EP0081145A1 - Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression - Google Patents

Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression Download PDF

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Publication number
EP0081145A1
EP0081145A1 EP82110865A EP82110865A EP0081145A1 EP 0081145 A1 EP0081145 A1 EP 0081145A1 EP 82110865 A EP82110865 A EP 82110865A EP 82110865 A EP82110865 A EP 82110865A EP 0081145 A1 EP0081145 A1 EP 0081145A1
Authority
EP
European Patent Office
Prior art keywords
cover element
closure
edge
bottom closure
plastic
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
EP82110865A
Other languages
German (de)
English (en)
Other versions
EP0081145B1 (fr
Inventor
Gert Langensiepen
Werner Brüning
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.)
Alfred Fischbach KG Kunststoff Spritzgusswerk
Original Assignee
Alfred Fischbach KG Kunststoff Spritzgusswerk
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6148148&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0081145(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alfred Fischbach KG Kunststoff Spritzgusswerk filed Critical Alfred Fischbach KG Kunststoff Spritzgusswerk
Priority to AT82110865T priority Critical patent/ATE15354T1/de
Publication of EP0081145A1 publication Critical patent/EP0081145A1/fr
Application granted granted Critical
Publication of EP0081145B1 publication Critical patent/EP0081145B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to a bottom cap made of elastic plastic and serving as a push-out piston for viscous plastic masses, for a hollow cylindrical extrusion container, in particular for a cartridge, with a closure plate directed towards the storage space of the extrusion container and with a hollow piston which extends to the filling opening of the extrusion container and leads to the inside wall section at least one elastic sealing lip which is formed from its material and surrounds its outer wall and lies against the inner wall of the container.
  • the invention has for its object to achieve by a further embodiment of the bottom closure of the type specified that at the same time on the one hand the necessary elasticity for the functionality of the bottom closure and on the other hand on the surfaces located to the storage room of the extrusion container, the required durability and diffusion tightness are guaranteed.
  • the aim is to achieve a simple design that is favorable for plastic molding and to promote the function of the entire floor closure. All in all, the universal closure of the base closure should be made as universal as possible, even for masses that deliver aggressive or volatile constituents, as well as use with different types of loading of the base closure in its function as a push-out piston.
  • the cover element and the rest of the bottom closure with the closure plate, hollow piston portion and sealing lip or lips can be molded as simple components from the respective material or plastic, in particular in the case of plastic, and can be easily and simply placed on the closure plate by simply placing the cover element easily connect with each other, the abutting edges ensuring the necessary locking of the cover element in the longitudinal direction of the bottom closure.
  • the cover element can be formed from a suitable plastic or a suitable metallic material, for example from aluminum or alloy.
  • the bottom closure designed according to the invention can be in its other forms on the inside of the closure plates are provided with the ring stop and the projecting ring lip according to DE-PS 20 34 047 and with the sealing lips designed according to DE-OS 30 05 855. If the bottom lock is actuated as a push-out piston with a mechanical piston, the outer edge of the cover element takes over the effect of the front drawer lip, i.e. the wiping and sealing effect. If the bottom lock acts as a push-out piston with the aid of a pressure medium, the sealing lips take over the circumference of the Hollow piston section the necessary seal.
  • the simple lid element in accordance with the design of the bottom closure in accordance with the invention promotes the usability of this bottom closure very extraordinarily and, in particular if the bottom closure is fully functional, a secure seal to the storage space of the extrusion container corresponding to the properties of the enclosed mass is achieved, the described above
  • the plastic of the cover element can be selected according to the particular requirements of the enclosed mass, in particular a gas diffusion-tight plastic can be used.
  • the cover element consists of a stiffer material, in particular plastic, than the plastic of the rest of the bottom closure, that is to say the closure plate and the hollow piston section with its sealing lip or lips. This allows a particularly high elasticity of the rest of the bottom closure to be selected in order to perform the functions described ensure, and because of its rigidity, the closure element can be used as a securely closing and stripping front element of the bottom closure or ejection piston.
