Polygonal Cross Section Tube Patents (Class 493/295)
  • Patent number: 9701088
    Abstract: A barrel formed from a sheet of blank material includes a plurality of side wall panels for forming sides of the barrel including a front panel, a rear panel, two opposing end panels, and at least one diagonal corner panel, at least one bottom flap for forming a bottom of the barrel, and a plurality of top flaps for forming a top of the barrel including a top front flap foldably connected to the front panel, a top rear flap foldably connected to the rear panel, and two opposing top end flaps each foldably connected to one of the end panels. The top front flap and the top rear flap include at least one closure slot. Each of the two opposing top end flaps includes at least one locking finger. The locking fingers are inserted within the closure slots for securing the top of the barrel in a closed position.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: July 11, 2017
    Assignee: WestRock Shared Services, LLC
    Inventors: Benjamin Strong, Brian Lowe
  • Publication number: 20150060532
    Abstract: A holder for a food product includes three rectangular shaped sidewalls which are interconnected to establish a triangular tube-like structure with an enclosed space for receiving a portion of the food product therein. A score line is formed on a selected sidewall to create an integral hinge which allows for an operational reconfiguration of the holder to support the food product while the food product is being consumed.
    Type: Application
    Filed: August 12, 2014
    Publication date: March 5, 2015
    Inventor: Ward J. Goldstein
  • Publication number: 20150028086
    Abstract: An article of manufacture is provided. The article of manufacture includes a sheet of foldable material. The sheet of foldable material is configured to be folded a first way to form a package for an object. The sheet of foldable material is configured to be folded a second way to form a supplementary structure for a light source.
    Type: Application
    Filed: August 15, 2013
    Publication date: January 29, 2015
    Inventor: Daniel Joel Freschl
  • Publication number: 20150021380
    Abstract: A wrapper (40) comprising a film (41) having a plurality of reinforcing tear strips (42a, 42b) extending at least partially across the film Each tear strip includes a tab portion (45a, 45b). The wrapper (40) is configured such that pulling the tab of a first tear strip causes a tear to propagate through the film (41) to separate a first portion of the film attached to the first tear strip, from the remainder of the film Pulling the tab of a second tear strip causes a second tear to propagate through the film to define a second portion of the film attached to the second tear strip. The second portion of film attached to the second tear strip comprises the remainder of the film once the first portion is removed with the first tear strip. Also, an apparatus and method for manufacturing such a wrapper.
    Type: Application
    Filed: February 13, 2013
    Publication date: January 22, 2015
    Inventors: Paul Gibson, Robert Whiffen
  • Publication number: 20140053507
    Abstract: Exemplary embodiments are directed to a sandwich carrier handle and carrier for transporting a sandwich, including a plurality of wall portions hingedly joined at a plurality of fold lines. The plurality of wall portions are configured and dimensioned to fold at the plurality of fold lines to form a structure which wraps around the sandwich carrier. The exemplary sandwich carrier handle includes a first end including a first handle portion and a second end including a second handle portion. The first and second handle portions are configured and dimensioned to releasably interlock. The exemplary sandwich carrier handle includes a first open end and an opposing open end of the structure configured and dimensioned to permit the passage of the sandwich carrier therethrough. Exemplary embodiments are further directed to a method of transporting a sandwich carrier.
    Type: Application
    Filed: November 2, 2012
    Publication date: February 27, 2014
    Applicant: WAL-MART STORES, INC.
    Inventor: David T. Oblisk
  • Publication number: 20130029823
    Abstract: A method of making reinforced paperboard cartons comprises the steps of advancing a web of paperboard along a path and progressively laminating at least one ribbon of reinforcing material to the advancing web of paperboard. The ribbon of reinforcing material, which also may be paperboard, has a width less than the width of the web of paperboard and is applied with adhesive at a selected location across the width of the web. The web and its laminated ribbon are cut into sheets of a predetermined size and the sheets are die-cut and scored with fold lines to form carton blanks. The fold lines may transition from non-reinforced to reinforced portions of the blank and a special transition zone is contemplated to accommodate the transition. The carton blanks are subsequently formed into cartons for receiving articles, the laminated reinforcing material providing reinforcement in selected portions of the cartons.
