US3394866A - Blank for siftproof cartons - Google Patents
Blank for siftproof cartons Download PDFInfo
- Publication number
- US3394866A US3394866A US611211A US61121167A US3394866A US 3394866 A US3394866 A US 3394866A US 611211 A US611211 A US 611211A US 61121167 A US61121167 A US 61121167A US 3394866 A US3394866 A US 3394866A
- Authority
- US
- United States
- Prior art keywords
- blank
- carton
- flaps
- dust
- flap
- 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
Links
- 239000000428 dust Substances 0.000 description 57
- 238000005520 cutting process Methods 0.000 description 27
- 239000000463 material Substances 0.000 description 13
- 238000007789 sealing Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000007792 addition Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000012858 resilient material Substances 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000030922 Tibial Meniscus injury Diseases 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/20—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by folding-down preformed flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
- B31B50/626—Arrangements for permitting the glue to set
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/0227—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/004—Closing boxes
- B31B50/0044—Closing boxes the boxes having their opening facing upwardly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING 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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/76—Opening and distending flattened articles
- B31B50/78—Mechanically
- B31B50/784—Mechanically for setting up boxes having their opening facing upwardly
Definitions
- FIG. 1 A first figure.
- the blank for a tubular end sealed carton is provided with inner dust flaps widened by small outwardly-projecting, softened, tooth-like formations on its parallel edges; the projections being formed by providing a tear line between dust flaps and adjacent blank portions formed by closely spaced rows of closely spaced intermittent cuts; the projections being softened by debossing the space between rows of cuts; the cuts of the two rows being staggered relative one another.
- the present invention relates to side-seamed, endsealed, rectangular, tubular cartons and, especially, to siftproof cartons of the character described and, more specifically, to the blanks fi'om which such siftproof cartons may be formed.
- the object of the present invention is to provide a carton blank which, when passed through standard end-sealing equipment, particularly of the continuous motion, linear movement type, modified in the manner described in my said companion application, will apply, automatically, positive interior pressure of the dust flaps of the carton against the overlying outer closure flap as well as against the walls adjacent to the side edges of the dust flaps, to thereby attain, when exterior pressure is applied in the sealing process, positive and more complete bonding between the dust flaps and the overlying outer closure flap, and to close wholly and completely any space between the edges of the dust flap and the adjacent side walls, to provide a completely siftproof and substantially hermetic seam between them.
- FIG. 1 is a top plan view, broken across, of one embodiment of a blank of the present invention
- FIG. 2 is an isometric view of a folded, glued and set up blank with the end-forming flaps severed from one another and in position ready for folding and sealing;
- FIG. 3 is a more or less diagrammatic view of a constant, linear motion end-sealing apparatus with cartons in various stages of the sealing process;
- FIG. 4 is a more or less schematic section taken on line 44 of FIG. 3;
- FIG. 5 is a section similar to that of FIG. 4 but taken on line 55 of FIG. 3;
- FIG. 6 is a fragmentary, perspective view of the sealed carton end of FIG. 5; shown partly broken away, to disclose details;
- FIG. 7 is a plan view of the cutting end of a knife for forming the blank of the present invention, partly broken away to illustrate details;
- FIG. 8 is a fragmentary, sectional view taken on line 88 of FIG. 7;
- FIG. 9 is a section taken on line 99 of FIG. 7;
- FIG. 10 is an elevational and partly sectional view showing the knife of FIG. 7 in position for forming the tear line in a carton blank;
- FIG. 11 is a view similar to that of FIG. 10, showing the knife in position of cutting and debossing the carton blank;
- FIG. 12 is a fragmentary, more or less diagrammatic view of a portion of the carton blank with the tear line between dust flap and end-closure flap illustrated with a portion of the dust flap broken away, the arrow indicating the course of the grain in the cardboard.
- the present invention consists in the adding to the width of the dust flaps on each side thereof by cutting the additions away from the adjacent closure flaps and/or glue flap and simultaneously conditioning such marginal additions to become relatively softer and bendable and imparting to them gasket-like characteristics; and so cutting and scoring such blanks that they may, when and as the carton is set up and closed for sealing, first, serve to bow the dust flaps along the partly cut fold line provided in them, upwardly, so that the dust flaps will exert, initially, positive pressure against the overlying closure flap, in preparation for the application of exterior sealing pressure, and upon full application of such pressure, their side edges will be compressed against the sides of the carton to form a perfect and imperforate seal.
