Severing Of Container Or Container Blank From Web Patents (Class 493/235)
  • Patent number: 10730647
    Abstract: A food packaging system includes, in a serially coupled, operational configuration: a) an automated bag forming system; b) a bag rotator; c) a blade wheel; d) a bag top opener assembly; e) a funnel positioning system; f) a hopper system; g) an oil injection system; h) a sealing station; i) a crimping assembly; and j) an offloading assembly. A carriage conveyor system is configured to receive a bag formed by the automated bag forming system and convey the bag sequentially from component b) to component j).
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: August 4, 2020
    Inventors: Paul A. Olson, Donald W. Olson, Eric D. Olson, Robert D. Funk
  • Patent number: 10479042
    Abstract: The machine and the method disclosed use a panel plastic film that is longitudinally folded into top and bottom halves before slitting along the fold. The halves are simultaneously transported ensuring print registration and requiring a single accumulator in the longitudinal direction. Side gusset pieces are inserted between the top and bottom halves through an initial gap enlarged by a pair of timing belts. The top and bottom halves partly sealed with the side gusset pieces are pulled away from each other and a means gives the ends of the side gusset pieces the shape of a rhomboid. Bottom gusset film is vertically sealed along the vertical axis of the rhomboid shaped ends of the side gusset pieces with the seal extending to the folded portions of the top and bottom halves. Longitudinal sealing and transverse sealing before cutting ensure sealing of the bottom gusset and side gussets.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: November 19, 2019
    Assignee: Mamata Machinery Pvt. Ltd.
    Inventors: Jayeshkumar Dahyabhai Patel, Snehal Kanaiyalal Patel, Kokeshkumar Kirtikumar Patel
  • Publication number: 20140274636
    Abstract: A bag machine for production of bags made of paper material includes an unwinding device to unwind and feed paper material in a transport direction (x), a device to produce weakening lines partially offset in direction (x), so that a first wall of the bag continues in at least one tab that extends beyond a second wall, a tube-forming device, in which side areas are folded to form an overlapping area, a separation device to separate tube sections along the weakening lines, and a bottom formation device, in which areas of a leading end of the tube section are folded and fastened onto an outer wall thereof. The machine has a device for application of adhesive surfaces to the paper material, with which an adhesive surface is applied to an area of the paper material that represents the side of the tab facing the second wall in the finished bag.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 18, 2014
    Applicant: Windmoeller & Hoelscher KG
    Inventor: Joerg Christian THIES
  • Patent number: 8777826
    Abstract: Plastic bags are successively made by intermittently feeding upper and lower panel material webs that are temporarily fixed to side gusset material layers. The webs are joined along a joint line. One web is folded along a first line spaced from the joint line to open the webs and form a surface on the webs. One gusset layer is folded along the first line to open the gusset layers along with an auxiliary gusset portion and form a surface on the layers of the auxiliary gusset portion. One web is turned along a turned line formed between the joint line and the first line to make a turned portion formed in one web and superimposed on the surfaces. The other web is folded along a second line spaced from the joint line to make a folded portion in the other web and superposed on the surfaces.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 15, 2014
    Assignee: Totani Corporation
    Inventor: Mikio Totani
  • Patent number: 8777827
    Abstract: The invention relates to a device for forming sleeve-like foil envelopes from a continuous flat strip of a sleeve-like foil material, comprising supply means (12) for supplying the continuous flat strip of sleeve-like foil material (1), cutting means for making a cut in this strip of sleeve-like foil material over the full width thereof so as to obtain the individual sleeve-like foil envelopes, as well as discharge means (20a-20b) for discharging the individual sleeve-like foil envelopes from the device. The device of the invention is characterized in that the device comprises rotational element means (20?) arranged for imparting a rotary motion during operation to the sleeve-like envelope to be discharged from the device. By imparting a rotary motion to an individually formed sleeve-like foil envelope while it is being discharged from the device it is achieved that the foil envelope will remain open, making it possible to place the envelope round a container in a simple and effective manner.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: July 15, 2014
    Assignee: Fuji Seal International, Inc.
