A Sidewall Includes A Folded Lateral Extension Of An Adjacent Sidewall (e.g., "corner Flap") Patents (Class 229/190)
  • Patent number: 9962895
    Abstract: A method and an apparatus for realizing cartons for packing includes feeding a cardboard band (2) for packing along an advancement direction (A) which is parallel to the development direction of the cardboard band (2) and making a first score line (II) and a second score line (12) on the cardboard band (2), so as: to identify a central sector; a first lateral sector (4), and a second lateral sector (5). The method further includes identifying regions of band (8) on the carton (2), making on each region of band (8) at least a first cut (21), a second cut (22), a third cut (23) and a fourth cut (24) oriented transversally so that a first closing wing (49), a first reinforcing wing (51) a second reinforcing wing (52), a second closing wing (50), a third reinforcing wing (53) and a fourth reinforcing wing (54) are defined. The band of carton (2) is cut transversally so as to separate the regions of band (8) from one another, thus obtaining cartons (I) for packing.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 8, 2018
    Assignee: F.L. AUTO S.r.L.
    Inventor: Giuseppe Ponti
  • Patent number: 9434496
    Abstract: A system for packaging items in a custom sized box comprises a blank forming apparatus for forming a custom sized blank and a box folding apparatus for folding a custom sized box from the custom sized blank. The box folding apparatus comprises a rectangular throat frame having an adjustable rectangular throat opening and a suction device with suction nozzles for sucking the bottom panel of the blank. A displacement device is provided for lowering the suction nozzles from a top position in which top surfaces of the suction nozzles lie in a plane supporting the blank towards a bottom position, thereby causing folding of the side and end panels of the blank with respect to the bottom panel as the blank is drawn through the throat opening.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 6, 2016
    Assignee: NEOPOST TECHNOLOGIES
    Inventor: Herman Sytema
  • Patent number: 9045251
    Abstract: A container is formed from a one-piece blank including a bottom panel, first and second opposed side walls, and first and second end walls. A top lid panel is foldably attached to the first side wall and a bottom lid panel is foldably attached to the second side wall. A plurality of reinforcing locking tabs is formed in the respective top and bottom lid panels. Each of the respective plurality of reinforcing locking tabs is sandwiched between their respective inner panel and middle panels so as to prevent the side walls from being distorted upon outward pressure applied to these side walls when the container is unreasonably over-packed during shipping and transportation.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: June 2, 2015
    Assignees: IP CARTONES Y CORRUGADOS, S. DE R.L. DE C.V., INTERNATIONAL PAPER COMPANY
    Inventors: Hector Alonso Sanchez, Jose Manuel Fraga Munoz, David Kretz
  • Patent number: 8714436
    Abstract: The invention relates to a tray for transporting and displaying items such as yogurt containers. The tray is of the type comprising a bottom wall (1), side walls (2, 3, 4, 5) perpendicular to the bottom (1) and side flaps (27) enabling the attachment of a first wall (2, 4) to the adjacent wall (3, 5), each flap being hingedly connected to the side edge of the first wall (2, 4) and attached to the following wall (3, 5). According to the invention, the hinged connection of the side flap (27) to the first wall is provided by an interface area (16) in the shape of a triangle the apex (17) of which points toward the free upper edge (31, 32) of the two consecutive side walls (2, 3, 4, 5) and the base (18) of which rests on the bottom wall (1), this triangular interface area (16) being slanted from its base (18) to the apex (17) toward the outside of the outline defined by the bottom wall (1). The invention can be used for trays for transporting products such as yogurt containers.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: May 6, 2014
    Assignees: Societe Normande de Carton Ondule, Papeteries D-Espaly, Emballages Laurent SAS, STE Mediterraneanne D'Emballages
    Inventors: Denis Valot, Jean-Yves Malnoy, Frederic Catherine, Damien Tartre
  • Publication number: 20140103101
    Abstract: A container comprising a cardboard enclosure having six sides, wherein the left side of the container and the right side of the container each comprises at least a first layer of cardboard and a second layer of cardboard for increased top load strength.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Inventor: Mauro Alvarado, JR.
