EP0497739A2 - Cartouche de décharge avec cylindre de réserve et piston de convoyage - Google Patents

Cartouche de décharge avec cylindre de réserve et piston de convoyage Download PDF

Info

Publication number
EP0497739A2
EP0497739A2 EP92810054A EP92810054A EP0497739A2 EP 0497739 A2 EP0497739 A2 EP 0497739A2 EP 92810054 A EP92810054 A EP 92810054A EP 92810054 A EP92810054 A EP 92810054A EP 0497739 A2 EP0497739 A2 EP 0497739A2
Authority
EP
European Patent Office
Prior art keywords
piston
sealing lip
cartridge according
discharge cartridge
sealing
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
EP92810054A
Other languages
German (de)
English (en)
Other versions
EP0497739B1 (fr
EP0497739A3 (en
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.)
Individual
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 EP0497739A2 publication Critical patent/EP0497739A2/fr
Publication of EP0497739A3 publication Critical patent/EP0497739A3/de
Application granted granted Critical
Publication of EP0497739B1 publication Critical patent/EP0497739B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B65D83/0033—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container the piston being a follower-piston and the dispensing means comprising a hand-operated pressure-device at the opposite part of 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 present invention relates to a discharge cartridge with a storage cylinder and a delivery piston, in the cylinder wall of which a sealing ring is embedded.
  • a discharge cartridge is known from EP-A-344 491 by the same applicant.
  • this discharge cartridge represented an advance over the known state of the art, but tests have shown that it can be improved.
  • Swiss application 02 079 / 90-1 starting from a delivery piston with ventilation bores, a feature was essentially improved in order to prevent material flowing out when the delivery piston is pressed in and closing the ventilation bore, which can lead to disruptive contamination and measures have also been taken to ensure faster and easier closing.
  • the present invention is aimed at improving another property of the discharge cartridge, at improving the storage of the filling compound, in particular at the long-term storage of aggressive substances.
  • a sealing ring While for many applications the sealing of the delivery plunger in the cartridge wall by means of a sealing ring, generally an O-ring is sufficient, aggressive substances that can attack this O-ring or those that have a low viscosity or extreme creep properties can cause situations , in which the use of only one sealing element becomes problematic. There are also substances that are sensitive to the penetration of water vapor or gases and thereby change their chemical properties.
  • FIG. 3 shows the discharge cartridge 1 with the supply cylinder 2 with its wall 3, the supply cylinder being closed at the bottom by a lockable mouth, not shown.
  • a delivery piston 50 which generally consists of a soft material, preferably plastic.
  • the delivery piston is sealed against the wall 3 of the supply cylinder 2 by two sealing members and no longer only by one which is arranged at the end of the delivery piston on the product side .
  • O-ring 51 is now inserted into the cylinder jacket 53 at a distance from the end 52 of the delivery piston, preferably at its other end.
  • a circumferential sealing lip 54 At the end 52 of the delivery piston on the product side there is a circumferential sealing lip 54, which is adjoined by a circumferential V-shaped groove 55 which merges into the piston wall 53.
  • the sealing lip is flat at the front with the front piston surface.
  • a circumferential cavity 57 (see Fig. 3) is formed.
  • This cavity 57 serves as a collecting chamber for the wall layer of the filling compound stripped from the O-ring, or if a small amount of filling compound does get behind the sealing lip.
  • vent hole 9 can be closed by a closure 10, which is described in detail in the aforementioned Swiss application and seals the same overflow chamber 17.
  • the bottom surface 58 of the piston contains an arrangement of radially extending ventilation grooves 15, which have a constantly increasing depth towards the ventilation bore 9 in this exemplary embodiment. Experiments have shown that these grooves 15 can also have a uniform depth in order to perform their function correctly. As can be seen from FIG. 1, the number of radially arranged grooves 15 decreases in the central region in order to facilitate production.
  • the delivery piston also has the radial ribs 16 already described in the aforementioned application.
  • the circumferential groove 55 is also vented. This ventilation is achieved in that the radially extending grooves 15 open into the V-shaped circumferential groove 55 at their outer end. As a result, the air can be pressed out of this V-shaped groove completely to the vent hole 9 in order to escape there.
  • the dosing ratio can be maintained exactly, which is particularly the case with multiple discharge cartridges with storage cylinders of different diameters, respectively. Volumes is necessary.
  • the O-ring or other sealing element does not come into contact with the filling compound, or only very slightly, during the storage time, which is particularly important for long storage times and also when it comes to aggressive products.
  • the double sealing system also effectively prevents the penetration of water vapor or gases, which could endanger the chemical stability of the filling compound.
  • the central lip is generally not damaged when the piston is pushed in. This is in contrast to conventional methods which, by introducing venting needles or the like between the piston and the cylinder wall, achieve often incomplete venting and / or damage the sealing member.
  • the delivery piston 60 has, in addition to the first sealing lip 54, a second sealing lip 61, which can be somewhat smaller than the first. Between the sealing lip 54 and the flat bottom 66 of the piston in this example there is the same circumferential groove 55 as in the first example, into which, for example, the same ventilation grooves 15 as in the first example can open.
  • the second sealing lip is not only a safeguard when the first one is damaged, but also comes into operation if low-viscosity fillers are used.
  • the O-ring 65 is embedded in a recess 63 in the wall 62 which is arranged near the end opposite the sealing lips, which is followed by a second recess 64.
  • sealing lips are not limited to the version with the overflow chamber, but is suitable for all types of delivery pistons in discharge cartridges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Coating Apparatus (AREA)
EP92810054A 1991-01-29 1992-01-27 Cartouche de décharge avec cylindre de réserve et piston de convoyage Expired - Lifetime EP0497739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH269/91 1991-01-29
CH26991 1991-01-29

