US20050161454A1 - Device for opening a tubular bag and its application - Google Patents

Device for opening a tubular bag and its application Download PDF

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Publication number
US20050161454A1
US20050161454A1 US11/023,249 US2324904A US2005161454A1 US 20050161454 A1 US20050161454 A1 US 20050161454A1 US 2324904 A US2324904 A US 2324904A US 2005161454 A1 US2005161454 A1 US 2005161454A1
Authority
US
United States
Prior art keywords
blade
tubular bag
bag
tube
pierced
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.)
Abandoned
Application number
US11/023,249
Other languages
English (en)
Inventor
Klaus-Dieter Nehren
Gottfried Knispel
Monika Thelen
Holger Urbas
Martina Becker
Markus Klein
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.)
Kulzer GmbH
Original Assignee
Heraeus Kulzer 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
Application filed by Heraeus Kulzer GmbH filed Critical Heraeus Kulzer GmbH
Assigned to HERAEUS KULZER GMBH reassignment HERAEUS KULZER GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: THELEN, MONIKA, BECKER, MARTINA, URBAS, HOLGER, KLEIN, MARKUS, KNISPEL, GOTTFRIED, NEHREN, KLAUS-DIETER
Publication of US20050161454A1 publication Critical patent/US20050161454A1/en
Abandoned 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
    • B05C17/00586—Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting
    • B65B69/0041—Unpacking of articles or materials, not otherwise provided for by cutting by puncturing

