With Seaming Patents (Class 413/74)
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Patent number: 8668421Abstract: 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: GrantFiled: April 22, 2010Date of Patent: March 11, 2014Assignee: Soudronic AGInventors: Willi Mueller, Daniel Dietrich
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Publication number: 20130048653Abstract: A method and device includes Fe producing cans from a directly imprinted metal band. The imprinted metal band can also be subdivided into partial webs prior to further processing by at least one longitudinal cut. An inner coating closed in a circumferential direction can be applied after forming laser seam at the metal band that has been formed into a tubular shape, i.e. prior to severing individual can shells.Type: ApplicationFiled: March 22, 2011Publication date: February 28, 2013Applicant: COSMOCAN TECHNOLOGY AGInventor: Werner Boltshauser
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Patent number: 8083122Abstract: Drum for a washer and a dryer including a cylindrical metal body part, reduced parts at opposite end parts of the body part, each having a diameter smaller than a diameter of the body part, and bent parts each having a folded edge of the reduced part, thereby providing a drum that can prevent occurrence of vibration and noise.Type: GrantFiled: April 21, 2011Date of Patent: December 27, 2011Assignee: LG Electronics Inc.Inventors: Soon Jo Lee, In Hee Han
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Patent number: 7584639Abstract: The aim of the invention is to produce can bodies (24?) comprising a can shell (24) and a closing element (31b, 32, 31a) that is fixed to one face of the can shell (24). Said aim is achieved by producing a tube (11) from a metal strip (1), optionally from directly adjacent sections (112), by means of a shaping step, at least one optional cutting step, and a continuous welding step, sections of said tube (11) being used as closed convex surfaces for cans. The sections are shaped by a shell-shaping device in such a way that can shells (24) are provided into which a closing element (31b, 32, 31a), especially a can bottom (31b), can be inserted. The longitudinal seam (11a, 124) can be produced inexpensively and at great precision essentially as a continuous seam in the welding step by means of simple installations.Type: GrantFiled: June 17, 2004Date of Patent: September 8, 2009Assignee: Crebocan AGInventor: Werner Boltshauser
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Patent number: 5296078Abstract: On the welding arm of a welding machine is mounted a coaxial application pipe with removable transport means and an application nozzle. Into this application pipe is fed a block-shaped hot-melt mass, in the direction opposite the advance direction of the sheet metal tube, guided in direction (V) of the application tube, melted in the area of a narrowing heater, passed through a supply tube to the application nozzle and applied or sprayed as a hot-melt strip to the inside of the longitudinal weld seam of sheet metal tubes.The application of a hot-melt strip is suitable in particular for the protection of the longitudinal seam of a tin-plated can shell.Type: GrantFiled: December 14, 1992Date of Patent: March 22, 1994Inventor: Ernst M. Frey
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Patent number: 5209625Abstract: A sheet-metal blank (10) can be moved through between first and second bending rolls (24, 25). Disposed behind the bending rolls (24, 25) in its direction of movement (12) is a deflecting member (28) by which the sheet-metal blank (10) can be deflected away from the first bending roll (24) and round the second bending roll (25) out of its original direction of movement (12). In order to catch the edge of the sheet-metal blank (10) which was leading in the original direction of movement (12), a catch ledge (29) is disposed at the side of the second bending roll (25) remote from the first bending roll (24) and at least substantially in the common plane of the axes of the two bending rolls (24, 25). The catch ledge (29) is a component of a guide rail (30) on which the rounded sheet-metal blank (10) is guided with its longitudinal edges lying close beside one another during a further axial movement.Type: GrantFiled: April 21, 1992Date of Patent: May 11, 1993Assignee: Elpatronic AGInventor: Othmar Stieger
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Patent number: 5151073Abstract: In the production of (cigarette) packs of the hinge-lid type, supplying a sufficient amount of material to the packaging machine presents a particular problem. In an advantageous solution, blanks (20) for producing the packs are severed from a continuous web of material (24) with punchings for delimiting the blanks (20) and further processed within the packaging machine. For the efficient production of (individual) blanks from the continuous web of material (24), the latter is fed to a blank station (26), in which preferably two respective blanks (20a, 20b) lying next to one another are severed by shearing from the following web of material (24) and from one another by means of severing rams (29). The two blanks (20a, 20b) so formed and individually separated are then fed to a folding turret (40), specifically appropriately with an intermediate conveyor in the form of a rotating blank turret (43) being interposed.Type: GrantFiled: June 20, 1991Date of Patent: September 29, 1992Assignee: Focke & Co. (GmbH & Co.)Inventor: Heinz Focke
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Patent number: 5120177Abstract: A sheet-metal blank (10) can be moved through between first and second bending rolls (24, 25). Disposed behind the bending rolls (24, 25) in its direction of movement (12) is a deflecting member (28) by which the sheet-metal blank (10) can be deflected away from the first bending roll (24) and round the second bending roll (25) out of its original direction of movement (12). In order to catch the edge of the sheet-metal blank (10) which was leading in the original direction of movement (12), a catch ledge (29) is disposed at the side of the second bending roll (25) remote from the first bending roll (24) and at least substantially in the common plane of the axes of the two bending rolls (24, 25). The catch ledge (29) is a component of a guide rail (30) on which the rounded sheet-metal blank (10) is guided with its longitudinal edges lying close beside one another during a further axial movement.Type: GrantFiled: July 25, 1990Date of Patent: June 9, 1992Assignee: Elpatronic AG.Inventor: Othmar Stieger
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Patent number: 5061141Abstract: A method and apparatus for producing can bodies, wherein blanks are laterally centered after removal from a magazine, are engaged in the center of their rear edge and are transported into a shaping station in which initially the center section of the blank is bent into its final shape. While doing this, a central force and friction lock is produced between a transporting means and the deformed blank to realize reliable guidance of the already partially bent blank. To further transport the blank, it is contacted at its rear edge in the already completely bent region by two lateral transporting devices and is advanced to a seam forming station, while the opposite longitudinal edges of the blank are brought to an adjoining relationship.Type: GrantFiled: March 29, 1989Date of Patent: October 29, 1991Assignee: Fried. Krupp Gesellschaft mit beschrankter HaftungInventors: Norbert Lentz, Harald Schmidt
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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: 4350862Abstract: An apparatus for transporting successive pieces to be separated from one another at respective predetermined spacings at a predetermined velocity, includes a rotary-to-linear movement conversion device, including a crank normally arranged to be driven at a prearranged angular velocity by a drive mechanism, and a clutch normally connected to, but disconnectable from the crank, and adapted to be connected to a drive device for periodically reducing the angular velocity to zero, so that the spacing of successive pieces may be accurately adjusted.Type: GrantFiled: July 3, 1980Date of Patent: September 21, 1982Assignee: Paul OpprechtInventor: Othmar Stieger