- the excess width of the dust flap is provided in the form of a serrated edge; still more preferably, to have serrations in the form of rectangular indentations or recesses that provide substantially square teeth which are capable of being offset and of spreading under pressure, and between which adhesive may accumulate to be pressed out against the side walls of the cartons and the overlying closure flap to form a most effective, bonded seal, for even micro-pulverized materials.
- the invention also resides in the provision of a die knife section which is not only capable of forming the close, relatively tiny serrations or teeth in the edges of the dust flaps, but is also capable of conditioning the teeth at the same time for at least partial defibrillation and to render them relatively soft, bendable, and compressible.
- the carton blank of the present invention is shown to be of generally conventional construction, being cut and scored to provide front and rear wall panels, 10 and 12, each one formed with an outer closure flap, 14 and 16 respectively, at its ends, defined from wall panels 10 and 12 by fold lines, 15 and 17; the end wall panels, 18 and 20, each formed with an inner dust flap, 22 and 24 respectively, at their ends, defined from the end wall panels by fold lines, 23 and 25; and a glue flap, 26, along one longitudinal edge of the blank.
- the closure flaps 18 and 20 may each be of a height greater than half the width of an end wall panel and, preferably, equal to such width.
- the dust flaps 22 and 24 are of a height not exceeding half the width of the front and rear panels 10 and 12.
- the blank of the present invention departs from the conventional in the formation of the dust flaps 22 and 24 which are of greater width than the end wall panels 18 and 20 from which they extend; the excess width being provided by lateral extensions on each side of the panel taken from the width of the adjacent marginal edge portions of flaps 14 and 16 and from the material of the glue flap 26, when the glue panel extends from the edge of an end wall panel.
- the edges of the dust flap extensions may be serrated, preferably with serrations in the form of rectangular teeth, 28.
- teeth 28 may be produced by substituting for the conventional cut line at the edges of the dust flaps a tear line formed of a pair of closely spaced rows of short, closely spaced cuts; with the cuts in one row arranged in staggered relation to the cuts in the other.
- One row of cuts is disposed at the position of the edge of the flap of a normal blank and the other row defining the edge of the extension.
- the distance between rows of cuts, the length of each cut and the spaces between cuts may be about the same; namely, about one thirty-second of an inch
- the blank of the present invention further departs from the conventional in having the fold lines 23 and 25 peaked slightly from their ends towards their center, and in having the fold lines, 30 and 32, formed in the dust flaps 22 and 24 extending longitudinally thereof from the peaks of the fold lines 23 and 25.
- the fold lines 30 and 32 may be partly cut through the thickness of the board on its exterior.
- the blank of the present invention may be folded and glued in the conventional manner and may be erected in tubular form (FIG. 2) in the conventional way and may be sealed by moving along through the different stages of a conventional constant motion, straight line movement, sealing apparatus, as is diagrammatically illustrated in FIG. 3 of the drawings, with the front and rear walls and 12 disposed parallel to the direction of movement in the apparatus, facing the guide rails, 33, such apparatus being modified by the additions hereafter described.
- the erected carton in its initial position in the apparatus, shown at A has the flaps 14 and 16 laterally outwardly offset to horizontal position, while flaps 22 and 24 remain erect.
- the carton is then moved to position B, where dust flaps 22 and 24 are folded to horizontal position to overlie the carton opening, also as conventional.
- the carton is then moved to position C, in the course of which movement an adhesive, 31, is applied to selected flaps for adhering one of the closure flaps, as 14, to dust flaps 22 and 24 and the other closure flap to closure flap 14.
- adhesive may be in the form of a glue or a thermoplastic material.
- a thickened band, 32, of adhesive may be applied to the marginal portions of the edges of the coated flaps which are adjacent to the front and rear panels 10 and 12; such additional band of adhesive being especially desirable when the carton is to be made siftproof even to micropulverized material.
- thermoplastic adhesive when used it is applied to the blank before folding and gluing and it is merely reconstituted to adhesive state at position C by the application of the conventional heated knives.
- the invention provides for the gradual and progressive compression or pinching of the front and rear walls 10 and 12 slightly toward one another, from one edge of the walls to the other, at a point immediately adjacent the fold lines 15 and 17, to press said walls against the edges of the flaps 22 and 24 and, substantially immediately after commencing the compression or pinching of the walls 10 and 12, to apply pressure from above to the overlying flaps to flatten them out and press the marginal edge portions of flaps 22 and 24 against the carton sides 10 and 12; the combined pressures tending to bend and offset the teeth 28 to provide a greater area of contact between the edges of flaps 22 and 24 with walls 10 and 12.
- Such pressures also tend to spread out the edges of teeth 28.