Definitions

  • the invention concerns a device for the opening of a tubular bag and also for its application.
  • the known mechanisms have certain disadvantages depending on the consistency of the products in these tubular bags.
  • EP 787 655 describes a device, wherein the bag stretches out under pressure beyond its original shape, before it bursts due to a device arranged behind the top plate.
  • the disadvantage of this system is that a paste can be held back temporarily until this bag bursts open under partly high pressure and the paste, particularly in the case of freely flowing pastes, spills over, until the pressure is counter-balanced. Thus this leads to fluctuating mixing ratios, before and after opening both the components as well.
  • the device described in it creates an opening that is bigger than just a slit.
  • the blade 1 (of FIG. 3 ) attached to the flow channel causes a disturbed flow resistance in the case of this enlarged bottle opening.
  • the task of the invention is to offer a system for tubular bags that is comfortable for the user, guarantees an even discharge flow from the beginning and also causes as little flow resistance as possible even in the case of products with high consistency and high viscosity.
  • the task is solved by a device with a blade that is attached to an inserting tube, wherein the switchblade is fitted to the inner wall of the outlet for the material contained in the bag for lancing and cutting the tubular bag. That is, the shape of the blade follows the wall of the opening and/or represents the wall of the opening. If the outlet is cylindrical, then the blade is preferentially curved such that it conforms to the shape of a cylinder.
  • the invention particularly concerns a device for opening a tubular bag with
  • one or several bars connected to a toothed wheel in the channel prevent the twisting of the tube when the bag is being pierced or is pierced.
  • the inserting tube and the blade are made of different materials, namely, the tube is made of a sealing material and the blade is made of a sturdy material. Furthermore, it is advantageous if the blade has at least two pointed tips that are connected by a slanting or bent cutting edge. The blade preferentially creates a non-linear opening in the foil of the tubular bag by which the resistance for viscous pastes can be kept low.
  • the blade preferentially has at least two pointed tips that are connected by a cutting edge.
  • it is necessary to design the blade such that it is very pointed, sharp-edged and stiff, as would be possible using steel or ceramics for instance.
  • the blade and opening tube out of one unit (combination component). Since the side of the opening tube facing away from the blade must be essentially more flexible and softer in order to be easily attachable and again removable as a plug connection to the mixer, and also in order to have a caulking effect, the ‘combination component’ should be manufactured out of at least two different materials.
  • the piercing tubes described in EP 1 121 195 do not exhibit material combinations of stiff pointed tip and elastic sealing edge or even their faultless functioning.
  • the opening pricked into the foil should be as large as possible, the flow channel should be designed with the largest possible cross-section area and its surface touching the product should be as small as possible for reduction in friction.
  • the blade Since the blade is designed such that it is an integral part of the flow channel wall, and also causes an end-to-end incision that is not linear in the foil, the frictional resistance (viscous drag) of the pastes drops conspicuously. This represents an appropriate advantage as opposed to the blades that are arranged such that they obstruct the flow of the product.
  • the cut foil piece is furthermore conveniently connected to the bag and is placed at the wall of the outlet channel by the product flow.
  • the cut surface can be L-, V-, or U-shaped, or semicircular to almost circular.
  • the structural design of the blade has proved to be optimal if the blade has at least two pointed tips for piercing the foil that are connected by the slanting and/or curved blade edge.
  • both the pointed tips of the blade must be advantageously designed
  • the pointed tip should not exceed an angle of 45° in order to function efficiently.
  • An anti-twist device is necessary to avoid the blade from getting twisted when or after the bag is pierced. This is ensured when at least one or several bars are affixed to the tube that engage a toothed wheel affixed to the bottle cap in the channel if the tube is inserted. Conversely, the toothed wheel can even be arranged in the tube and the bar/s can be arranged in the channel. In the absence of an anti-twist device, in certain circumstances in the pierced state, a part of the bag foil can be separated by a rotary motion of the tube.
  • the opening function can also be coupled with a closing function, so that a device is developed for the opening and resealing of a tubular bag with a blade affixed to a plug and a sealing element.
  • the plug and the blade are preferentially made of different materials, namely, the plug is made of a sealing material and the blade is made of a sturdy material.
  • the part for lancing the bag must always be pointed, sharp and stiff, the risk of injury by the pointed plug can be avoided if the bag is pierced during the manufacturing process and subsequently sealed with a plug without a pointed tip, which then can be pulled off and can be disposed of safely by the user. This would shift the application of the device according to the invention at hand completely to the manufacturer's side.
  • the invention concerns also the production and application of preopened and resealed tubular bags wherein the foil of the bag in the area of the outlet channel is pierced before delivery and resealed with a sealing plug until application, as well as preopened tubular bags of such a type wherein the foil piece is punched out and removed before the sealing plug is inserted.
