therefore to provide cartridges, which in the filling without air pockets can be processed, allow a very simple and fast filling, offer good barrier properties against moisture, and high mechanical strength do not have to deform under delivery pressure.
  • the cartouche can be designed as a double or multiple cartridge.
  • the main feature of the piston are its two-part form of sealing and expansion piston with by the spreader piston closable vents.
  • the sealing piston is essentially elastically deformable or its material yields.
  • a relatively thin-walled sealing piston made of elastic or plastic material such as PE-LD, PE-HD, PP or TPE or Blends as plastic injection molding easy and inexpensive to manufacture. But they are also suitable PTFE or various types of rubber, but do not process by injection molding and therefore more expensive to manufacture. The material selection can be due to incompatibility be limited with the product.
  • expansion piston of a less flexible and much harder material provide.
  • the expansion piston is substantially rigid.
  • PP PE-HD, PA, POM a material with the required mechanical strength and barrier effect be selected for the injection molding technology.
  • metals such as aluminum or Steel is conceivable, but more expensive.
  • the expansion piston exerts radially outward forces, which the sealing piston stronger to the cylindrical Press the inner wall of the cartridge. This is e.g. to solve constructively by the expansion piston in the sealing piston is einpressbar, and in several places larger dimensions than can accommodate the corresponding cavity of the sealing piston. This causes outward directed Compressive forces. Preferably, the bouncing of the expansion piston in the sealing piston, so that a stuck connection is ensteht. This is easy to accomplish by locking means.
  • resulting air pressure is possibly through openings in the expansion piston dissipate.
  • the air pressure can also increase the pressure forces on the cavity be used of the sealing piston.
  • the sealing piston is advantageously already designed so that it is essentially in sliding connection with the cylinder wall, but still vents, usually in a ring shape along the cylinder wall, leaves free. These vents are closed after pressing in the expansion piston. It is an advantage Also, if the sealing piston on the side facing the filling material convex or conical is. As a result, the displaced during filling air is directed to the vents.
  • the sealing piston 1 is hollow from the rear, has a plurality of circumferential rings 6, 7, 8 for sealing and stripping of the product 4 and is at all points in the diameter slightly smaller than the inner diameter of the cartridge tube third
  • the expansion piston 2 is advantageously shaped so that it can be bounced into the sealing piston 1 , rests on a bead 10 as possible on the upper sealing piston edge 8 to penetrate only slightly into the sealing piston, but until it is inserted into the cartridge by a front Bead 18 to be held in it.
  • the expansion piston 2 may have rings 11 and / or radially extending struts 16 in the cavity which may extend from the bottom 9 to the edge 17 .
  • Sealing and expansion pistons 1 + 2 are already used pre-assembled in the filling, the time and mechanical complexity, which is equivalent to a one-piece piston.
  • the sealing piston 1 has a bottom 5 which is arched or sharpened in the product-contacting direction in order to establish contact with the product first in the center of the cartridge tube 3 . Since the piston crown edge 6 and all subsequent sealing rings 7/8 have a slightly smaller diameter than the cartridge tube 3 inside, the remaining air 20 is displaced by the product 4 during further insertion. Only when the product 4 fills the thin gap between the cartridge wall 3 and piston bottom edge 6 increases suddenly the force to push the piston further.
  • the expansion piston 2 is pressed until it stops in the sealing piston 1 , wherein the sealing rings 6/7 of the sealing piston 1 expand to the cartridge wall 3 and its bottom 5 applies by stretching to the bottom 9 of the expansion piston 2 .
  • the locking means 21 By the locking means 21 , this position is maintained.
  • a barrier film 14 of eg aluminum or EVOH can be inserted into the sealing piston 1 during the prefabrication of the piston combination ( 1 + 2 ).
  • the barrier property can be further improved.
  • the film is provided on the inside of the sealing piston and remains after insertion and locking of the expansion piston between spreading and sealing piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Braking Arrangements (AREA)
  • Actuator (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Package Specialized In Special Use (AREA)
  • Coating Apparatus (AREA)
EP04020848A 2003-09-10 2004-09-02 Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent Expired - Lifetime EP1514611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10342090 2003-09-10
DE10342090A DE10342090B4 (de) 2003-09-10 2003-09-10 Verschlusskolben für Kartuschen mit Entlüftung und Barriereeigenschaften

Publications (3)

