With Side Seaming Patents (Class 413/77)
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Publication number: 20100272542Abstract: In the field of manufacturing container bodies by means of resistance seam welding machines, at least a disturbance variable is collected, particularly errors in cutting the metal sheet. Because of this collection of disturbance variables, at least a control variable is automatically changed in order to compensate or to diminish the influence of the disturbance variable on the welding seam quality.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Applicant: Soudronic AGInventors: Willi Mueller, Daniel Dietrich
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Publication number: 20090200321Abstract: ABSTRACT A square can capable of securing high sealing performance even if a curvature radius of a seamed portion at a seamed corner portion is reduced, enabling a reduction in a countersink depth, reduced in size, having excellent sealing ability and storage efficiency and a method and an apparatus for double seaming the square can. A second seaming roll (55) is guided by a model cam for second seaming having a model cam surface for second seaming formed in such a shape that it is swelled from a model cam surface for first seaming outwards at a corner seamed portion (5). Accordingly, the seaming shape of the corner seamed portion (5) is formed in such a shape that the seaming width thereof at the center of the corner seamed portion is larger than the seaming width of a linear sealed portion (4) and is swelled outwards to absorb an increase in sheet thickness at the corner seamed portion.Type: ApplicationFiled: May 16, 2006Publication date: August 13, 2009Applicant: TOYO SEIKAN KAISHA, LTD.Inventors: Kei Oohori, Kiyotaka Yoshida, Sunao Morishita, Kanji Kuroda, Norifumi Yasuda, Kazuo Ando, Hisashi Katoh
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Patent number: 6769164Abstract: A method and an apparatus for making cans from three pieces of a sheet metal, namely a bottom part, a body part and a closure, the method and apparatus enabling cost efficient production of cans in small batch sizes. The apparatus has means for forming a tubular can body from a blank of sheet material without internally supporting the tubular form. The apparatus further has means for subsequently forming the tubular can body into a cross sectional shape without the use of a dedicated press tool, means for beading, curling and flanging the can body and means for attaching the bottom part and the closure to the can body.Type: GrantFiled: September 5, 2002Date of Patent: August 3, 2004Assignee: Glud & Marstrand A/SInventor: Esad Zubcevic
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Patent number: 6712575Abstract: A process for manufacturing a can with a polygonal cross-section and a can with a polygonal cross-section, the process comprising the steps of milling the cylindrical lateral wall of a tubular body (10), providing said wall with a plurality of circumferential ribs (20) which are continuous and axially spaced from each other and defined by a certain degree of radial plastic deformation of the respective circumferential region of the cylindrical lateral wall of the tubular body (10); expanding the formed tubular body (10), deforming it, in order to define longitudinal edges (12) in whose region the circumferential ribs (20) are eliminated; and double-seaming a bottom and an upper wall of the can to the tubular body (10). This process defines a can having any polygonal cross-section and circumferential ribs (20) on the lateral wall thereof, between the longitudinal edges (12).Type: GrantFiled: January 11, 2000Date of Patent: March 30, 2004Assignee: Brasilata S.A. Embalagens MetalicasInventors: Joao Vincente De Masi Tuma, Jose Augusto Oliveira Souza
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Patent number: 5997232Abstract: A method of making can bodies from sheet metal for manufacturing cans includes the steps of: feeding and superimposing two sheet metal strips rolled to finished thickness, joining the superimposed sheet metal strips by a plurality of connecting welded seams running continuously in the longitudinal direction of the strip, with a spacing from one another in the transverse direction of the strip corresponding to half the can body diameter, through continuous passage of the superimposed sheet metal strips through a welding device with a plurality of welding heads disposed with corresponding spacings from one another, cutting the sheet metal strips welded together along the middle of each connecting welded seam to create a plurality of flat tubes lying beside one another, optionally rolling up the flat tubes for intermediate storage and/or transport, unrolling the optionally rolled-up flat tubes, cutting the flat tubes transversely into flat tube sections whose length corresponds to approximately the can height, aType: GrantFiled: January 21, 1998Date of Patent: December 7, 1999Assignee: Rassellstein Hoesch GmbHInventor: Reiner Sauer