  • the following advantage is achieved by this embodiment of the invention: If, when using the extrusion container after a previous application of the bottom closure as a push-out piston, this exposure is interrupted, then in the known bottom closures an undesired running-on of the expressed mass generally occurs because within the Extrusion container builds up pressure due to its always given flexibility. If a bottom closure according to the described embodiment according to the invention is used, it has been found that after removing the actuation pressure from the bottom closure, this pressure, which may build up in the extrusion container, can be reduced by retreating the more elastic bottom closure part with a stiffer cover element. This avoids the disadvantageous run-on of mass.
  • the circumferential edge of the cover element and the outer edge of the closure plate are shaped such that they complement one another such that the edge of the cover element engages behind the outer edge of the closure plate in a snap-locking manner.
  • a joining of the cover element and the closure plate with the hollow piston section is thus possible in a very simple manner with simultaneous secure locking of the cover element on the edge of the closure plate.
  • Both components of the bottom closure are designed to be extremely simple and can be produced in a simple manner from the respective plastic.
  • Cover element made of polyamide and the rest of the bottom closure that is to say the closure plate and the hollow piston section with its sealing lip or lips, are formed from polyethylene or polypropylene.
  • the polyamide of the cover element has a high chemical resistance and in particular a high gas diffusion tightness, while the polyethylene or polypropylene ensures the high, functional elasticity of the rest of the bottom closure.
  • the bottom closure shown in the drawing has a closure plate 1 directed towards the storage space of the extrusion container and bulging in this direction, as well as a hollow piston section 2 which extends to the filling opening of the extrusion container and which, as can be seen from FIGS. 3 and 4, on the inner wall of the extrusion container 3 is led.
  • a hollow piston section 2 On the hollow piston section 2, its outer wall is also elastic sealing lips 4 are provided, which are shaped according to the design according to DE-OS 30 05 855.
  • an annular lip 5 projecting toward the open side of the hollow piston section is arranged within the hollow piston section 2 and immediately following the inner wall of the closure plate 1, and the closure plate 1 carries on its wall located inside the hollow piston section 2 a ring stop 6 which is set back relative to the ring lip.
  • This described part of the bottom closure with its described parts 1 to 6 is formed in one piece from an elastic plastic, preferably from polyethylene or polypropylene.
  • a cover element 7 is placed which follows the contour of the closure plate 1.
  • This cover element 7 engages with a peripheral edge 8 facing the hollow piston section 2 the outer edge 9 of the closure plate 1 and is locked thereon in the longitudinal direction.
  • the peripheral edge 8 of the cover element 7 and the outer closure plate edge 9 are shaped so as to be complementary to one another that the edge 8 of the cover element engages behind the outer closure plate edge 9 in a snap-locking manner.
  • the outer sealing plate edge 9 has a circumferential annular groove 10 and the edge 8 of the cover element 7 has an inwardly projecting collar 11 which snaps into the groove 10 when the cover element 7 is placed on.
  • the cover element 7 is formed in one piece from such a material, the properties of which are selected in accordance with the mass to be enclosed in the extrusion container.
  • a gas diffusion and chemically resistant plastic selected, which has a higher rigidity than the plastic of the other bottom closure part 1 to 6 with sufficient elasticity
  • the cover element 7 is formed with its edge 8 made of polyamide, especially if the remaining part 1 to 6 of the bottom closure made of polyethylene or Polypropylene.
  • the wall thicknesses of the bottom closure parts 1 to 6 and the cover element 7, 8 can be coordinated with one another in such a way that the respective stiffnesses or elasticities for the functional effect are achieved.
  • the wall thickness of the cover element 7 can be chosen to be so thin that the described spreading effect is reliably achieved when subjected to mechanical loads.
  • the design of the sealing plate, the hollow piston section and the sealing lips as well as their number and the plastic of this component can be selected depending on the desired ventilation and sealing effects and according to the shape and dimensions of the extrusion container and depending on the mass to be filled.
  • the corresponding design of the cover element and its material is then determined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Telephonic Communication Services (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Centrifugal Separators (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Coating Apparatus (AREA)
  • Tubes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP82110865A 1981-12-08 1982-11-24 Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression Expired EP0081145B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110865T ATE15354T1 (de) 1981-12-08 1982-11-24 Bodenverschluss fuer einen hohlzylindrischen strangpressbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148490A DE3148490C2 (de) 1981-12-08 1981-12-08 Bodenverschluß für einen hohlzylindrischen Strangpreßbehälter
DE3148490 1981-12-08

