US3805489A - Automatic bag shaping and bag top forming apparatus - Google Patents

Automatic bag shaping and bag top forming apparatus Download PDF

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Publication number
US3805489A
US3805489A US00244382A US24438272A US3805489A US 3805489 A US3805489 A US 3805489A US 00244382 A US00244382 A US 00244382A US 24438272 A US24438272 A US 24438272A US 3805489 A US3805489 A US 3805489A
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US
United States
Prior art keywords
conveyor
bag
gate
extending
frame
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
US00244382A
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English (en)
Inventor
R Odom
G Lieder
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.)
Amcor Flexibles North America Inc
Original Assignee
Bemis Co Inc
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 Bemis Co Inc filed Critical Bemis Co Inc
Priority to US00244382A priority Critical patent/US3805489A/en
Priority to CA146,945A priority patent/CA977720A/en
Priority to GB3720572A priority patent/GB1372788A/en
Priority to JP47085454A priority patent/JPS4919992A/ja
Priority to DE2242743A priority patent/DE2242743A1/de
Priority to FR7235392A priority patent/FR2181268A5/fr
Priority to IT53352/72A priority patent/IT966323B/it
Application granted granted Critical
Publication of US3805489A publication Critical patent/US3805489A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap

Definitions

  • ABSTRACT An automatic bag shaping and bag top forming machine for receiving a filled bag and having horizontally elongated bottom and side endless conveyors with one side conveyor and bottom conveyor extending a substantial distance rearwardly of the other side conveyor, a side conveyor member mounted adjacent the shorter side conveyor for movement between an extended position extending substantially the same distance rearwardly as the longer side conveyor and a retracted position a substantial distance forwardly of the extended position, a bag top forming assembly mounted for vertical and horizontal movement to shape the bag top to form gussets as the bag is being conveyed by the conveyors, a bag top holding assembly for, retaining the bag top in a shaped condition as the bag top forming assembly is moved vertically upwardly from the bag top and the bag is being conveyed by the above conveyors to conveyors for the bag top that retains the bag top in a shaped condition as the bag is moved adjacent the sewing machine, and machines for picking up an empty bag and moving the bag above the bottom conveyor when the conveyor member is in its retracted position and filling
  • a bag shaping and bag top forming machine having conveyor members for conveying a filled bag and shaping the top of the filled bag for a sewing or taping operation as the bag is being conveyed.
  • One of the objects of this invention is to provide for usage with machinery for automatically picking up an empty bag, fill the bag and drop the filled bag, a bag top forming and shaping machine that includes new and novel apparatus for aiding in shaping a bag as it is filled, and retaining the filled bag in an upright condition as the filled bag is dropped and initially conveyed in a forward direction.
  • FIG. 1 is a fragmentary vertical elevational view of the apparatus of this invention with portions broken away, a portion of said view being generally taken along the line and in the direction of the arrows 11 of FIG. 3, and a portion of the view showing the extensible conveyor assembly being generally taken along the line and in the direction of the arrows lA-lA of FIG. 3; a part of the bag opening and filling apparatus with which this invention is used being partially diagrammatically illustrated;
  • FIG. 2 is an enlarged fragmentary vertical elevational view generally taken along the line and in the direction of the arrows 2- -2 of FIG. 3 of the extensible conveyor assembly with an intermediate part thereof broken away;
  • FIG. 3 is a top view of the conveyor assemblies of this invention with the extensible conveyor assembly shown in a retracted condition in solid lines and part. thereof shown in an extended condition in dotted lines; and diagrammatically indicates in block form the magazine, bag opening and bag filling machines with which the apparatus of this invention is utilized;
