EP0344491A1 - Cartouche de distribution avec reservoir de stockage et piston d'expulsion - Google Patents

Cartouche de distribution avec reservoir de stockage et piston d'expulsion Download PDF

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Publication number
EP0344491A1
EP0344491A1 EP89108449A EP89108449A EP0344491A1 EP 0344491 A1 EP0344491 A1 EP 0344491A1 EP 89108449 A EP89108449 A EP 89108449A EP 89108449 A EP89108449 A EP 89108449A EP 0344491 A1 EP0344491 A1 EP 0344491A1
Authority
EP
European Patent Office
Prior art keywords
piston
screw
cartridge
filling
outside
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
EP89108449A
Other languages
German (de)
English (en)
Other versions
EP0344491B1 (fr
Inventor
Wilhelm A. Keller
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.)
KELLER, WILHELM A.
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0344491A1 publication Critical patent/EP0344491A1/fr
Application granted granted Critical
Publication of EP0344491B1 publication Critical patent/EP0344491B1/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
    • 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
    • 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
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • 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
    • B65D2205/00—Venting means
    • B65D2205/04—Venting means for venting during the initial insertion of a piston

Definitions

  • the invention relates to a discharge cartridge with a storage cylinder and sealingly displaceable delivery piston whose bottom surface facing the cartridge contents has radially extending, slot-shaped depressions which open into a closable vent hole leading from the center of the bottom surface to the outside.
  • Discharge cartridges with delivery pistons are used in a known manner to hold, store and process pasty to thin-bodied masses, which are usually conveyed by the plunger of a e.g. "Gun-shaped" discharge device - driven out through the cartridge mouth.
  • a e.g. "Gun-shaped" discharge device - driven out through the cartridge mouth When filling such cartridges, any air pockets inside the cylinders must be carefully avoided because they form an elastic "cushion" and thereby impair a precisely metered squeezing of the contents; Such air cushions are particularly disruptive when dispensing two-component masses from double cartridges, because the volume ratio between the components, which should exactly be observed, is then changed.
  • certain masses processed by means of discharge cartridges can tend to react with the moisture of the enclosed air during storage, as a result of which they harden prematurely and become unusable.
  • the object of the present invention is to design a discharge cartridge with a delivery piston in such a way that complete cylinder ventilation is ensured both with a low-viscosity as well as with a highly viscous filling compound, with a secure and permanent closure being achieved with little effort and also in automatic filling systems.
  • this object is achieved in that the aforementioned bottom surface of the dimensionally stable delivery plunger facing the cartridge contents is continuously deepened from the plunger edge to the vent hole and in that a plug screw sits in the vent hole, along the shaft of which at least one longitudinal groove runs in the bore, the longitudinal grooves being on the outside of the piston are surrounded by an annular sealing surface on the piston, which is intended as an axial seat for the screw head.
  • the filling process can be carried out reliably and unhindered in various common ways and with any filling materials. After filling and complete venting, all you need to do is tighten the screw against the sealing surface to create a secure, permanent seal.
  • a piston with a bottom surface recessed towards a central vent hole - but without radial depressions - is known in another context, namely in a so-called Dispenser for pasty masses (DE-OS 36 35 849). That piston, however, is not a delivery piston moved by external force, but only a displaceable closure member which follows the filling compound. The vent hole is also closed in this device by an axially press-fit plug.
  • the discharge cartridge 1 shown in FIG. 1 has a storage cylinder 3 with a mouth 4 and a dimensionally stable delivery piston 10 which can be moved and sealed in the cylinder 3.
  • An elastic ring seal 12 (so-called O-ring), which is inserted into an annular groove 11 of the delivery piston 10, expediently serves as the piston seal; however, an elastic sealing lip formed on the piston edge can also be provided, which rests against the inner wall of the cylinder 3 (not shown).
  • the cartridge content 2 is stored in the storage cylinder 3 and later pressed out through the mouth 4 when used. As can be seen from FIG.
  • the filling compound forms after filling, but before venting, in the case of a thin liquid a level surface 5 (dash-dotted lines), or in the case of a pasty mass it is delimited at the top by an irregular surface 6. It is important that regardless of the viscosity of the filling compound 2 or the shape of its surface, all air can escape under the bottom surface 13 of the piston 10.
