US2751964A - Method of making double-faced corrugated board having a tear strip therein - Google Patents

Method of making double-faced corrugated board having a tear strip therein Download PDF

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Publication number
US2751964A
US2751964A US34841353A US2751964A US 2751964 A US2751964 A US 2751964A US 34841353 A US34841353 A US 34841353A US 2751964 A US2751964 A US 2751964A
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Prior art keywords
corrugated
liner
tear strip
web
sheet
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
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Inventor
Guyer Reynolds
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.)
Waldorf Paper Products Co
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Waldorf Paper Products Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2822Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard involving additional operations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007Running or continuous length work
    • Y10T156/1016Transverse corrugating
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1052Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062Prior to assembly
    • Y10T156/1064Partial cutting [e.g., grooving or incising]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317Means feeding plural workpieces to be joined
    • Y10T156/1322Severing before bonding or assembling of parts

Description

June 26, 1956 R. GUYER 2,751,964

METHOD OF MAKING DOUBLE-FACED CORRUGATED BOARD HAVING A TEIAR STRIP THEREIN Filed April 13, 1953 2 Sheets-Sheet 1 "1 I 2a 6 25 I 27 I 2; 50 1 1 n? -I 3 I i l I 16 10 h z; i 2 2 Uf Z! 22 23 4 INVENTOR Z3 Reyna/d5 Gaye)" 5 7- 3 BY Q w a ATTORNEY June 26, 1956 R. GUYER 2,751,964

METHOD OF MAKING DOUBLE-FACED CORRUGATED BOARD HAVING A TEAR STRIP THEREIN Filed April 15, 1953 2 Sheets-Sheet 2 INVENTOR Fe 270/415 641 er y 9 ATTORNEY Unite tates METHOD OF MAKING DGUBLE-FACED CO GATED BOARD HAVING A TEAR STRIP TEREIN Reynolds Guyer, St. Paul, Minn, assignor to Waldorf Paper Products Company, St. Paul, Minn, a corporation of Minnesota Application April 13, 1953, Serial No. 348,413 Claims. (Cl. 15433.05)

This invention relates to an improvement in tear strip constructions and deals, particularly, with a method and apparatus for forming a tear strip in corrugated board.

In my previous filed application, Serial No. 385,586, filed October 12, 1953, a continuation in part of which eventuated into Patent 2,706,076, for Container Opener, I described a container structure which included a pair of weakened lines, or cut lines, extending transversely of the corrugations of the board. These cut lines were normally provided in the liner forming the inner surface of the container formed of corrugated board or could, if preferred, be provided in both the inner and outer liners with the cut lines of the two liners opposed, or sub stantially opposed. Prior to filing the above mentioned application, I discovered that by forming a pair of closely spaced cut lines in the inner liner of a piece of corrugated board, and by pulling outwardly on this portion of the board, the strip between the cut lines on the inner liner would cut through the corrugated center portion of the board and the outer liner of the board to separate the container into two parts.

An object of the present invention lies in a method of forming board of the type previously described. In this method, the inner liner is completely cut through or partially cut through, before the corrugated board is assembled, thereby preventing any damage of crushing or otherwise injuring the corrugated center portion of the board.

A further feature of the present invention resides in the provision of a paper slitting or perforating means supported in the path of movement of one of the liners of corrugated board prior to the time this liner is combined with the corrugated center portion of the board. As a result, the liner may be completely out through to provide a strip extending longitudinally of the sheet and which may later form a tear strip in the container formed from the corrugated board.

A further feature of the present invention resides in providing a pair of slitting or perforating knives in the path of movement of one or both of the liners just prior to the time the liners are adhered to the corrugated center portion of the board. Accordingly, the severed portion of the sheet is adhered to the corrugated portion thereof directly after the slitting operation, thus insuring the proper positioning of the cut portion of the sheet relative to the remaining portion thereof.