    Inventor: Wilhelmus Johannes Franciscus Hoeben
  • Publication number: 20140128235
    Abstract: A system and method of manufacturing reinforced bags having reinforcing elements applied about the bags to support the bags in an opened and/or upstanding configuration. A web of bag material can be fed from a supply and can be folded and secured to form the bags. A series of reinforcing strips can be fed through an adhesive application station for application of an adhesive material thereto in a desired pattern. The reinforcing strips and bags are brought into registration and are adhesively attached to form the reinforced bags.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 8, 2014
    Applicant: Graphic Packaging International, Inc,
    Inventors: Joseph C. Walsh, JR., Jeffrey T. Sloat
  • Publication number: 20130156352
    Abstract: The invention concerns a method for the production of sacks from tubular pieces (1) which include plastic material in which at least at one end area a bottom rectangle (2) is laid around a fold line (3) to form triangular pockets (6, 7) (6, 7), where said bottom rectangle comprises flaps (4, 5) (4, 5), parts of the flaps (4, 5) (4, 5) of the bottom rectangle (2) are folded back, and a bottom cover sheet (21) is applied at least to areas of the flaps (4, 5) of the bottom rectangle (2) and/or to areas (6, 7) of the triangular pockets and connected to them. According to the invention a bottom rectangle (21) is used which includes at least in part air-permeable material.
    Type: Application
    Filed: August 15, 2011
    Publication date: June 20, 2013
    Applicant: Windmoeller & Hoelscher KG
    Inventor: Uwe Koehn
  • Patent number: 7966788
    Abstract: A method and a device for packaging product portions in a wrapper are proposed, wherein at least two webs of a packaging material are aligned parallel, with the longitudinal edges facing each other overlapping, and each transported towards one upwardly open folding shaft, the webs are severed transverse to the overlapping longitudinal edges, creating flat blanks of the wrappers, and the blanks are folded into the folding shaft , creating an upwardly open wrapper, whereupon the product portion is placed in the open wrappers and the upwardly protruding sections of the wrappers are then turned inward while overlapping. The blanks, whose inner edges overlap, are guided in frictional engagement to their folding position above the folding shafts, whereupon the longitudinal edges of the overlapping blanks facing each other are, lifted together , whereupon the blanks are released by releasing the frictional engagement.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: June 28, 2011
    Assignee: Benz & Hilgers GmbH
    Inventor: Karl Josef Rütter
  • Publication number: 20100093507
    Abstract: The invention relates to a device for forming sleeve-like foil envelopes from a continuous flat strip of a sleeve-like foil material, comprising supply means (12) for supplying the continuous flat strip of sleeve-like foil material (1), cutting means for making a cut in this strip of sleeve-like foil material over the full width thereof so as to obtain the individual sleeve-like foil envelopes, as well as discharge means (20a-20b) for discharging the individual sleeve-like foil envelopes from the device. The device of the invention is characterised in that the device comprises rotational element means (20?) arranged for imparting a rotary motion during operation to the sleeve-like envelope to be discharged from the device. By imparting a rotary motion to an individually formed sleeve-like foil envelope while it is being discharged from the device it is achieved that the foil envelope will remain open, making it possible to place the envelope round a container in a simple and effective manner.
    Type: Application
    Filed: January 10, 2008
    Publication date: April 15, 2010
    Applicant: FUJI SEAL INTERNATIONAL INC.
    Inventor: Wilhelmus Johannes Franciscus Hoeben
  • Publication number: 20100087305
    Abstract: A method and apparatus for making rolls of wave cut bags, and a roll of bags is disclosed. A film is weakened along a generally straight line in a generally cross machine direction. The film is also weakened a wave shape, and the wave shape weakenings are alternated with the straight line weakenings. The film is folded in a cross machine direction, and the straight line weakenings are separated to form bottoms of adjacent bags. The bottoms of adjacent bags are preferably overlapped, although they need not be. The wave shaped weakenings are preferably separated (although they need not be) to form wave shaped tops of a adjacent bags. If separated, the wave shaped tops have a longer portion and a shorter portion, and the longer portion is between, in the machine direction, the longer and shorter portion of the adjacent wave shaped top.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Applicant: CMD Corporation
    Inventors: Bradley J. Schmoll, Charles H. Saunder, Paul A. Johnson
  • Publication number: 20090197750
    Abstract: For the continuous production of tobacco bags from a sheet-material web (19), the latter is, in the first instance, folded in the region of a folding device (30) to form a continuous web leg (20) corresponding to a pocket of the bag. The web (19) prepared in this way is directed through a sealing subassembly for the purpose of providing transversely directed connecting seams as a lateral boundary to the pockets of successive bags. The sealing subassembly (31) is arranged in an upright position with sealing devices one beneath the other. The web (19) is directed through the sealing subassembly (31) in an upright plane and is largely free of tensioning during the sealing operation.
