By Folding Over End Of Tube Patents (Class 493/157)
  • Patent number: 7686753
    Abstract: A cup making machine has a bottom finishing station provided with a mandrel for holding a sidewall blank and a bottom blank such that a flap portion of the sidewall blank is folded around a lip of the bottom blank. The bottom finishing station has a seam clamp engageable with overlapped edges of the sidewall blank to form a side seam, and a clamp ring selectively movable into engagement with the seam clamp. The clamp ring includes an annular wall forming a recess for receiving a rotatable tool which presses against the flap portion and the lip to form a bottom seal. Part of the seam clamp protrudes into the clamp ring, and part of the clamp ring protrudes into the seam clamp to form a bridge acting against the overlapped side seam at the top of the lip.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: March 30, 2010
    Assignee: Paper Machinery Corporation
    Inventor: Daryl R. Konzal
  • Patent number: 7329216
    Abstract: A system (1) for manufacturing containers (5) is designed around a supporting structure (2) with which all the stations (7, 18, 19, 21, 24, 25) and the devices (14, 15, 16, 17, 20, 22, 26) needed to produce the containers are associated. The system (1) is equipped with a feed station (7) supplying a forming material (9), a scoring station (18) by which crease lines (4a) are generated, and a cutting station (19), combining to prepare a succession of blanks (4). The system (1) also includes a prefolding station (21) where each blank (4) is bent initially along the creases lines (4a), a folding station (24) where the single blank (4) is fashioned to the shape of the container (5), and a sealing or welding station (26) at which the shape of the container (5) is fixed definitively.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: February 12, 2008
    Assignee: Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.p.A.
    Inventors: Fulvio Boldrini, Roberto Ghiotti, Stefano Cavallari
  • Patent number: 7200978
    Abstract: Process for producing packs made of thin cardboard with an outer wrapper made of shrink-wrap film. Folding tabs of the outer wrapper are connected to one another by full-surface-area heat sealing. The shrink-wrapping process for the outer wrapper may be initiated as a result. In order to ensure a correct form of the outer wrapper, the folding tabs, prior to the full-surface-area sealing operation, are connected to one another by a tack seal, with small, limited sealing surface areas, and are then sealed over the full surface area.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 10, 2007
    Assignee: Focke & Co. (GmbH & Co.)
    Inventors: Heinz Focke, Martin Stiller
  • Patent number: 6270451
    Abstract: A package manufacturing apparatus which can fold a portion-to-be-processed accurately along a folding line without misalignment between the folding line and an actual fold. The package manufacturing apparatus comprises a pair of turnable arms (61), folding-line applicators (68, 80), and two pairs of bending arms (62) and compression coil springs (74). The pair of turnable arms (61) are disposed opposite to each other such that they are swingable. The folding-line applicators (68, 80) nip a portion-to-be-processed of a package in process of forming, form a predetermined folding line in the portion-to-be-processed, and temporarily fold the portion-to-be-processed along the folding line, while each of the turnable arms (61) turns. Each pair of the bending arms (62) and the compression coil springs (74) is disposed between one of the folding-line applicators (68, 80) and the corresponding turnable arm (61) and elastically brings the folding-line applicator (68, 80) into contact with the portion-to-be-processed.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: August 7, 2001
    Assignee: Tetra Laval Holdings & Finance, S.A.