A further feature of the present invention resides in the fact that a plurality of pairs of slitting knives may be provided in place of the single pair described. In the formation of corrugated containers, it is common practice to cut the corrugated board formed to approximately the proper blank size as it leaves the corrugated board-forming machine. As a result, it is commonplace to simultaneously form two or more containers in the width with sheet being formed. In such event, a pair of slitting rollers may be provided for each container so that each of the containers may be provided with its own tear strip.

An added feature of the present invention resides in the 2,751,964 Patented June 26, 1956 provision of a method of forming a tear strip on sheets of corrugated board by cutting a strip in one of the liners as the liner enters the corrugator for attachment to the corrugated inner sheet. This process is therefore continuous and insures the proper positioning of the tear strip in the finished sheets.

These and other objects and novel features of my invention will be more clearly and fully set forth in the following specifications and claims in the drawings forming a part of my specification.

Figure 1 is a diagrammatic view of a carton blank showing the tear strip formed therein.

Figure 2 is an enlarged sectional view through a portion of the tear strip, the portion of the section being indicated by the line 22 of Figure l of the drawings.

Figure 3 is a perspective view of a container having a tear strip in partially opened form.

Figure 4 is a diagrammatic view showing the passage of paper sheets through a corrugator and showing one position in which the cutting or slitting knives may be mounted.

Figure 5 is a diagrammatic view showing the slitting knives cutting the inner liner of the board.

Figure 6 is a view similar to Figure 2, showing a modified construction.

Figure 1 shows diagrammatically the blank of a regular corrugated container having a tear strip therein. The container is shown as having wall panels 16, i1, 12 and 13 which are separated by parallel fold lines 14, 15 and 16. The upper edges of the container wall panels are connected along a common line of fold 18 to closing flaps i5, 16, 17 and 19 respectively. The lower edges of the container walls are connected along a common line of fold 26 to bottom closing flaps 21, 22, 23 and 24 respectively. This particular arrangement is shown for the purpose of illustration as virtually any type of container may be employed.

As illustrated in Figure 1 of the drawings, a pair of parallel cut lines 25 and 26 extend transversely through the wall panels 10, 11, 12 and 13 parallel to the fold lines 13 and 20. These cut lines 25 and 26 define a relatively narrow strip 27 therebetween which forms the inner layer of the tear strip. In actual practice the portion of the container adjoining the ends of the tear strip 27 may be printed as indicated at 29 and 30 so that the tape used to join the free ends of the wall panel 10 and 13 will not adhere to the tear strip. The areas 29 and 30 are shown in dotted outline as the printed a eas are on the outside of the container while the cut lines 25 and 26 are on the inside thereon.

Figure 2 of the drawings indicates in enlarged cross section the manner in which the cut lines 25 and 26 extend through the inner liner 31 of the sheet. The outer liner 32 as well as the corrugated center portion 33 remain uncut in preferred form of the invention. In modified form, the outer liner 32 may be cut in place of the inner liner 31 or both liners 31 and 32 may be cut, the corrugated center portion 33 remaining uncut. This is described in the previous application mentioned above and shown in Figure 6. Parallel cut lines 28 are shown in Figure 6 spaced slightly farther apart than the opposite cut lines 25 and 26. Alternatively, these lines could be directly opposed to the out lines 25 and 26.

Figure 3 of the drawings shows the tape strip 34 joining the end edges of the panels 10 and 13 and shows the tear strip 27 partially removed from the wall panel 13. As is clearly indicated in this View, the cutting of the inner liner is advantageous as this cut strip 27 acts to shear olf the corrugated center portion 33 and the outer liner 32 as the strip is pulled outwardly. In constructions where only the outer liner is cut, the tear strip should preferably be removed by an inward pull upon the 3 proper portionof'the"container, this arrangement being normally impossible with -acontainer ofusual type when filled.