  • Publication number: 20140042216
    Abstract: Blanks are provided for forming boxes with side supports formed from flaps extending from the front and back of the box. The side supports are on the outside of the box and are of full height, i.e., as tall as the total height of the box, or flush with the top and bottom of the box. The side supports may be double-layer supports formed by folding the flaps. Boxes having full-height side supports and processes for forming such boxes are also provided.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 13, 2014
    Applicant: RETAIL READY PACKAGES INC.
    Inventor: HUGH T. CAMERON
  • Publication number: 20130048704
    Abstract: A container is adapted to transport food or other articles. The container includes a floor, two end walls coupled to the floor, a left closure coupled to the end walls and the floor, and a right closure coupled to the end walls and the floor.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Inventors: William H. Lewis, William P. Gnann, Julianne J. Geiger, Michael B. McLeod
  • Patent number: 8220633
    Abstract: Embodiments of various stacking cartons that can be erected from a one-piece blank are provided. In this regard, a representative carton, among others, comprises a bottom wall, side walls and end walls. The side walls are foldably attached to left and right edges of the bottom wall. The end walls are foldably attached to top and bottom side edges of the bottom wall such that the side walls are located between the end walls. Each end wall is foldably attached to an end panel that is designed to fold and engage the inner surface of the end wall. The end wall is foldably attached to first reinforcing side panels at side edges of the end wall. Each first reinforcing side panel is foldably attached to a second reinforcing side panel that is designed to fold and engage the inner surface of the first reinforcing side panel.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: July 17, 2012
    Assignee: Georgia-Pacific Corrugated LLC
    Inventor: Phil W. Weideman
  • Publication number: 20120111933
    Abstract: The invention relates to a cardboard tray made of three parts, to an assembly of blanks, and to a device and method for producing such a tray. The tray comprises a first part defining a bottom connected by first fold lines to two first opposite sidewalls and two second parts defining at least one longitudinal first flap connected to said second wall by a second fold line and glued on the bottom, and two sets of transverse flaps, each comprising at least on transverse flap glued to a first corresponding opposite side wall, respectively.
    Type: Application
    Filed: March 22, 2010
    Publication date: May 10, 2012
    Applicant: OTOR
    Inventors: Bernard Delause, Gerard Mathieu, Didier Desertot
  • Patent number: 7740164
    Abstract: The embodiments of the present invention provide a blank foldable material that may be configured to form a container. When formed, the container is self-locking and includes a rollover panel assemblies formed by spaced apart fold lines that forms bearing surfaces for vertically stacked containers. The container includes a inside taper that functions to prevent telescoping of vertically stacked container, and to hold the various corner panels in their proper location. The blank is configured to form a container that includes corners having multiple thicknesses for strength and stability. The container is self locking, easy us manufacture yet high strength.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: June 22, 2010
    Assignee: International Paper Company
    Inventor: Jack A. McClure
  • Patent number: 7686206
    Abstract: A collapsible box comprising a body having a front panel, a bottom panel, a back panel, a top panel, a closing panel, a left panel, a right panel, a front folding panel, and a back folding panel. Each of the front and back folding panels comprises foldably connected center panel and two side panels. The bottom panel edges are foldably connected to edges of the front, left, back, and right panels. The opposite edges of the top panel are foldably connected to the back and closing panels. The edges of the front folding panel are foldably connected to one set edges of the left and right panels, and edges of said back folding panel are foldably connected to opposite set edges of the left and right panels.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: March 30, 2010
    Assignee: Bath & Body Works Brand Management, Inc.
    Inventor: Hanna Bondarik
  • Publication number: 20090314827
    Abstract: A stackable corrugated box made from a foldable blank comprising a base having two opposed first edges and second edges, wall portions extending from the first edges, side wall portions extending from the second edges. The wall portions comprise a first part connected to the base and a second part connected to the first part, provided with flaps. The first parts include crush and knife cut features capable of flexing outward. When the box is erected, the side wall portions are folded perpendicularly to the base and connected via the flaps to upwardly directed walls defined by the first and second parts also folded perpendicularly to the base. The upwardly directed walls are provided with projecting tabs, so that when the box is stacked on another similar box, the crush and knife cut features flex outward creating space for the tabs from the box placed below.