    Type: Application
    Filed: September 26, 2012
    Publication date: January 31, 2013
    Applicant: Graphic Packaging International, Inc.
    Inventor: Graphic Packaging International, Inc.
  • Publication number: 20130020449
    Abstract: A bag stand includes at least two side panels, each side panel having a top end, a bottom end, and two adjacent side ends, each side panel connected to at least one adjacent side panel to form a bag stand including a top end, a bottom end, and an interior and defining an opening at the top end.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 24, 2013
    Applicant: PRATT INDUSTRIES (U.S.A), INC.
    Inventor: John Richard Muse
  • Patent number: 7546721
    Abstract: A method of making tetrahedron packages having substantially uniform tear zones is disclosed. The method includes printing a first image at a first location of a sheet material and a second image at a second location of the sheet material, such that the first image is oriented 180° from and longitudinally arranged with respect to the second image. A tube is formed from the sheet material. The tube runs through a package forming machine to form a first tetrahedron package including the first image and a second tetrahedron package including the second image from the tube. The first tetrahedron package and the second tetrahedron package are connected by a seal zone. Substantially uniform tear zones are formed in the seal zone using a laser or a knife. The substantially uniform tear zones are at the same location with respect to a side edge of the first and second tetrahedron packages.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: June 16, 2009
    Assignee: Heinz North America (a division of H.J. Heniz Company)
    Inventors: William Rasile, David Kuethe, Richard Hilenski
  • Patent number: 7503885
    Abstract: A soft shell, flexible storage tank is provided, including corners of an improved configuration adapted to resist leaks. The walls of the tank and the corners are relatively more rounded and larger in radius than those of conventional flexible tanks. The walls and the improved corners act together to resist leaks. The rounded corners tend to reduce the effective pressure in the tank walls by loading the seams predominantly in shearing stress when the tank is filled with a liquid. The rounded corners are developed as panels, which are thermally bonded to produce secure and reliable liquid-tight seams. Each of the panels is bonded by lapped seams to others of the panels. Each of the rounded corners includes a generally triangular corner that is bonded to at least three other panels. In effect, the flexible storage tank functions as a pressure vessel, which tends to resist leakage.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 17, 2009
    Assignee: MPC Containment Systems LLC
    Inventors: Edward Reicin, Jack Moreland
  • Patent number: 6589147
    Abstract: A former whose wing component incorporates periodic openings, a tube component (that may, or may not, incorporate periodic openings) and a base component (that is shaped to conform substantially to the former's tube geometry) is described. Such a former, may be significantly less heavy than prior art formers (for a given size package) while simultaneously providing improved performance and durability. A former assembly that includes the former, a cross-bar, a top-plate and spacers is also described. Each of the cross-bar, top-plate and spacers may use aluminum and/or incorporate hollowed pockets to further reduce the assemblies weight.
    Type: Grant
    Filed: September 8, 2001
    Date of Patent: July 8, 2003
    Assignee: J & F Business, Inc.
    Inventors: John Dominguez, Jr., John Dominguez, III, Ben Dominguez, Kenneth Dishon
  • Patent number: 6514185
    Abstract: In a method and an apparatus for producing tubular hollow items, in particular for containers, form card material or the like, to improve the efficiency and thus to reduce the costs on the production of known packages, the following steps are proposed: transporting a blank bound by longitudinal edges, or a web of card material or the like, from which the blank is separated into a bending station, the blank or the web being bent by guide elements acting as a bending apparatus and then being held stationary in the bending station and being bent by means of movable bending apparati into the finished shape of the hollow item and an overlap region being formed, in which the two longitudinal edges of the blank, which are parallel to the longitudinal axis of the hollow item, are placed one on top of the other and are connected to one another and the hollow item being conveyed out of the bending station.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: February 4, 2003
    Assignee: SIG Combibloc Systems GmbH
    Inventors: Heinz-Werner Knuppertz, Michael Heil
  • Patent number: 6106451
    Abstract: A method of producing a rectangular cross-section cardboard tubing by passing a plurality of cardboard strips having a thermoplastic coating thereon through a heating unit so as to hear the plurality of strips and melt the thermoplastic coating. Thereafter, the plurality of heated strips are passed through a guiding unit so as to align the strips in an overlapped configuration. The aligned plurality of strips are wound around an elongated, rectangular cross-section, rotating core so as to place the plurality of strips in an overlapped, spiral configuration along the core and form a tubing. The tubing is fed along the core, and a cutting unit cuts the tubing into lengths.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: August 22, 2000
    Inventor: Ingmar Andreasson
  • Patent number: 6027439
    Abstract: Spirally-wound circular side walls may be re-formed into non-circular geometries which are then mechanically joined to conformably shaped non-circular closure disks and thereby produce non-circular two-piece paperboard container lids.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: February 22, 2000
    Assignee: Sweetheart Cup Company, Inc.