  • This bottom surface 13 facing the cartridge content 2 is continuously deepened towards the center from the piston rim.
  • a vent hole 15 extends from the deepest point 14 of the bottom surface 13 (lying at the top in the illustrated position of the discharge cartridge), which leads through the piston to the outside.
  • this bore 15 there is a screw plug with shaft 16 and screw head 17. As shown, it can be a screw with a self-tapping thread and a Phillips head, and it can be tightened from the outside by means of a screwdriver 8.
  • the vent hole 15 has e.g. four longitudinal grooves 18, which run along the screw shaft 16, but outside the same.
  • the longitudinal grooves 18 are surrounded by an annular sealing surface 19 (e.g. an annular bead) on the outside of the piston 10, which is intended as an axial seat for the screw head 17.
  • the bottom surface 13 of the piston 10 then has a system of radially extending, slot-shaped depressions 20 which open at the vent hole 15 and thereby communicate with the longitudinal grooves 18 in this hole.
  • the piston 10 can expediently have a number of radial ribs 21 formed on the piston head 23. These form a recess 22 surrounding the sealing surface 19, which receives the screw head 17 when it is tightened.
  • the filling compound is introduced from below through the open mouth 4 and rises in the cylinder 3, while the delivery piston 10 is expediently still outside the cylinder.
  • the filling process comes to a standstill when a certain amount of the filling mass, measured by a metering device in the filling station (not shown), is in the cylinder 3, whereupon the mouth 4 is closed.
  • the delivery plunger 10 is then inserted into the cylinder 3 from above - preferably with a preassembled but not yet tightened screw 16, 17 (FIG. 1) - and pressed down against the filling compound 2 until all the air under the plunger passes through the Longitudinal grooves 18 has emerged.
  • the complete ventilation with full surface contact of the bottom surface 13 by the filling compound is clearly noticeable in the strongly increasing resistance to the pushing in of the piston at the moment when the filling compound is pressed through the narrow grooves 18, and finally can also be easily visually determined when the Mass begins to emerge from the grooves 18 above.
  • the screw is then tightened, the head 17 abutting the sealing surface 19 and closing all the longitudinal grooves 18.
  • the screw is tightened with only a small amount of force on the piston and without any significant volume displacement inside the cartridge.
  • the tightened screw forms a tight, reliably secured closure during distribution and storage of the filled cartridge.
  • the piston 10 is pushed through the plunger of a discharge device (not shown) and the contents are pressed out through the mouth 4, the countersunk screw head 17 (FIG. 3) remains unaffected by the mentioned plunger.
  • a filled liquid with a level surface 5 will hardly pose any difficulties in the present shape of the bottom surface 13: it will first touch the piston 10 at the edge and then continuously along the bottom surface 13 to the point 14 and then into the bore 15 penetrate while displacing the air.
  • a viscous filling compound 2 with a "heap-shaped", irregular surface 6, on the other hand will generally first touch the bottom surface 13 at other points (and often, as in the illustrated heap formation in a central area), air still being radially outside. In this case, the complete ventilation is still ensured thanks to the slot-shaped recesses 20.
  • This can be seen particularly from the greatly enlarged FIG. 5: thanks to the narrow, but relative deep cross section of the slots 20, "trapped" air located radially outside the contact points can nevertheless escape, since, according to FIG until the entire bottom surface 13 is touched by the filling compound.
  • the procedure can also be such that when the delivery piston 10 is not yet inserted into the cylinder 3, the contents of the cartridge are filled in from above in a measured amount (not shown).
  • the piston is then inserted into the cylinder 3 with the screw not yet or not fully screwed in and pressed against the filling compound 2.
  • the complete ventilation by pressing the piston 10 and the closing by tightening the screw is then carried out as described above.
  • the design of the delivery piston described allows particularly reliable and efficient venting of the cartridge cylinder after filling.
  • the processes of filling, venting and closing can also be automated without any particular difficulties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
EP89108449A 1988-06-03 1989-05-11 Cartouche de distribution avec reservoir de stockage et piston d'expulsion Expired - Lifetime EP0344491B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2110/88 1988-06-03
CH211088 1988-06-03

Publications (2)

Publication Number Publication Date
EP0344491A1 true EP0344491A1 (fr) 1989-12-06
EP0344491B1 EP0344491B1 (fr) 1992-12-23

Family

ID=4226108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108449A Expired - Lifetime EP0344491B1 (fr) 1988-06-03 1989-05-11 Cartouche de distribution avec reservoir de stockage et piston d'expulsion

Country Status (4)