    Type: Application
    Filed: February 2, 2009
    Publication date: August 6, 2009
    Inventors: Frank Beckmann, Andreas Storcks, Burkard Roesler
  • Publication number: 20080234120
    Abstract: Various methods of forming bags include applying hot melt adhesive to material without contacting the material with the dispenser that applies the adhesive. The material may be provided in various forms, such as elongate sheet material dispensed from a roll, or elongate tube material that is flattened to define first and second oppositely disposed sidewalls, for example. The material may be provided in single plies, multiple plies, or as separate sheets that are cut, folded, or otherwise manipulated to form bags, with the adhesive joining selected portions of the bag. A nozzle for dispensing hot melt adhesive includes an air passage that is inclined in a direction toward a liquid outlet. The air passage communicates with an air outlet disposed in a common plane with the liquid outlet.
    Type: Application
    Filed: April 28, 2008
    Publication date: September 25, 2008
    Applicant: NORDSON CORPORATION
    Inventor: Wesley C. Fort
  • Patent number: 7060016
    Abstract: A device for rotary conversion of a web or sheet material by cooperating cylindrical tools. The tools are arranged in a cassette. A driving device connects with the tools for rotating them. The cassette with the tools is placed in an adaptive cassette receiver. The driving device includes a motor and is supported on the lid of the cassette receiver. The cassette is placeable in and removable from the cassette receiver and is secured there and the driving device is connected to the tools.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: June 13, 2006
    Assignee: Bobst S.A.
    Inventor: Marco Cipolli
  • Patent number: 6984282
    Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of decorative portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of decorative portions along a plurality of lines which traverse the decorative portions and each of the corresponding undecorative portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a decorative portion extending about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: January 10, 2006
    Assignee: Wanda M. Weder and Willaim F. Straeter
    Inventor: Donald E. Weder
  • Patent number: 6932754
    Abstract: The invention concerns a rotary type bag manufacturing machine which feeds continuously material paper (R) to form angulated bottom bags (B) with handles (T) in which a top edge (S2) with the handles (T) pasted can be folded toward an inside in the manufacturing process. Material paper (R) wound in a roll is continuously fed out. After forming lateral slits (15) and Letter-J-shaped nicks (16) on the material paper (R) by an incising device (4), reinforcing papers (T1) for handles (T) formed by a handle forming device 2 are pasted. Then, a cutting device (6) cuts off the material paper (R) on a cut line aligned with the lateral slits (15) to thereby form the material paper (R) with the handles (T) which remains unfolded in a plane. A cut end portion (S2) with each handle (T) pasted is folded toward an inside to invisibly cover each reinforcing paper (T1) for the handle (T). Thereafter, angulated bottom paper bags (B) are formed through a paper tube forming process and a bottom folding process.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: August 23, 2005
    Assignee: Newport Corp.
    Inventors: Masaki Fujishiro, Tatsuya Ijiro
  • Patent number: 6863766
    Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: March 8, 2005
    Assignee: The Family Trust U/T/A dated 12/8/1995
    Inventor: Donald E. Weder
  • Patent number: 6800051
    Abstract: A method for manufacturing side fold sacks from a flat lying segment of a web of plastic tubular film provided with side folds. According to the method, the bottom end of the segment is provided in such a manner with a staggered cut or a staggered detachment along a perforation that a staggered portion is formed in which the rear wall projects beyond the front wall. Adhesive is applied to the staggered portion up to the area of a fold line, which is located adjacent the edge of the front wall that has been cut free. The staggered portion is then folded over the fold line and adhered onto the front wall to seal the bottom end of the side fold sack.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: October 5, 2004
    Assignee: Windomeller & Hoelscher
    Inventor: Uwe Koehn
  • Patent number: 6733612
    Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed circumferentially about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending continuously about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 11, 2004
    Assignee: Southpac Trust Int'l., Inc.