  • FIG. 4 shows a fragmentary transverse elevational view of the bag top shaping assembly, and one of the bag top holding assemblies in a bag top holding position in solid lines, and bag top holding bars in their datum position in dotted lines, said view being generally taken along the line and in the direction of the arrows 4-4 of FIG. 1;
  • FIG. 5 is a diagrammatic view of the bag top shaping fingers in a position that the bag top has been shaped to provide a gussetted closure preparatory to a bag top sewing or taping operation;
  • FIG. 6 is a schematic showing of the hopper spout assembly (turned 90 relative its actual position) of the bag filling machine, and the bottom conveyor assem bly, various hydraulic piston cylinder combinations and part of the control circuitry of the apparatus of this invention.
  • the apparatus of this invention includes a frame generally designated 11. Mounted on the frame 11 to extend longitudinally, including a substantial distance longitudinally rearwardly of the frame is a V-trough conveyor assembly 12. Mounted by the frame to be in part in overhanging relationship to the V-trough conveyor assembly is the first longitudinally elongated side conveyor assembly, generally designated 14.
  • the conveyor assembly 14 includes a pair of spaced horizontal plates 15 that at their one ends mount a drive shaft 16a on which drive rolls 16 are mounted; at their opposite ends mount idler rolls l7; and intermediate the rolls 16, 17, mount back up and tensioning rolls 18. Endless conveyor belts 19 are extended around the rolls 16, 17, 18 to have inner runs 19a in overhanging relationship to one side of the conveyor 12.
  • the plates 15 are mounted in vertical spaced relationship by brackets 20 which in turn are mounted on transverse rods 21 that are mounted by the adjacent longitudinal frame member 11a by mounting members 13.
  • the conveyor assembly 14 extends a substantial distance rearwardly of the frame 1 l as will be more fully indicated hereinafter.
  • the apparatus 10 includes a second side conveyor assembly, that has a conveyor, generally designated 22 and an extension assembly generally designated 23.
  • the conveyor 22 is of substantially the same construction as conveyor assembly 14, other than it does not extend nearly the same distance rearwardly of the frame as assembly 14.
  • the inner runs 24a of the belts 24 of the conveyor 22 are in overhanging relationship to the V-trough conveyor assembly on the side opposite from the inner runs 19a.
  • the extension assembly 23 includes a longitudinally elongated guide rod 26 that is slidably mounted for horizontal longitudinal movement by a pair of spaced blocks 27 which in turn are mounted by the upper plate 25 of the conveyor 22.
  • the gate Fixedly attached to the guide rod are a pair of longitudinally spaced blocks 28 which in turn are fixedly secured to the upper leg 29a of the longitudinally elongated gate 29.
  • the gate from at least adjacent the rearward end portion thereof to the forward end portion thereof has a generally planar vertical surface facing the conveyor assembly 14, the gate being provided with a horizontally extending cutout 30 that opens forwardly to have the upper and lower inner runs 24a extend therethrough to be slightly more closely adjacent the conveyor assembly 14 than the planar surface of the gate.
  • the gate is of generally U-shaped configuration and has upper and lower legs 29a and a rearward web portion 29b.
  • a two-way acting, horizontal piston cylinder combination 33, 34 includes a cylinder 33 dependingly mounted by the lower plate 25 in a fixed position by a pair of blocks 35.
  • the piston cylinder combination 33, 34 includes a piston rod 34 mounted for longitudinal movement parallel to the inner runs 240, the rear end of the piston rod being fixedly secured to a block 36 that is in turn bolted to the lower leg 29a of the gate.
  • the gate is mounted for horizontal movement between a position (solid line position of FIGS. 2 and 3) that the web portion 29b is closely adjacent and extends rearwardly of the idler rolls 17 of the conveyor 22; and a second position (dotted line position of FIGS.