    Type: Application
    Filed: November 25, 2008
    Publication date: December 24, 2009
    Applicant: CASCADES CANADA INC.(a Canadian company)
    Inventor: Steve Grigor
  • Patent number: 7597242
    Abstract: The present invention is a container for use in baking and shipping food items. The container is formed of a paperboard material and includes a heat-resistant coating applied to all of the interior surfaces of the container. The coating enables a number of food items to be positioned within the container in contact with the coating such that the container and food items can be baked to properly prepare the food items therein. After baking, the container and food items can then be wrapped or otherwise packaged for shipment without transferring the food items to a separate shipping container. The container also includes a pair of end walls that are movable with respect to the container between retaining and dispensing positions to enable the container to be configured as serving tray for the items contained therein.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 6, 2009
    Assignee: Innovative Fiber, LLC
    Inventor: Jeffrey S. Covelli
  • Patent number: 7487904
    Abstract: The present invention includes a blank and container formed of cellulose-based materials configured to form a reusable and collapsible container. The container in the partially assembled, knock-down position lies substantially flat and is capable of being stacked and shipped. Arrival at a job site or at a time requiring the use of the container, the partially assembled knock-down container may be easily converted into a fully erect container ready for use as intended. Once loaded with product, the first and second top panels may be folded down to enclose the container. The container positions the relief scores primarily in the side panels with only a single relief score in the bottom panel. This configuration allows the bottom panel to distend while the container is in the collapsed state while not adversely affecting overall container strength.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 10, 2009
    Assignee: International Paper Co.
    Inventor: Jack A McClure
  • Patent number: 7152777
    Abstract: The present invention is directed to a stackable container and container blank. In accordance with the present invention, a single sheet of foldable material is cut and scored to define container blank. The blank includes a bottom panel and a side panel connected with the bottom panel. An end panel is connected with the bottom panel. A top panel is connected with said side panel opposite the bottom panel. Also, a top panel flap is connected with said top panel. The blank further includes a corner first panel that is connected with the end panel. Also, a corner second panel is connected with the corner first panel opposite the end panel. Further, a corner third panel connected with said corner second panel opposite said corner first panel, said corner third panel defining a corner third panel cutout.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: December 26, 2006
    Assignee: Weyerhaeuser Company
    Inventor: Jack A. McClure
  • Publication number: 20030189088
    Abstract: A self-squaring corrugated container employs alignment markings on and adjacent to the manufacturing joint to allow quick visual inspection of placement and orientation of the manufacturing joint, and employs interlocking contoured peripheral edges on the major bottom flaps to allow consistent, quick, and easy formation of a container which is square, non-skewed to within small, strict tolerances. Both the alignment markings and contoured bottom flaps are die cut into the carton blank to insure uniform container alignment. Additional container features include employment of a hinged, partially detached top flap to accommodate use of the container to packaged bottles. Method steps are provided for forming the self-squaring container using the innovative features.
    Type: Application
    Filed: March 26, 2003
    Publication date: October 9, 2003
    Inventor: D. Scot Colby
  • Patent number: 6561413
    Abstract: A self-squaring corrugated container employs alignment markings on and adjacent to the manufacturing joint to allow quick visual inspection of placement and orientation of the manufacturing joint, and employs interlocking contoured peripheral edges on the major bottom flaps to allow consistent, quick, and easy formation of a container which is square, non-skewed to within small, strict tolerances. Both the alignment markings and contoured bottom flaps are die cut into the carton blank to insure uniform container alignment. Additional container features include employment of a hinged, partially detached top flap to accommodate use of the container to packaged bottles. Method steps are provided for forming the self-squaring container using the innovative features.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 13, 2003
    Assignee: Fuji Hunt Photographic Chemicals, Inc.
