Extension Forms Hollow, Upstanding Corner Element Patents (Class 229/191)
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Publication number: 20030019920Abstract: A container made from corrugated paperboard has more than four sides and is constructed to resist distortion when force is applied to the ends or sides of the container, and also to resist crushing when containers are stacked on top of one another. In one embodiment, the container has six sides, with two side walls, two end walls, and two diagonally opposed diagonal corner panels and two diagonally opposed square corners. In another embodiment, the container has seven sides, with two side walls, two end walls, and three diagonal corner panels and one square corner. In a further embodiment, the container has eight sides, with two side walls, two end walls, and four diagonally opposed diagonal corner panels. In this embodiment, the diagonal corner panels are oriented so that they subtend an angle of from about 35° to about 40°, and preferably 38°, with respect to the longitudinal axis of the container.Type: ApplicationFiled: July 25, 2002Publication date: January 30, 2003Applicant: INTERNATIONAL PAPER COMPANYInventor: Benjamin Quaintance
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Patent number: 6488201Abstract: 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: GrantFiled: October 24, 2000Date of Patent: December 3, 2002Assignee: Kappa Packaging Development Center B.V.Inventors: Peter Paul Van Eijndhoven, Richard Vos, Paulus Maria Van Gurp
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Publication number: 20020166888Abstract: A container is formed from a plurality of panels that are folded to form two opposing sidewall panels and a bottom panel. An integral spacer is formed from flaps foldably joined to sidewall panels. The integral spacer provides a reduced inside length dimension relative to its corresponding outside length dimension.Type: ApplicationFiled: May 14, 2001Publication date: November 14, 2002Inventor: Thomas Tedeschi
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Patent number: 6474541Abstract: A foldable tote box is made of one-piece board of corrugated plastic. It comprises a rectangular bottom panel of two side edges and two end edges, a pair of side-wall panels, a pair of end wall panels, and two pairs of corner filler beam panels. Each side-wall panel has a folding edge integrally connected to the side edge of the bottom panel, and is folded along a first scored folding line at the folding edge, and has a cover panel connected to its top edge and two end edges defining a width of the side-wall panel and the height of the box. The end-wall panels are respectively integrally connected to and extended from the end edges of the bottom panel and folded along second scored folding lines. Each pair of corner filler beam panels is connected to the end edges of each end-wall panel. Each filler beam panels extends from the end edge of the end-wall panel and is folded along a third scored folding line to form a hollow support beam.Type: GrantFiled: July 30, 1999Date of Patent: November 5, 2002Inventor: Lawrence H. Y. Chu
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Patent number: 6471124Abstract: A container is formed from a plurality of panels that are folded to form two opposing sidewall panels and a bottom panel. An integral spacer is formed from flaps foldably joined to sidewall panels. The integral spacer provides a reduced inside length dimension relative to its corresponding outside length dimension.Type: GrantFiled: May 14, 2001Date of Patent: October 29, 2002Assignee: Kraft Foods Holdings, Inc.Inventor: Thomas Tedeschi, Jr.