  • a bracket 38 is mounted by the plates 15 to extend substantially transversely across the entire width of the V- trough conveyor assembly in overhanging relationship thereto at a location closely adjacent the idler rolls 17 of conveyor 14; the rearward edge portion of the web 29b being closely adjacent the bracket when the gate in its dotted extended condition of FIGS. 1 and 3.
  • a bag top shaping assembly Mounted on the frame 11 above the conveyor assemblies is a bag top shaping assembly, generally designated 45, that includes parallel linkages 46 having one ends pivotally connected at 43 to plates 42 that are dependingly attached to the frame and opposite ends pivotally connected at 44 to brackets 47.
  • the brackets 47 mount a generally horizontal, longitudinally elongated subframe 48, a piston cylinder combination 49 having a cylinder pivotally connected to the frame 11 and a piston rod pivotally connected to the subframe for vertically moving the subframe.
  • the subframe dependingly mounts a pair of longitudinally elongated horizontal rods 50 for translatory longitudinal slidable movement relative thereto.
  • a two-way acting piston cylinder combination 54 includes a cylinder fixedly mounted by the sub-frame and a piston rod connected to a bracket 55 to move therewith, the bracket 55 in turn being mounted on the rods 50 for moving said rods horizontally therewith.
  • the bracket 55 mounts a cylinder of a two-way acting piston cylinder combination 56 in a fixed position relative thereto, the piston rod of said combination in turn being attached to a mounting member 57 that dependingly mounts a pair of transversely spaced fingers 58 to move therewith.
  • the mounting member 57 is mounted on the rods 50 for horizontal slidable movement relative thereto.
  • a bracket 60 is mounted in a fixed position on the rods 50 and in turn mounts a two-way acting horizontal piston cylinder combination 61 that includes a cylinder mounted by the bracket 60 in a fixed position and a piston rod connected to a mounting member 62 for moving the mounting member therewith.
  • the mounting member 62 is slidable mounted on the rods 50 and in turn dependingly mounts a pair of transversely spaced depending fingers 63 to move therewith.
  • a first mounting member 65 is mounted on the rods 50 for movement therewith, the mounting member 65 in turn mounting a finger 66 which has a vertically depending portion.
  • a second mounting member 65 dependingly mounts a finger 68 in a fixed position relative the rods 50.
  • Each bag top holding assembly includes a piston cylinder combination 77 having the cylinder thereof pivotally connected to the adjacent plate 76 by a pivot member 78 and a piston rod pivotally connected at 83 to a bracket 80.
  • Bracket 80 is pivotally connected at 79 to the adjacent plate.
  • a mounting member 81 has one end attached to the bracket 80 to move therewith and an opposite end connected to a longitudinally elongated holding bar 82.
  • Members 77-81 mount and move the holding bar between the dotted line elevated position of FIG. 4 that is substantially transversely spaced from the path of travel of the top of a filled bag on the bottom conveyor and a lower transverse inward position to butt against one side of bag top portion of the bag while the fingers in the bag top shaping assembly are in the relative positions shown in FIG. 5.
  • a second bag top holding assembly, generally designated 85 of the same construction as the bag top holding assemblies 75.
  • the bars 82 of assemblies 85 extend longitudinally forwardly of the side conveyor assemblies 14, 22.
  • the entry nips of a pair of endless conveyor belts 89 of a conveyor assembly 90 are located adjacent the rearward end portions of the bars 82 of the assemblies 85 and vertically above the bottom conveyor for retaining the bag top in a shaped, closed condition and the bag upright as the bag is conveyed forwardly on the bottom conveyor assembly.
  • the conveyor belts 89 extend up to the conventional bag top sewing machine and/or taping machine 91 for retaining the bag top in a proper condition for the sewing and/or taping operation by the bag top sewing and/or taping machine 91 that may be mounted on frame 11 or on a separate frame 11 (not shown).