  • FIGS. 1 and 2 illustrate the tubular bag and the opening device before and after piercing.
  • FIG. 3 illustrates a device of the state of art technology with a switchblade with a straight and pointed blade 1 .
  • FIG. 4 illustrates the solution according to the invention at hand with a blade 2 based on a cylindrical shape (top view 10 , three quarters of a circle) and two pointed tips 12 , and two bars ( 21 ) at the tube that provide twist protection.
  • FIG. 5 illustrates the detailed top, front and side view of a blade with 2 pointed tips ( 12 ).
  • FIG. 6 illustrates the detailed top, front and side view of a blade with 3 pointed tips ( 12 ).
  • FIG. 7 illustrates a preopened tubular bag with a closure part (core plug) ( 19 ) consisting of blade ( 20 ) and plug ( 23 ).
  • FIG. 8 illustrates a solution without switchblade and with preopened bag (C) and sealing plug ( 24 ).
  • FIG. 9 illustrates the detailed side view of a toothed wheel ( 25 ) affixed to the channel that functions as twist protection.
  • FIG. 10 illustrates the top view of the channel with the toothed wheel ( 25 ).
  • FIG. 11 illustrates the tubular bag after lancing, wherein the bars ( 21 ) engage the toothed wheel ( 25 ) in order to prevent twisting.
  • a safety spacer can be seen as attribute 26 that is arranged between the edge of the channel 3 and the broader part of the inserting tube 8 for preventing the unintended opening of the device.
  • the blade 2 , 6 in ( FIG. 4, 5 , 6 ) is introduced through the channel 3 ( FIG. 2 ) and is then arranged opposed to EP 787 655 conspicuously in front of the level 4 of the top plate 5 .
  • this blade 2 , 6 In order to guarantee the optimal function of this blade 2 , 6 it is necessary to design it such that it is very pointed, sharp-edged and stiff as is possible for example with steel or ceramics.
  • each tube 7 , 8 must be manufactured out of at least two different materials.
  • the piercing tubes described in EP 1 121 195 do not exhibit material combinations of stiff pointed tip and elastic sealing edge or even their faultless functioning.
  • Preferred material for the part 7 , 8 are thermoplastic materials like polypropylene or polyethylene and the preferred materials for the part 2 , 6 are stainless steel, spring steel, light metal, ceramics or thermoplastic with high elastic modulus.
  • the opening B that is pricked into the foil should be as large as possible, the flow channel must be designed with a cross-section area that is as large as possible and its surface touching the product should be as small as possible for friction reduction.
  • the blade Since the blade is designed such that it is an integral part of the flow channel wall 9 , and also causes an end-to-end incision that is not linear in the foil, the frictional resistance (viscous drag) of the pastes drops considerably. This represents an appropriate advantage as opposed to the blades that are arranged such that they obstruct the flow of the product. ( FIG. 3 ).
  • the cut surface can be L-, V-, or U-shaped or semicircular to almost circular ( FIG. 4 , B, 10 ).
  • the smallest press-out strength while simultaneously avoiding the foil parts from getting into the product of an opened bag of such type can be achieved if the incision B is 3 ⁇ 4-semicircular 10 .
  • the structural design of the blade has proved to be optimal if the blade has at least two pointed tips 12 , 13 for piercing the foil that are connected to each other by the slanting and/or bent blade edge 14 .
  • both the pointed tips 12 must be designed at the end of the cutting edge 14 at the side 16 facing away from the cutting edge with an angle 17 of at least 180° to the piercing direction.
  • the pointed tip 12 , 13 should not exceed an angle 18 of 45° in order to function efficiently.
  • An anti-twist device is necessary to avoid the blade from getting twisted when or after the bag is pierced. This is ensured when at least one or several bars 21 are affixed to the tube 7 that engage a toothed wheel 25 affixed to the bottle cap in the channel 3 , if the tube is inserted.
  • toothed wheel can be arranged at the tube and the bars can be arranged in the channel.
  • the inserting tube 7 , 8 and the blade 2 , 6 are preferentially made of different materials, namely, the tube is made of a sealing material and the blade is made of a sturdy material.
  • Thermoplastic resins can be used as sealing material.
  • one or several bars 21 at the tube 7 connected to a toothed wheel 25 in the channel 3 prevent the twisting of the tube when the bag is being pierced or is pierced.
  • the cut out foil piece 10 is furthermore conveniently connected with the bag 15 and is placed at the wall 9 of the outlet channel 7 by the product flow.
  • the opening function can also be coupled with a closing function, so that a device is developed for the opening and resealing of a tubular bag 15 with a blade 2 , 6 affixed to a plug 19 and a sealing element 23 .
  • the plug ( 23 ) and the blade ( 2 , 6 ) are preferentially made of different materials, namely, the plug is made of a sealing material and the blade is made of a sturdy material.
  • the invention also concerns the production and application of preopened and resealed tubular bags, wherein the foil of the bag 15 in the area of the outlet channel 22 is pierced before delivery, and resealed with a sealing plug 24 until application; as well as preopened tubular bags of such a type, wherein the foil piece is punched out and removed before the sealing plug is inserted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
US11/023,249 2004-01-23 2004-12-27 Device for opening a tubular bag and its application Abandoned US20050161454A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003774.4 2004-01-23
DE102004003774A DE102004003774A1 (de) 2004-01-23 2004-01-23 Vorrichtung zum Öffnen eines Schlauchbeutels und deren Verwendung