    Inventor: Donald E. Weder
  • Patent number: 6643994
    Abstract: The present invention relates to a process for converting a continuous structure into discrete, spaced apart elements by means of an expandable support web. First, the continuous structure is combined with a support web comprising longitudinal expansion means. Then, after separation of the continuous structure into discrete elements, the discrete elements are spaced apart by expanding the support web. The process of the present invention is particularly well suited for the industrial manufacture of articles comprising fragile discrete elements supplied to the production process in continuous form.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: November 11, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Michael Divo, Ludwig Busam, Christofer Fuchs
  • Patent number: 6521075
    Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed circumferentially about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending continuously about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: February 18, 2003
    Assignee: Southpac Trust Int'l. Inc.
    Inventor: Donald E. Weder
  • Patent number: 6503182
    Abstract: A system for creating and dispensing cushioning dunnage is small and permits flexible installation configuration options for a single or for multiple packing stations. A compact apparatus of the system is capable of being pivotally mounted as a unit on a stand and includes a motor and a material feeding arrangement driven by the motor for pulling material from a supply roll of the material supported on a stand of the system, and feeding it through the apparatus. A plurality of material shaping members upstream of the feeding arrangement shape the material in the apparatus to convert it into a continuous strip of cushioning product. A perforator driven by the motor perforates the material at spaced locations along the length of the material to allow an operator to manually rip a desired length of cushioning product from the material being dispensed from the apparatus.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 7, 2003
    Assignee: Zsolt Design Engineering, Inc.
    Inventor: Zsolt Toth
  • Patent number: 6183590
    Abstract: A method of forming a plurality of floral sleeves having a uniform design or pattern and printed circumferentially about a lower end thereof without requiring the waste of significant portions of sheet material is provided. The method includes the step of sealing and severing a pair of web portions along lines defined by coextensive first side edges and coextensive second side edges of printed portions. In another aspect, the method includes the step of sealing and severing a pair of overlapping web portions provided with a plurality of printed portions along a plurality of lines which traverse the printed portions and each of the corresponding unprinted portions to form a plurality of sleeves wherein each sleeve has an upper portion and a lower portion with the lower portion having a printed portion extending continuously about the exterior circumference of the lower portion of the sleeve while the upper portion is free of any printing contained in the lower portion of an adjacently formed sleeve.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: February 6, 2001
    Assignee: Southpac Trust International, Inc.
    Inventor: Donald E. Weder
  • Patent number: 5980442
    Abstract: A novel food server and method of producing a food server is disclosed. The novel method includes moving a web of paper at a constant rate of speed, rotary perforating a plurality of lines on the moving web, using rotary timing belts to score at least two fold lines on the moving web, where the two fold lines define two glue flaps, rotary die-cutting the moving web to cut away portions of the paper adjacent the glue flaps, plow folding the moving web along the two fold lines defining the glue flaps, and applying glue to the moving web. After plow folding along the fold lines and applying the glue, the moving web is cross cut to form a blank having the glue flaps. Then, the blank is vacuum folded to cause portions of the blank to contact and adhere to the glue flaps, thereby forming the food server from the blank. The novel food server includes a first panel having two side flaps each defined by a score line, and a second panel having two side flaps each defined by a score line.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: November 9, 1999
    Inventors: James T. Hamilton, Brian J. Hamilton, David A. Hamilton
  • Patent number: 5947882
    Abstract: An apparatus for making bags out of a thermoplastic web has a transport unit for feeding a leading end of the web in a transport direction to a cutting/welding station, tools at the station for transversely welding the web and cutting a bag from the leading end of the web, and a device downstream in the direction from the station for stacking and blocking bags cut from the web. A bag-pulling device between the station and the stacker/blocker has an endless drive strand having a pair of stretches extending vertically across a path of the bag between the station and the stacker/blocker and respective horizontally extending deflector rollers carried on the stretches, vertically displaceable therewith, each extending along a respective axis, and each having an outer surface engageable with the web and freely rotatable about the respective axis.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 7, 1999