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Publication number: 20020125307Abstract: A container (10) formed from a one-piece blank (12) including a bottom panel (14), first and second opposed side walls (16), (18), and first and second end walls (20), (22). A top lid panel (24) connects to the first side wall and a bottom lid panel (26) connects to the second side wall. A locking tab (46) is formed in the first side wall and includes a thumb notch (48) located within the tab. The top lid panel includes a pair of cover latches (28) located on the outer corners thereof. The bottom lid panel includes a pair of alignment tabs (40) located on the outer corners thereof. Each end wall includes a hand hole lock (60), a lock slot (64), and a recess (66) located along the end wall exterior edge. The lock slot is located between the recess and the hand hole lock. Each end wall further includes first and second reinforcing panel sub-assemblies (56), (58), each having an inner panel (70), (100), a middle panel (72), (102), and an outer panel (74), (104).Type: ApplicationFiled: May 14, 2002Publication date: September 12, 2002Applicant: Weyerhaeuser CompanyInventor: Jack A. McClure
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Patent number: 6402020Abstract: A container (10) formed from a one-piece blank (12) including a bottom panel (14), first and second opposed side walls (16), (18), and first and second end walls (20), (22). A top lid panel (24) connects to the first side wall and a bottom lid panel (26) connects to the second side wall. A locking tab (46) is formed in the first side wall and includes a thumb notch (48) located within the tab. The top lid panel includes a pair of cover latches (28) located on the outer corners thereof. The bottom lid panel includes a pair of alignment tabs (40) located on the outer corners thereof. Each end wall includes a hand hole lock (60), a lock slot (64), and a recess (66) located along the end wall exterior edge. The lock slot is located between the recess and the hand hole lock. Each end wall further includes first and second reinforcing panel sub-assemblies (56), (58), each having an inner panel (70), (100), a middle panel (72), (102), and an outer panel (74), (104).Type: GrantFiled: January 8, 2001Date of Patent: June 11, 2002Assignee: Weyerhaeuser CompanyInventor: Jack A. McClure
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Patent number: 6394742Abstract: Boxes each having opposing top and bottom walls adjoining opposing end walls and opposing side walls spaced apart a width adjoining the opposing top and bottom walls and the opposing end walls and having recessed end structure wherein a portion of the opposing side walls adjacent at least one of the opposing end walls that is narrower widthwise than the width are disposed diagonally inwardly and at least one of the top and bottom walls is tapered inwardly to the at least one of the opposing end walls that is narrower widthwise than the width, and arranging the boxes in an array of at least one row wherein each row contains the boxes disposed abreast one another with respective opposing end walls adjacent one another such that an opening is formed between adjacent opposing end walls.Type: GrantFiled: April 28, 2000Date of Patent: May 28, 2002Assignee: The Mead CorporationInventor: Craig W. Buscema
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Patent number: 6378764Abstract: A tray for transporting products and a method for its manufacture, the tray being formed from a sheet of cardboard which is die cut and includes fold lines defining the bottom and sides of the tray. The tray includes a hollow corner column (5) into which a reinforcing element (6) is inserted.Type: GrantFiled: April 6, 2000Date of Patent: April 30, 2002Assignee: Videcart, S.A.Inventor: Pere Teixidor Casanovas
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Patent number: 6296178Abstract: A single-piece containerboard blank (10) is provided having hingedly-connected first and second side walls (26), (34) in which the second side wall (26) is smaller in length than the first side wall (34). The second side walls each include an outer abutment edge (42). The first side walls include first and second interior end walls (50), (52). Each second interior end wall (52) includes a hypotenuse panel (62) with an inwardly-oriented edge (66). As assembled, the blank (10) forms a container having opposed multi-ply side panels, opposed end panels, and a bottom panel. The hypotenuse panels (62) are oriented in an upright manner and ultimately positioned so that their inwardly-oriented edges (66) push against the first side wall and preferably also against the abutment edges (42) of the second side wall (34). The hypotenuse panels (62) offer stacking strength and reinforcement to the container.Type: GrantFiled: August 9, 2000Date of Patent: October 2, 2001Assignee: Weyerhaeuser CompanyInventor: David J. McKenna, Sr.