- the combined pressures on the flaps 22 and 24 also tend to press out the glue into the spaces between teeth 28 and into any space between the edges of the dust flaps and side walls of the carton contacted by them, to seal off any such spaces and render the seal siftproof.
- an excess amount of glue is pressed out to close such spaces, to make the seal siftproof even for micropulverized material.
- the exterior flap-flattening pressure may be applied in any desired manner, as by pressure plate, 36, which is diagrammatically shown in broken lines in FIG. 3 for clarity of illustration.
- the pinching pressure may be effected by means of shims forming pinching rails, 38, applied to the inner surface of guide rails 33; such pinching rails 38 being formed with lead edges that are tapered in the direction of their supporting guide rails, to thereby gradually pinch the wall panels 10 and 12 towards one another as the carton is moved between them and thus effect a compression without risk of damage to the carton walls.
- the pinching and sealing pressures may both be continued until the bond between the flaps is set. It may here also be stated that the facing surfaces of the pinch rails 38 may be coated with a permanent plastic lubricant of the type that is frequently used on the guide rails 33 themselves, to reduce the friction on the carton moving between them.
- Such cutting knife section is shown to consist of a pair of blades each having intermittent, rectangular cut-outs in its cutting edges; the blades being spaced from one another to provide the requisite distance of about one thirty-second of an inch (%2") between them, and the cutting portions of the knives and the spaces between them being formed of a like length, and of shoulder blades arranged to each side of the two blades, the upper edges of the shoulder blades tapering in the direction of the cutting blades and terminating short of such cutting edges.
- the knife when pouring or troweling the semi-fluid material, the knife may be placed between two flat plates to prevent the fluid from running out before it completely sets and to make the sides of the set resilient body continuous with the outer surfaces of the shoulder blades.
- two blades, 50 each having a tapered cutting edge, 52, intersecting one of its sides and intermittent, regularly spaced rectangular recesses, 54, formed in its cutting edge forming evenly sized teeth, 56, are disposed with their said sides facing one another, and a metal bar, 58, of a thickness to provide the desired space between the cutting edges, in the instance of the present invention such bar being one thirty-second of an inch thick, is placed between the blades, with the upper edge of the bar lying a distance below the cutting edges 52 of the blades 50; two shoulder blades, 60, having tapered upper edges, 62, likewise formed to intersect one of their sides, are disposed with their said sides set against the outer sides of blades 50 with the edges 62 terminating short of the edges 52 of the blades.
- the poured, solid-set, resilient mass, 64 fills the space between the cutting blades 50 above the spacing bar 58, the spaces between the teeth 56 formed in the cutting edge of'the blades, and the space above the edges of the shouder blades 60, to a level with the edges of the cutting blades 50.
- the rubber mass 64 will be all in one piece, the portions thereof above the shoulder blades and above the spacing plate being connected by the portions thereof lying in the spaces 54 between the teeth 56.
- blades 50 have been shown with their cutting edges formed by a single taper on one side edge thereof and separated by a spacing bar, it may here be stated that their cutting edges may be formed by a double taper so as to be spaced from each of its sides; the angles of the tapers forming the cutting edges of such two knives being so arranged as to space such cutting edges the proper narrow distance as required.
- the die knife section described above may be set in the wooden back of the cutting die in conventional manner, in appropriate position for forming the tear lines at the edges of the dust flaps 22 and 24, with one of its blades in alignment with the fold line defining the flapsu-pporting end wall panel from the lateraly adjacent blank portions, and the other blade outwardly disposed relative to the first.
- spaced, built-up mats, 66 and 68 may be provided on the steel jacket, 70, on which the blank is cut and scored.
- One of the mats, as 66 may be thicker than the other, as by being formed of two plies of material, such as cardboard, as compared to a single ply for the second mat 68, and such thicker mat 66 may be disposed With its longitudinal edge in vertical alignment with inner of the knife blades 50.
- the other of the mats may be spaced outwardly of the first mat, a distance preferably wider than the thickness of the knife.
- This distortion and softening of the cardboard material between the blades of the knife tends to dela'minate the cardboard fabric, at least to a certain extent, to stretch the fibers in the distorted portion of the blank, which lie with the grain of the cardboard, and to cause defibrillation, to an extent, of the edges of the teeth formed when the dust flap is severed from its laterally adjacent blank portions, rendering the row of teeth connected to the dust flap compressible and bend-able at their bases.
- suitable plows may be provided on the sealing apparatus, in appropriate position to sever the dust flaps from the adjacent blank portions, along the tear line, as the folded and setup blank is moved on the apparatus. It may here also be stated that the recesses between teeth 28 may be of greater depth than width.