  • the bottom conveyor extends beneath the machine 91.
  • a motor 94 is mounted on the frame 11 and has a shaft extension 95 that is drivingly connected to the belts 89 and to the sprockets 96a keyed on shafts 16a to drive the belts 89, 19a, 24a through drive mechanism, generally designated 96.
  • bag magazine, bag opening and bag filling machine designated 98 may be of the construction described in co-pending application Ser. No. 30,681, filed Apr. 22, 1970 other than the conveyors thereof for carrying the filled bag are not used, the machine 98 will not be described; said pending application being incorporated herein by reference.
  • the bag In a position clamped on the hopper spout 97 of the bag filling machine, the bag depends to a lower elevation than the gate 29, but is vertically spaced from the belts of the V-trough conveyor assembly.
  • a switch 110 is actuated to operate valve 111 to apply fluid under pressure to the end of the cylinder 33 for moving its piston rod in a direction of arrow 102 toward bracket 38.
  • the gate 29 Prior to the time the charge is dumped into the bag clampedon the hopper spout assembly, the gate 29 is in its extended position whereby the bag side walls extend downwardly intermediate the inner runs 19a and the gate, and the rear edge portion of the bag is adjacent the bracket 38.
  • members 19a, 29 and 38 act to limit the bulging of thebag in horizontal directions therebetween.
  • the hopper spout mechanism automatically releases the bag to drop it on the bottom conveyor, and at the same time operates switch 110 whereby valve 1 11 is operated to apply fluid under pressure to the end of the cylinder 33 for moving the piston rod 34 in the direction of arrow 100 at substantially the same rate that the inner runs are moving.
  • the filled bag dropped onto the bottom conveyor is thence conveyed in a forward direction (arrow 100) and the gate moves toward its retracted position preparatory to another empty bag being swung up onto the hopper spout assembly.
  • the assembly 45 When the assembly 45 is moved to its lowermostposition, it operates a switch (not shown) for applying fluid under pressure to cylinders 56, 61 forretracting their piston rods to move the fingers 5'8, 63 longitudinally away from one another at the same rate of speed. In so moving, the opposite side wall portionsof the bag are moved into abutting relationship to fingers 66, 68 respectively whereby the side wallsof the bag are drawn taut and together to a position generallyiindicated in FIG. 5 to form gussets in the end walls.
  • a switch (not shown) to operate valves (not shown) to first operate the cylindersof the assemblies 75 to move the bars 82 thereof to their solid positions on opposite sides of the bag top just after the fingers have moved to FIG. 5.position for retaining the bag top side-walls closely adjacent one another in the formed condition; and as the bag is conveyed further forwardly to in part extend between the assemblies 85,the bars 82 of assemblies 85 are moved together.
  • a switch (not shown) is engaged by the bag whereby the valve for the cylinders of assemblies return its bars '82 to their datum dotted line positions of FIG. 4.
  • the bracket 55 operates switch 104 that operates valve 106 to apply fluid under pressure to cylinder 49 for elevating the subframe. Thereafter the .bracket 55 engages a switch 112 that operated valve 107 to retract the piston rod of combination 54 and combinations 56, 61 to extend their piston rods. At this time, the bag top moves into the entry nip of the belts 89 to be retained in a closed position as it is moved up to the machine 91 to have the sewing and/or taping operation performed by machine 91; and the bars 82 of the assemblies are thenceretracted to datum positions.