    Inventors: Magnus Palm, Roberto Paltrinieri
  • Patent number: 6109518
    Abstract: A heat-insulating cup comprises an inner sleeve and an outer sleeve. The latter is supported against an upper and a lower area of the inner sleeve. An annular space is located between the inner sleeve and the outer sleeve, which annular space is free of any additional elements. A joint bottom is arranged to the inner sleeve and the outer sleeve. In the upper area, the inner sleeve has a sudden widening, on top of which the outer sleeve is disposed.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: August 29, 2000
    Assignee: Michael Hoerauf Maschinenfabrik GmbH & Co. KG
    Inventors: Berthold Mueller, Gerhard Clauss
  • Patent number: 5518748
    Abstract: An edible container includes a truncated conically shaped side wall panel made of an edible dough having a pair of opposed side edges which are overlapped with one another, and arcuate upper and lower edges. A plurality of parabolic pieces are integral with the side wall panel and positioned in side-by-side relationship about its lower edge. The parabolic piece are inwardly folded relative to the lower edge thereof such that adjacent ones of the parabolic pieces at least partially overlap and adhere to one another. These at least partially overlapped and adhered adjacent parabolic pieces form a substantially flat bottom wall of the edible container. To form the container, a flat sheet of edible dough is wrapped around a forming mandrel so that the side wall panel is formed into a generally conical shape.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: May 21, 1996
    Inventor: Sadaharu Ito
  • Patent number: 5228273
    Abstract: A method of and apparatus for the production of packages each comprising a unit of product having opposite ends and a wrapper wrapped around the unit, the wrapper being wider than the length of the unit from end-to-end and initially extending outwardly beyond the ends of the unit, each end of the wrapper being folded over on said end of the product to form four closure flaps overlying said end, a first flap constituting a first side flap, a second flap constituting a first end flap, a third flap constituting a second end flap, and a fourth flap constituting a second side flap, the method of folding over the second end flap, wherein packages are fed forward one after another with the ends of the wrapper extending laterally outwardly at opposite sides of their path of travel, and the second end flaps are folded over at both ends of the package by flexible folding members which are brought into engagement with the trailing side of the trailing portion of each extending end of the wrapper and moved forward at hig
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: July 20, 1993
    Assignee: Hayssen Manufacturing Co.
    Inventor: Lloyd Kovacs
  • Patent number: 4907698
    Abstract: A carton blank and a method for folding and gluing it into a reclosable carton. Corner post flaps are releasably adhered to front end flaps to permit release of the corner post flaps from the front end flaps when the top of the top opening container is initially raised to provide access to the contents.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: March 13, 1990
    Assignee: James River Corporation
    Inventors: Kenneth F. Konrad, E. David Geng
  • Patent number: 4844327
    Abstract: A pack for fluid media, comprising a tube (1) forming side walls (2, 3) as well as a cover (5) and a base, which cover and base are fitted to end edges (4) of the tube (1) is provided. At least the side walls (2, 3) and the base are made of plastics-coated carrier material incorporating paper, cardboard or the like, and the base is formed by folded-over wall panels which are formed integrally with the tube (1), providing two mutually oppositely disposed double-walled triangular panels which are in communication with the interior of the pack. The cover (5) is also formed by folded-over wall panels (6) which are formed integrally with the tube (1) and edges (7) of the wall panels (6) are fluid-tightly connected together by injected bridges (8) of plastics material.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: July 4, 1989
    Assignee: Tetra Pak Finance & Trading S.A.
    Inventor: Hans Pausing
  • Patent number: 4834823
    Abstract: A fluid packaging means comprises tubular side walls and end walls disposed at the ends thereof, forming a bottom and a top, wherein the top comprises thermoplastic material without a carrier material, is injection moulded to the outer edge of the tube along that edge and has a pouring means, and the bottom is quadrangular and has triangular flaps which are folded over to lie against at least one adjacent panel. In order to provide such a packaging means with a particularly advantageous bottom, the invention proposes that at least two mutually oppositely disposed triangular flaps of the bottom are folded inwardly into the plane of the bottom or outwardly on to the side wall, about the lower edge between the bottom and the side wall, and fixed in that position.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: May 30, 1989
    Assignee: Tetra Pak Developement S.A.
    Inventor: Wilhelm Reil
  • Patent number: 4730766
    Abstract: This relates to a carton or cup having a conventional type of gable end which includes sealing flaps which are heat sealed or bonded to one another. The cup is particularly adapted to be closed by hand wherein control over the sealing flap positions is not possible as in the case of machine closed cups. Accordingly, the intermediate folded sealing flaps are so configurated wherein the folded ends thereof will be spaced so as to define therebetween a leak path. One of the front and rear sealing flaps will be provided with a bead of hot melt material which will be aligned with the leak path and when the sealing flaps are heat bonded together, the hot melt material will melt and fill the leak path.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: March 15, 1988
    Assignee: Continental Bondware, Inc.