Country Link
US (1) US4951848A (fr)
EP (1) EP0344491B1 (fr)
JP (1) JPH0631112B2 (fr)
DE (1) DE58903082D1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463991A1 (fr) * 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion
US5085350A (en) * 1990-03-16 1992-02-04 Kabushiki Kaisha Top Pump assembly with container for storing liquid in isolation from ambient air
EP0497739A2 (fr) * 1991-01-29 1992-08-05 Wilhelm A. Keller Cartouche de décharge avec cylindre de réserve et piston de convoyage
DE9315032U1 (de) * 1993-10-04 1994-01-27 Schneider, Falk Walter, 51580 Reichshof Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen
US5316186A (en) * 1991-08-26 1994-05-31 Eugen Prestele Fully dischargeable cartridge for paste-like substances
EP1514611A2 (fr) 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent
DE102008000841A1 (de) 2008-03-26 2009-10-01 Adcatec Gmbh Kartusche und Kolben mit Enlüftungsvorrichtung
WO2012055921A1 (fr) * 2010-10-26 2012-05-03 Kettenbach Gmbh & Co. Kg Piston et agencement de cartouche le comprenant
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

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2027786C (fr) * 1989-10-31 1997-01-28 Koichi Sugita Contenant muni d'une pompe
US5133485A (en) * 1991-02-27 1992-07-28 Shigeo Ohno Liquid food pot
US5248069A (en) * 1992-05-29 1993-09-28 International Business Machines Corporation Viscous fluid pressurizing apparatus
US5376414A (en) * 1993-06-01 1994-12-27 Sophia Systems Co., Ltd. Expansion compensated precision extrusion method
GB2278836B (en) * 1993-06-11 1996-10-23 Eurobond Adhesives Ltd Sealing plug
US5878922A (en) * 1997-07-09 1999-03-09 Sunoco Products Company Self venting plunger
JP3626367B2 (ja) * 1999-05-07 2005-03-09 武蔵エンジニアリング株式会社 液体ディスペンサーのシリンジ用プランジャー
CA2288170C (fr) * 1999-10-25 2004-01-13 Marcel Pineault Technique et outillage pour extrusion d'aliments
US6290105B1 (en) * 1999-11-08 2001-09-18 John Cosentino Variable volume storage device
DE20010417U1 (de) 2000-06-09 2001-10-11 Sulzer Chemtech Ag, Winterthur Entlüftungsvorrichtung bei einem Kolben für eine Kartusche
DE20117778U1 (de) * 2001-10-31 2003-03-20 Sulzer Chemtech Ag, Winterthur Kartuschenkolben mit Entlüftung
EP1461268A4 (fr) * 2001-12-10 2009-03-25 Tah Ind Inc Cartouche de distribution avec circuit d'aeration sinueux
US20050029306A1 (en) * 2002-12-06 2005-02-10 Brennan Robert Charles Dispensing cartridge with tortuous vent path
DE10342091A1 (de) * 2003-09-10 2005-04-28 Heraeus Kulzer Gmbh Kartusche mit entlüftbarem Kolben
EP1728560A1 (fr) * 2005-06-03 2006-12-06 3M Innovative Properties Company Système de stockage et de distribution d'une substance
US7621428B2 (en) * 2005-07-01 2009-11-24 Nordson Corporation Dispensing cartridge with vented piston
TWM287294U (en) * 2005-10-25 2006-02-11 Guo-Jung Fang Bottle with pumping device for shampoo, lotion, or the like
CN100354130C (zh) * 2006-01-11 2007-12-12 谭慈源 真空气动胶印油墨容器
US7767087B2 (en) 2007-01-05 2010-08-03 Wilson Kelce S Floating filter holder
US20100096404A1 (en) * 2008-10-17 2010-04-22 Melvin Seymour Cook Liquid distribution
US8466837B2 (en) * 2008-12-31 2013-06-18 Navcom Technology Inc. Hooked turnstile antenna for navigation and communication
CA2690171A1 (fr) * 2009-02-11 2010-08-11 Sulzer Mixpac Ag Piston de cartouche a event
USD657876S1 (en) 2010-02-02 2012-04-17 3M Innovative Properties Company Dental capsule
EP3575665B1 (fr) 2011-08-10 2020-10-07 Milwaukee Electric Tool Corporation Pistolet graisseur
US9016508B1 (en) 2012-11-05 2015-04-28 Joseph Paul Leighton Container with movable bottom plate
FR3016815B1 (fr) * 2014-01-30 2018-03-09 Lablabo Dispositif de conditionnement et de distribution de produits pateux
EP2987560A1 (fr) * 2014-08-21 2016-02-24 Sulzer Mixpac AG Appareil de distribution d'un ptoduit et procédé de remplissage de l'appareil par l'avant
IT201600080003A1 (it) * 2016-07-29 2018-01-29 Dropsa Spa Pompa dotata di un serbatoio di contenimento di lubrificante
EP3299082A1 (fr) 2016-09-21 2018-03-28 3M Innovative Properties Company Ensemble mélangeur et dispositif de distribution de matériau dentaire
DE202020103440U1 (de) * 2020-06-16 2020-06-22 Marc Rischewski Vorratsbehälter