    Inventors: Charles E. Busse, Edward M. Earnest, David W. Norwood
  • Patent number: 5957823
    Abstract: A folding mechanism for a bag knitting apparatus which is intended to fold inwardly the text-printed sides of the double-layer material strip to overcome the problems of conventional bag knitting apparatus. The folding mechanism comprises a clamping roller set, a folding rod set, a supporting set, and a pressing wheel set. The double-layer material strip to be folded is opened to enclose the lower end of the folding rod set such that the sides are positioned between groove surfaces formed on the outer sides of the folding rod set and the pressing wheel set. The material strip is folded as it passes upward between the groove surfaces of the folding rod set and the pressing wheel set.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: September 28, 1999
    Inventor: K. S. Fan
  • Patent number: 5908135
    Abstract: A sleeve pack to be used with a pallet base and cover to form a container for shipping bulk goods comprises four vertical walls arranged such that each vertical wall is orthogonal to two adjacent walls. At least one vertical wall of corrugated plastic is joined by an edge-to-edge butt welded seam. In a preferred embodiment of the present invention a vertical wall panel having vertically oriented corrugations is edge-to-edge butt welded with a corner piece of corrugated plastic having horizontally oriented corrugations to form a continuous one ply sleeve pack. An alternative embodiment of the present invention is a double thickness, corrugated plastic sleeve pack in which one thickness has horizontal corrugations for side impact resistance and the other thickness has vertically oriented corrugations for increased stacking strength but with all seams butt welded.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: June 1, 1999
    Assignee: Bradford Company
    Inventors: Judson A. Bradford, Robert M. Zink
  • Patent number: 5685132
    Abstract: A bag forming, filling and sealing machine for producing bag packages with a base or block bottom comprising a forming tube whose lower part has two segments that accomplish a transition from a circular inlet cross section to a rectangular outlet cross section via a square intermediate cross section. As a result of the intermediate cross section, differences in length longitudinally along the jacket lines from the circular inlet cross section to the rectangular outlet cross section of the forming tube are virtually equalized. As a result, bulging and corrugation of the packaging material at the side faces of the bag packages is virtually precluded.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: November 11, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Barend Baastian Romijn, Alfred Wijkhuizen
  • Patent number: 5584789
    Abstract: In a non-round container forming machine having a device for receiving and delivering flat container wall blanks to a wrapping station, at which the blanks are wrapped around a non-round mandrel. The non-round mandrel has a front end facing the blank. The blank is aligned substantially tangential to the mandrel when delivered to the wrapping station. A wing slide assembly, within the wrapping station, moves linearly along opposite sides of the mandrel in a wrapping direction substantially perpendicular to the blank to fold the blank along opposite sides of the mandrel. A forward wing clamp assembly, within the wrapping station, is mounted proximate a rear end of the mandrel to move pivotally to engage and direct outermost portions of opposite ends of the blank in an overlapping relation against the mandrel to form a side seam. The containers are removed from the mandrel with an extractor plate which physically engages the containers upper edge.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: December 17, 1996
    Assignee: Sealright Co., Inc.
    Inventor: Ronald D. Robertson
  • Patent number: 5421938
    Abstract: A round duct and apparatus and method of forming the duct in which the side edges of the duct are formed to interlock when the duct is folded and the flap is secured in place to provide support when the finishing duct tape is applied to seal the flap and complete the joint.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: June 6, 1995
    Assignee: Glass Master Corporation
    Inventor: Robert A. Cunningham, Jr.