Publications (2)

Publication Number Publication Date
EP0081145A1 true EP0081145A1 (fr) 1983-06-15
EP0081145B1 EP0081145B1 (fr) 1985-09-04

Family

ID=6148148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110865A Expired EP0081145B1 (fr) 1981-12-08 1982-11-24 Fermeture d'extrémité pour récipient creux cylindrique à extrusion par pression

Country Status (9)

Country Link
US (1) US4452370A (fr)
EP (1) EP0081145B1 (fr)
AT (1) ATE15354T1 (fr)
DE (2) DE3148490C2 (fr)
DK (1) DK157316C (fr)
ES (1) ES269032Y (fr)
FI (1) FI76986C (fr)
IE (1) IE53921B1 (fr)
PT (1) PT75916B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595129A (en) * 1983-12-28 1986-06-17 Cemedine Co., Ltd. Moistureproof sealing of a container
EP0254969A1 (fr) * 1986-07-30 1988-02-03 ARA-Werk Krämer GmbH + Co. Dispositif pour l'extrusion de matières pâteuses
US4809887A (en) * 1986-11-03 1989-03-07 Cebal Distributor for pasty products and a method of introducing the piston into the interior of the tubular body
US4854485A (en) * 1986-11-12 1989-08-08 Metal Box P.L.C. Pistons for pressure-dispensing containers
EP0647569A1 (fr) * 1993-10-04 1995-04-12 Falk Walter Schneider Piston pour cartouches
EP1514812A1 (fr) * 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Cartouche à piston évacuant
EP1514611A2 (fr) 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent
US7621428B2 (en) 2005-07-01 2009-11-24 Nordson Corporation Dispensing cartridge with vented piston