    Inventor: D. Scot Colby
  • Patent number: 6533164
    Abstract: A box blank for a pizza carton or other food carton that comprises one or more of the following features: (1) a structure that enables multiple blanks to be mated end-to-end for a material savings, (2) a rigidizing fold line structure for connecting a flap to a wall panel in a way that minimizes flap movement during box blank manuf acture, and (3) a frictionizing slot-forming slit that creates a tight-gripping cover flap receiving slot in the erected carton.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: March 18, 2003
    Inventor: John D. Correll
  • Patent number: 6488201
    Abstract: A corner join in a box is formed from a blank having a base section (2) and two side wall panels (4, 6) each joined thereto via a fold line (3, 5). A joining flap (15) is joined to one of the side wall panels (6) via a fold line (7). The fold line of the joining flap (15) essentially defines the corner, and the point of intersection of the three fold lines (3, 5, 7) is located in the base panel approximately at the corner. The side wall panels are joined to one another by placing the joining flap in contact with the second side wall panel (4) such that it overlaps the later in an overlap area, and fixing it to the side wall panel. A mastic-like filler (204; FA) is applied in or on the inside of the panel fold line (3) to which the fixing flap (15) is fixed at the location of the overlap area with the fixing flap (15).
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: December 3, 2002
    Assignee: Kappa Packaging Development Center B.V.
    Inventors: Peter Paul Van Eijndhoven, Richard Vos, Paulus Maria Van Gurp
  • Patent number: 6431435
    Abstract: A container assembly for bulk materials and a method and kit for assembling same are disclosed. A forming member having a plurality of sidewalls defines an internal cavity for receiving bulk materials. The sidewalls are arranged relative to one another and are locked into position so as to define a geometric volume of predetermined shape, by means of a locking assembly. The locking assembly can be integrally attached to or can be separable from the sidewalls, and can form a bottom of the container assembly. A tubular sleeve of continuous material is sized to snugly engage and overlie substantially the entire outer surface area of the sidewalls. The sleeve provides the containment strength, while the forming member provides structural shape and stability to the container assembly.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: August 13, 2002
    Assignee: RMC Jones LLC
    Inventors: Robert J. Jones, Michael R. Jones
  • Publication number: 20020014524
    Abstract: A new, novel and useful folding cup that fits into a cup holder. The cup is designed to fit into an array of cup holders such as the cup holders that are often built into modern motor vehicles in an arm rest or dash of such an automobile. The cup may be made from paperboard as a paperboard blank or any other suitable material that may be formed into a collapsible or expandable configuration wherein the bottom panels form a generally circular shape which may include a polygonal configuration. When the cup is in the folded condition, the cup is in a generally flat condition for economy of storage and shipping. By squeezing opposite edges of the flat structure the cup expands such that its bottom takes on its generally circular shape which may include a polygonal configuration and the top opens to accept whatever substance will be placed in the cup. This new, novel and useful folding cup that fits in a cup holder may be used as a container for french fries, chicken pieces or bread sticks, etc.
    Type: Application
    Filed: June 14, 2001
    Publication date: February 7, 2002
    Inventor: Thomas Willis
  • Patent number: 6176549
    Abstract: A foldable combination head-and-neck rest and tray having a pair of opposed cardboard headrests detachably formed on a foundation. Each headrest may be folded to create a pair of spaced-apart triangular-shaped cup-holding regions on opposite sides of a base portion. The base portions and cup holding regions of the pair of opposed headrest define a storage area on the foundation. The headrests may be detached and folded to form a pair of head rests, which may be positioned behind a user's neck with the triangular shaped cup-holding regions serving as supports on opposite sides of the user's head.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: January 23, 2001
    Assignee: Karding, Inc.
    Inventor: Louis Stanley Karash
  • Patent number: 6138904
    Abstract: A container comprising a body including a floor having two sides and two ends, a front side wall appended to the floor along one side of the floor, a rear side wall appended to the floor along a second side of the floor to lie opposite the front side wall, first and second end panel support flaps appended to the front side wall, third and fourth end panel support flaps appended to the rear side wall, right and left end flaps appended to the floor at each end respectively, and first and second tab receiving apertures extending through the floor adjacent the points of appending of the first and second end panel support flaps respectively, a left-side end panel separately formed from a material unconnected to the body and positioned to lie at one end of the floor between the front and rear side walls and formed to include a left-side pocket receiving the first and third end panel support flaps therein and having at least one stacking tab insertable into the first tab receiving aperture, and a right-side end pane
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: October 31, 2000
    Assignee: Inland Paperboard and Packaging Inc.