  • Patent number: 5205807
    Abstract: An apparatus for forming a hinged top cigarette box having a cross-section with one or more arcuate surfaces from a one piece blank, the apparatus comprising a mandrel that engages the one piece blank along an edge, and which mandrel rotates to wrap the blank around the mandrel to form a hinged top cigarette box having inner and outer walls. Alternative embodiments of the apparatus may include either an ultrasonic device or wet adhesives to secure the inner and outer walls of the box in proper relation. A method is provided for forming a dual layer hinged top cigarette box having a cross-section with one or more arcuate surfaces wherein a box blank is engaged along one end and then rotated and secured so that the resulting box has its inner and outer layers fixed in proper relation.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: April 27, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Jonah Adams, Jr., John Tomanovits, Duane C. Wilder
  • Patent number: 5186704
    Abstract: A duct closure machine for closing duct board into duct with tape which can close duct having four or more sides. Duct board is moved through the machine by a single source of power driving upper and lower rollers with the lower set of rollers movable to accomodate duct of different size. The tape applicator is shiftable laterally to apply tape to duct of different number of sides such as ten sides. The tape applicator is controlled with a simple power circuit in which power to cut off the tape is only applied for a brief time as the completed duct passes through the machine.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: February 16, 1993
    Assignee: Glass Master Corporation
    Inventor: Robert A. Cunningham, Jr.
  • Patent number: 5160307
    Abstract: A pack made of sheet material such as card or corrugated card has rectangular side faces that are interconnected in pairs by respective fold lines, said fold lines being mutually parallel and said side faces forming a rectangular parallelepiped. According to the invention this pack is remarkable in that it includes other side faces that form a pyramid whose base coincides with a face of said parallelepiped. The pack is obtained from a blank of sheet material that includes trapezium-shaped or triangular panels hinged to rectangular panels.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: November 3, 1992
    Assignee: Otor
    Inventors: Jean-Yves Bacques, Guy Coalier
  • Patent number: 5147271
    Abstract: A case, made from a sheet material such as cardboard or corrugated board, having rectangular lateral faces connected in twos by a fold line. The fold lines are parallel to each other. Such a case comprises at least five lateral faces. It may be obtained by wrapping a sheet material blank about a mandrel in cooperation with a pressure plate whose profile corresponds to that of two or three consecutive faces of the mandrel.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: September 15, 1992
    Assignee: Otor
    Inventors: Jean-Yves Bacques, Guy Coalier
  • Patent number: 5074834
    Abstract: A blank for constructing a cell unit includes first, second, third, and fourth walls which each have inner and outer planar surfaces and are separated by fold lines. Each of the walls have upper and lower flaps, the upper and lower flaps of the first wall having tabs extending therefrom. The first and fourth walls of the blank are folded along respective fold lines such that the tabs extending from the upper and lower flaps of the first wall are respectively disposed on the upper and lower flaps of the fourth wall. An adhesive is applied to at least the outer planar surface of the first, second, third, and fourth walls. The upper and lower flaps of the first, second, third, and fourth walls are folded to adhesively secure the flaps to the respective outer surfaces of the first, second, third, and fourth walls and the tabs are adhesively secured to the fourth wall.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: December 24, 1991
    Assignee: Georgia-Pacific Corporation
    Inventors: William L. McElhaney, Roger N. Floyd, Farris N. Duncan
  • Patent number: 5066270
    Abstract: Apparatus is shown for preforming a rounded-corner C-shaped innerframe for use in a rounded corner cigarette pack. Contoured rollers are used to preform the rounded corners in the innerframe.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: November 19, 1991
    Assignee: Philip Morris Inc.