Publications (1)

Publication Number Publication Date
US20050161454A1 true US20050161454A1 (en) 2005-07-28

Family

ID=34625798

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/023,249 Abandoned US20050161454A1 (en) 2004-01-23 2004-12-27 Device for opening a tubular bag and its application

Country Status (5)

Country Link
US (1) US20050161454A1 (de)
EP (1) EP1557363B1 (de)
JP (1) JP2005206254A (de)
AT (1) ATE385958T1 (de)
DE (2) DE102004003774A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080251535A1 (en) * 2007-04-16 2008-10-16 Kettenbach Gmbh & Co. Kg Container and method for opening a container
GB2482212A (en) * 2010-07-19 2012-01-25 2K Polymer Systems Ltd Re-closable Cartridge for Caulking Gun
US20120279988A1 (en) * 2011-05-02 2012-11-08 Sulzer Mixpac Ag Mixer for mixing at least two flowable components and dispensing apparatus
CN104781160A (zh) * 2012-10-11 2015-07-15 喜利得股份公司 挤出工具用的薄膜贮存容器和用于制造薄膜贮存容器的方法
CN108725919A (zh) * 2018-06-07 2018-11-02 云南白药集团股份有限公司 膏药切袋取片机及其应用

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018873A5 (nl) * 2009-08-28 2011-10-04 Cruysberghs Rudiger Inrichting voor het koppelen van een flexibele container aan een verdeelinrichting.
CN105173279A (zh) * 2015-09-02 2015-12-23 启东江天液压有限公司 牙膏挤压器

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767744A (en) * 1954-12-27 1956-10-23 Beerman Jack Liquid transfer device
US3595448A (en) * 1967-08-18 1971-07-27 Ewell Lee Carlton Sealant dispensers
US4267945A (en) * 1979-08-06 1981-05-19 Maynard Jr Walter P Liquid funnel and container piercing blade combination
US4355737A (en) * 1981-01-16 1982-10-26 Pongrass Robert G Fluid dispenser
US4469249A (en) * 1980-12-04 1984-09-04 Diemoulders Proprietary Limited Apparatus for dispensing liquids
US4600125A (en) * 1983-08-15 1986-07-15 Maynard Jr Walter P Liquid funnel and pouring spout combination
US5131566A (en) * 1989-10-05 1992-07-21 The Procter & Gamble Company Flowable product package incorporating a refill facilitating pouring spout
US5405053A (en) * 1993-08-04 1995-04-11 Uneco Engineering, Inc. Bulk bag opener and dispenser
US5915594A (en) * 1996-05-27 1999-06-29 Nakata; Keiichi Device for opening a sealant container, sealant container, and method of opening the sealant container
US6012610A (en) * 1996-02-05 2000-01-11 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Device for emptying a film tube
US6244311B1 (en) * 1994-12-29 2001-06-12 Bemis Manufacturing Company Method and apparatus for removing and disposing of body fluids
US6253804B1 (en) * 1999-11-05 2001-07-03 Minimed Inc. Needle safe transfer guard
US6394643B1 (en) * 1998-10-14 2002-05-28 Kettenbach Gmbh & Co. Kg Device for mixing two pasty materials, especially for mixing a dental impression material with a catalyst material
US6427872B1 (en) * 1998-03-18 2002-08-06 Southcorp Australia Pty. Ltd. Tote bins
US20020113089A1 (en) * 2001-01-24 2002-08-22 Klaus-Dieter Nehren Apparatus for emptying a hose bag
US6453956B2 (en) * 1999-11-05 2002-09-24 Medtronic Minimed, Inc. Needle safe transfer guard
US7073686B2 (en) * 2003-07-15 2006-07-11 Hanell Edward G Pouring spout

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1196382B (it) * 1984-01-03 1988-11-16 Diemoulders Pty Ltd Dispositivo dispensatore di liquidi
DE8405699U1 (de) * 1984-02-24 1984-08-02 Holle, Helmut, 6832 Hockenheim Gefaess zur aufnahme von fluessigkeitspackungen
DE4316807A1 (de) * 1993-05-19 1994-11-24 Friedhelm Schneider Dosierpistole für Schlauchbeutel mit hochviskosem Inhalt
AU4325700A (en) * 1999-03-26 2000-10-16 Allegiance Corporation A single-finger activated single-hand operated fluid applicator

