EP0452338B1 - Agrafe en u et dispositif pour fermer des sachets et des tubes - Google Patents

Agrafe en u et dispositif pour fermer des sachets et des tubes Download PDF

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Publication number
EP0452338B1
EP0452338B1 EP90900072A EP90900072A EP0452338B1 EP 0452338 B1 EP0452338 B1 EP 0452338B1 EP 90900072 A EP90900072 A EP 90900072A EP 90900072 A EP90900072 A EP 90900072A EP 0452338 B1 EP0452338 B1 EP 0452338B1
Authority
EP
European Patent Office
Prior art keywords
sealing
strip
clamp
closing
width
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.)
Expired - Lifetime
Application number
EP90900072A
Other languages
German (de)
English (en)
Other versions
EP0452338A1 (fr
Inventor
Herbert Dipl.-Ing. Niedecker
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
Priority claimed from DE19883844052 external-priority patent/DE3844052C1/de
Priority claimed from DE19893940262 external-priority patent/DE3940262A1/de
Application filed by Individual filed Critical Individual
Priority to AT90900072T priority Critical patent/ATE86205T1/de
Publication of EP0452338A1 publication Critical patent/EP0452338A1/fr
Application granted granted Critical
Publication of EP0452338B1 publication Critical patent/EP0452338B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/04—Applying separate sealing or securing members, e.g. clips
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/1616—Elements constricting the neck of the bag
    • B65D33/1641—Staples, clips or clamps made of metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/14—Bale and package ties, hose clamps
    • Y10T24/1457—Metal bands
    • Y10T24/1478—Circumferentially swagged band clamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/15—Bag fasteners
    • Y10T24/152—Swedged bag tie
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
    • Y10T29/5148—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53783—Clip applier