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Publication number: 20010017315Abstract: A box made substantially of paperboard, the box having one or more support formations attached to an interior surface of the box and projecting into the interior of the box, wherein the one or more support formations act to (a) locate within the box an object having a shape or size different from that of the box, and (b) brace the box against damage when the object is located within the box by the support formations.Type: ApplicationFiled: January 12, 2001Publication date: August 30, 2001Inventor: Bassim Baroudi
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Patent number: 6186393Abstract: The invention refers to an economical carton box for packing and transporting of products that can consist of many pieces of corrugated board or solid paper so as in each case and for each side separately the arrangment of the paper's waves is to be indicated. For such an economical carton box the extensions (F1, F2, . . . , F6) of sides (A1, A2, A3) turn internally by 90 degrees so as to be glued with the outside part of the small sides (A4, A5) accordingly and the extensions (F7, F8) to base A2. The extensions (N1, N2) rotate and glue externally to sides (A4 and A5) while columns (K1, K2, K3, K4) are formed at the small sides. When the height of the sides (A1, A3) is equal to the height of the carton box then the extensions (N1, N2) constitute the covering of the carton box. The projections (P1, P2, P3, P4) of sides (A4 and A5) fit into slots (E1, E2, E3, E4) accordingly during the piling of the boxes.Type: GrantFiled: November 12, 1998Date of Patent: February 13, 2001Inventor: Ilias Tsamourgelis
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Patent number: 6131805Abstract: A shipping container, e.g., tray, formed-up from a unitary blank of sheet material improves upon known triangular cornerpost-type containers by providing reinforcing layers formed from a fold-over flap attached to an upper edge of a wall panel having post-forming corner panels at its lateral ends. The fold-over flap is laid-up against, and is secured to, a diagonal panel of the triangular post structures formed at each container corner, as well as adjacent portions of the corner-forming walls. Tabs formed by a hinged connection of the wall panel and fold-over panel are aligned with notches formed in lower edges of the walls, allowing for interengagement of multiple trays in a stacked configuration. The construction results in superior stacking strength and improved stacking stability, thereby facilitating material handling, shipping and display.Type: GrantFiled: October 22, 1999Date of Patent: October 17, 2000Assignee: Georgia-Pacific CorporationInventor: Wayne P. Gasior
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Patent number: 5996885Abstract: A foldable tote box is formed by a one-pierce die-cut and scored board of corrugated material, especially corrugated plastic materials, that includes novel locking system so as to facilitate quick assembly of the box. The board includes a generally rectangular bottom panel, two pairs of side-wall panels to form the side-wall of the tote box, and ore or two pairs of filler beam panels connected to one of the pairs or both pairs of side-wall panels. Each side-wall panel having the filler beam panels includes a side wall section and a flap section, on which two insert locking tabs are formed at appropriate locations to be associated with corresponding fastening tabs located on the filler beam panels. Each of the filler beam panels can be folded to form a hollow support beam.Type: GrantFiled: September 9, 1998Date of Patent: December 7, 1999Assignee: Merryland Products, Inc.Inventor: Lawrence H. Y. Chu
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Patent number: 5992735Abstract: The invention relates to a broadsheet from cardboard for constructing a stackable box with corner supports, which box consists in a usual way of a bottom and four side walls, characterized in that two opposite side walls of the box to be made from the broadsheet show extended parts which are folded according to parallel lines and this in such a manner that some sides of these parts which will form in a later phase a corner support are adhered by glue to an adjacent side wall while the other sides of the same parts or a portion thereof are provided with a fasteners which co-operates when constructing the box, i.e. amongst others when forming the corner support, with an analogous fasteners provided on the other adjacent side wall.Type: GrantFiled: June 11, 1998Date of Patent: November 30, 1999Assignee: Veerstroom B.V.Inventor: Willeke Oosterbaan
