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WO1999036188A1 - Dispositif d'evacuation d'air - Google Patents

Dispositif d'evacuation d'air Download PDF

Info

Publication number
WO1999036188A1
WO1999036188A1 PCT/EP1998/008502 EP9808502W WO9936188A1 WO 1999036188 A1 WO1999036188 A1 WO 1999036188A1 EP 9808502 W EP9808502 W EP 9808502W WO 9936188 A1 WO9936188 A1 WO 9936188A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
venting device
pocket
deaerating
open
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.)
Ceased
Application number
PCT/EP1998/008502
Other languages
German (de)
English (en)
Inventor
Eugen Prestele
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
Priority to DE59805244T priority Critical patent/DE59805244D1/de
Priority to EP98966418A priority patent/EP0966331B1/fr
Publication of WO1999036188A1 publication Critical patent/WO1999036188A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means

Definitions

  • the invention relates to a ventilation device for removing the residual air when inserting a piston into a filled cartridge with a ventilation opening running from the piston surface into the open.
  • pistons are inserted into filled cartridges, it is necessary to remove the residual air between the filling material and the piston. It is known to simultaneously insert a wire between the piston and the wall of the cartridge when inserting the piston, so that the residual air is pressed out in the area of the wire when the piston is inserted. This residual air removal is very time consuming and also involves the risk that the sealing lips on the piston can be damaged.
  • vent valves on the piston which are opened when the piston is inserted into the cartridge by means of a specially shaped piston push-in ram.
  • This requires specially adapted press-in tappets and requires relatively narrow manufacturing tolerances for the ventilation valves.
  • These vent valves have also proven to be prone to failure.
  • the object is to design the ventilation device in such a way that ventilation when inserting the piston is possible without additional manipulations. This object is achieved with the features of claim 1. Advantageous refinements can be found in the subclaims.
  • FIG. 1 shows a section through the open cartridge end and through a piston.
  • Fig. 2 is a plan view of this piston
  • Fig. 4 shows a section through an annular piston for a two-component cartridge.
  • the piston 1 is inserted into the open end of a cartridge 2, which was previously filled.
  • the piston 1 has sealing lips 3, 4 at both ends, the elasticity of the sealing lip 3 facing the cartridge 2 being achieved by a circumferential incision 5.
  • a vent opening 7 is provided in the center of the piston surface 6 and widens towards the underside of the piston.
  • a cylindrical micropore filter 9 is inserted into this pocket 8. It is a porous filter as it is known in medical technology for the filtration of liquids.
  • This micropore filter 9 preferably consists of a sintered material made of plastic, for example of PE or PTFE with a pore size of 10 ⁇ m to 80 ⁇ m. The sintered material has open pores.
  • the pocket 8 can also be formed by the cylindrical wall 10 of the piston 1.
  • FIG. 4 shows a section through an annular piston of a two-component coaxial cartridge.
  • This piston is provided with a cylindrical pocket 8 which is open at the top and which has a base 11 on its side facing away from the piston side, on which the ventilation opening 7 is formed.
  • the microporous filter 9 is inserted into this pocket 8.
  • the piston 1 consists of a soft plastic that is not resistant to the filling material and is not diffusion-tight
  • a thin cover disk can be attached to the upper side of the piston, which consists of a material that is diffusion-proof and resistant to the filling material.
  • This cover plate is provided with a large number of small ventilation openings. In the case of the embodiment according to FIG. 4, this cover plate is annular. It not only protects the piston against the filling material, but also prevents the filter 9 from coming into direct contact with the filling material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Compressor (AREA)
  • External Artificial Organs (AREA)
  • Massaging Devices (AREA)
  • Arc Welding In General (AREA)

Abstract

L'invention concerne un dispositif pour évacuer l'air résiduel lors de l'introduction d'un piston (1) dans une cartouche pleine (2), ledit dispositif comprenant au moins une ouverture d'évacuation d'air (7) s'étendant vers l'air libre à partir de la surface de piston (6). Ce type de dispositif d'évacuation d'air s'est avéré peu fiable et nécessite des poussoirs spécialement adaptés. L'invention vise à créer un dispositif d'évacuation d'air permettant l'évacuation d'air lors de l'introduction du piston, sans manipulation supplémentaire. A cet effet, une poche (8), dans laquelle est placé un filtre microporeux (9), est formée sur la surface de piston (6) au niveau de l'ouverture d'évacuation d'air (7).
PCT/EP1998/008502 1998-01-15 1998-12-28 Dispositif d'evacuation d'air Ceased WO1999036188A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59805244T DE59805244D1 (de) 1998-01-15 1998-12-28 Kolben zum Einsetzen in eine gefüllte Kartusche
EP98966418A EP0966331B1 (fr) 1998-01-15 1998-12-28 Piston pour mettre dans une cartouche remplie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29800594.8 1998-01-15
DE29800594U DE29800594U1 (de) 1998-01-15 1998-01-15 Entlüftungsvorrichtung