    Inventors: William J. Baird, Mike Goetz
  • Patent number: 6012581
    Abstract: A stacking display for merchandise including a first main panel comprised of a side panel, an upper edge panel, a lower edge panel, an upper floor panel, and a lower floor panel. A second main panel is provided that is comprised of a side panel, an upper edge panel, a lower edge panel, an upper floor panel, and a lower floor panel. A first small panel is provided that is comprised of a side panel having a first side foldably secured to a second side of the side panel of the first main panel. The first small panel includes an upper edge panel, a lower edge panel, an upper floor panel, and a lower floor panel. A second small panel is provided that is comprised of a side panel having a first side foldably secured to a second side of the side panel of the second main panel and a second side foldably secured to a first side of the side panel of the first main panel. The second small panel includes an upper edge panel, a lower edge panel, an upper floor panel, and a lower floor panel.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 11, 2000
    Inventor: Orazio Ray Galazzo
  • Patent number: 5979746
    Abstract: A container tray apparatus of the wraparound type is provided with reinforcing corner support members. The tray apparatus features internal minor flaps which have been split to create inner and outer flaps which can be folded and aligned on the inside and the outside of the corner areas of the tray apparatus to provide vertically extending corner support structures in addition to the corners formed by the end and side walls of the container tray apparatus, to provide enhanced stacking strength without requiring additional container material in the blank.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: November 9, 1999
    Assignee: Stone Container Corporation
    Inventors: Michael B. McLeod, Russell A. Leavitt, Elizabeth G. Wilson
  • Patent number: 5853120
    Abstract: A container tray apparatus of the wraparound type is provided with reinforcing corner support members. The tray apparatus features internal minor flaps which have been split to create inner and outer flaps which can be folded and aligned on the inside and the outside of the corner areas of the tray apparatus to provide vertically extending corner support structures in addition to the corners formed by the end and side walls of the container tray apparatus, to provide enhanced stacking strength without requiring additional container material in the blank.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: December 29, 1998
    Assignee: Stone Container Corporation
    Inventors: Michael B. McLeod, Russell A. Leavitt, Elizabeth G. Wilson
  • Patent number: 5794770
    Abstract: A package especially suited for shipping and storing cut paper and for providing rapid and easy access to the paper when the carton is opened. The package comprises a carton having a lid that may be removed and one side which may be pivoted down when the lid is removed to facilitate access to the contents of the carton for ease of unloading of paper from the carton and ease of reloading. A preferred construction employs a moisture vapor barrier in the walls of the carton to maintain the moisture content of the paper in the carton within acceptable limits when the package is subjected to adverse environmental conditions. In this form of the invention the need for individual ream wraps is eliminated, and the package may be opened and re-closed without detriment to the moisture vapor barrier.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: August 18, 1998
    Assignee: Union Camp Corporation
    Inventors: John Frederick Plomgren, Billy P. Cannon
  • Patent number: 5752651
    Abstract: An easily-folded E-flute corrugated carton for pizza, breadsticks, donuts, and the like. The carton is formed from a matable, alignable blank that reduces material consumption and cost. Key structural elements include (a) a front-edge-sloping cover with free side edges, (b) a rear wall with free ends, (c) parallel side walls each with a free rear end and free top edge, (d) inward-slope-creating corner flaps on front corners of the side walls, and (e) proportional bottom panel dimensions that allow the box to have acceptable load-carrying capacity, or box cavity volume.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: May 19, 1998
    Inventor: John D. Correll
  • Patent number: 5649663
    Abstract: A signle peece paperboard container is formed from a flat blank and includes side walls, end walls and a bottom. The end walls include a four ply the plys. Additional strength can be provided with an inclined corner post and an additional reinforcing panel extending along the wall, both of which are panels extending outwardly from an end panel when in blank form.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: July 22, 1997
    Assignee: Weyerhaeuser Company
    Inventor: Charles A. Pestow, Jr.