  • bag shaping and bag top forming apparatus comprising a longitudinally elongated frame having a front end and a rear end, conveyor means mounted on the frame for conveying a filled bag from the rear end to the front end, means mounted on the frame for forming and'shaping the bag top of 'a filled bag on the conveyor means preparatory to forming a bag top closure, said conveyor means including a first side conveyor having an inner run and a second side conveyor transversely spaced from the first conveyor and extending a substantial distance rearwardly of the first conveyor, longitudinally extensible means mounted on the frame adjacent the first conveyor for movement between a first position extending substantially as far rearwardly as the second conveyor and a second position substantially forwardly of the first position to cooperate with the secondv conveyor to shape the bag as it is being filled and convey the filled bag forwardly, the extensible means comprising a gate member having a generally planar surface parallel to the direction of movement
  • conveyor apparatus comprising a longitudinal elongated frame having a rear end portion adjacent the bag-filling machine and a front end portion remote therefrom, a longitudinally elongated bottom conveyor mounted on the framefor supportingly carrying a filled bag in forward direction and having a rear end portion extending beneath a portion of a bag filling machine-to receive the dropped bag, a first longitudinally elongated endless side conveyor mounted on the frame and having an inner run extending above one side portion of the bottom conveyor, a second longitudinally elongated endless side conveyor mounted on the frame and having an inner run extending above the side portion of the bottom conveyor opposite the first conveyor, said second conveyor having a rear end portion extending rearwardly to a location transversely adjacent the rear portion of the bottom conveyor and the first conveyor having a rear end portion sufficiently longitudinally forwardly of the second conveyor rear end portion to permit a bag being moved transversely over the bottom conveyor rear portion while
  • conveyor apparatus comprising a longitudinal elongated frame having a rear end portion adjacent the bag filling machine and a front end portion remote therefrom, a longitudinally elongated bottom conveyor mounted on the frame for supportingly carrying a filled bag in a forward direction and having a rear end portion extending beneath a portion of a bag filling machine to receive the dropped bag, a first longitudinally elongated endless side conveyor mounted on the frame and having an inner run extending above one side portion of the bottom conveyor, a second longitudinally elongated endless side conveyor mounted on the frame and having an inner run extending above the side portion of the bottom conveyor opposite the first conveyor, said second conveyor having a rear end portion extending rearwardly to a location transversely adjacent the rear portion of the bottom conveyor and the first conveyor having a rear end portion sufficiently longitudinally forwardly of the second conveyor rear end portion to permit a bag being moved transversely over the bottom conveyor rear portion while extending to
  • the apparatus of claim 3 further characterized in that the first conveyor has a rear portion and that said gate means has a front portion that extends forwardly of the first conveyor rear portion when the gate means is in its second position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Package Closures (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
US00244382A 1972-04-17 1972-04-17 Automatic bag shaping and bag top forming apparatus Expired - Lifetime US3805489A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00244382A US3805489A (en) 1972-04-17 1972-04-17 Automatic bag shaping and bag top forming apparatus
CA146,945A CA977720A (en) 1972-04-17 1972-07-12 Automatic bag shaping and bag top forming apparatus
GB3720572A GB1372788A (en) 1972-04-17 1972-08-09 Bag shaping and bag top forming apparatus
JP47085454A JPS4919992A (US08124317-20120228-C00026.png) 1972-04-17 1972-08-28
DE2242743A DE2242743A1 (de) 1972-04-17 1972-08-31 Sackbearbeitungsvorrichtung
FR7235392A FR2181268A5 (US08124317-20120228-C00026.png) 1972-04-17 1972-10-05
IT53352/72A IT966323B (it) 1972-04-17 1972-10-13 Apparecchiatura per formatura e chiusura automatica di sacchi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00244382A US3805489A (en) 1972-04-17 1972-04-17 Automatic bag shaping and bag top forming apparatus