Publications (1)

Publication Number Publication Date
WO1999036188A1 true WO1999036188A1 (fr) 1999-07-22

Family

ID=8051282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/008502 Ceased WO1999036188A1 (fr) 1998-01-15 1998-12-28 Dispositif d'evacuation d'air

Country Status (3)

Country Link
EP (1) EP0966331B1 (fr)
DE (2) DE29800594U1 (fr)
WO (1) WO1999036188A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009006A1 (fr) * 1999-07-31 2001-02-08 Sulzer Chemtech Ag Piston pour cartouche
DE10235599A1 (de) * 2002-08-02 2004-02-19 Ritter Gmbh Kolben mit Entlüftung für Kartuschen zur Aufnahme und Abgabe plastischer Massen
CN102753441A (zh) * 2009-12-22 2012-10-24 苏舍米克斯帕克有限公司 活塞设置装置、包括此类装置的系统和用于在套筒中设置活塞的方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010417U1 (de) 2000-06-09 2001-10-11 Sulzer Chemtech Ag, Winterthur Entlüftungsvorrichtung bei einem Kolben für eine Kartusche
DE20103911U1 (de) * 2001-03-06 2002-07-11 Alusuisse Bayrisches Druckguß-Werk GmbH & Co. KG, 85570 Markt Schwaben Dichtmittelbehälter
DE20117778U1 (de) 2001-10-31 2003-03-20 Sulzer Chemtech Ag, Winterthur Kartuschenkolben mit Entlüftung
JP2009511376A (ja) 2005-10-14 2009-03-19 スリーエム イノベイティブ プロパティズ カンパニー カートリッジ用プランジャ及びプランジャアセンブリ、物質を格納するシステム、並びに物質をデリバリーシステム内に充填し封止する方法
USD657876S1 (en) 2010-02-02 2012-04-17 3M Innovative Properties Company Dental capsule
EP3299082A1 (fr) 2016-09-21 2018-03-28 3M Innovative Properties Company Ensemble mélangeur et dispositif de distribution de matériau dentaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531322B1 (de) * 1974-09-04 1977-01-13 Fischbach Alfred Kg Kunststoff Als ausdrückkolben für zähplastische massen dienender bodenverschluss aus elastischem werkstoff für einen hohlzylinderischen strangpressbehälter
US4405249A (en) * 1980-03-28 1983-09-20 National Research Development Corporation Dispensing apparatus and method
EP0397589A1 (fr) * 1989-05-12 1990-11-14 Wolff & Kaaber A/S Procédé et appareil pour mélanger une substance solide avec un liquide
US5181918A (en) * 1990-08-10 1993-01-26 Thera Patent Gmbh & Co. Kg Gesellschaft Fuer Industrielle Schutzrechte Granules syringe
US5242091A (en) * 1991-11-21 1993-09-07 Dow Corning Toray Silicone Co., Ltd. Sealant cartridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531322B1 (de) * 1974-09-04 1977-01-13 Fischbach Alfred Kg Kunststoff Als ausdrückkolben für zähplastische massen dienender bodenverschluss aus elastischem werkstoff für einen hohlzylinderischen strangpressbehälter
US4405249A (en) * 1980-03-28 1983-09-20 National Research Development Corporation Dispensing apparatus and method
EP0397589A1 (fr) * 1989-05-12 1990-11-14 Wolff & Kaaber A/S Procédé et appareil pour mélanger une substance solide avec un liquide
US5181918A (en) * 1990-08-10 1993-01-26 Thera Patent Gmbh & Co. Kg Gesellschaft Fuer Industrielle Schutzrechte Granules syringe
US5242091A (en) * 1991-11-21 1993-09-07 Dow Corning Toray Silicone Co., Ltd. Sealant cartridge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001009006A1 (fr) * 1999-07-31 2001-02-08 Sulzer Chemtech Ag Piston pour cartouche
DE10235599A1 (de) * 2002-08-02 2004-02-19 Ritter Gmbh Kolben mit Entlüftung für Kartuschen zur Aufnahme und Abgabe plastischer Massen
CN102753441A (zh) * 2009-12-22 2012-10-24 苏舍米克斯帕克有限公司 活塞设置装置、包括此类装置的系统和用于在套筒中设置活塞的方法
CN102753441B (zh) * 2009-12-22 2014-10-29 苏舍米克斯帕克有限公司 活塞设置装置、包括此类装置的系统和用于在套筒中设置活塞的方法

Also Published As

Publication number Publication date
EP0966331A1 (fr) 1999-12-29
EP0966331B1 (fr) 2002-08-21
DE29800594U1 (de) 1998-03-26
DE59805244D1 (de) 2002-09-26

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