In the present invention the inner liner 31 is preferably cut by slitting knives-35 mounted npon a-shaftfio extending transversely of the liner 31. As will'be obvious from an examination of Figure of the drawings, the shaft 36 may be supported by suitable bearings 37 mounted on V opposite sides of the sheet and the shaft may support any desired number of slitting wheels. In preferred form the slitters on the shaft 36 work in conjunction with, and against, a hardened mandrel roll 3d on the corrugator and the slitting knives maybe rotated by movement of the liner but may be power driven. While slitting wheels provide a common means of cutting paper board and are preferred in the present invention, stationary slitting knives have also been used with success.

With reference to Figure 4 of the drawings, the liner 31 r preferably supported between the rolls 42 and 43 so as to slit the sheet shortly before it is adhered to the corrugated center sheet 33.

The sheet 33 which forms the corrugating medium extends from the supplyroll 45 over, the'feed roll 46 and to the corrugating roll 47 which cooperates with the corrugating roll 44 to crimp the paper therebetween into corrugated form. As the corrugated sheet passes bewhich transfers glue from the glue Wheel 5ft to the surface of thecorrugations. Just after the glue is applied, the corrugated sheet is adhered to the liner 31 in the usual manner. The foregoing description varies somewhat in corrugators of various types. However this description is typical of a manner in which the liner 31 and the sheet 33 may be adhered together to form single faced corrugated sheet. This corrugated sheet is guided between conveyers 51 and 52 to elongated conveyer 53 on which the sheet is looped to provide suflicient time fordrying.

As. is usual practice, the single-faced sheet, indicated by the numeral '54 is guided downwardly between a pressureroller 55 and a glue wheel'56 which acts to apply glue. or other adhesive to the corrugations of the single face. The .outer' liner 32 is guided from a supply roll 57 over a suitable preheating roll 59 to a feed roll 60 which directs the sheet between pressure rollers 61 and 62 which joins the liner 32 to the single-faced sheet 54.

If desired, a second slitter shaft 63 may be provided between the feed roll 69 and the pressure roll 62'and' this shaft 63 may support slitters 64 which will rotate either separately from or in conjunction with the slitter knives 35 previously described. Theseslitter knives 64 maybe rotatedin any conventional manner to cut a strip of paper board from the liner 32 and are only used when it is desired to cut a strip in the outer surface of the 'corrugated board;

By supporting the slitter knives closely adjoining the point at which the slit liner is adhered to the corrugated tend an .unslit portion of the liner sheet past the slitting rolls so that when the sheet is drawn taut the cut strip will be drawn into proper position upon the corrugated inner portion of the sheet. As the movement of the sheet neath the roll 44, it contacts a glue applying roller 49 progresses, thecut strip continues to be fed into proper position so that none of the corrugated inner portion of While I have described the various slitters as cutting entirely throughthe-liners,-- these* elements couldalsoact the principles of construction and operation of'my method for producing tear strips in corrugated board, and while I have endeavored to set forth the best embodiment thereof, I desire to-have it understood that obvious'changes may be made within the scope of the following claims without departing from the spirit of my invention.

I claim:

1. A method of manufacturing double-faced corrugated board having a tear strip. therein for use in container manufacture comprising continuously advancing two moving webs of material which are to form'liners, continuously advancing a web of material which is to form the corrugating medium, continuously corrugating said last-mentioned web along lines which extend transversely of the web to provide transverse flutes, continuously applying glue to all of the flutes on both sides of the corrugated web, continuously applying said liners to opposite sides of the corrugated web, and including the 'furthersteps- 0f slitting one of the moving liners on spaced longitudinally extending lines just prior to its being applied to the corrugated web to form longitudinal sections which are continuous, and maintaining said sections in their original relationship to each other prior to their being applied to the corrugatedweb.