    Inventor: John Tomanovits
  • Patent number: 5064409
    Abstract: To produce a container with a rounded edge, the container blank is scored with several substantially parallel, laterally spaced score lines adjacent the intended location of the rounded edge. When the blank is bent, a portion of the total deflection is absorbed by each score line so that the resulting container edge is a gradual curve rather than a single sharp crease. The ends of each scored region may be left unscored to further smooth the ends of the rounded container edge. Methods and apparatus for forming the above-described blank are disclosed.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: November 12, 1991
    Assignee: Philip Morris Incorporated
    Inventors: Christopher J. Campbell, Linda S. Latif, Herman Graboyes
  • Patent number: 4986806
    Abstract: A gusseted tubing former designed to be incorporated in a bag manufacturing line, preferably for manufacturing paper bags from a continuous paper web. The web is formed around the periphery of the former to produce a continuous tubing. As the tubing moves along the former in the manufacturing line, it emerges in the form of a flat tubing which includes two inwardly directed gussets, or folds. To prevent transverse stresses on the web during the formation of the gussets, the former includes edges which longitudinally extend in a direction which follows the folding lines of the gussets of the tubing as the tubing is progressively flattened from an upstream end to a downstream end of the former.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: January 22, 1991
    Assignee: H.I. Holweg International
    Inventors: Gilbert Braedle, Paul Cromer, Francis Huck
  • Patent number: 4976675
    Abstract: The automatic machine comprises a magazine, dispensing die-cuts pre-creased longitudinally with fold lines providing divisions between at least four side panels and a securing flap, suckers by which the die-cuts are picked up from the magazine, and a revolver with radial grippers. In addition, use is made of a conveyor by which the die-cut is transferred forcibly from the suckers to the revolver and bent into U-shape at the same time, and the jaws of each gripper incorporate suction passages emerging along the edges parallel to and farthest from the axis of rotation of the revolver, which firmly withstand the action of first and second folders used to press down the securing flap and the end panel; thus, the die-cut is positively handled and conveyed during its entire passage through the machine.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: December 11, 1990
    Assignee: Verpac, S.p.A.
    Inventor: Gianni Bosi
  • Patent number: 4969861
    Abstract: An apparatus for squaring a sleeve having at least one pair of opposed bevelled corners comprises a cradle having sleeve supporting members merging towards an apex but terminating spaced from the apex and having a support beam in the space between the members and the apex. The support members and support beam are arranged to conform with the outside shape of the sleeve in squared condition. An platen is moveable into a sleeve while the sleeve is supported in the cradle. The platen is shaped to substantially conform with the inside of the sleeve in squared condition and is moveable toward the apex to force the sleeve into conformity with the cradle and the support member and thereby square the box. Preferably an end closure pad applicator will apply an end closure pad to the squared sleeve while supported in the cradle and with the platen in place to resist pressure applied to the outside of the sleeve when the pad is being secured to the sleeve.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: November 13, 1990
    Assignee: MacMillan Bloedel Limited
    Inventor: Bradley J. Crittenden
  • Patent number: 4932930
    Abstract: A method and machine for forming a case with polygonal section from a blank of sheet material. There is an assembly of panels. The assembly of panels is wound about a mandrel with polygonal section. The tongue is fixed to the free edge of the endmost panel. The flaps situated on the same side of the panels are folded. The flaps thus folded are fixed together.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: June 12, 1990
    Assignee: Embal-Systems
    Inventors: Guy Coalier, Jean-Claude Serre
  • Patent number: 4925440
    Abstract: An apparatus for the making of container jackets from flat cardboard or plastic blanks. The blank is folded around a core by means of pivoted fingers which are moved toward the core while ends of the fingers are guided in guide passages to produce pivoting of the fingers. The fingers pivot such that blank-engaging ends of the fingers fold the blank around the core. The slide guides are mounted for pivotable movement simultaneously with the movement of the fingers toward the core, whereby the movement of the fingers can be adapted to cores of different diameter by changing the distance of movement of the carrier, i.e., the same fingers and slide guides can be used with an infinite number of core diameters.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: May 15, 1990
    Assignee: Michael Horauf Maschinenfabrik GmbH & Co. KG
    Inventor: Berthold Muller
  • Patent number: 4908009
    Abstract: A corner forming unit of a package forming machine which employs an H-shaped guide over which the packaging material passes after it has been longitudinally sealed. A pair of rollers outside of the tube of material forms the edges of the packaging material into the H-shaped guide to form the corners of the material from which individual filled rectangular packages will be formed.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: March 13, 1990