Publications (1)

Publication Number Publication Date
US3805489A true US3805489A (en) 1974-04-23

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US00244382A Expired - Lifetime US3805489A (en) 1972-04-17 1972-04-17 Automatic bag shaping and bag top forming apparatus

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US (1) US3805489A (US08124317-20120228-C00026.png)
JP (1) JPS4919992A (US08124317-20120228-C00026.png)
CA (1) CA977720A (US08124317-20120228-C00026.png)
DE (1) DE2242743A1 (US08124317-20120228-C00026.png)
FR (1) FR2181268A5 (US08124317-20120228-C00026.png)
GB (1) GB1372788A (US08124317-20120228-C00026.png)
IT (1) IT966323B (US08124317-20120228-C00026.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012886A (en) * 1973-10-23 1977-03-22 Olinkraft, Inc. Bag push-off in-feed method
US4257209A (en) * 1978-05-16 1981-03-24 Windmoller & Holscher Apparatus for gathering the flattened filling ends of filled large sacks by means of zig-zag folding
US4370845A (en) * 1979-08-15 1983-02-01 Perolls Roland F Methods of and apparatus for closing bag mouths
USRE31853E (en) * 1977-03-17 1985-03-26 Fmc Corporation Package flap folding apparatus
US4704845A (en) * 1982-10-16 1987-11-10 Gebruder Buhler Ag Method and apparatus for closing bags and a plant for bagging bulk materials
US5152124A (en) * 1990-07-27 1992-10-06 Fuji Photo Film Co., Ltd. Apparatus for filling and sealing bags
US5279094A (en) * 1991-06-04 1994-01-18 Bemis Company, Inc. Apparatus for closing bags
US6054665A (en) * 1997-01-17 2000-04-25 Focke & Co. (Gmbh Co.) Apparatus for checking (cigarette) packs
US20070199800A1 (en) * 2006-02-28 2007-08-30 Weigang Qi Conveyor system for high speed, high performance bagger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456805B (sv) * 1987-09-28 1988-11-07 Exploweld Ab Saett att explosionssvetsa legerad aluminium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037200A (en) * 1931-12-21 1936-04-14 John A Rosmait Bag sealing method and apparatus
US2514620A (en) * 1948-01-12 1950-07-11 California & Hawaiian Sugar Bag-closing apparatus
US3058272A (en) * 1960-03-21 1962-10-16 Goodman Mfg Co Method and apparatus for packaging granular materials
US3167897A (en) * 1961-11-02 1965-02-02 Bemis Bro Bag Co Automatic bag top forming and sewing apparatus
US3469367A (en) * 1966-05-31 1969-09-30 Bemis Co Inc Bag feeding and filling apparatus
US3676977A (en) * 1970-09-17 1972-07-18 St Regis Paper Co Bag applicator method and apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037200A (en) * 1931-12-21 1936-04-14 John A Rosmait Bag sealing method and apparatus
US2514620A (en) * 1948-01-12 1950-07-11 California & Hawaiian Sugar Bag-closing apparatus
US3058272A (en) * 1960-03-21 1962-10-16 Goodman Mfg Co Method and apparatus for packaging granular materials
US3167897A (en) * 1961-11-02 1965-02-02 Bemis Bro Bag Co Automatic bag top forming and sewing apparatus
US3469367A (en) * 1966-05-31 1969-09-30 Bemis Co Inc Bag feeding and filling apparatus
US3676977A (en) * 1970-09-17 1972-07-18 St Regis Paper Co Bag applicator method and apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012886A (en) * 1973-10-23 1977-03-22 Olinkraft, Inc. Bag push-off in-feed method
USRE31853E (en) * 1977-03-17 1985-03-26 Fmc Corporation Package flap folding apparatus
US4257209A (en) * 1978-05-16 1981-03-24 Windmoller & Holscher Apparatus for gathering the flattened filling ends of filled large sacks by means of zig-zag folding
US4370845A (en) * 1979-08-15 1983-02-01 Perolls Roland F Methods of and apparatus for closing bag mouths
US4704845A (en) * 1982-10-16 1987-11-10 Gebruder Buhler Ag Method and apparatus for closing bags and a plant for bagging bulk materials
US5152124A (en) * 1990-07-27 1992-10-06 Fuji Photo Film Co., Ltd. Apparatus for filling and sealing bags
US5279094A (en) * 1991-06-04 1994-01-18 Bemis Company, Inc. Apparatus for closing bags
US6054665A (en) * 1997-01-17 2000-04-25 Focke & Co. (Gmbh Co.) Apparatus for checking (cigarette) packs
US20070199800A1 (en) * 2006-02-28 2007-08-30 Weigang Qi Conveyor system for high speed, high performance bagger
US7281622B2 (en) * 2006-02-28 2007-10-16 Owens Corning Intellectual Capital, Llc Conveyor system for high speed, high performance bagger

Also Published As

Publication number Publication date
IT966323B (it) 1974-02-11
CA977720A (en) 1975-11-11
GB1372788A (en) 1974-11-06
FR2181268A5 (US08124317-20120228-C00026.png) 1973-11-30
JPS4919992A (US08124317-20120228-C00026.png) 1974-02-21
DE2242743A1 (de) 1973-10-25

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