2. A method of manufacturing double-faced corrugated board having a tear strip therein for use in container manufacture comprising continuously advancing two moving webs of material which are to form liners, continuously advancing a Web of material which is to'fo'rm the corrugating medium, continuously corrugating said lastmentioned web along lines which extend transversely of the web to provide transverse flutes, continuously apply- 7 ing webs of material which are to form liners, continu-" ously advancing a web of material which is to form the corrugating medium, continuously corrugating said lastmentioned web along lines which extend transversely of the web to provide transverse flutes, continuously applying glu to all of the flutes on bothsides of the corrugated Web, continuously applying said liners to opposite sides of the corugated 'web, and including the further a step of cutting spaced tear lines in each of the webs which is to form a liner just prior to its being applied to the corrugated web. i V

' 4. A method of manufacturing double-faced corrugated board having a tear strip therein for use in container manufacture comprising continuously advancing two moving webs of material which are to form liners, continuously advancing a web of material which is to form the corrugating medium, continuously corrugating said lastrnentioned web along lines which extend transversely of the web to provide transverse flutes, continuously slitting one of the webs which is to form a liner along spaced longitudinally extending lines to form longitudinal sections, thereafter continuously and uniformly gluing all of said longitudinal sections of said slit web to the flutes of the corrugated web on'one side thereof while maintaining said sections in their original relationship to each other, thereafter gluing the other 'web which is to form a liner to the flutes of the corrugated web on its other side.

5. A method of manufacturing double-faced corrugated board having a tear stn'p therein for use in container manufacture comprising continuously advancing two moving webs of material which are to form liners, continuously advancing a web of material which is to form the corrugating medium, continuously corrugating said lastmentioned web along lines which extend transversely of the web to provide transverse flutes, continuously gluing 10 one of the webs which is to form a liner to the flutes of the corrugated web on one of its sides, continuously slitting the web which is to form the other liner along spaced longitudinally extending lines to form longitudinal sec- 5 other.

References Cited in the file of this patent UNITED STATES PATENTS 2,475,052 Rosen July 5, 1949 2,544,020 Hoag Mar. 6, 1951 2,568,349 McKee Sept. 18, 1951 2,608,341 Eckman Aug. 26, 1952 2,679,349 Mullinix May 25, 1954

US2751964A 1953-04-13 1953-04-13 Method of making double-faced corrugated board having a tear strip therein Expired - Lifetime US2751964A (en)

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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909312A (en) * 1956-10-09 1959-10-20 Walworth Engineering Company Tear strip box
US2936941A (en) * 1957-10-08 1960-05-17 Celanese Corp Cartons
DE1132857B (en) * 1957-04-05 1962-07-05 Timken Roller Bearing Co Container for packaging of a bearing
US3136474A (en) * 1961-10-20 1964-06-09 Weyerhaeuser Co Container
US3181768A (en) * 1963-07-01 1965-05-04 Weyerhaeuser Co Shipping container for furniture or the like
US3189502A (en) * 1961-03-03 1965-06-15 West Virginia Pulp & Paper Com Method of making impregnated corrugated paperboard sheets on a corrugator machine
US3214011A (en) * 1963-01-03 1965-10-26 Waldorf Paper Prod Co Tire cover
US3232154A (en) * 1963-05-10 1966-02-01 Lipton Inc Thomas J Method and apparatus for rendering a corrugated carton readily openable
US3252385A (en) * 1963-08-21 1966-05-24 American Can Co Method of making an easy-open fibre container
US3276667A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Divisible container
US3276666A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Tray-forming containers
US3276665A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Tear strip containers
US3432859A (en) * 1963-01-29 1969-03-11 Gen Electric Radome and method for making same
US4177936A (en) * 1977-06-06 1979-12-11 International Paper Company Variable flute container
US4784271A (en) * 1987-11-20 1988-11-15 The Procter & Gamble Company Tear strip openable shipping/display container with butt joint
US4871345A (en) * 1987-11-20 1989-10-03 The Procter & Gamble Company Method of making tear strip openable shipping/display container and blanks therefor
US6102277A (en) * 1999-07-23 2000-08-15 Krapohl, Sr.; Robert J. Reducible cereal box packaging
US6129211A (en) * 1997-01-17 2000-10-10 Prakken; Bouwe Rectangular shipping box and display container
US6371365B1 (en) 2000-12-21 2002-04-16 Kraft Foods Holdings, Inc. Display and shipping carton
US6478159B1 (en) * 2000-05-22 2002-11-12 Warner-Lambert Company Combination shipping and display container and methods therefor
US20040149624A1 (en) * 2003-02-05 2004-08-05 Henry Wischusen Easy-open display shipping container
US20050247595A1 (en) * 2004-05-04 2005-11-10 Debusk Patrick J Retail dispensing and display carton
US20060054676A1 (en) * 2004-08-13 2006-03-16 Wischusen Henry Iii Easy open container
US20060071060A1 (en) * 2004-10-05 2006-04-06 Mike Naef Carton for sheet items having a closable integral lid
US20070084543A1 (en) * 2001-09-21 2007-04-19 Copar Corporation Apparatus and Method for Manufacturing Corrugated Boards
US20070137771A1 (en) * 2000-04-27 2007-06-21 Zoeckler Michael D Paperboard Cartons With Laminated Reinforcing Ribbons And Transitioned Scores And Method Of Making Same
US20080078820A1 (en) * 2006-10-02 2008-04-03 The Coca-Cola Company Split carton
US20080272184A1 (en) * 2007-05-02 2008-11-06 John Bitner Frangible Shipping Carton and Associated Methods
US8317671B1 (en) 2000-04-27 2012-11-27 Graphic Packaging International, Inc. Paperboard cartons with laminated reinforcing ribbons and method of making same
US8881969B1 (en) 2013-03-11 2014-11-11 Fred Prins Recycle strip