    Assignee: Milliken Research Corporation
    Inventor: Yoshimitsu Yokoyama
  • Patent number: 4880944
    Abstract: A bar for electric induction devices is in the form of a lengthwise rolled-up strip of an insulating material, having at least one layer, the figure obtained in the cross-section of this rolled-up strip being a polygon.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: November 14, 1989
    Assignee: Nauchno-Issledovatelsky, Proektno-Konstruktorsky I Tekhnologichesky Institut Transformatorostroeniya
    Inventors: Viktor L. Kanaljuk, Anatoly M. Surakov, Vasily M. Chornogotsky, Lazar N. Shifrin
  • Patent number: 4870804
    Abstract: Method of forming a parallelepiped container from a roll of packaging material by sequentially folding and sealing the longitudinal edge of the paper material, forming corners in the web of material, cutting the material into flat tubes, sealing the bottom of the tubes on a mandrel, filling the bottom sealed tube and sealing the top of the filled tube.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: October 3, 1989
    Assignee: Milliken Research Corporation
    Inventor: Yoshimitsu Yokoyama
  • Patent number: 4717371
    Abstract: Apparatus and method for making a bulk container from a pair of outer and inner blanks of foldable sheet material such as paperboard wherein the blanks are laminated to each other to form a multi-ply sheet then scored to provide fold lines, and then glued and folded to provide a tubular structure.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: January 5, 1988
    Assignee: Container Corporation of America
    Inventors: Wayne F. Everman, Randy J. Klug, Raymond L. Russell
  • Patent number: 4714164
    Abstract: A carton blank and method for forming a liquid-tight tapered container having a denesting tab. When the blank is folded and sealed to form an open-topped tapered container, a destacking tab is formed as a result of abhesion. The tab facilitates destacking a single container from a stack of like containers prior to their filling and final closure.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: December 22, 1987
    Assignee: Nimco Corporation
    Inventor: George Bachner
  • Patent number: 4708706
    Abstract: A package wrapper shaping apparatus which has lateral folders and folding slides for wrapping a blank around a shaping mandrel. In order to guide the free portions of the blank in a defined manner in this process and to put their outer edge portions on one side of the shaping mandrel in contact with one another, the lateral folders and the folding slides are embodied in comb-like fashion with teeth, so that they mesh alternately with one another in pairs as they fold over the end portions of the blank.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: November 24, 1987
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Doderer, Heinz Kiefer, Willi Krieger
  • Patent number: 4563169
    Abstract: A method and apparatus for folding a flat container blank about parallel score lines to bring a glue flap on the blank into juxtaposed relationship with respect to a side panel of the blank. Gripping mechanisms are associated with an intermittently operated conveyor means for pulling a blank past a glue applying station, into the folding station, and into a compressing station where the manufacturers' joint is set. Release means is provided for opening the gripping mechanisms downstream of the compressing station, and a following set of gripper mechanisms push the freed blank from the machine. Further conveyor means may be associated with the apparatus for feeding a liner to the blank to produce a laminated folded and glued blank.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: January 7, 1986
    Inventors: Arthur W. Virta, John R. Lane
  • Patent number: 4505769
    Abstract: A wrapper sleeve is made from a film length in the following consecutive steps: wrapping the film length about a sealing mandrel such that opposite longitudinal edge zones of the film length are in a face-to-face oriented relationship; providing a sealing seam in and along the face-to-face oriented longitudinal edge zones for bonding the edge zones to one another whereby a wrapper sleeve is formed; and removing the wrapper sleeve from the sealing mandrel and inserting the wrapper sleeve on a forming mandrel having a circumferential length identical to that of the sealing mandrel and a cross-sectional shape different from that of the sealing mandrel.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: March 19, 1985
    Assignee: SIG Schweizerische Industrie-Gesellschaft
    Inventor: Robert Auckenthaler
  • Patent number: 4474564
    Abstract: In a machine for forming a continuous tube which is then cut up into sections, for example to make containers, a plurality of bands of fibrous, cellulosic, metallic, plastic or other material are drawn from supply reels and pass through a gluing and labelling section where adhesive is applied to one side of the bands and labels are applied to the outer face of the center band. After application of the adhesive and labels, the bands, while continuing to move forwardly, are assembled in superposed relation with the bands laterally displaced relative to one another so that the edges of the assembly of bands are stepped. The bands are pressed together in a narrow central width only so as to bond central portions together while leaving side portions unbonded.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: October 2, 1984