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Patent number: 5860590Abstract: A container formed from a blank to define indexing longer walls having an inward incline but a double thickness provided by a foldline at the tops thereof so that the indexing projections are receivable within corresponding openings in the base of a corresponding container. Each part of the indexing walls has an extension such that at each end thereof one extension attaches to the outside of an end wall while the other attaches to the inside of an end wall with preferably that attaching to the inside of an end wall through a pair of parallel vertical folds providing a support at least in part for the weight of a stacked container.Type: GrantFiled: December 29, 1997Date of Patent: January 19, 1999Assignee: Carter Holt Harvey LimitedInventors: Gregory Thomas Blomfield, Robert William Coe, Trevor Grant Burgess
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Patent number: 5850965Abstract: A reinforced container includes four exterior panels and four supports. Three of the supports are integrally connected to two exterior panels that are positioned to form an edge of the container. The supports can be secured to the interior sides of the exterior panels. The reinforced container can be made from folding a single sheet of corrugated fiberboard.Type: GrantFiled: June 17, 1997Date of Patent: December 22, 1998Assignee: Dell USA, L.P.Inventors: Derek W. Boyls, John W. Bridges
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Patent number: 5697548Abstract: A bottom wall is formed from a plurality of bottom panels having unjoined adjacent edges. Side walls are formed from a plurality of side panels. Each side panel is foldably joined along a bottom edge to one of the bottom wall panels. Reinforcing posts are formed in the side walls by sets of reinforcing post panels. Each set of reinforcing post panels has a plurality of post panels foldably joining one another and foldably joined between side wall panels adjacent the unjoined edges of the bottom panels. An end closure is formed at each end of the carton by end panels foldably joined to end edges of the bottom and side wall panels and secured in face-to-face overlapping relationship.Type: GrantFiled: April 8, 1996Date of Patent: December 16, 1997Assignee: The Mead CorporationInventor: H. Lee Halsell, II
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Patent number: 5673848Abstract: The present invention provides a improved corrugated cardboard box formed from a single pre-cut and pre-scored blank. The box can better support vertical and lateral loads, such as are present when many like boxes are stacked in a column, making the box ideal for packaging and shipping easily damaged produce such as tomatoes. The box is typical in that it includes a bottom panel, two side panels, two top panels, and two end panels. The improvement resides in the provision of a corner support post at each corner of the box. Each corner support post includes a vertically extending corner support panel, which is attached to the side edge of the end panel, and an interior bracing panel which extends from the corner support panel to the inner surface of the end panel. In a preferred embodiment, the post also includes a connecting panel disposed between the corner support panel and the interior bracing panel.Type: GrantFiled: July 16, 1996Date of Patent: October 7, 1997Inventor: Juan Ramon Garza
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Patent number: 5588585Abstract: A carton blank from a one-piece blank includes a floor and sidewalls, with corner posts at the corners of the carton. The corner posts include end panels located beside adjacent sidewalls and a plurality of intermediate panels folded to form a Z-shape cross-section.Type: GrantFiled: March 15, 1996Date of Patent: December 31, 1996Assignee: Inland Container CorporationInventor: Jack A. McClure
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Patent number: 5562227Abstract: To provide a packaging container with anti-bulging function comprising a bag inside a box in which an inner bag is set in an octangular inner cylinder integrated with a quadrangular outer casing. The bag inside the box provides an anti-bulging function to prevent the outer casing from bulging, by developing a counter bulge in the inner bag acting on an oblique surface of the octangular inner cylinder to pull a side wall of the quadrangular outer casing inward.Type: GrantFiled: July 31, 1995Date of Patent: October 8, 1996Assignees: Honshu Paper Co., Ltd., Kikkoman CorporationInventors: Taihei Takezawa, Hyozaemon Takanashi, Nobuo Sugimaru, Shoichi Kawase, Yutaka Watanabe, Mitsuo Takayanagi, Kinzaburo Akita
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Patent number: 5549242Abstract: A stackable container has corners which have ridges that extend above the sidewall. These ridges mate with slots in the bottom walls of similar containers when the containers are stacked. Corner flaps which connect adjacent sidewalls form triangular posts that serve to support the weight of containers stacked on it. The section of the corner flap that extends along the adjacent sidewalls also have ridges that extend above the sidewall but the section that extends diagonally across the corner has a height that is equal to the height of the sidewalls. This allows this section to rest against the bottom wall of a container stacked on it instead of mating with a slot.Type: GrantFiled: March 7, 1994Date of Patent: August 27, 1996Assignee: Iberoamericana Del Embalaje S.A.Inventor: D. Emilio M. Gimeno