  • Patent number: 5639019
    Abstract: This invention relates to the improvement in an erectable tray which is formed from a single blank of material. Co-operating flaps and tabs at the corners of the erected sidewalls provide positive latching to complete the assembly of the tray. The blank may comprise, paperboard, corrugated cardboard, or a cor plast material.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: June 17, 1997
    Inventor: Edward C. Mayled
  • Patent number: 5588583
    Abstract: A paperboard multiple compartment tray-type container erectable from a blank, having a product dividing keel which provides structure as well as flexibility to the container. The container may have tapered or vertical sides. The container is formed from a die-cut and scored blank of paperboard or other sheet material, and includes locking devices which allow for mechanical forming of a multiple compartment tray without the need for adhesives.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: December 31, 1996
    Assignee: Kliklok Corporation
    Inventor: John W. Cargile, Jr.
  • Patent number: 5326018
    Abstract: A container having a bottom panel of quadrilateral configuration includes side walls foldably joined to side edges of the bottom panel, end walls foldably joined to end edges of the bottom panel, web structure at each corner of the container which is foldably joined to ends of adjacent side and end walls together with a locking tab foldably joined to each end edge of each end wall and defining a locking slit arranged to cooperate with a fastening slit for holding the web structure in collapsed condition and for holding the carton side and end walls in set up condition.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: July 5, 1994
    Assignee: The Mead Corporation
    Inventor: Gary W. Baugus
  • Patent number: 5256427
    Abstract: A blank for a paperboard container is provided on one of its surfaces with a layer of food-contacting polymethylpentene. The container formed from the blank, as by bending the blank along fold lines, requires one or more overlapped joints such as the usual manufacturer's joint. To overcome the non-stick properties of the polymethylpentene layer, the layer is flame treated so that it will adhere to a conventional water based, FDA approved adhesive and thereby make possible the formation of a seam or other overlapped joint or joints. Flame treatment is restricted to portions of the area of the polymethylpentene layer that are involved in the formation of the overlapped joint or joints.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: October 26, 1993
    Assignee: International Paper Company
    Inventors: James R. Quick, James E. Martin
  • Patent number: 5195644
    Abstract: A sealed, seamless box (10) that forms an RF-wave- or gas-tight enclosure is disclosed. The box of this invention includes a box body (12) formed of a single metal sheet (23) with a base panel (16) and upwardly extending side panels (18). The side panels are provided with tabs (20) that are thinner than the basic metal sheet. The tabs are seated in complementary cutouts (22) formed in the adjacent side panels. The cutouts have a depth equal to the tabs so that the side panels have a substantially uniform thickness equal to the thickness of the basic metal sheet. The tabs are secured in place by pins (30) formed integrally with the tabs that extend into openings (32) formed in the portions of the adjacent side panels that define the cutouts.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: March 23, 1993
    Assignee: Glenayre Electronics Ltd.