Definitions

  • the invention relates to a U-shaped closure clip made of tape material for bags and hoses and a closure device with a closure stamp and a die.
  • the closure clip consists of a clip base and two legs, the ends of which are bent outwards and form a separable connecting web with the leg ends of adjacent clips.
  • the section of the bag or tube eg a filled sausage casing
  • gathered into a braid is inserted into the clip, which in turn is held in a die which is shaped in accordance with the clip base.
  • the limbs of the clip are then cut off from the clip strand with the aid of a closing stamp that is moved against the die, bent around the packaging braid, and the braid is thus closed by the clip.
  • the ends of the legs are pressed against the outside of the legs.
  • the connecting web has an arcuate constriction on both sides, approximately symmetrical to the ideal dividing line, which reduces the bandwidth on both sides. This should prevent the burrs of the cutting edges from projecting laterally on the leg ends bent outwards after the closure. This has also been largely achieved so that in many cases it was no longer necessary, e.g. cut off the closing clip from the sausage before a second packaging.
  • the invention is based on the object of specifying a clamp closure for bags and hoses which ensures reliable closure and has no burrs projecting beyond the bandwidth, and a device suitable for its manufacture.
  • this object is achieved in that, in the case of a closure clip as part of a band-shaped closure clip strand, the reduction in the bandwidth of the leg ends also extends over a section of the legs adjoining the ends and, in the region of the reduced bandwidth, the outer edges of the ends and sections of the legs run approximately parallel. Due to their parallel edges, the narrower legs can be guided in the separating and closing punch during the closing process - for example with the help of the lateral edges of a groove or such a depression. The closing movement of the legs is not hindered by this, but its lateral pivoting out (center offset) is reliably avoided. At the same time, the separating and closing stamp also acts directly on the legs next to the bent leg ends and closes the clamp.
  • the reduction in the bandwidth is between 5 and 40%, preferably between 10 and 30%.
  • a preferred embodiment of the invention is that a groove or U-shaped embossing is attached to the underside of the band material at the transition from the clip leg to the connecting web, as is known per se from DE-A-17 61 616.
  • a hollow curvature is provided in the longitudinal direction on the bottom or top of the connecting web between the U-shaped impressions, in the middle of which the strip thickness is still is less than in the area of the U-shaped impressions.
  • the closure clip according to DE-A-17 61 616 already has a hollow curvature on the upper side of the connecting web. However, this hollow curvature is longer than the distance between the mutually facing limits of the U-shaped impressions. Therefore, a smaller strip thickness is created between the U-shaped embossing and the outlet of the curvature than in the area of the center of the curvature, i.e. at the later separation point.
  • the proposed preferred attachment of the hollow curvature on the bottom or top between the U-shaped embossments ensures that a predetermined bending point is created in the middle of the connecting web and prevents kinks at the U when winding and unwinding the staple strand -shaped impressions arise.
  • the strip thickness in the middle of the hollow curvature is less than in the region of the U-shaped embossment additionally means that, also as a result of the reduced strip width according to the invention, the smallest cross section of the strip material is present at the separation point.
  • the abrasion that often arises in the form of leaves is largely avoided during the separation process, while such abrasion occurs occasionally in a thicker overall cross section, especially in the case of food packaging.
  • the closing stamp of the closing device has a groove, the groove corresponds to the reduced width of the ends of the closure clip leg.
  • the closing punch according to the invention can also act directly on the other legs next to the leg ends, which are usually bent outwards, and exert closing pressure.
  • the depth of the groove must be less than the thickness of the leg ends bent outwards so that they are fully pressed.
  • the arrangement is preferably also such that the groove has a depth that decreases in its longitudinal direction (circumferential direction of the clip) from the center to the ends. This also ensures that the closing force is distributed as evenly as possible to the clamp during the closing process without impairing the guiding function of the groove in the region of the leg ends.
  • the ends 6 (see FIG. 2) of the legs 4 forming the connecting webs 2 and in each case a small section 3 of the legs 4 are reduced in bandwidth parallel to the longitudinal axis of the closure clip strand.
  • the side surfaces 6a of the leg ends 6 and the side surfaces 3a of the sections 3 of the legs 4 run parallel to one another.
  • the (later) separation point in the connecting web 2 is indicated by the dash-dotted line 2a.
  • the bracket base is designated 7.
  • FIGS. 2a, 3a and 3b show the closure clip strand 1 from FIG. 1 with U-shaped impressions 11 at the transition of the clip legs 4 to the connecting web 2.
  • FIG. 2b the closure clip strand 1 from FIGS. 2a, 3a and 3b with the Side surfaces 3a of section 3 with reduced bandwidth are shown in section.
  • the material cross section 12 in the middle of the connecting web 2 is larger than the material cross section 13 in the area of the U-shaped embossments 11 .
  • FIG. 3a therefore shows the closure clip strand 1 of FIG. 2a with a hollow bulge 14 on the underside of the connecting web 2 between the U-shaped impressions 11 and FIG. 3b with a hollow bulge 16 on the top of the connecting web 2 between the U-shaped ones Embossments 11.
  • the closure clip strand When rolling up and down, the closure clip strand only bends in the middle of the connecting web 2, the later separation point 2a.
  • the closing device according to the invention is now described.
  • the matrix 8 of which only the upper part, which is of interest here, is shown in FIG. 4, has a trough-shaped recess 22 which, at the beginning of a closing process, partially accommodates a closing clip 30, which is already closed in FIG. 4, and the necessary during the closing process Abutment forms.
  • a corrugation 24 on the bottom of the recess 22 holds the closure clip 30 in the desired position during the closing process, when this begins with the cutting of the clip 30 from a strip of contiguous clips (FIG. 1); for this purpose, the cutting edges 25 and 26 work together (on the closing punch).
  • the closing ram 9 is movable in the direction of arrow 28 (which can be a swiveling movement with a large swiveling radius). 4, 6 and 7, the closing punch 9 has reached its lower end position - at the end of a closing process.
  • the active surface 29 of the closing die 9 is, as can be seen in FIG. 4, concave.
  • a groove 10 is incorporated, the depth of which is greatest in the middle (at 31) and decreases towards the ends; in the example to zero.
  • the greatest depth of the groove is less than the thickness of the legs 4 of the bracket 30; it only reaches the (smaller) thickness of the leg ends 6 at their outlet.
  • Fig. 5 which only shows the closing stamp 9 shows the cross section of the groove 10, which is rounded in the corners 32.
  • two sealing devices of the type shown are arranged one behind the other, i.e. in the plane of the drawing, so that to the left of the 5 shown in Fig. 5 another sealing mirror formed mirror image (with the associated die). There is a certain space between the two stamps through which a cutting knife can be moved.
  • the drawings show the closing devices on an enlarged scale: the width of the closing punch 9 shown in FIG. 5 is for example 13 mm, the width of the groove 10 5 mm.
  • the closure clip 30 After a closure clip 30 has been separated from the clip strand - and before it is closed - the closure clip 30 has an upwardly open U-shape with diverging legs 4, to which leg ends 6 angled into the horizontal line are connected. These are grasped by the groove 10 during the closing process and guided laterally in this. With a further stroke of the closing die 9, the legs 4 bend around the packaging braid 5, the leg ends 6 firmly resting on the outside of the legs 4, which ultimately results in the shape shown in FIGS. 4 and 6. 6, the cut braid 5 of a sausage casing or the like is indicated within the closed bracket 30.
  • the closure clip 30 in FIG. 7 is the one described above, in which the width of the leg ends 6 and a subsequent part 3 of the legs 4 are reduced.
  • the width of the groove 10 is correspondingly reduced both sides of the groove 10 located sections of the active surface 29 of the sealing die 9 act at least at the end of the sealing process directly on the shoulders 4a of the locking clip 30, which are formed after the leg sections 3 of reduced width from the subsequent full-width sections.
  • the drawing shows that the leg ends 6 (of smaller width) as parts of the former connecting web 2 have been pressed centrally against the outer surface of the legs 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Packages (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Display Racks (AREA)
  • Package Frames And Binding Bands (AREA)
  • Bag Frames (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