Publications (3)

Publication Number Publication Date
EP0497739A2 true EP0497739A2 (fr) 1992-08-05
EP0497739A3 EP0497739A3 (en) 1993-03-10
EP0497739B1 EP0497739B1 (fr) 1996-10-09

Family

ID=4183158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810054A Expired - Lifetime EP0497739B1 (fr) 1991-01-29 1992-01-27 Cartouche de décharge avec cylindre de réserve et piston de convoyage

Country Status (5)

Country Link
US (1) US5400926A (fr)
EP (1) EP0497739B1 (fr)
JP (1) JP3347759B2 (fr)
KR (1) KR100239097B1 (fr)
DE (1) DE59207301D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315032U1 (de) * 1993-10-04 1994-01-27 Schneider Falk Walter Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen
WO1995028337A1 (fr) * 1994-04-13 1995-10-26 Adlock Packaging Limited Dipositif d'etancheite pour distributeur de fluide
EP0693437A1 (fr) * 1994-07-18 1996-01-24 Wilhelm A. Keller Cartouche avec emballage du continu interchangeable
NL1007557C2 (nl) * 1997-11-17 1999-05-18 Cosmocair C V Houder met variabel volume.
EP0899213A3 (fr) * 1997-08-27 1999-07-07 L'oreal Ensemble de conditionnement d'un produit liquide ou semi liquide du type à pompe
EP1514611A2 (fr) 2003-09-10 2005-03-16 Heraeus Kulzer GmbH Piston de fermeture de cartouches ayant des propriétés de barrière et d'évent
US8678246B2 (en) 2008-03-26 2014-03-25 Adcatec Gmbh Cartridge and piston with ventilation device
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
DE102017203241A1 (de) 2017-02-28 2018-08-30 Fischbach Kg Kunststoff-Technik Kolben für Kartuschen
US11185391B2 (en) 2016-09-21 2021-11-30 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595694B1 (fr) * 1986-03-13 1988-11-10 Hoechst France Nouveaux derives substitues du n-ethyl (meth) acrylamide et procede pour leur preparation
US5622288A (en) * 1995-06-12 1997-04-22 Sonoco Products Company Cartridge plunger with surface cleaning skirt
US5779107A (en) * 1997-01-24 1998-07-14 Clayton Corporation Pressurizable container assembly and piston member therefor
US5878922A (en) * 1997-07-09 1999-03-09 Sunoco Products Company Self venting plunger
AU2002351268A1 (en) * 2001-12-10 2003-06-23 Tah Industries, Inc. Dispensing cartridge with tortuous vent path
US7125187B2 (en) * 2001-12-27 2006-10-24 L'Oréal, S.A. Closure system for a container
KR100875616B1 (ko) 2002-07-10 2008-12-24 삼성전자주식회사 컴퓨터
US20050029306A1 (en) * 2002-12-06 2005-02-10 Brennan Robert Charles Dispensing cartridge with tortuous vent path
EP1633672B1 (fr) * 2003-06-09 2007-07-18 Tah Industries, Inc. Ensemble de cartouches a deux fluides
DE10337789A1 (de) * 2003-08-14 2005-09-15 3M Espe Ag Einzeldosisspritze für ein mehrkomponentiges Material
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
EP1886937A1 (fr) * 2006-08-07 2008-02-13 3M Innovative Properties Company Piston avec une surface de compensation de pression
DE102006047289B4 (de) * 2006-10-06 2008-09-04 Sulzer Chemtech Ag Kartuschenkolben
NL2000634C2 (nl) * 2007-05-07 2008-11-10 Bema Kunststoffen B V Houder en systeem voor het bewaren van een vloeistof.
US8235255B2 (en) * 2008-07-02 2012-08-07 Nordson Corporation Pistons with a lip seal and cartridge systems using such pistons
JP4439577B1 (ja) * 2008-11-28 2010-03-24 株式会社アルテ 容器兼用注射器
TW201029897A (en) * 2008-12-12 2010-08-16 Sulzer Mixpac Ag Cartridge piston
CA2690171A1 (fr) * 2009-02-11 2010-08-11 Sulzer Mixpac Ag Piston de cartouche a event
USD658763S1 (en) 2010-02-02 2012-05-01 3M Innovative Properties Company Dental capsule
ES2470240T3 (es) * 2011-07-15 2014-06-23 Sulzer Mixpac Ag Medio de seguridad del pistón
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
EP2998030A1 (fr) * 2014-09-17 2016-03-23 Sulzer Mixpac AG Piston destiné à une cartouche, cartouche et procédé pour purger l'air d'une cartouche
KR101696700B1 (ko) * 2015-08-18 2017-01-23 주식회사 해민테크 통기 장치를 구비한 카트리지 피스톤
DE102021130023A1 (de) * 2021-11-17 2023-05-17 Fischerwerke Gmbh & Co. Kg Kartusche zum Befüllen und befüllte Kartusche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607442A1 (de) * 1975-02-24 1976-08-26 Soeren Johansson Ausruestung fuer anbringung von fugenmassen
DE3405547A1 (de) * 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
EP0344491A1 (fr) * 1988-06-03 1989-12-06 Wilhelm A. Keller Cartouche de distribution avec reservoir de stockage et piston d'expulsion
EP0463991A1 (fr) * 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1044165A (fr) * 1951-10-25 1953-11-16 Ile D Etudes Pour La Fabricati Piston pour distributeur de fard
US3066836A (en) * 1962-02-19 1962-12-04 Pyles Ind Inc Replaceable dispenser for sealant gun
US3217936A (en) * 1963-01-09 1965-11-16 Robert Henry Abplanalp Dispenser for materials under pressure
US4432473A (en) * 1981-02-24 1984-02-21 Sealright Co., Inc. Cartridge-type dispenser
DE3435576A1 (de) * 1984-09-27 1986-04-10 Josef Wischerath GmbH & Co KG, 5000 Köln Spender fuer pastoese produkte
DE3615659A1 (de) * 1986-05-09 1987-11-12 Hilti Ag Auspresskolben mit speicherkammer
GB2197425B (en) * 1986-11-12 1990-02-28 Metal Box Plc Pistons for pressure-dispensing containers
EP0281755B1 (fr) * 1987-02-13 1990-11-07 Wilhelm A. Keller Cartouche-distributrice à piston refoulant
US4819836A (en) * 1987-06-10 1989-04-11 Mega Plast Product- U. Verpackungsentwicklung Marketing Gesellschaft Mit Beschrankter Haftung & Co. Dispenser for dispensing paste compositions
IT1217852B (it) * 1988-06-17 1990-03-30 Guala Spa Dispensatore di prodotti pastosi particolarmente di pasta dentifricia
EP0351441A1 (fr) * 1988-07-21 1990-01-24 Alfred Fischbach Kunststoffspritzgusswerk Cartouche pour masses plastiques
GB8903826D0 (en) * 1989-02-20 1989-04-05 Sandia Investments Sa Packages for liquids
US5022563A (en) * 1990-01-10 1991-06-11 Electron Fusion Devices, Inc. Dispenser-gun assembly for viscous fluids and dispenser therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607442A1 (de) * 1975-02-24 1976-08-26 Soeren Johansson Ausruestung fuer anbringung von fugenmassen
DE3405547A1 (de) * 1984-02-16 1985-08-14 Hilti Ag, Schaan Auspresskolben fuer behaelter
EP0344491A1 (fr) * 1988-06-03 1989-12-06 Wilhelm A. Keller Cartouche de distribution avec reservoir de stockage et piston d'expulsion
EP0463991A1 (fr) * 1990-06-21 1992-01-02 Wilhelm A. Keller Cartouche de distribution avec réservoir de stockage et piston d'expulsion