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475052A (en) * 1947-09-08 1949-07-05 Milprint Inc Art of manufacturing composite commodity wrappers
US2544020A (en) * 1948-09-03 1951-03-06 Roderick W Hoag Method and machine for making and filling fluted containers
US2568349A (en) * 1950-06-22 1951-09-18 Paper Chemistry Inst Corrugated board and method of making same
US2608341A (en) * 1947-10-20 1952-08-26 American Can Co Fiber container with improved tearing strip
US2679349A (en) * 1948-09-30 1954-05-25 Charles D Mullinix Tear strip package and blank therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475052A (en) * 1947-09-08 1949-07-05 Milprint Inc Art of manufacturing composite commodity wrappers
US2608341A (en) * 1947-10-20 1952-08-26 American Can Co Fiber container with improved tearing strip
US2544020A (en) * 1948-09-03 1951-03-06 Roderick W Hoag Method and machine for making and filling fluted containers
US2679349A (en) * 1948-09-30 1954-05-25 Charles D Mullinix Tear strip package and blank therefor
US2568349A (en) * 1950-06-22 1951-09-18 Paper Chemistry Inst Corrugated board and method of making same

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909312A (en) * 1956-10-09 1959-10-20 Walworth Engineering Company Tear strip box
DE1132857B (en) * 1957-04-05 1962-07-05 Timken Roller Bearing Co Container for packaging of a bearing
US2936941A (en) * 1957-10-08 1960-05-17 Celanese Corp Cartons
US3189502A (en) * 1961-03-03 1965-06-15 West Virginia Pulp & Paper Com Method of making impregnated corrugated paperboard sheets on a corrugator machine
US3136474A (en) * 1961-10-20 1964-06-09 Weyerhaeuser Co Container
US3214011A (en) * 1963-01-03 1965-10-26 Waldorf Paper Prod Co Tire cover
US3432859A (en) * 1963-01-29 1969-03-11 Gen Electric Radome and method for making same
US3232154A (en) * 1963-05-10 1966-02-01 Lipton Inc Thomas J Method and apparatus for rendering a corrugated carton readily openable
US3181768A (en) * 1963-07-01 1965-05-04 Weyerhaeuser Co Shipping container for furniture or the like
US3252385A (en) * 1963-08-21 1966-05-24 American Can Co Method of making an easy-open fibre container
US3276667A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Divisible container
US3276666A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Tray-forming containers
US3276665A (en) * 1965-05-28 1966-10-04 Waldorf Paper Prod Co Tear strip containers
US4177936A (en) * 1977-06-06 1979-12-11 International Paper Company Variable flute container
US4784271A (en) * 1987-11-20 1988-11-15 The Procter & Gamble Company Tear strip openable shipping/display container with butt joint
US4871345A (en) * 1987-11-20 1989-10-03 The Procter & Gamble Company Method of making tear strip openable shipping/display container and blanks therefor
US6129211A (en) * 1997-01-17 2000-10-10 Prakken; Bouwe Rectangular shipping box and display container
US6102277A (en) * 1999-07-23 2000-08-15 Krapohl, Sr.; Robert J. Reducible cereal box packaging