- the teeth 28 need not extend the full length of the dust flap edges but may extend only along the inner portion thereof; the most critical tooth being the first tooth at the inner ends of the dust flap edges, which tooth must be directly disposed against fold lines 23 and 25 as the case may be. A so positioned tooth will be sufficient, in many instances, to close any possible pin holes at the corners of the car-ton that frequently occur in conventional cartons.
- the blank of the present invention may be readily formed at their regular rate of speed on conventional apparatus which need be modified by only minor additions. It will also be apparent that such blanks may be glued, folded and erected and sealed on conventional apparatus at the regular rate of speed of the apparatus, and that such apparatus, likewise, need not be materially modified, any modification consisting merely of adding a few simple parts thereto.
- a blank for a cardboard carton including pairs of opposed wall panels defined from one another by fold lines, one pair of said opposed Wall panels each having a dust fiap at one end defined therefrom by a fold line and another pair of said opposed wall panels each having a closure flap at the corresponding end defined therefrom by a fold line; said closure flaps adapted to be disposed over said dust flaps when said blank is set up and sealed; said blank having a small projection protruding into the corner formed 'by at least one side edge of each said dust flap with the edge of the wall panel supporting the adjacent closure flap, said projection connected to said dust flap and formed from part of said adjacent closure flap, one edge of said projection defined by the edge of said wall panel supporting said adjacent closure flap.
- a cardboard blank for a carton including pairs of opposed wall panels defined from one another by fold lines oriented for folding into tubular form, one pair of said panels each having a dust flap connected thereto at one end and defined therefrom by a fold line, and another pair of said panels each having a closure flap at said end defined therefrom by a fold line, said closure flaps adapted to be disposed over said dust flaps when said blank is set up and sealed, said dust flaps being of excessive width relative to the width of the wall panel to which it is connected and overhanging the adjacent wall panel on at least one side of said connected wall panel at a point immediately adjacent thereto, said excess width portion being narrow and having a weakened fibrous structure rendering it yieldable relative to the remainder of the structure of the dust flap.
- a blank for a cardboard carton including pairs of opposed wall panels defined from one another by fold lines oriented to fold said panels into a tube, one pair of said wall panels each having a dust flap at one end defined therefrom by a fold line and another pair of said wall panels each having a closure flap at one end defined therefrom by a fold line, each said dust flap being of a length not greater than half of the width of an adjacent wall panel said closure flaps adapted to overlie said dust flaps when said blank is set up and sealed, each said dust flap having at least one longitudinally extending fold line formed therein at a midpoint thereof oriented for folding in the same direction as said panel defining fold lines whereby said dust flaps will fold outwardly against an overlying closure flap when said blank is set up and sealed.
- a blank for a carton of the character described comprising a sheet of cardboard cut and scored to define two pairs of alternating panels defined from one another by parallel scored fold lines, the panels of one of said pairs each having a dust flap extension at an end thereof defined therefrom by a scored fold line, the wall panels of the other of said pair having a closure flap extension at said ends defined therefrom by a scored fold line, said dust flaps defined along their longitudinal edges from the laterally adjacent blank sections by a closely spaced pair of longitudinal rows of closely spaced cuts, one of said rows having its cuts substantially aligned with the scored fold line defining its supporting wall panel from the laterally adjacent blank section, the other of said rows of cuts disposed outwardly thereof, the first cut in said first row being spaced from the fold line defining said dust flap from its supporting wall panel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Making Paper Articles (AREA)
- Closing Of Containers (AREA)