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3814633A1 (de) * 1988-04-29 1989-11-30 Maderag Ag Pfaeffikon Behaelter fuer pastoese massen
DE58905376D1 (de) * 1988-10-14 1993-09-30 Maderag Ag Pfaeffikon Ausdrückpistole für Doppelwandkartuschen.
DE9110529U1 (de) * 1991-08-26 1991-10-10 Prestele, Eugen, 8900 Augsburg Kartusche
US5419466A (en) * 1992-09-04 1995-05-30 Scheindel; Christian T. Bowed piston for a pressure operated container
DE4311876A1 (de) * 1993-04-10 1994-10-13 Hilti Ag Kolben für Auspressgeräte
FR2705951B1 (fr) * 1993-06-04 1995-08-11 Oreal Ensemble de distribution comprenant un récipient cylindrique comportant un piston.
DE9311227U1 (de) * 1993-07-27 1993-09-16 Alcan Deutschland GmbH, 37075 Göttingen Ausdrückkolben für einen hohlzylindrischen Vorratsbehälter aus Aluminium mit deckelseitigem Verschlußteil mit Ausgabeöffnung für stark diffundierende Stoffe
DE9315032U1 (de) * 1993-10-04 1994-01-27 Schneider, Falk Walter, 51580 Reichshof Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen
US5622288A (en) * 1995-06-12 1997-04-22 Sonoco Products Company Cartridge plunger with surface cleaning skirt
WO1999047433A1 (fr) * 1998-03-19 1999-09-23 Hugo Nilsson Extremite de cartouche, procede et outil de mise en oeuvre de cette extremite
DE20001438U1 (de) * 2000-01-28 2001-06-13 Prestele, Eugen, 86179 Augsburg Kartuschenkolben
DE20010417U1 (de) * 2000-06-09 2001-10-11 Sulzer Chemtech Ag, Winterthur Entlüftungsvorrichtung bei einem Kolben für eine Kartusche
GB0321332D0 (en) * 2003-09-11 2003-10-15 Glaxosmithkline Consumer Healt Novel device
DE202008005097U1 (de) * 2008-04-12 2009-10-29 Fischbach Kg Kunststoff-Technik Kartuschenkolben
US8668119B2 (en) * 2009-09-03 2014-03-11 James Wheeler Container for viscous comestibles
DE202010015594U1 (de) * 2010-07-30 2011-05-05 Spreizer, Heinrich Kapsel und Kolben
US9309042B2 (en) * 2013-06-14 2016-04-12 Nordson Corporation Liquid dispensing syringe and method for reducing piston bounce
ES2943282T3 (es) 2017-12-20 2023-06-12 Medmix Switzerland Ag Pistón, cartucho y procedimiento de ventilación de un cartucho
US12070768B2 (en) 2017-12-20 2024-08-27 Medmix Switzerland Ag Piston, cartridge and method of venting a cartridge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034047B1 (de) * 1970-07-09 1971-08-26 Alfred Fischbach Kg Kunststoff Spritzgusswerk Als Ausdrückkolben für plastische Masse dienender Verschluss aus elastischem Werkstoff für einen hohlzylindrischen Strangpressbehälter
US4027810A (en) * 1976-01-27 1977-06-07 Voplex Corporation Sealing plunger for cartridge
EP0004100A1 (fr) * 1978-03-14 1979-09-19 Ole Simonni Mundeling Nielsen Piston pour l'éjection d'une matière visqueuse ou plastique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB514787A (en) * 1938-05-16 1939-11-17 Oreste Pimazzoni Means for the gradual distribution of pasty materials from containers
US2433506A (en) * 1945-07-05 1947-12-30 Ernest W Davis Grease gun with a fluid pressure follower
DE1272816B (de) * 1960-04-27 1968-07-11 R C Can Company Zylindrische Fuellpatrone fuer eine Kolbenpresse zur Abgabe von zaehen Stoffen
US3286887A (en) * 1965-06-24 1966-11-22 Edwin P Sundholm Plunger assembly for hand-operated grease gun
US3381863A (en) * 1966-05-23 1968-05-07 Edward J. Towns Separating medium for use in pressurized dispensing containers
US3503542A (en) * 1967-04-13 1970-03-31 Standard Products Co Dispenser seal method and apparatus for forming the same
DE2217071A1 (de) * 1972-04-08 1974-01-24 Hagen Perennatorwerk Vorrichtung zum auspressen von viskosen massen, insbesondere pasten, wie klebstoff, dichtstoff u.dgl. aus verpackungsbehaeltern
US3815791A (en) * 1973-04-26 1974-06-11 Cantop Inc Hermetically sealed tube for containing and dispensing viscous materials
US4030643A (en) * 1975-12-11 1977-06-21 Voplex Corporation Contents-conserving plunger for cartridge
DE2920915A1 (de) * 1979-05-23 1980-11-27 Schieferdecker Gmbh & Co Kg Ausdrueckkolben fuer einen hohlzylindrischen behaelter
DE3005855A1 (de) * 1980-02-16 1981-08-20 Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen Bodenverschluss fuer einen hohlzylindrischen strangpressbehaelter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034047B1 (de) * 1970-07-09 1971-08-26 Alfred Fischbach Kg Kunststoff Spritzgusswerk Als Ausdrückkolben für plastische Masse dienender Verschluss aus elastischem Werkstoff für einen hohlzylindrischen Strangpressbehälter
US4027810A (en) * 1976-01-27 1977-06-07 Voplex Corporation Sealing plunger for cartridge
EP0004100A1 (fr) * 1978-03-14 1979-09-19 Ole Simonni Mundeling Nielsen Piston pour l'éjection d'une matière visqueuse ou plastique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595129A (en) * 1983-12-28 1986-06-17 Cemedine Co., Ltd. Moistureproof sealing of a container
EP0254969A1 (fr) * 1986-07-30 1988-02-03 ARA-Werk Krämer GmbH + Co. Dispositif pour l'extrusion de matières pâteuses
US4809887A (en) * 1986-11-03 1989-03-07 Cebal Distributor for pasty products and a method of introducing the piston into the interior of the tubular body
US4854485A (en) * 1986-11-12 1989-08-08 Metal Box P.L.C. Pistons for pressure-dispensing containers
EP0647569A1 (fr) * 1993-10-04 1995-04-12 Falk Walter Schneider Piston pour cartouches
EP1514812A1 (fr) * 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Cartouche à piston évacuant
EP1514611A2 (fr) 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent
US7621428B2 (en) 2005-07-01 2009-11-24 Nordson Corporation Dispensing cartridge with vented piston
US7909211B2 (en) 2005-07-01 2011-03-22 Nordson Corporation Dispensing cartridge with vented piston

Also Published As

Publication number Publication date
DE3148490A1 (de) 1983-07-07
ATE15354T1 (de) 1985-09-15
FI76986B (fi) 1988-09-30
DK539982A (da) 1983-06-09
PT75916A (de) 1982-12-01
ES269032U (es) 1983-06-16
DE3148490C2 (de) 1986-02-13
US4452370A (en) 1984-06-05
DK157316B (da) 1989-12-11
DK157316C (da) 1990-05-07
EP0081145B1 (fr) 1985-09-04
IE822907L (en) 1983-06-08
IE53921B1 (en) 1989-04-12
ES269032Y (es) 1983-12-16
DE3266064D1 (en) 1985-10-10
FI824045A0 (fi) 1982-11-24
FI76986C (fi) 1989-01-10
FI824045L (fi) 1983-06-09
PT75916B (de) 1985-01-25

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