    Assignee: Lemo Maschinenbau GmbH
    Inventor: Armin Meyer
  • Patent number: 5938243
    Abstract: A paper product, such as an advertising brochure, a cover or the like, is formed by using the novel method of the present invention. In the present method, a continuous moving web of paper is provided. The web is longitudinally slit at positions offset to one side of a longitudinal axis of the web, preferably a centerline axis, at spaced positions to form a plurality of longitudinal slits which are separated from each other by a continuous portion of the web. Thereafter, adhesive is deposited on the web at a position offset from the longitudinal slit, and preferably along a side margin of the web. A first portion of the web is folded over onto a second portion of the web along a fold line at a position between the longitudinal slit and the adhesive. Next, the first portion is secured to the second portion by the adhesive to form a secured section. The longitudinal slit is thereafter positioned between the secured section and the fold line.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: August 17, 1999
    Inventor: Ronald F. De Santo
  • Patent number: 5924796
    Abstract: A process of manufacturing a bulk bag begins with a length of tubular woven polypropylene material which is cut along first transversely extending lines 64 to form the upper edges of lift sleeve portions 76, cut along longitudinally extending lines 66 to form the side edges of the lift sleeve portions 76, and cut along substantially transversely extending lines 68 situated at the midpoint of the lines 66 to form opposed top wall halves 72 and opposed bottom wall halves 74. The top wall halves and the bottom wall halves are then sewn together along sew lines 82 and 84, respectively. Sidewalls 70' are joined to the bottom wall halves 74 along sew lines 86, and the top wall halves 72 are joined to the sidewalls 70' along sew lines 88. The lift sleeve portions 76 may be configured to provide lift sleeve, lift rope, or single point lift construction. The top and bottom walls may be provided with a fill chute and discharge chute, respectively.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Super Sack Manufacturing Corp.
    Inventor: Norwin C. Derby
  • Patent number: 5830119
    Abstract: A double-ended bag is formed from a tubular woven sheet having at least one tie member extending along the length of the tubular sheet. The tubular sheet is cut to create bag panels and tie member segments in registration. The bag panels are sewn together with the bag panels in registry and the tie member segments in registry.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: November 3, 1998
    Inventor: Yu-Lin Chen
  • Patent number: 5478302
    Abstract: The invention relates to a method for the continuous manufacture of envels, bags, shipping pouches, or the like, of web type material, especially paper or the like, with or without side folds, including lateral gumming or central gumming and with a respective folded and glued bed bottom, whereby the web type material is first precreased, cut, provided with adhesive or gummed, folded, severed, prefabricated into a tubular blank, and finally closed at its bottom.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 26, 1995
    Assignee: Winkler & Duennebier Maschinenfabrik und Eisengiesserei KG
    Inventor: Martin Bluemle
  • Patent number: 5160308
    Abstract: In one embodiment, a flexible bag comprises an inner bag for storing product having a top end region provided with a channel flap. The flap comprises a flexible pouring spout closed above by a folded portion of the inner bag and closed below by a seal. In another embodiment, a flexible bag comprises an inner bag for storing product having a top end region and a channel flap connected thereto. The channel flap comprises a flexible pouring spout. The channel flap and inner bag are provided with juxtaposed die cut openings which define a flow inlet for the pouring spout.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: November 3, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventor: Harry R. Peppiatt
  • Patent number: 5127893
    Abstract: A reinforced collapsible bag and method of making it from blanks of a flexible woven material which are cut from an elongate web substantially without wasting any material between adjacent blanks with pairs of reinforced strips extending along the side edges and through the central portion of the sides and top and bottom of the bag, thereby reinforcing the bottom, top, sides and corners of the bag. Each blank has a circumferentially continuous central portion and four isosceles triangular portions at each end of the blank. Adjacent sides of adjacent triangular portions are connected together to provide, when the bag is expanded or filled, generally square ends which are interconnected by generally rectangular side walls. Lifting straps can be attached to the reinforced strips along the side edges of the bag. An access opening is provided in an end of the bag by terminating the connections of its triangular portions short of their apexes.
    Type: Grant
    Filed: December 31, 1991
    Date of Patent: July 7, 1992
    Assignee: Custom Packaging Systems, Inc.