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2767744A (en) * 1954-12-27 1956-10-23 Beerman Jack Liquid transfer device
US3595448A (en) * 1967-08-18 1971-07-27 Ewell Lee Carlton Sealant dispensers
US4267945A (en) * 1979-08-06 1981-05-19 Maynard Jr Walter P Liquid funnel and container piercing blade combination
US4469249A (en) * 1980-12-04 1984-09-04 Diemoulders Proprietary Limited Apparatus for dispensing liquids
US4355737A (en) * 1981-01-16 1982-10-26 Pongrass Robert G Fluid dispenser
US4600125A (en) * 1983-08-15 1986-07-15 Maynard Jr Walter P Liquid funnel and pouring spout combination
US5131566A (en) * 1989-10-05 1992-07-21 The Procter & Gamble Company Flowable product package incorporating a refill facilitating pouring spout
US5405053A (en) * 1993-08-04 1995-04-11 Uneco Engineering, Inc. Bulk bag opener and dispenser
US6244311B1 (en) * 1994-12-29 2001-06-12 Bemis Manufacturing Company Method and apparatus for removing and disposing of body fluids
US6012610A (en) * 1996-02-05 2000-01-11 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Device for emptying a film tube
US5915594A (en) * 1996-05-27 1999-06-29 Nakata; Keiichi Device for opening a sealant container, sealant container, and method of opening the sealant container
US6427872B1 (en) * 1998-03-18 2002-08-06 Southcorp Australia Pty. Ltd. Tote bins
US6394643B1 (en) * 1998-10-14 2002-05-28 Kettenbach Gmbh & Co. Kg Device for mixing two pasty materials, especially for mixing a dental impression material with a catalyst material
US6253804B1 (en) * 1999-11-05 2001-07-03 Minimed Inc. Needle safe transfer guard
US6453956B2 (en) * 1999-11-05 2002-09-24 Medtronic Minimed, Inc. Needle safe transfer guard
US20020113089A1 (en) * 2001-01-24 2002-08-22 Klaus-Dieter Nehren Apparatus for emptying a hose bag
US7073686B2 (en) * 2003-07-15 2006-07-11 Hanell Edward G Pouring spout

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080251535A1 (en) * 2007-04-16 2008-10-16 Kettenbach Gmbh & Co. Kg Container and method for opening a container
US8020728B2 (en) 2007-04-16 2011-09-20 Kettenbach Gmbh & Co. Kg Container and method for opening a container
GB2482212A (en) * 2010-07-19 2012-01-25 2K Polymer Systems Ltd Re-closable Cartridge for Caulking Gun
GB2482212B (en) * 2010-07-19 2012-12-26 2K Polymer Systems Ltd Multi-component dispenser
US20120279988A1 (en) * 2011-05-02 2012-11-08 Sulzer Mixpac Ag Mixer for mixing at least two flowable components and dispensing apparatus
US9149775B2 (en) * 2011-05-02 2015-10-06 Sulzer Mixpac Ag Mixer for mixing at least two flowable components and dispensing apparatus
CN104781160A (zh) * 2012-10-11 2015-07-15 喜利得股份公司 挤出工具用的薄膜贮存容器和用于制造薄膜贮存容器的方法
US10287061B2 (en) 2012-10-11 2019-05-14 Hilti Aktiengesellschaft Sheet-material container for a dispensing unit and method for producing a sheet-material container
CN108725919A (zh) * 2018-06-07 2018-11-02 云南白药集团股份有限公司 膏药切袋取片机及其应用

Also Published As

Publication number Publication date
JP2005206254A (ja) 2005-08-04
ATE385958T1 (de) 2008-03-15
EP1557363B1 (de) 2008-02-13
DE502005002783D1 (de) 2008-03-27
DE102004003774A1 (de) 2005-08-25
EP1557363A1 (de) 2005-07-27

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Legal Events

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AS Assignment

Owner name: HERAEUS KULZER GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NEHREN, KLAUS-DIETER;KNISPEL, GOTTFRIED;THELEN, MONIKA;AND OTHERS;REEL/FRAME:015995/0653;SIGNING DATES FROM 20050225 TO 20050310

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION