EP2520375A3 - Closure and expression plunger for cartridges for plastic masses - Google Patents

Closure and expression plunger for cartridges for plastic masses Download PDF

Info

Publication number
EP2520375A3
EP2520375A3 EP12001294A EP12001294A EP2520375A3 EP 2520375 A3 EP2520375 A3 EP 2520375A3 EP 12001294 A EP12001294 A EP 12001294A EP 12001294 A EP12001294 A EP 12001294A EP 2520375 A3 EP2520375 A3 EP 2520375A3
Authority
EP
European Patent Office
Prior art keywords
sealing lip
cartridges
closure
facing
plastic masses
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
EP12001294A
Other languages
German (de)
French (fr)
Other versions
EP2520375B1 (en
EP2520375A2 (en
Inventor
Frank Ritter
Oliver Wolf
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.)
Ritter GmbH
Original Assignee
Ritter 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44658415&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2520375(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ritter GmbH filed Critical Ritter GmbH
Priority to PL12001294T priority Critical patent/PL2520375T3/en
Publication of EP2520375A2 publication Critical patent/EP2520375A2/en
Publication of EP2520375A3 publication Critical patent/EP2520375A3/en
Application granted granted Critical
Publication of EP2520375B1 publication Critical patent/EP2520375B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

Verschluss- und Ausdrückkolben für Kartuschen, mit einer Kolbenplatte (1) und einer sich daran rückwärts anschließenden zylindrischen Schürze (2), wobei der Übergangsbereich (4) zwischen Kolbenplatte (1) und Schürze (2) mit V-artigem Querschnitt ausgebildet ist und am Umfang eine schräg nach vorne und auswärts weisende Dichtlippe (5) bildet, wobei die Dichtlippe (5) an ihrer der Kolbenachse zugewandten Innenseite mit einer Mehrzahl von über den Umfang verteilten kleinen radialen Rippen (6) versehen ist, die nach vorne über die Dichtlippe überstehen und jeweils eine radial auswärts weisende, schräg rückwärts verlaufende und in die Vorderkantenfläche (8) der Dichtlippe (5) übergehende Rampenfläche (7) bilden.

Figure imgaf001
Closing and Ausdrückkolben for cartridges, with a piston plate (1) and a subsequent rear cylindrical skirt (2), wherein the transition region (4) between the piston plate (1) and skirt (2) is formed with V-like cross-section and on Circumferentially forms an obliquely forward and outward-facing sealing lip (5), wherein the sealing lip (5) is provided on its inner side facing the piston axis with a plurality of circumferentially distributed small radial ribs (6) which project forward beyond the sealing lip and each form a radially outwardly facing, obliquely rearwardly extending and in the leading edge surface (8) of the sealing lip (5) merging ramp surface (7).
Figure imgaf001
EP12001294.3A 2011-05-04 2012-02-28 Closure and expression plunger for cartridges for plastic masses Active EP2520375B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12001294T PL2520375T3 (en) 2011-05-04 2012-02-28 Closure and expression plunger for cartridges for plastic masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011100254U DE202011100254U1 (en) 2011-05-04 2011-05-04 Closing and ejection piston for cartridges for plastic masses

Publications (3)

Publication Number Publication Date
EP2520375A2 EP2520375A2 (en) 2012-11-07
EP2520375A3 true EP2520375A3 (en) 2012-12-05
EP2520375B1 EP2520375B1 (en) 2014-07-30

Family

ID=44658415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12001294.3A Active EP2520375B1 (en) 2011-05-04 2012-02-28 Closure and expression plunger for cartridges for plastic masses

Country Status (3)

Country Link
EP (1) EP2520375B1 (en)
DE (1) DE202011100254U1 (en)
PL (1) PL2520375T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021108642A1 (en) 2021-04-07 2022-10-13 Ritter Gmbh Trailing piston with supporting lip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0409750A1 (en) * 1989-07-19 1991-01-23 Cebal S.A. Method for inserting a tight-fitting piston into a tubular, cylindrical body and the corresponding device
DE20319464U1 (en) * 2002-12-10 2004-04-22 Topic, Anton Plunger for cartridge for holding and pressing out of paste substances has on outer side of plunger wall at least one elastic encompassing blade of plastic orientated at angle outwards in relation to end wall of plunger
WO2005050068A1 (en) * 2003-11-13 2005-06-02 Meritool Llc Viscous material dispenser piston

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0409750A1 (en) * 1989-07-19 1991-01-23 Cebal S.A. Method for inserting a tight-fitting piston into a tubular, cylindrical body and the corresponding device
DE20319464U1 (en) * 2002-12-10 2004-04-22 Topic, Anton Plunger for cartridge for holding and pressing out of paste substances has on outer side of plunger wall at least one elastic encompassing blade of plastic orientated at angle outwards in relation to end wall of plunger
WO2005050068A1 (en) * 2003-11-13 2005-06-02 Meritool Llc Viscous material dispenser piston

Also Published As

Publication number Publication date
EP2520375B1 (en) 2014-07-30
PL2520375T3 (en) 2014-12-31
EP2520375A2 (en) 2012-11-07
DE202011100254U1 (en) 2011-08-22

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