    Inventor: George Sireix
  • Patent number: 4469542
    Abstract: Pieces of tube are produced from a flat flexible web by feeding the web intermittently into apparatus which first makes transverse incisions from each edge partly across the web at a spacing equal to the desired tube lengths. The side portions between the incisions are then folded along longitudinal fold lines so that their end edges overlap and are welded together. In a subsequent operation, the non-incised central flat portion of the web is severed in line with the incisions and the tube elements thus formed are then moved transversely to the direction of web movement by a reciprocating slide to stand upright on tube-shaping members.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: September 4, 1984
    Assignee: Tetra Pak Developpement
    Inventor: Wilhelm Reil
  • Patent number: 4441948
    Abstract: A method and an apparatus is disclosed for forming a multi-layered container of compressible sheet layers, such as corrugated board. The containers are formed in a single operation and avoids the known techniques of folding the layers before laminating in multistep methods. Furthermore, the container may be folded without the layers separating. The method of forming a multi-layered container having a plurality of flat sides with corners between adjacent sides comprises winding compressible sheet layers on a forming mandrel. In the process, one edge of a layer is attached adjacent to a corner of a mandrel, a shoe plate applies pressure to the layer against the mandrel as it rotates to maintain a substantially constant pressure and tension on the layer. An additional momentary force is applied to the shoe plate as each corner of the mandrel passes over the shoe plate such that the layer at each corner is compressed.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: April 10, 1984
    Assignee: MacMillan Bloedel Limited
    Inventors: David F. Gillard, Jack T. Yelf
  • Patent number: 4368052
    Abstract: A method and apparatus for lining bulk box blanks starting with flat, seamed blanks and resulting in flat, lined, tubular blanks. Glue is applied across the length of the seamed blanks excluding the seam regions. After a liner is placed on the adhesive bearing surface of the blank the blank and liner are moved together to a compression station in a direction transverse to the direction of glue application. The liner and blank are pressed together in the compression station and then forwarded to a folding station where the blank quarter sections defined by preformed seams and slits are folded together atop the remaining, intermediate half section to form a flattened tubular blank. While the blank is enroute to the folding station, glue is applied to a flap along the edge of one quarter section to secure the two unattached edges of the blank together to form the tubular blank.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: January 11, 1983
    Assignee: Peerless Metal Industries, Inc.
    Inventors: Thomas C. Bitsky, Joseph R. Wilkus
  • Patent number: 4349345
    Abstract: A machine for making non-cylindrical paper container, including wings for wrapping a container blank around a non-cylindrical mandrel. The wings each have a supplement wing portion pivotably attached thereto, and as the wings are moved into the mandrel-engaging position, a mandrel-contacting part of the supplement wing portions that abuts against the mandrel causes those portions to swingingly approach the mandrel. In this manner, the wing portions may move unobstructively past the mandrel as the wings and wing portions wrap the blank against the mandrel.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: September 14, 1982
    Assignee: Paper Machinery Corporation
    Inventor: Raymond E. Bodendoerfer
  • Patent number: 4319878
    Abstract: A method and apparatus for forming a reinforced half-slotted container in which each of the side walls is formed by outer side wall and a reinforcing panel which is the same size and height as the outer side wall. The reinforcing panel is attached to the outer side wall along a score line at the top of the outer side wall.In the method, either the two interior reinforcing panels or the two exterior reinforcing panels are adhered to their outer side walls and then the other two reinforcing panels are adhered to their outer side walls. The container is then formed in the normal manner to fasten the glue joint to the opposite side wall.The apparatus has a first forming station in which the interior reinforcing panels are glued, folded over and adhered to the outer side walls, and a second forming station in which the exterior reinforcing panels are glued, folded over and adhered to the outer side walls.
    Type: Grant
    Filed: September 18, 1979
    Date of Patent: March 16, 1982
    Assignee: Weyerhaeuser Company
    Inventors: Henry L. Dozier, John C. Williamson
  • Patent number: 4308023
    Abstract: A process and machine for manufacturing a tubular element, for example for use in forming boxes, in which a strip of material is wound around a mandrel having a cross-section corresponding to that of the tubular element to be formed. The strip of material is arranged to extend in a plane and the mandrel is applied against the strip in a direction perpendicular to said plane to cause lateral parts of the strip to lift up on either side of the mandrel and to define two flaps projecting above the mandrel. A force is then exerted on each of the flaps in a direction parallel to said plane to fold the flaps down onto the mandrel and to bring their free edges into abutment.