US8403820B2 (en) 2000-04-27 2013-03-26 Graphic Packaging International, Inc. Paperboard cartons with laminated reinforcing ribbons and transitioned scores and method of making same
US8403819B2 (en) * 2000-04-27 2013-03-26 Graphic Packaging International, Inc. Paperboard cartons with laminated reinforcing ribbons and transitioned scores and method of making same
US8317671B1 (en) 2000-04-27 2012-11-27 Graphic Packaging International, Inc. Paperboard cartons with laminated reinforcing ribbons and method of making same
US20080119343A1 (en) * 2000-04-27 2008-05-22 Zoeckler Michael D Paperboard Cartons with Laminated Reinforcing Ribbons and Transitioned Scores and Method of Making Same
US20070137771A1 (en) * 2000-04-27 2007-06-21 Zoeckler Michael D Paperboard Cartons With Laminated Reinforcing Ribbons And Transitioned Scores And Method Of Making Same
US6478159B1 (en) * 2000-05-22 2002-11-12 Warner-Lambert Company Combination shipping and display container and methods therefor
US6371365B1 (en) 2000-12-21 2002-04-16 Kraft Foods Holdings, Inc. Display and shipping carton
US20110126977A1 (en) * 2001-09-21 2011-06-02 Copar Corporation Apparatus and Method for Manufacturing Corrugated Boards
US20070084543A1 (en) * 2001-09-21 2007-04-19 Copar Corporation Apparatus and Method for Manufacturing Corrugated Boards
US7833376B2 (en) 2001-09-21 2010-11-16 Copar Corporation Apparatus and method for manufacturing corrugated boards
US6976588B2 (en) 2003-02-05 2005-12-20 Rock-Tenn Shared Services, Llc Easy-open display shipping container
US20040149624A1 (en) * 2003-02-05 2004-08-05 Henry Wischusen Easy-open display shipping container
US20050247595A1 (en) * 2004-05-04 2005-11-10 Debusk Patrick J Retail dispensing and display carton
US7284662B2 (en) * 2004-05-04 2007-10-23 Graphic Packaging International, Inc. Retail dispensing and display carton
US20060054676A1 (en) * 2004-08-13 2006-03-16 Wischusen Henry Iii Easy open container
US20060071060A1 (en) * 2004-10-05 2006-04-06 Mike Naef Carton for sheet items having a closable integral lid
US20080078820A1 (en) * 2006-10-02 2008-04-03 The Coca-Cola Company Split carton
US8955737B2 (en) 2006-10-02 2015-02-17 The Coca-Cola Company Split carton
US9027826B2 (en) 2007-05-02 2015-05-12 Watson Laboratories, Inc. Frangible shipping carton and associated methods
US20080272184A1 (en) * 2007-05-02 2008-11-06 John Bitner Frangible Shipping Carton and Associated Methods
US9611068B2 (en) 2007-05-02 2017-04-04 Allergan Sales, Llc Frangible shipping carton and associated methods
US9216838B2 (en) 2007-05-02 2015-12-22 Watson Laboratories, Inc. Frangible shipping carton and associated methods
US9422079B2 (en) 2007-05-02 2016-08-23 Watson Laboratories, Inc. Frangible shipping carton and associated methods
US20110057023A1 (en) * 2007-05-02 2011-03-10 Watson Laboratories, Inc. Frangible Shipping Carton and Associated Methods
US8881969B1 (en) 2013-03-11 2014-11-11 Fred Prins Recycle strip

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