    Inventor: Lee Lafleur
  • Patent number: 4988332
    Abstract: A method for the production of packing bags which can be stacked on a wicket and unfolded while being filled, and for that purpose are provided at the bottom end of the bag with exposed wicket perforations disposed in a wicket tab. The bag is made from an outspread web which first is assembled to an open-sided tube and then into a flat-folded tube and bonded. The outspread web is severed in the area of the bag-length boundaries which set the bag lengths apart from one another, by means of a cut made transversely of the web, which produces a castellated outline. The bottom area and top area of two bag lengths lie adjacent one another and yield interfitting tabs and notches. The tabs in the top area can be laid one on the other to form a handle section and at least one tab in the bottom area is used as a wicket tab. Unneeded web material between the tabs is cut away.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: January 29, 1991
    Assignee: M u. W Verpackungen Mildenberger u. Willing GmbH & Co. KG
    Inventor: Helmut Mattle
  • Patent number: 4962797
    Abstract: A method for separating a pair of plastic bags, connected together at a transversely disposed parting line, comprises the steps of intermittently moving the pair of bags along a path disposed in a horizontal plane, stopping the bags and placing the parting line over an opening extending transversely relative to the path and positioned between a pair of platens, clamping the pair of bags to the platens and severing the parting line to separate the pair of bags from each other by moving a cutting blade in a horizontal direction and transversely through the opening.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: October 16, 1990
    Inventor: Peter N. Thomsen
  • Patent number: 4932932
    Abstract: A method of cutting blanks from an elastic paper comprises the following steps: removing a single elastic paper web of indefinite length from a mother roll; longitudinally cutting the single web, as it runs off the mother roll, into a plurality of paper panels; guiding the running paper panels in pairs into a superposed, face-to-face relationship to form at least one running superposed paper panel pair; guiding the running paper panel pair between cooperating cutting rollers of a rotary cutter and cutting the blanks from the running paper panel pair by the cutting rollers alternatingly from opposite sides of the paper panel pair while countersupporting the paper panel pair by the momentarily non-cutting cutting roller.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: June 12, 1990
    Assignee: Melitta-Werke Bentz & Sohn
    Inventors: Heinrich Schmidt, Edgar Besenreiter
  • Patent number: 4931035
    Abstract: A mailer having an oversized insert and method wherein an interior ply is transversely folded and adhered to an unfolded interior ply.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: June 5, 1990
    Assignee: Wallace Computer Services, Inc.
    Inventor: Eric Schmidt
  • Patent number: 4913693
    Abstract: A false gusset (12, 82) is positioned between bag panels (26, 28 and 98, 100) to form a bag having a handle (24, 80) at its upper end formed by upward continuations of the sides (26, 28 or 98, 100) of the bag (10, 78). This construction removes the false gusset (12, 82) and the seals (66, 68 or 114, 116) which connects the false gusset (12, 82) to the bag panels (26, 28 or 98, 100) from the forces created by the weight of the bag (10, 78).
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: April 3, 1990
    Assignee: Cello Bag Co.
    Inventors: James R. Ball, Delbert J. Barnard
  • Patent number: 4909779
    Abstract: A web of flat plastic bag stock formed with transverse perforations and heat seals is separated into individual bags, then individually formed in plural folds and the folded bags are stacked for packaging. To form as many as three folds, four rollers are used. The individual, separated bag is forced between the first and second rolls by a reciprocating first "blade" which contacts the middle of the bag. After being formed with the first fold, the bag is forced between the second and third rolls by a reciprocating second "blade". The twice-folded bag is then forced between the third and fourth rolls by a third reciprocating "blade" and, after the third fold, is conveyed away on belts to a stacking station where plural bags are deposited as a layer on a table. The layers may be packaged by hand or by suitable machinery.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: March 20, 1990
    Inventor: Helmut T. Schaffron
  • Patent number: 4906228
    Abstract: The invention relates to a process and apparatus for the paired manufacture of carry bags from synthetic resin sheeting with lateral weld seams and an approximately sinusoidal load-bearing rim with punched-in handle openings, wherein a laid-flat tubular film is cut open in wave shape, and the two cut-apart semitubular sheets (1a, 1b) are pulled apart transversely to the conveying direction, the wave crests are folded over at least in part in parallel to the folding edges (3) in each case either toward the outside or toward the inside, then the semitubular sheets are again united in order to compensate for at least a portion of the gap S produced by folding over the flaps, and after achieving a synchronous run of the folded over flaps (51, 52), the latter are welded to the lower and upper sheet layers (10a, 10b) of the semitubular sheets (1a, 1b) in the area (15) surrounding the subsequent handle opening (4), the wave crests, prior to being folded over, being electrically discharged and, after having been fold
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: March 6, 1990
    Assignee: Stiegler GmbH Maschinenfabrik
    Inventors: Hans Reifenhauser, Robert Wagner
  • Patent number: 4889523
    Abstract: A package includes an upper wall, a lower wall and two side folds provided with folds. A tearable flap is provided at a filling opening of the package. The flap is provided with two suspension openings spaced from each other. The packages are produced from a web of synthetic thermoplastic foil which is formed into an envelope open at one longitudinal edge and side folds are thereafter formed on the envelope which is then weld-sealed at its open edge.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: December 26, 1989
    Inventor: Karl-Heinz Sengewald
  • Patent number: 4798572
    Abstract: A collapsible bag and method of making it from blanks of a flexible material which are cut from an elongate web substantially without wasting any material between adjacent blanks. Each blank has a circumferential continuous central portion and four substantially identical isosceles triangular portions at each end of the blank. Adjacent sides of adjacent triangular portions are connected together to provide, when the bag is expanded or filled, generally square ends which are interconnected by generally rectangular side walls. An access opening is provided in an end of the bag by terminating the connections of its triangular portions short of their apexes. Preferably, a spout is received in the access opening and connected to the triangular portions.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: January 17, 1989
    Assignee: Custom Packaging Systems, Inc.