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US2090018A (en) * 1933-10-02 1937-08-17 Armstrong Guy Edmund Container for viscous substances
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
US4146207A (en) * 1977-06-03 1979-03-27 Rofe Arthur D Metering drain plug
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

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US701671A (en) * 1901-08-03 1902-06-03 John A Billings Hypodermic syringe.
US1643531A (en) * 1926-11-15 1927-09-27 Wolf William Syringe for hypodermic needles or the like
US2893391A (en) * 1958-08-19 1959-07-07 Sinclair Res Lab Inc Injection apparatus
US4134523A (en) * 1977-05-09 1979-01-16 Southern Can Company Vented piston for barrier pressure containers
GB2072755B (en) * 1980-03-28 1984-02-01 Nat Res Dev Dispensing apparatus and method
JPS59153874U (ja) * 1983-03-30 1984-10-16 株式会社吉野工業所 クリ−ム状物収納容器
DE3405547A1 (de) * 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
DE3615659A1 (de) * 1986-05-09 1987-11-12 Hilti Ag Auspresskolben mit speicherkammer
AU609155B2 (en) * 1987-05-20 1991-04-26 Colgate-Palmolive Company, The Dispenser for products in paste form
US4819836A (en) * 1987-06-10 1989-04-11 Mega Plast Product- U. Verpackungsentwicklung Marketing Gesellschaft Mit Beschrankter Haftung & Co. Dispenser for dispensing paste compositions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090018A (en) * 1933-10-02 1937-08-17 Armstrong Guy Edmund Container for viscous substances
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
US4146207A (en) * 1977-06-03 1979-03-27 Rofe Arthur D Metering drain plug
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

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085350A (en) * 1990-03-16 1992-02-04 Kabushiki Kaisha Top Pump assembly with container for storing liquid in isolation from ambient air
EP0463991A1 (fr) * 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion
US5178305A (en) * 1990-06-21 1993-01-12 Keller Wilhelm A Dispensing cartridge with storage cylinder and dispensing piston having a closure sealed vent bore
EP0497739A2 (fr) * 1991-01-29 1992-08-05 Wilhelm A. Keller Cartouche de décharge avec cylindre de réserve et piston de convoyage
EP0497739A3 (en) * 1991-01-29 1993-03-10 Wilhelm A. Keller Dispensing cartridge with a supply cylinder and an expulsion piston
US5316186A (en) * 1991-08-26 1994-05-31 Eugen Prestele Fully dischargeable cartridge for paste-like substances
DE9315032U1 (de) * 1993-10-04 1994-01-27 Schneider, Falk Walter, 51580 Reichshof Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen
EP1514611A2 (fr) 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent
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
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
DE102008000841A1 (de) 2008-03-26 2009-10-01 Adcatec Gmbh Kartusche und Kolben mit Enlüftungsvorrichtung
DE102008000841B4 (de) * 2008-03-26 2014-04-30 Adcatec Gmbh Kartusche und Kolben mit Enlüftungsvorrichtung
WO2012055921A1 (fr) * 2010-10-26 2012-05-03 Kettenbach Gmbh & Co. Kg Piston et agencement de cartouche le comprenant
US9797511B2 (en) 2010-10-26 2017-10-24 Kettenbach Gmbh & Co Kg Piston and cartridge arrangement having said piston

Also Published As

Publication number Publication date
JPH0631112B2 (ja) 1994-04-27
EP0344491B1 (fr) 1992-12-23
JPH0232985A (ja) 1990-02-02
US4951848A (en) 1990-08-28
DE58903082D1 (de) 1993-02-04

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