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Patent number: 5544806Abstract: A box for carrying and protecting a painting includes a primary panel and side and end panels connected to the primary panel and disposed orthogonally with respect to the primary panel. The panels are locked together to define a box interior for holding a painting. Pairs of engagement members located at the corners of the box project into the box interior and maintain the painting spaced from the primary panel and out of engagement with the primary panel. The box is formed from a unitary blank.Type: GrantFiled: August 22, 1995Date of Patent: August 13, 1996Inventors: Thomas J. Anderson, Hugh C. Walker
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Patent number: 5535941Abstract: The present invention provides a improved corrugated cardboard box formed from a single pre-cut and pre-scored blank. The box can better support vertical and lateral loads, such as are present when many like boxes are stacked in a column, making the box ideal for packaging and shipping easily damaged produce such as tomatoes. The box is typical in that it includes a bottom panel, two side panels, two top panels, and two end panels. The improvement resides in the provision of a corner support post at each corner of the box. Each corner support post includes a vertically extending corner support panel, which is attached to the side edge of the end panel, and an interior bracing panel which extends from the corner support panel to the inner surface of the end panel. In a preferred embodiment, the post also includes a connecting panel disposed between the corner support panel and the interior bracing panel.Type: GrantFiled: March 27, 1995Date of Patent: July 16, 1996Assignee: Smurfit Carton Y Papel de MexicoInventor: Juan R. Garza
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Patent number: 5487504Abstract: A paperboard tray is provided with sidewalls forming a T-shaped beam. Optional corner posts may be provided to further increase the stacking strength of the tray. An optional cover may also be employed to provide a sealed container assembly.Type: GrantFiled: July 25, 1994Date of Patent: January 30, 1996Assignee: Inland Container CorporationInventor: William J. Baird
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Patent number: 5487505Abstract: An arrangement in a box is disclosed, the box being, in the initial position, in the form of a sheet-like blank having a bottom (2), first and second sidewalls (4, 6) which are connected to the bottom (2) via fold lines (8, 10) and are substantially parallel panels which are connected to one of the sidewalls (4, 6). The arrangement is characterized in that a flap (32) is formed at a second panel (20) which, via a second fold line (18), is connected to a first, inner panel (16) which is connected to one of the sidewalls (4, 6) via an inner fold line (14), and that a slot (34) is formed in one sidewall (6) connected to the inner panel (16), the slot engaging the flap (32) when the box is erected.Type: GrantFiled: December 7, 1994Date of Patent: January 30, 1996Assignee: Bjorkebo Gaard ABInventor: Bo-Arne Nilsson
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Patent number: 5458283Abstract: A ventilated container for storing fresh produce is formed from a unitary continuous blank. The ventilated container includes a bottom wall, first and second opposing side walls, and first and second opposing end walls. The first and second side walls and the first and second end walls intersect with one another to form four inside corners of the container. The container forms a plurality of vents to permit air to flow through the container. Each of the first and second end walls is formed from an inner panel and an outer panel hingedly connected to each other along a substantially rigid upper ledge. The container includes four polygonal corner posts disposed adjacent the respective four inside corners of the container and extending from the bottom wall to a height of the upper ends of the respective corners.Type: GrantFiled: April 24, 1995Date of Patent: October 17, 1995Assignee: Packaging Corporation of AmericaInventors: James D. Southwell, Victor R. Rioux, G. Robert Tidball, Charles C. Pierce