Des agrafes en U pour fermer des sachets et des tubes formés dans une bande de matériau comprennent un fond (7) et deux branches (4) dont les extrémités sont courbées vers l'extérieur de façon à former une tige de liaison (2) par laquelle chaque agrafe est reliée de manière détachable aux agrafes d'une une rangée (1) d'agrafes. Lorsque l'on détache des agrafes individuelles de la rangée (1), des bavures de séparation qui dépassent de la largeur de l'agrafe en résultent, ce qui peut provoquer des dommages sur l'emballage ainsi fermé et sur d'autres emballages. Pour résoudre ce problème, la largeur de la bande d'agrafes est rétrécie des deux côtés de façon approximativement parallèle dans la zone des extrémités (6) des branches (4) sur une section (3) de celles-ci. Les extrémités (6) des branches repliées vers l'extérieur reposent ainsi uniformément sur le côté extérieur des branches (4), dans les limites de la largeur de la bande, sans bavures de séparation qui dépassent au-delà de la largeur de la bande. Un dispositif de fermeture de sachets et de tubes au moyen de ces agrafes de séparation comprend un poinçon de fermeture (9) qui coopère avec une matrice (8) et dans la surface de travail (29) duquel est ménagée une rainure (10) dont la largeur correspond à celle de l'agrafe de fermeture et dont la profondeur est inférieure à l'épaisseur totale de la branche utilisée pour le processus de fermeture. Pendant le processus de fermeture, la rainure (10) guide grâce à ses parois latérales les extrémités (6) des branches et assure un repoussage dépourvu de bavures des extrémités (6) des branches des agrafes qui sont serrées sur le côté extérieur des branches (4) des agrafes.

Claims (9)