    Inventors: Arthur E. LaFleur, Arnie LaFleur, Lee LaFleur
  • Patent number: 4545781
    Abstract: A combination of a self-opening shopping bag and a coupon packet is disclosed together with apparatus and a method for making same. A flat coupon packet containing coupons is affixed to the front panel of the bag. The coupon packet is sized and positioned widthwise between the side gussets of the bag and spaced apart from the bottom of the bag so that, when the bag is folded flat, only the front and rear panels of the bag underlie the packet. The coupon-applying apparatus is designed and positioned to apply coupons at the beginning of the bag-making procedure. It includes a glue applicator mounted adjacent the former of the bag-making machine for applying a strip of glue to a side of the continuous sheet opposite the forming means, the strip extending lengthwise of the sheet in a predetermined lateral position. A packet feeder is mounted on the former just downstream of the glue applicator for feeding coupon packets lengthwise of the paper flat onto the continuous sheet upon the strip of glue.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: October 8, 1985
    Assignee: Willamette Industries, Inc.
    Inventors: Charles L. Carl, Ronald S. Gale, William J. Forstrom
  • Patent number: 4498192
    Abstract: An improved bag construction, and a method of bag forming, are disclosed which gives an economical yet strong, burst- and leak-resistant closure without the necessity of sewing or use of expensive stepped cut tubes. The bag is formed using a tube having opposed, interconnected front and rear panels, wherein a pair of laterally spaced, parallel cut lines are provided adjacent the top margin of the tube which define opposed first and second marginal flaps respectively in the front and rear panels. In bag-forming operations, the first flap is folded and glued against the outer face of the front panel, and the closure is completed by folding and gluing the second flap over the open end of the tube in a manner to refold the first flap and engage the outer face of the first panel. In another embodiment, a filling valve is inserted between the front and rear panels adjacent the closure end during the bag-forming operation, so as to provide a valve bag.
    Type: Grant
    Filed: January 28, 1983
    Date of Patent: February 5, 1985
    Assignee: Mid America Machine Corp.