    Inventor: Robert E. Fear
  • Patent number: 4636188
    Abstract: A process and apparatus are provided for manufacturing cardboard tubes with incorporated closure for packing or sending articles or documents and tubes obtained by implementing this process. The process comprises the continuous formation of a cardboard tube on the rotary mandrel of a spiralling machine and cutting the tube into tube elements discharged by the machine. This cut out is provided in the form of a sinusoid with provision of appropriate fold lines. Thus tube elements are obtained, without waste of material, whose ends have two opposite tongues which may be folded back, the adjacent ends of two successive tube elements being offset by 90.degree..
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: January 13, 1987
    Inventor: Jean-Marie Bihl
  • Patent number: 4621763
    Abstract: A paperboard container having a side wall formed from a single blank. A band or zone along one edge of the blank is provided with a plurality score lines each of whose edges are non-parallel to thereby yield a wedge score indentation. The blank is rolled to assume a round or rectangular cross-section tube, and the band is bent inwardly and sealed against a closure disc or panel. By virtue of the wedge shape of the scores, the resultant gathers in the band are substantially confined within the wedge scores to yield a more uniform seal between the inwardly bent band and the closure disc or panel.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: November 11, 1986
    Assignee: International Paper Company
    Inventor: Arne H. Brauner
  • Patent number: 4620665
    Abstract: A container defining an inner containment region and having means for positively sealing and opening at least one end to provide access to the containment region. An enclosure member is provided with at least one closure secured thereto for hinged movement adjacent to the opening, the closure being bi-directionally movable from a locked first position wherein the closure seals the container opening, through an intermediate position to a locked second position wherein the closure positively unseals the opening. The enclosure member resiliently deforms in coopertive interaction with the closure as the closure moves between the first and second positions, respectively, to aid further movement thereof from the intermediate position to either of the first locked closed positiion or the second locked open position. A method for manufacturing the container is also disclosed.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: November 4, 1986
    Assignee: Nathaniel H. Garfield
    Inventor: Thomas W. McSherry
  • Patent number: 4541220
    Abstract: A device for folding the edge of a wrapping material wound around a roll against the end of the roll. The device comprises an endless rotating means, such as a chain or a belt, at least one wheel member around which the rotating means is arranged to rotate. Pressing means pivotably attached to the endless rotating means for pressing said edge against the end of the roll when the rotating means is rotated from the circumference of the roll towards the center thereof, and driving means for driving the rotating means characterized in that the pressing means to the rotating means are such that the pressing means when in contact with the end of the roll pivot about an axis parallel with the axis of rotation of the roll (7) to an angle determined by the circumferential velocity of the roll (7) and the speed of movement of the rotating means (1).
    Type: Grant
    Filed: May 25, 1983
    Date of Patent: September 17, 1985
    Inventor: Seppo U. Rasimus
  • Patent number: 4300716
    Abstract: A one-piece T-shaped carton blank is disclosed which is utilized to form a rectangular cross-sectional container having its top and bottom end panels sealed in a plane substantially perpendicular to its sidewalls. The carton blank is formed having a definite dimensional relationship between its end panels and side panels to provide improved nesting of multiple carton blanks upon paperboard sheet stock in an alternating inverted side-by-side relationship. A pair of end sealing tabs extend along the top and bottom edges of the blank side panels. One of the end sealing tabs is separated from the top end panel and from a side sealing tap to prevent tearing and to permit the complete welding of the side sealing tab up onto the top end closure panel of the carton blank. This separation of the end sealing tab in combination with displacement of the hinge line of the top end closure panel downward provides a liquid-tight corner seal for the carton.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: November 17, 1981
    Assignee: Pneumatic Scale Corporation
    Inventor: Frederick R. Jennings