    Inventor: Hartmut Schmid
  • Patent number: 5090616
    Abstract: A modified glue flap of a folding carton blank for preventing glue from being squeezed out during the step of adhering the glue flap to the opposite end panel. The face of the glue flap engaged by the glue back-up wheel includes a protrusion near the trailing edge of the flap. Engagement of the protrusion by the back-up wheel causes the glue wheel to skip the trailing area of the flap. The absence of glue in this area prevents glue from being squeezed out when sealing pressure is subsequently applied to the glue flap and the opposite end panel. The protrusion may take the form of an embossed ridge, forming a channel on the opposite side of the protrusion for receiving any excess glue which would have been squeezed out.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: February 25, 1992
    Assignee: Riverwood Natural Resources Corporation
    Inventor: Raymond O. Bertsch
  • Patent number: 4978020
    Abstract: In a foldable box including a bottom plate integrally and bendably connected to side plates, both formed of a flexible material, the adjacent side plates are divided along their opposing side edges, one of said adjacent side plates being integrally and bendably connected at its opposing side edge with a gore plate formed of the same material, and a guide groove for slidably receiving said gore plate being formed in a wall of an opposing edge of said other side plate. Further, one of said gore plate and said wall of said opposing edge of said other side wall is provided with an associated hole therethrough in the thickness-wise direction, and the other is integrally provided with an engaging piece which is formed of the same material and is bendable in the thickness-wise direction. Said engaging piece is fitted in said associated hole, when said gore plate is fitted into the deepest position of said guide groove.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: December 18, 1990
    Inventor: Yukihiko Aono
  • Patent number: 4960238
    Abstract: A two piece container including a tray piece for holding an item and a cover piece adapted to telescopically fit over the tray is disclosed. Each container piece has a first wall and sidewalls which extend from and taper outwardly from the first wall. The sidewalls of the tray piece meet at corners which have cut-out sections to provide for inward flexibility of the tray sidewalls when the cover is fitted over the tray. A blank for forming the tray piece according to the present invention is also disclosed.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: October 2, 1990
    Assignee: MacMillan Bloedel Containers
    Inventor: Achim R. Lorenz
  • Patent number: 4867374
    Abstract: A collapsible, self-standing, liquid resistant, drinking cup formed from a unitary blank of uncoated paperboard and having a bottom wall member and a pair of side wall members that are interconnected at their side edges and that have certain lower edges joined to the bottom wall member and other lower edges disposed below the bottom wall member to support the erected cup on a horizontal surface.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: September 19, 1989
    Assignee: Container Corporation of America
    Inventors: Lowell C. Murray, Frederick Wyss
  • Patent number: 4844331
    Abstract: A self-locking corner structure for trays, cartons, lids, or the like has a generally plainer main panel and first and second side panels foldable along fold lines relative to the main panel to positions normal to each other and to the main panel to form a corner structure. One of the side panels has a flap portion at one end thereof foldable along a fold line to a position parallel and with one of its side surfaces adjacent to the other side panel, the flap portion having a sloping edge. The other of the side panels has a tab portion foldable along a sloping fold line generally parallel and adjacent to said sloping edge with the side panels positioned normal to the main panel and normal to each other and with the flap folded to a position parallel to the other side panel.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: July 4, 1989
    Assignee: Boise Cascade Corporation
    Inventor: Nevin L. Oldfather
  • Patent number: 4638941
    Abstract: Paperboard containers for shipping and display have been invented that utilize the various parts of the container. Columns of containers possess excellent stacking strength and stability because rigid relationships exist between the containers. The rigid relationships are derived from good connections between the parts of the containers and the contents within. Since only a part of the contents are needed to develop column strength and stability, the contents are displayed.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: January 27, 1987
    Assignee: Weyerhaeuser Company
    Inventor: Robert L. Watson
  • Patent number: 4621766
    Abstract: A one-piece corrugated fiberboard blank and the triple-end container assembled therefrom wherein the blank includes a rectangular bottom panel with a side panel hingedly attached to each of the two opposite sides thereof. Hingedly attached to the remaining two opposite sides of the bottom panel are first, exterior end panels, each having a hand-hold slot formed therein. Second, intermediate end panels sized in width to extend approximately half way across the first end panel in the assembled container are hingedly attached to the opposite ends of each side panel. Each intermediate end panel has a cutout complementary to the hand-hold slot in the first end panel and includes an extension hingedly attached thereto that folds back upon the intermediate end panel to form the third, innermost end panel.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: November 11, 1986
    Assignee: Inland Container Corporation
    Inventor: Jack A. McClure
  • Patent number: 4614297
    Abstract: This relates to tamper resistant cartons wherein the outermost closure flap is provided with a sealing flap of which at least a portion functions as a tuck flap and which tuck flap passes between a front panel and a terminal inner panel with a tuck flap portion being bonded on its inner surface to the outer surface of the inner terminal panel in an inaccessible position whereby the carton cannot be opened without rupturing the same to the extent that tampering would be apparent.
    Type: Grant
    Filed: May 22, 1984
    Date of Patent: September 30, 1986
    Assignee: Federal Paper Board Co., Inc.
    Inventors: Robert E. Davis, Patrick S. Maio, Lawrence J. Growney