    Inventors: Arnold F. Becker, Harold K. Johnson
  • Patent number: 4493685
    Abstract: In making a tubular bag, a first band of thermosetting glue is printed across the length of a web, and a second and third band of such glue is printed on the opposite side of the web in registry with the ends of the first band. The printed glue is then dried with a heat below that of the softening temperature of the thermosetting glue. Glue is applied to a marginal edge of the web and the marginal edges are overlapped and thus glued together as a back seam. An increment of the tube is severed at said bands without heating such bands, and the web is folded along a line extending centrally through the glue bands. The bands are simultaneously clamped together and heated to fuse the bag layers together at the bands.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: January 15, 1985
    Assignee: Bagcraft Corporation of America
    Inventor: Robert H. Blamer
  • Patent number: 4486187
    Abstract: A dispensing bag for particulate matter is closed at one end by a two layer closure formed by an openable outer closure, and an inner dispersion panel with apertures of suitable size therethrough. Opening the outer closure exposes the apertures in the dispersion panel and permits particulate matter to be dispensed therethrough. The bags may be conveniently mass produced from sheet material, such as flexible plastic, in the form of a continuous strip or flattened tube, by appropriate cutting, folding, and joining operations. The invention provides an inexpensive container from which particulate matter may be conveniently dispensed in controlled fashion, and which resists accidental opening and spillage.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: December 4, 1984
    Inventor: Robert D. Foster
  • Patent number: 4435944
    Abstract: In order to provide for the secure and orderly storage of flat objects on a carrier web, in particular unfilled plastic bags on a plastic carrier web, the invention provides a method and an apparatus for the sequential delivery of preformed plastic bags having a unilaterally extending attachment flap. The bags are delivered onto a moving carrier web also made of plastic film. Various alignment and positioning devices place the plastic bags seriatim on the carrier web while a heat-welding mechanism attaches the flap of each bag to the carrier web in a predetermined region. A tear line or perforation line permits subsequent removal of the bag from the web while the flap remains attached thereto. The apparatus includes power sources for the cyclic actuation of the alignment and welding mechanism in synchronism with the speed of delivery of the bags to and from the machine. The apparatus also includes a reciprocating storage container permitting the zig-zag layered stacking of the web with the attached bags.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: March 13, 1984
    Inventor: Alfons Meyer
  • Patent number: 4386924
    Abstract: Disclosed is a method and apparatus for producing handle bags made of thermoplastic web material by transporting segments of gusseted web to a cutting device that removes a generally rectangular portion of material to produce at least one style of a bag with handle portions that can be either gripped by hand or receive a forearm of a user. Moreover, there is disclosed apparatus for folding and collecting the bags so produced.
    Type: Grant
    Filed: October 23, 1980
    Date of Patent: June 7, 1983
    Assignee: FMC Corporation
    Inventors: Donald C. Crawford, John S. Aterianus
  • Patent number: 4354335
    Abstract: In order to provide for the secure and orderly storage of flat objects on a carrier web, in particular unfilled plastic bags on a plastic carrier web, the invention provides a method and an apparatus for the sequential delivery of preformed plastic bags having a unilaterally extending attachment flap. The bags are delivered onto a moving carrier web also made of plastic film. Various alignment and positioning devices place the plastic bags seriatim on the carrier web while a heat-welding mechanism attaches the flap of each bag to the carrier web in a predetermined region. A tear line or perforation line permits subsequent removal of the bag from the web while the flap remains attached thereto. The apparatus includes power sources for the cyclic actuation of the alignment and welding mechanism in synchronism with the speed of delivery of the bags to and from the machine. The apparatus also includes a reciprocating storage container permitting the zig-zag layered stacking of the web with the attached bags.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: October 19, 1982
    Inventor: Alfons Meyer
  • Patent number: 4264317
    Abstract: A web of bag-making material has longitudinally folded rectangular sheets adhered at intervals to one face by one flap before longitudinal margins of the web are folded over, stuck to the other flap of each sheet and joined where they overlap to define a tube, whereafter sections are severed from the tube to make bags to be formed with cross-bottom closures at the ends. The size and position of each folded sheet is such that it will subsequently form an internal seal for the respective cross-bottom closure but the sheet for the closure at one end is made as two longitudinally aligned segments of which one segment has been transversely pre-folded back onto itself to define a tab adjacent the edge of the other segment with the length of a subsequent filling valve for the bag. Following formation of the cross-bottom closures, the filling valve is formed by unfolding the pre-folded tab.
    Type: Grant
    Filed: June 29, 1979
    Date of Patent: April 28, 1981
    Assignee: Windmoller & Holscher
    Inventor: Richard Feldkamper
  • Patent number: 4256028
    Abstract: This invention relates to method and apparatus for making plastic tubular preforms for assemblying bottles or other containers into individual mutli-unit packages. The bottles for an integral multi-container package are arranged in a tightly-assembled group and the tubular preform is placed around the group. The tubular preform is formed from a lengthy sheet of flexible heat-shrinkable thermoplastic material which preferably is comprised of a composite foam and film laminate with the preform having a thermal fusion seal extending in an axial direction. The preform is flat-folded with a pair of axial pleated folds in diametrically opposite sides and then double-folded centrally for use in multiple unit packaging of like containers. The preforms has a primary orientation in a circumferential direction and a secondary orientation in an axial direction making it particularly useful when fully opened for heat shrinking around a group of like containers.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: March 17, 1981
    Assignee: Owens-Illinois, Inc.
    Inventor: Stephen W. Amberg