Publication Number Publication Date
EP1514611A2 true EP1514611A2 (fr) 2005-03-16
EP1514611A3 EP1514611A3 (fr) 2007-12-26
EP1514611B1 EP1514611B1 (fr) 2009-12-09

Family

ID=34129767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04020848A Expired - Lifetime EP1514611B1 (fr) 2003-09-10 2004-09-02 Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent

Country Status (5)

Country Link
US (1) US7353972B2 (fr)
EP (1) EP1514611B1 (fr)
JP (1) JP2005082245A (fr)
AT (1) ATE451183T1 (fr)
DE (2) DE10342090B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009068310A1 (fr) * 2007-11-28 2009-06-04 Inatec Gmbh Générateur de colle à chaud
WO2020155658A1 (fr) * 2019-02-01 2020-08-06 丁要武 Dispositif de distribution

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008000841B8 (de) * 2008-03-26 2014-07-10 Adcatec Gmbh Kartusche und Kolben mit Entlüftungsvorrichtung
DE102008022999A1 (de) * 2008-05-09 2009-11-12 Fischerwerke Gmbh & Co. Kg Kolben für eine Kartusche und Kartusche
DE102008063502A1 (de) * 2008-12-17 2010-06-24 Fischbach Kg Kunststoff-Technik Auspresswerkzeug
ES2445530T3 (es) * 2009-06-18 2014-03-03 Sulzer Mixpac Ag Cartucho de varios componentes con un dispositivo de ventilación
EP2794119B1 (fr) * 2011-10-17 2018-01-24 Sulzer Mixpac AG Cartouche, procédé de fabrication de celle-ci, ainsi que cartouche à plusieurs composants
KR102023143B1 (ko) * 2012-11-08 2019-09-19 술저 믹스팩 아게 2개 이상의 유동성 성분을 위한 카트리지
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

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302364A1 (de) 1973-01-18 1974-09-05 Fischbach A Kunststoff Kg Als ausdrueckkolben fuer plastische masse dienender verschluss aus elastischem werkstoff fuer einen hohlzylindrischen strangpressbehaelter
EP0081145A1 (fr) 1981-12-08 1983-06-15 Alfred Fischbach Kunststoffspritzgusswerk Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression
DE3405547A1 (de) 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
DE3435576A1 (de) 1984-09-27 1986-04-10 Josef Wischerath GmbH & Co KG, 5000 Köln Spender fuer pastoese produkte
DE8710233U1 (de) 1987-07-25 1987-11-05 Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen Kartuschenkolben
DE3635849A1 (de) 1986-10-22 1988-04-28 Mega Prod Verpack Marketing Spender
US4834268A (en) 1987-02-13 1989-05-30 Keller Wilhelm A Dispensing cartridge with delivery piston
EP0344491A1 (fr) 1988-06-03 1989-12-06 Wilhelm A. Keller Cartouche de distribution avec reservoir de stockage et piston d'expulsion
WO1990005096A1 (fr) 1988-10-31 1990-05-17 Uni-Continental Holdings Ltd. Dispositif d'etancheite pour un distributeur d'adhesif
EP0463991A1 (fr) 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion
EP0497739A2 (fr) 1991-01-29 1992-08-05 Wilhelm A. Keller Cartouche de décharge avec cylindre de réserve et piston de convoyage
DE4229588A1 (de) 1992-09-04 1994-03-10 Alfred Fischbach Kunststoff Sp Kartusche für pastöse Massen
DE19643506A1 (de) 1996-10-22 1998-04-23 Fischbach A Kunststoff Kg Kartusche und Auspreßwerkzeug hierfür
DE19714331A1 (de) 1996-11-12 1998-05-14 Ritter Frank Ausdrückkolben für Kartuschen zur Aufnahme plastischer Massen
DE10029799A1 (de) 2000-06-16 2001-12-20 Fischbach A Kunststoff Kg Kartusche
EP1209098A1 (fr) 2000-11-21 2002-05-29 Exchem Plc Cartouche pour dispositif distributeur réutilisable

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028052A (en) * 1959-06-01 1962-04-03 John E Archer Mold-filling device
CA2027786C (fr) * 1989-10-31 1997-01-28 Koichi Sugita Contenant muni d'une pompe
DE4026626A1 (de) * 1990-08-23 1992-02-27 Bosch Gmbh Robert Verfahren zur regelung der fahrzeugdynamik
US5295615A (en) * 1992-09-30 1994-03-22 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Refillable pump dispensing container
GB9320257D0 (en) * 1993-10-01 1993-11-17 Rocep Lusol Holdings A container for dispensing a product
US9509785B2 (en) * 2014-07-16 2016-11-29 Aruba Networks, Inc. Location approximation and discovery of wired servers