  1. Agrafe en feuillard et en forme de U pour fermer des sachets et des bandes tubulaires, constituée d'un fond d'agrafe (7) et de deux branches (4) dont les extrémités (6) sont coudées vers l'extérieur, les extrémités des branches formant une réglette de liaison (2) séparable dans une bande (1) non séparée d'agrafes voisines et ayant une largeur de feuillard moindre des deux côtés,
       caractérisée en ce que la diminution de la largeur du feuillard s'étend également respectivement sur un tronçon (3) de la branche (4) qui se raccorde aux extrémités (6) et, dans la région de la largeur de feuillard moindre, les faces latérales (6a, 3a) des extrémités (6) et des tronçons (3) des branches (4) sont approximativement parallèles.
  2. Agrafe de fermeture suivant la revendication 1,
       caractérisée en ce que la largeur du feuillard est diminuée de 5 à 40 % et, de préférence, de 10 à 30 %.
  3. Agrafe de fermeture suivant la revendication 1 ou 2,
       caractérisée en ce que, sur la face inférieure du feuillard, des incisions (11) en forme de U sont ménagées respectivement aux transitions des branches d'agrafes (4) au pontet de liaison (2).
  4. Agrafe de fermeture suivant la revendication 3,
       caractérisée en ce que le pontet de liaison (12) comporte, entre les incisions (11) en forme de U dans la direction longitudinale, une voussure (14 ; 16) concave au milieu de laquelle l'épaisseur du feuillard (section transversale 15) est plus petite que dans la région de l'incision (11) en forme de U.
  5. Agrafe de fermeture suivant la revendication 4,
       caractérisée en ce que la voussure (14) concave est ménagée sur le côté inférieur de le pontet de liaison (2).
  6. Agrafe de fermeture suivant la revendication 4,
       caractérisée en ce que la voussure (16) concave est ménagée sur le côté supérieur de le pontet de liaison.
  7. Dispositif de fermeture de sachets et de bandes tubulaires, au moyen d'agrafes de fermeture en forme de U et en feuillards suivant l'une des revendications précédentes,
       comprenant un poinçon de fermeture (9) et une matrice (8) vers laquelle le poinçon de fermeture est déplacé de façon à recourber l'une vers l'autre les branches (4) d'une agrafe s'appuyant sur la matrice, et à les repousser vers le fond (7) de l'agrafe, la face active du poinçon de fermeture comportant une gorge (10) qui s'étend dans des directions du pourtour de l'agrafe et qui coopère, pendant la fermeture, par complémentarité de formes avec l'agrafe de fermeture,
       caractérisé en ce que la largeur de la gorge (10) correspond à la largeur moindre des extrémités des branches de l'agrafe et sa profondeur est inférieure à l'épaisseur des extrémités des branches (6) coudées vers l'extérieur.
  8. Dispositif suivant la revendication 7,
       caractérisé en ce que la gorge (10) a, dans sa direction longitudinale, une profondeur qui diminue du milieu (31) vers les extrémités.
  9. Dispositif suivant la revendication 7 ou 8,
       caractérisé en ce que les sommets (32) de la section transversale de la gorge sont arrondis.
EP90900072A 1988-12-28 1989-12-21 Agrafe en u et dispositif pour fermer des sachets et des tubes Expired - Lifetime EP0452338B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90900072T ATE86205T1 (de) 1988-12-28 1989-12-21 U-foermige verschlussklammer fuer beutel und schlaeuche und vorrichtung zu deren verschliessen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3844052 1988-12-28
DE19883844052 DE3844052C1 (en) 1988-12-28 1988-12-28 U-shaped closure clip for bags and tubes
DE3940262 1989-12-06
DE19893940262 DE3940262A1 (de) 1988-12-28 1989-12-06 Vorrichtung zum verschliessen von beuteln und schlaeuchen

Publications (2)

Publication Number Publication Date
EP0452338A1 EP0452338A1 (fr) 1991-10-23
EP0452338B1 true EP0452338B1 (fr) 1993-03-03

Family

ID=25875746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900072A Expired - Lifetime EP0452338B1 (fr) 1988-12-28 1989-12-21 Agrafe en u et dispositif pour fermer des sachets et des tubes

Country Status (13)

Country Link
US (2) US5247723A (fr)
EP (1) EP0452338B1 (fr)
JP (1) JP2927939B2 (fr)
AU (1) AU637594B2 (fr)
BR (1) BR8907862A (fr)
DE (1) DE58903688D1 (fr)
DK (1) DK169944B1 (fr)
ES (1) ES2040589T3 (fr)
FI (1) FI97045C (fr)
HU (2) HU211388B (fr)
LV (1) LV11020B (fr)
RU (1) RU2010756C1 (fr)
WO (1) WO1990007459A1 (fr)