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Patent number: 5452848Abstract: A stackable container formed from a sheet of material that is die-cut, for example, and folded to form an open box having a bottom, side walls, and end walls having extensions. Crests formed on the upper edges of the end walls and the extensions provide double-thickness crests when the extensions are folded back onto the inside of the end walls. The double-thickness crests fit into corresponding holes made in the lower edges of the end walls of the open box, such that another similar box can be set securely on the upper edges of the box. Thus, a plurality of boxes can be superimposed, fitting one on top of another, to form stable stacks. The extensions are divided vertically into a first section, a central section and a final section. The extensions are folded inside the box to form prism-shaped reinforcements, the central sections being folded at an oblique angle across the corners of the box.Type: GrantFiled: March 16, 1994Date of Patent: September 26, 1995Assignee: Iberoamericana Del Embalaje, S.A.Inventor: D. Emilio Mur Gimeno
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Patent number: 5431335Abstract: A shallow open top container intended for the packing of perishable products, such as fresh fruit, is constructed from a board of stampable material and includes a rectangular bottom, long side panels or cheeks, and short end panels. The latter are considerably greater in height than are the long side panels. In the upper part of each corner of the container there are small transverse partitions arranged to form corresponding supports on which another container rests in an adjoining plane above the plane of the first mentioned container. The transverse partitions also provide angular positioning ridges that extend slightly above the end panels. Angular positioning ridges at the corners of a lower container extend upward into lower edge corner cutouts of an upper container that is stacked immediately above the lower container.Type: GrantFiled: March 7, 1994Date of Patent: July 11, 1995Assignee: Iberoamericana Del Embalaje S.A.Inventor: D. Emilio M. Gimeno
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Patent number: 5415345Abstract: A box with integral corner reinforcements and a method of making the same is described. The method comprises folding the box from a prescored sheet of material so as to leave a flap adjacent each corner. The flap is prescored and is pushed towards its hinged corner whereby it buckles into a curved shape. The end of the flap is secured by gluing or stapling so as to stabilize the curved shape. The curved shape considerably increases the stiffness and crush resistance of the whole box and may allow may more boxes to be stacked.Type: GrantFiled: May 13, 1993Date of Patent: May 16, 1995Assignee: FRA.MO. Snc Di Franca Riva & CInventor: Robin MacKinnon
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Patent number: 5372299Abstract: A combined shipping and display box is provided which is formed from a one-piece blank of box-board material configured such that, when erected, the box will include bottom, front and rear walls as well as an opposed pair of side walls. The side walls are each formed from respective side panels having a central sub-panel and a pair of divider sub-panels extending in opposite directions from the central sub-panel. These divider sub-panels are inwardly foldable onto their respective central sub-panel along predetermined fold lines so as to not only be positioned in adjacent contact with the central sub-panel, but also to establish protruding interior dividers for the shipping/display box. When erected, therefore, the terminal edges of each respective pair of divider sub-panels will abut one another such that each of the interior dividers is paired with a similar interior divider associated with the opposite side wall.Type: GrantFiled: October 12, 1993Date of Patent: December 13, 1994Assignee: BASF CorporationInventors: Eric Edgerton, Jr., John D. Jannone, Kenneth Whelan, William C. Bauer
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Patent number: 5370303Abstract: A one piece container, particularly adapted for the packaging of grapes and fashioned of corrugated paperboard, exhibits three thicknesses of paperboard over the major extent of its end walls. Each of two top closure panels is provided with latching tongues for insertion into slots in respective upstanding ears at each end wall. The upstanding ears are adapted to fit in complementary recesses in the bottom of a similar container stacked thereon. Vertically extending channels are located at respective corners of the container for stacking strength.Type: GrantFiled: February 25, 1994Date of Patent: December 6, 1994Assignee: International Paper Co.Inventor: Stanley L. Fry