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315032U1 (de) * 1993-10-04 1994-01-27 Schneider Falk Walter Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen
WO1995028337A1 (fr) * 1994-04-13 1995-10-26 Adlock Packaging Limited Dipositif d'etancheite pour distributeur de fluide
EP0693437A1 (fr) * 1994-07-18 1996-01-24 Wilhelm A. Keller Cartouche avec emballage du continu interchangeable
US5667102A (en) * 1994-07-18 1997-09-16 Keller; Wilhelm A. Cartridge with an exchangeable content package
EP0899213A3 (fr) * 1997-08-27 1999-07-07 L'oreal Ensemble de conditionnement d'un produit liquide ou semi liquide du type à pompe
WO1999025627A1 (fr) * 1997-11-17 1999-05-27 Cosmocair C.V. Contenant a volume variable
NL1007557C2 (nl) * 1997-11-17 1999-05-18 Cosmocair C V Houder met variabel volume.
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
US8678246B2 (en) 2008-03-26 2014-03-25 Adcatec Gmbh Cartridge and piston with ventilation device
US11185391B2 (en) 2016-09-21 2021-11-30 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material
DE102017203241A1 (de) 2017-02-28 2018-08-30 Fischbach Kg Kunststoff-Technik Kolben für Kartuschen

Also Published As

Publication number Publication date
DE59207301D1 (de) 1996-11-14
KR920015059A (ko) 1992-08-26
US5400926A (en) 1995-03-28
JPH06100053A (ja) 1994-04-12
EP0497739B1 (fr) 1996-10-09
EP0497739A3 (en) 1993-03-10
KR100239097B1 (ko) 2000-03-02
JP3347759B2 (ja) 2002-11-20

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