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US5696803A (en) * 1996-08-07 1997-12-09 Motorola, Inc. Barrel shifter and method of making same
DE19700692A1 (de) * 1997-01-11 1998-07-23 Poly Clip System Gmbh & Co Kg Verschlußklammer für Beutel und Schläuche sowie Matrize für ihre Verarbeitung
ES1037953Y (es) * 1997-07-28 1998-11-01 Barroso Angel L Grapa para el cierre de embutidos.
DE19901220B4 (de) * 1999-01-14 2004-04-08 Poly-Clip System Gmbh & Co Kg Verfahren und Vorrichtung zum Verschließen von Verpackungen aus flexiblem Material
US20060174590A1 (en) * 2005-02-04 2006-08-10 Robert Pinto Net clip and clipper
US7565780B2 (en) * 2005-02-04 2009-07-28 Poly-Clip System Corp. Clip and clipper
DE202005014340U1 (de) 2005-09-09 2007-02-01 Tipper Tie Technopack Gmbh Verschlussklammer für einen Verpackungsschlauch und Vorrichtung zum Verarbeiten der Verschlussklammer
BRPI0707265A2 (pt) * 2006-01-27 2011-04-26 Poly Clip System Corp grampo e grampeador
DE102006017537A1 (de) * 2006-04-13 2007-10-18 Poly-Clip System Gmbh & Co. Kg Verschlussklammer und Verfahren zu deren Herstellung
DE202006012324U1 (de) * 2006-08-10 2006-12-21 Poly-Clip System Gmbh & Co. Kg Clipmaschine
DE102007011423A1 (de) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co Kg Schließwerkzeugbaugruppe
DE102007012776A1 (de) * 2007-03-16 2008-09-18 Poly-Clip System Gmbh & Co Kg Verschlussklammer mit Rundboden
US8808066B2 (en) * 2007-09-25 2014-08-19 Poly-Clip System Corp. Plastic wire clipper/stuffer
JP7040088B2 (ja) * 2018-02-09 2022-03-23 マックス株式会社 結束具
HUE056756T2 (hu) * 2019-03-05 2022-03-28 Noguera Sagar Lorenzo Klipsz kolbászbél összeszorítással történõ lezárására

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DE26556C (de) * 1883-05-09 1884-03-29 E C Kromschroeder Neuerung an mehrfachen Einfräsungen im Maule de Zangen zum Krampen de Schweine
GB324488A (en) * 1928-12-22 1930-01-30 William Alexander Harrison Improvements in or relating to spring surfaces for upholstery
US2709255A (en) * 1951-12-19 1955-05-31 Frank Joseph James Machines for fastening closures
FR1073339A (fr) * 1951-12-19 1954-09-23 Machine pour ligaturer des enveloppes souples
GB920335A (en) * 1958-08-19 1963-03-06 Amp Inc Improvements in closures for flexible wrapping material
CH447109A (de) * 1964-12-18 1967-11-30 Tipper Tie Inc Verfahren zum Anbringen einer U-förmigen Klammer um einen zu verschliessenden Gegenstand und Heftapparat zur Durchführung des Verfahrens
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US3913628A (en) * 1971-05-10 1975-10-21 Kartridg Pak Co Method and apparatus for hermetically sealing a package
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DE3715626A1 (de) * 1987-05-11 1988-12-01 Niedecker Herbert U-foermige verschluss-klammer fuer beutel und schlaeuche
US4807345A (en) * 1987-08-07 1989-02-28 Delaware Capital Formation, Inc. Manually operated clip attachment apparatus

Also Published As

Publication number Publication date
AU637594B2 (en) 1993-06-03
US5247723A (en) 1993-09-28
LV11020B (en) 1996-06-20
FI97045B (fi) 1996-06-28
FI912929A0 (fi) 1991-06-17
AU4810190A (en) 1990-08-01
HU211388B (en) 1995-11-28
JPH04502895A (ja) 1992-05-28
ES2040589T3 (es) 1993-10-16
WO1990007459A1 (fr) 1990-07-12
DE58903688D1 (de) 1993-04-08
JP2927939B2 (ja) 1999-07-28
HUT58251A (en) 1992-02-28
DK169944B1 (da) 1995-04-10
DK126391A (da) 1991-06-27
US5497645A (en) 1996-03-12
RU2010756C1 (ru) 1994-04-15
EP0452338A1 (fr) 1991-10-23
BR8907862A (pt) 1991-10-22
FI97045C (fi) 1996-10-10
HU900383D0 (en) 1991-09-30
LV11020A (lv) 1996-02-20
DK126391D0 (da) 1991-06-27

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