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302364A1 (de) 1973-01-18 1974-09-05 Fischbach A Kunststoff Kg Als ausdrueckkolben fuer plastische masse dienender verschluss aus elastischem werkstoff fuer einen hohlzylindrischen strangpressbehaelter
EP0081145A1 (fr) 1981-12-08 1983-06-15 Alfred Fischbach Kunststoffspritzgusswerk Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression
US4452370A (en) 1981-12-08 1984-06-05 Alfred Fischbach Kg Kunststoff-Spritzgusswerk Bottom closure for container
DE3405547A1 (de) 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
EP0152373A2 (fr) 1984-02-16 1985-08-21 HILTI Aktiengesellschaft Piston de pression pour récipients
DE3435576A1 (de) 1984-09-27 1986-04-10 Josef Wischerath GmbH & Co KG, 5000 Köln Spender fuer pastoese produkte
DE3635849A1 (de) 1986-10-22 1988-04-28 Mega Prod Verpack Marketing Spender
US4834268A (en) 1987-02-13 1989-05-30 Keller Wilhelm A Dispensing cartridge with delivery piston
EP0281755B1 (fr) 1987-02-13 1990-11-07 Wilhelm A. Keller Cartouche-distributrice à piston refoulant
DE8710233U1 (de) 1987-07-25 1987-11-05 Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen Kartuschenkolben
EP0301327A2 (fr) 1987-07-25 1989-02-01 Alfred Fischbach Kunststoffspritzgusswerk Piston pour cartouche
EP0301327B1 (fr) 1987-07-25 1992-06-17 Alfred Fischbach Kunststoffspritzgusswerk Piston pour cartouche
EP0344491B1 (fr) 1988-06-03 1992-12-23 Wilhelm A. Keller Cartouche de distribution avec reservoir de stockage et piston d'expulsion
EP0344491A1 (fr) 1988-06-03 1989-12-06 Wilhelm A. Keller Cartouche de distribution avec reservoir de stockage et piston d'expulsion
WO1990005096A1 (fr) 1988-10-31 1990-05-17 Uni-Continental Holdings Ltd. Dispositif d'etancheite pour un distributeur d'adhesif
EP0463991A1 (fr) 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion
EP0463991B1 (fr) 1990-06-21 1994-11-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion
EP0497739A2 (fr) 1991-01-29 1992-08-05 Wilhelm A. Keller Cartouche de décharge avec cylindre de réserve et piston de convoyage
US5400926A (en) 1991-01-29 1995-03-28 Keller; Wilhelm A. Dispensing cartridge with storage cylinder and feeding piston
EP0497739B1 (fr) 1991-01-29 1996-10-09 Wilhelm A. Keller Cartouche de décharge avec cylindre de réserve et piston de convoyage
DE4229588A1 (de) 1992-09-04 1994-03-10 Alfred Fischbach Kunststoff Sp Kartusche für pastöse Massen
DE19643506A1 (de) 1996-10-22 1998-04-23 Fischbach A Kunststoff Kg Kartusche und Auspreßwerkzeug hierfür
DE19714331A1 (de) 1996-11-12 1998-05-14 Ritter Frank Ausdrückkolben für Kartuschen zur Aufnahme plastischer Massen
DE10029799A1 (de) 2000-06-16 2001-12-20 Fischbach A Kunststoff Kg Kartusche
EP1209098A1 (fr) 2000-11-21 2002-05-29 Exchem Plc Cartouche pour dispositif distributeur réutilisable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009068310A1 (fr) * 2007-11-28 2009-06-04 Inatec Gmbh Générateur de colle à chaud
US8833610B2 (en) 2007-11-28 2014-09-16 Illinois Tool Works, Inc. Melting system for bags
WO2020155658A1 (fr) * 2019-02-01 2020-08-06 丁要武 Dispositif de distribution

Also Published As

Publication number Publication date
ATE451183T1 (de) 2009-12-15
DE10342090A1 (de) 2005-04-28
DE10342090B4 (de) 2007-06-06
EP1514611A3 (fr) 2007-12-26
US7353972B2 (en) 2008-04-08
JP2005082245A (ja) 2005-03-31
US20050087565A1 (en) 2005-04-28
EP1514611B1 (fr) 2009-12-09
DE502004010477D1 (de) 2010-01-21

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