    Type: Grant
    Filed: November 6, 1979
    Date of Patent: December 29, 1981
    Assignee: EMBADAC
    Inventor: Georgy Bidegain
  • Patent number: 4295841
    Abstract: A belt type box blank folding machine including bar folder assemblies on a downstream end thereof for engaging partially folded substantially upstanding outer panels on the blanks and folding them downward against inner panels of the blanks. The bar folders are arranged to pivot from an upright position, in engagement with the upstanding panels, to a horizontal position and to simultaneously reciprocate along the path of blank travel to provide maximum engagement with the outer panels during folding thereof. The bar folders are parallel with the fold line of the outer panels during folding thereby preventing twisting of the panels and locking of the leading flaps of the outer panels against the inner panels.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: October 20, 1981
    Assignee: The Ward Machinery Company
    Inventor: Henry D. Ward, Jr.
  • Patent number: 4260446
    Abstract: The present invention provides a method and an apparatus for producing a packaging sleeve of polygonal cross-section, particularly adapted to be foldably collapsed, wherein circular or tubular sleeve stock is formed on a stationary spindle or mandrel from a plurality of glued, thin layers of paper, fabric, plastic material or the like, wound or wrapped one over the other. The sleeve is thereafter shaped into a polygonal cross-section. During the shaping of the tubular packaging sleeve while it is in the glue-wetted state, at least one continuous folding edge impressed into the sleeve wall and extending in the longitudinal direction of said sleeve is press-formed at the desired longitudinally extending edge corners of the polygonal cross-section.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: April 7, 1981
    Inventor: Franz J. Saul
  • Patent number: 4255223
    Abstract: This invention relates to packaging "sleeves", or multi-sided, tubular structures which may be used for packaging articles, as blanks for boxes, or the like, which are made from multiple layers of spirally wrapped strips of paper, fabric, or the like; which sleeves may have discrete corners at the junctures of their sidewalls, which corners may be permanent where rididity is desired, or foldable so that the sleeves may be flattened for storage and/or shipment.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: March 10, 1981
    Inventor: Franz J. Saul
  • Patent number: 4242949
    Abstract: The apparatus includes a mandrel, about which blank sheets are successively folded to obtain packaging sleeves. On one face the mandrel has a recess which extends in the length dimension of the mandrel and in which a first pressing shoe is arranged for reciprocation parallel to the mandrel length. A face of the first pressing shoe complements a mandrel face to a continuous folder face. A second pressing shoe cooperates with the first pressing shoe in pressing and bonding together overlapping edge zones of the blank folded about the mandrel. The first and the second pressing shoes are--as they press the overlapping edge zones--movable as a unit together with the packaging sleeve relative to the mandrel parallel to its length dimension. In this manner the packaging sleeve is stripped from the mandrel, while the adhesive between the overlapping edge zones sets as the stripping takes place.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: January 6, 1981
    Assignee: SIG - Schweizerische Industrie-Gesellschaft
    Inventor: Robert Auckenthaler
  • Patent number: 4242161
    Abstract: A method and a machine for producing a latticework structure composed of cells of essentially parallelepipedon shape from e.g. paper coated on one side with synthetic resin. The web is formed over a mandrel into a sleeve of square cross-sectional shape while being successively advanced, and the sleeve is cut into bits which are flattened and by a step-by-step feeding mechanism positioned adjacent one another with one bit overlapping the following one over halfway in the transverse direction. The bits are bonded together while so positioned whereby flat elements are formed. These flat elements are stacked on top of one another by a mechanism ensuring that the elements are displaced by one cell width in their longitudinal direction and the stack of elements is then cut into pieces having the desired height of the cells. When extended, these pieces form the desired cellular latticework structure.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: December 30, 1980
    Assignee: Munksjo Aktiebolag
    Inventors: Bengt H. Hulten, Hans T. Skarfelt, Uno L. Gjertz