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Patent number: 4838473Abstract: Two similar machines are arranged on a preferably common floor frame can be individually laterally dislocated by suitable means from a normal operating position into a non-operative position. This arrangement allows an extremely compact arrangement of the machines for the normal operation and due to the simple lateral displacing a position of the machines is made possible which allows access to all parts of the machines. The other machine may, if desired, continue its operation without any interruption.Type: GrantFiled: December 18, 1987Date of Patent: June 13, 1989Assignee: Fael S.A.Inventors: Peter Schreiber, Michel Richner
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Patent number: 4805795Abstract: There is here provided butt-welded cans made of steel plates having a carbon concentration of 0.02 to 0.09% by weight, the aforesaid butt-welded cans being characterized in that a coating film for preventing the adhesion of melted metal particles is applied to at least the inner surface of the weld portion and its vicinity of each can, and a carbon concentration index I of the weld portion satisfies the formula (1)I=(Iw/Ic).times.10.sup.3 .ltoreq.15 (1)wherein Iw is a K.alpha. X ray intensity, of carbon in the weld portion, measured by the EPMA method, andIc is a K.alpha. X ray intensity, of carbon in graphite, measured by the EPMA method.Type: GrantFiled: December 28, 1987Date of Patent: February 21, 1989Assignee: Toyo Seikan Kaisha Ltd.Inventors: Nobuyuki Sato, Hiroshi Matsubayashi, Seishichi Kobayashi, Minoru Mitsuhashi, Kenji Matsuno, Kazuhisa Ishibashi
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Patent number: 4719329Abstract: A can body of surface treated steel plate, such as TFS, having adjacent longitudinally extending edges of tubular shaped member welded by irradiation of laser beam and provided with inside surface of welded seam having reliable paint retaining characteristic and free from projections, such as upset. For the purpose, welding is carried out such that inside and outside width of molten-solidified zone and structure changed zone will be maintained within a predetermined range and that metallic wire or elongated backing strip is located oppositely to lower surface of both edges being butt-welded.Type: GrantFiled: August 13, 1986Date of Patent: January 12, 1988Assignee: Toyo Seikan Kaisha, LimitedInventors: Kenji Matsuno, Hiroshi Matsubayashi, Kazuhisa Ishibashi, Kazuma Kuse, Nobuyuki Sato
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Patent number: 4712960Abstract: A can body is rolled from a sheet-metal blank (28) and has outer and inner longitudinal edges (12 and 14 respectively) which are welded to one another in an overlapping manner. Extending round the can body transversely to the longitudinal edges (12, 14) are two circumferential scorings (16) which define a tearing strip (18) laterally. The tearing strip (18) is extended by a tongue (20) which is welded onto the outer longitudinal edge (12) and which can be gripped by a key and rolled up. In a welding zone (42) which is adjacent to a starting scoring (30), the tearing strip (18) is stiffened by the welded-on tongue (20) in such a manner that it tears away from the can body reliably along the circumferential scorings (16) during the rolling up of the tongue (20).Type: GrantFiled: July 14, 1986Date of Patent: December 15, 1987Assignee: Elpatronic AGInventors: Paul Opprecht, Werner Urech, Jurg Opprecht
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Patent number: 4693658Abstract: The disclosure relates to a method of manufacturing a body formed of a shaped sheet metal blank having an opening tear strip terminating in a tongue. Overlapping edges of the blank are welded together and at the tear strip melting of a tin coating of the blank occurs so that at the tear strip the edges of the blank are linked by melted tin, or welding is completely interrupted to form a slot at the tear strip between the overlapping edges of the blank and the slot using a sealing material. Further, the disclosure relates to a metal blank for a can body having a tear strip formed there across by two weakening scores extending transversely to the edges of the blank and terminating in a tongue. The tear strip at one of the edges of the blank is provided with a covering and/or oxide layer which has a relatively low electrical conductivity.Type: GrantFiled: June 18, 1985Date of Patent: September 15, 1987Assignee: Thomassen & Drijver-Verblifa NVInventors: Johannes A. Glerum, Robert C. Klunder
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Patent number: 4685989Abstract: A process and an apparatus for producing a welded can body having an organic coated welded part are provided in which the exposed metal portion on the inside of the welded part of the can body and its vicinity is covered with a tape of an organic resin alone or a mixture of an organic resin with an inorganic material such as a pigment, a metal, etc. The resin tape is entirely supported by a mandrel to be disposed inside the can body, and pressed against the inside surface of the welded part and its vicinity. By heating the welded part of the can body, the resin tape is heated during pressing.Type: GrantFiled: September 24, 1985Date of Patent: August 11, 1987Assignee: Toyo Seikan Kaisha LimitedInventors: Kenji Matsuno, Hisakazu Yasumuro, Kazuo Taira, Tsuneo Imatani, Makoto Toyoshima