- Cartons (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB931566 | 1966-03-03 | ||
GB3218666 | 1966-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3394866A true US3394866A (en) | 1968-07-30 |
Family
ID=26242860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US611211A Expired - Lifetime US3394866A (en) | 1966-03-03 | 1967-01-04 | Blank for siftproof cartons |
Country Status (7)
Country | Link |
---|---|
US (1) | US3394866A (enrdf_load_stackoverflow) |
CH (1) | CH487759A (enrdf_load_stackoverflow) |
DE (2) | DE1561423A1 (enrdf_load_stackoverflow) |
GB (1) | GB1184172A (enrdf_load_stackoverflow) |
NL (2) | NL6701127A (enrdf_load_stackoverflow) |
NO (1) | NO121200B (enrdf_load_stackoverflow) |
SE (1) | SE318521B (enrdf_load_stackoverflow) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3511431A (en) * | 1968-01-04 | 1970-05-12 | Stanley Milton Silver | Siftproof cartons |
US4437570A (en) | 1982-07-13 | 1984-03-20 | Champion International Corporation | Shipping carton with case knife protection for inner cartons |
DE3829970A1 (de) * | 1988-09-03 | 1990-03-15 | Henkel Kgaa | Faltschachtel aus einem faltzuschnitt |
US5868057A (en) * | 1996-07-23 | 1999-02-09 | Western Printing Machinery Company | Perforation rule for rotary cutting system |
ES2716910A1 (es) * | 2019-03-19 | 2019-06-17 | Controlpack Systems S L | Maquina para el cierre de cajas de carton |
US12064063B2 (en) | 2019-09-23 | 2024-08-20 | Gpcp Ip Holdings Llc | Automated toilet seat cover dispenser |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3816856A1 (de) * | 1988-05-18 | 1989-11-30 | Focke & Co | Verfahren und vorrichtung zum pruefen von karton-packungen |
US4927076A (en) * | 1989-01-24 | 1990-05-22 | Hemox, Inc. | Medical appliance disposal container |
DE10204972A1 (de) * | 2002-02-06 | 2003-08-14 | Klug Conservation Walter Klug | Faltzuschnitt für Schachteln und Schachtel zur Archivierung und zum Transport von Exponaten |
IT202000005005A1 (it) * | 2020-03-09 | 2021-09-09 | Cmc Spa | Macchinario per imballaggio con stazione di piegatura e chiusura di un cartone preformanto e relativo metodo |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US88165A (en) * | 1869-03-23 | Improved paper box | ||
US2329628A (en) * | 1939-08-11 | 1943-09-14 | Dewey And Almy Chem Comp | Container |
US3182887A (en) * | 1963-07-29 | 1965-05-11 | Crown Zellerbach Corp | Container |
US3199762A (en) * | 1963-07-29 | 1965-08-10 | Olin Mathieson | Collapsible container |
-
1966
- 1966-03-03 GB GB35704/66A patent/GB1184172A/en not_active Expired
-
1967
- 1967-01-04 US US611211A patent/US3394866A/en not_active Expired - Lifetime
- 1967-01-24 NL NL6701127A patent/NL6701127A/xx unknown
- 1967-01-24 NL NL6701129A patent/NL6701129A/xx unknown
- 1967-01-26 SE SE1133/67A patent/SE318521B/xx unknown
- 1967-01-28 DE DE19671561423 patent/DE1561423A1/de active Pending
- 1967-01-28 DE DE19671561424D patent/DE1561424B1/de active Pending
- 1967-01-30 NO NO166620A patent/NO121200B/no unknown
- 1967-01-31 CH CH141667A patent/CH487759A/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US88165A (en) * | 1869-03-23 | Improved paper box | ||
US2329628A (en) * | 1939-08-11 | 1943-09-14 | Dewey And Almy Chem Comp | Container |
US3182887A (en) * | 1963-07-29 | 1965-05-11 | Crown Zellerbach Corp | Container |
US3199762A (en) * | 1963-07-29 | 1965-08-10 | Olin Mathieson | Collapsible container |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3511431A (en) * | 1968-01-04 | 1970-05-12 | Stanley Milton Silver | Siftproof cartons |
US4437570A (en) | 1982-07-13 | 1984-03-20 | Champion International Corporation | Shipping carton with case knife protection for inner cartons |
DE3829970A1 (de) * | 1988-09-03 | 1990-03-15 | Henkel Kgaa | Faltschachtel aus einem faltzuschnitt |
US5868057A (en) * | 1996-07-23 | 1999-02-09 | Western Printing Machinery Company | Perforation rule for rotary cutting system |
ES2716910A1 (es) * | 2019-03-19 | 2019-06-17 | Controlpack Systems S L | Maquina para el cierre de cajas de carton |
US12064063B2 (en) | 2019-09-23 | 2024-08-20 | Gpcp Ip Holdings Llc | Automated toilet seat cover dispenser |
Also Published As
Publication number | Publication date |
---|---|
NO121200B (enrdf_load_stackoverflow) | 1971-01-25 |
NL6701127A (enrdf_load_stackoverflow) | 1967-09-04 |
SE318521B (enrdf_load_stackoverflow) | 1969-12-08 |
CH487759A (de) | 1970-03-31 |
DE1561424B1 (de) | 1971-03-25 |
DE1561423A1 (de) | 1970-03-19 |
GB1184172A (en) | 1970-03-11 |
NL6701129A (enrdf_load_stackoverflow) | 1967-09-04 |
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