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Patent number: 5333777Abstract: A container of cardboard or other relatively stiff material has a square or rectangular bottom wall, two parallel sidewalls and two end walls at least one of which is shorter than the sidewalls. This renders it possible to gain access to the confined goods, such as one or more stacks of paper sheets or the like, even if the goods completely fill the container. The end walls are adhesively secured or stapled to flaps which are integral with the respective ends of the sidewalls and are bent toward each other to define a gap above the corresponding relatively short end wall or end walls. The distance between each pair of confronting flaps can exceed half the distance of the sidewalls from each other.Type: GrantFiled: June 19, 1992Date of Patent: August 2, 1994Inventor: Oscar Roth
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Patent number: 5330094Abstract: A collapsible, stackable, display tray with single-ply side walls and multi-ply end walls that each include a pair of outer flaps, an outer panel, a pair of inner flaps, an inner panel, and a pair of hollow corner posts connected to the inner panel and positioned between the inner flaps panel and the inner panel.Type: GrantFiled: December 16, 1993Date of Patent: July 19, 1994Assignee: Jefferson Smurfit CorporationInventor: Noel J. Mertz
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Patent number: 5294044Abstract: A fiberboard box formed from a blank (20), which includes side panels (24 and 28), also top and bottom flaps (40, 42, 44 and 46), with a pair of outer end panels (26 and 30). Mating inner overlapped end panels (48 and 50) produce a double fiberboard thickness on each end. Each corner contains a doubled vertical reinforcement (64) at an equal bisecting angle integrally formed from each outer end panel and adjacent side panel. A diagonal corner reinforcement (68) is formed from each overlap end panel and is angularly bent to span between the end and side panels and is also contiguous with the doubled vertical reinforcement. The diagonal and doubled reinforcement combination in each corner is attached together with glue where they touch each other, creating a rigid weight bearing corner permitting other like boxes to be stacked on top. Optionally, a number of stacking tabs (52) are formed in the end panels with mating recesses (54) maintaining alignment when the completed boxes are stacked.Type: GrantFiled: March 22, 1993Date of Patent: March 15, 1994Inventor: Danny W. Clark
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Patent number: 5289970Abstract: The corrugated container is provided with internal reinforcing panels to form corners of increased thickness, thereby augmenting the stacking strength of the container. Locking tabs are formed in either vertical endwalls or in horizontal lid panels of the container and are interlocked with the reinforcing panels being folded between overlapping reinforcing panels. Locking slots are provided in the carton sidewalls and locking flaps have ear portions engagable with edges of the locking slots, to hold the lid panels in a closed position.Type: GrantFiled: October 2, 1992Date of Patent: March 1, 1994Assignee: Inland Container CorporationInventor: Jack A. McClure
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Patent number: 5285956Abstract: A paperboard container is provided with a plurality of internal vertically extending triangular-shaped columns and on the top edges of the columns there is a design feature which allows the edges to be relieved thereby forming inclined edges to reduce package tearing or product damage. The inclined edge can be provided either when the container is erected by a machine or later by hand depending upon the selected design.Type: GrantFiled: March 31, 1993Date of Patent: February 15, 1994Assignees: Weyerhaeuser Company, IBP, Inc.Inventor: Wallace I. Piepho
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Patent number: 5261594Abstract: A paperboard container is provided with a plurality of internal vertically extending triangular-shaped columns and on the top edges of the columns there is a design feature which allows the edges to be relieved thereby forming inclined edges to reduce package tearing or product damage. The inclined edge can be provided either when the container is erected by a machine or later by hand depending upon the selected design.Type: GrantFiled: January 3, 1992Date of Patent: November 16, 1993Inventors: James M. Brown, Wallace I. Piepho
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Patent number: 5125568Abstract: A stackable tray is formed from a single blank of cut and scored corrugated paperboard or the like with a substantially rectangular bottom panel, cut away side walls reinforced with extra panels that extend over the bottom panel and reinforced end panels that are adhered to the end walls. The reinforced end panels include score lines on alternative sides of the blank which automatically produce integral corner posts for the tray when the panels are folded and adhered to the end walls. The reinforcing panels for the end walls also include locking tabs which cooperate with locking slots in the tray bottom panels when a series of trays are stacked one upon the other.Type: GrantFiled: January 16, 1992Date of Patent: June 30, 1992Assignee: Westvaco CorporationInventor: William C. Bauer
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Patent number: 5028000Abstract: The invention disclosed herein relates to a packaging try with a thermoformed inner lining. The packaging tray includes, internally, in each corner, a corner panel which is inclined toward the bottom of the tray such that it approaches the center of the bottom. The corner panel is inclined at an obtuse angle with respect to the bottom and to the walls which define the corner. Also disclosed is a unitary packaging tray blank from which the packaging tray is constructed.Type: GrantFiled: March 8, 1990Date of Patent: July 2, 1991Assignee: Societe Contentale du Carton Ondule SOCARInventors: Roland Chabot, Philippe Dropsy
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Patent number: 5002221Abstract: A rectangular box for transporting multiple pizza pies, with one or more pairs of short horizontal cuts in each corner, such that they form shelf supports when poked into the box. The shelf supports are configured such that they provide ventilation for the pizzas, and allow the shelves and pizzas to be easily removed from the box. The box, a cardboard version of it, and the method for making it are all disclosed.In addition, a particular type of box, with a fold-over top with flaps on three sides of the box, which fit into the box as the top folds down, and a separator stand in the center of each pizza pie for support of the pie above, are disclosed.Type: GrantFiled: May 10, 1989Date of Patent: March 26, 1991Inventor: Philip J. Ragan
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Patent number: 4948033Abstract: A multi-piece foldable container including a corrugated body blank and a pair of corrugated liner blanks. Support columns are found in the liner blanks at positions along the sides of the container while multiple layers of the corrugated fibreboard are provided at the ends of the container to reduce tear out at the hand holes.Type: GrantFiled: November 10, 1986Date of Patent: August 14, 1990Assignee: The Mead CorporationInventors: Hampton L. Halsell, II, William W. Galloway, David H. Shults
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Patent number: 4838418Abstract: A container for hazardous waste is formed of corrugated cardboard that is coated on both sides with fiberglass. The carboard includes flaps that are bent prior to being coated to form triangular braces that extend along the edges of the container. The container is extremely durable, impervious to a wide range of chemicals, and economical to manufacture. In one embodiment, suitable for use where greater protection is required, a smaller container made by the same technique is lowered into a larger container of the same type, and the space between the inner and outer containers is filled with a liquid foam plastic. When the foam plastic has cured, it serves to prevent movement of the inner container with respect to the outer container, to provide thermal insulation, and to protect against shock and breakage of the inner container.Type: GrantFiled: June 10, 1988Date of Patent: June 13, 1989Assignee: Teixeira Farms, Inc.Inventor: Norman J. Teixeira
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Patent number: 4799620Abstract: A stackable cardboard box construction comprises a sheet of corrugated cardboard cut, grooved and folded to form a bottom panel, opposite side walls and opposite lengthwise walls united with the bottom by grooved fold lines. At each corner, the side walls and lengthwise walls have upwardly projecting tabs and are folded to form a hollow triangular column having double thickness walls and projecting up above the upper edges of the side walls and lengthwise walls. A triangular plastic cap fitting over the projecting upper end of each of the columns has a stop plane engaging the top of the respective column, a table spaced above the stop plane by reinforcing ribs and a frustoconical stud which projects up from the table and is received in an opening in the bottom of a next higher box in a stack to prevent side slipping.Type: GrantFiled: December 4, 1986Date of Patent: January 24, 1989Assignee: Daniel Aguilo Panisello S.A.Inventor: Antonio R. Vilella
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Patent number: 4613045Abstract: A paperboard container for shipping has been invented that utilizes the various parts of the container to provide strength and stability. Columns of ten or more containers possess excellent stacking strength and stability because the invention provides rigid relationships between containers. The rigid relationships are derived from good connections between the parts of the containers.Type: GrantFiled: August 29, 1985Date of Patent: September 23, 1986Assignee: Weyerhaeuser CompanyInventor: Robert L. Watson