Patents Assigned to Cosma Engineering Europe AG
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Patent number: 9610821Abstract: An assembly (100) for a vehicle includes two longitudinal members (1, 2) and a crossmember (3) connected therebetween at a connection point (6) of the crossmember (3) to the longitudinal members (1, 2). The crossmember (3) is made predominantly of fiber composite material and the longitudinal members (1, 2) are made predominantly of a metal material. The connection point (6) between the crossmember (3) and the longitudinal member (1, 2) comprises an overlapping region (B), in which a connection segment (8) of the longitudinal member (1, 2), which is predominantly composed of metal material, overlaps at least in some segments with a part of the crossmember (3), which is predominantly composed of fiber composite material.Type: GrantFiled: April 28, 2014Date of Patent: April 4, 2017Assignee: Cosma Engineering Europe AGInventors: Alexander Zak, Rainer Lottes, Stephan Franschitz, Hannes Halbauer
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Patent number: 9393606Abstract: Through the invention, an ignition device for explosive forming of work pieces in a forming die, which has an ignition mechanism and an ignition tube, and in which the ignition tube guides the explosion ignited by the ignition mechanism into the work piece inserted in the forming die, is to be improved, in that it permits, in practice, an arrangement of the ignition mechanism and forming die that is easier to handle and geared toward the occurring explosion forces. This task is solved by an ignition device, in which a curved guide is provided between the ignition mechanism and the forming die.Type: GrantFiled: May 7, 2008Date of Patent: July 19, 2016Assignee: Cosma Engineering Europe AGInventors: Andreas Stranz, Alexander Zak, Philipp Stoeger
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Patent number: 9296030Abstract: With the invention, a method and device for explosive forming of work pieces, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, is to be improved, in that an ignition mechanism that is technically simple to handle, is produced with the shortest possible setup time, which permits the most precise possible ignition of the explosive with time-repeatable accuracy. This task is solved by a method and device, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, in which the explosive is ignited by means of induction.Type: GrantFiled: January 13, 2014Date of Patent: March 29, 2016Assignee: Cosma Engineering Europe AGInventors: Andreas Stranz, Alexander Zak
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Patent number: 9283908Abstract: A method of making a beam-box crash management system comprises forming a first shell (100a) from a first sheet metal blank by a hot forming process. The first shell has a high tensile strength beam portion (102a) and integrally formed there-with a first low yield strength crash box portion (104a) proximate a first end of the beam portion and second low yield strength crash box portion proximate a second end of the beam portion. The first shell also has an open face extending continuously along the beam portion and each of the first and second crash box portions (104a, 106a). A closing element (100b) is formed from a second sheet metal blank, and is fixedly secured adjacent to the open face of the first shell.Type: GrantFiled: June 15, 2014Date of Patent: March 15, 2016Assignee: Cosma Engineering Europe AGInventors: Michael Blumel, Christian Hengst, Ernst Lindtner
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Patent number: 8939743Abstract: With the invention, a device for fluid feed for explosive forming, which has a valve and an activating mechanism to activate the valve, is to be improved, so that the device permits both good filling of a die with fluid and good sealing during the explosive forming process in a technically simple design. This task is solved by a device for fluid feed for explosive forming that has a valve and an activating mechanism to activate the valve, in which the activating mechanism is arranged separate from the valve in an inactivated valve state.Type: GrantFiled: June 2, 2008Date of Patent: January 27, 2015Assignee: Cosma Engineering Europe AGInventors: Andreas Stranz, Alexander Zak
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Patent number: 8875553Abstract: The invention is intended to improve a tool arrangement and method for explosive forming of a workpiece by means of gas explosion, in which the workpiece is arranged in a intake area of a molding tool, wherein the intake area is at least partially filled with liquid and the explosion is triggered by means of ignition of an explosive gas mixture, to the effect that the tool arrangement and the method are suitable and simplified for mass production. This object is solved by means of a tool arrangement and a method for explosive forming of a workpiece by means of gas explosion, in which the workpiece is arranged in a intake area of a molding tool, wherein the intake area is at least partially filled with liquid and the explosion is triggered by means of ignition of an explosive gas mixture, in which the explosive gas mixture is provided at least partially above the surface of the liquid before the ignition.Type: GrantFiled: December 13, 2007Date of Patent: November 4, 2014Assignee: Cosma Engineering Europe AGInventors: Alexander Zak, Seetarama S. Kotagiri, Andreas Stranz, Philipp Stoeger
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Patent number: 8770639Abstract: A method of making a beam-box crash management system comprises forming a first shell (100a) from a fist sheet metal blank by a hot forming process. The first shell has a high tensile strength beam portion (102a) and integrally formed there-with a first low yield strength crash box portion (104a)proximate a first end of the beam portion and second low yield strength crash box portion proximate a second end of the beam portion. The first shell also has an open face extending continuously along the beam portion and each of the first and second crash box portions (104a, 106a). A closing element (100b) is formed from a second sheet metal blank, and is fixedly secured adjacent to the open face of the first shell.Type: GrantFiled: August 3, 2011Date of Patent: July 8, 2014Assignee: Cosma Engineering Europe AGInventors: Michael Blümel, Christian Hengst, Ernst Lindtner
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Patent number: 8650921Abstract: With the invention, a method and device for explosive forming of work pieces, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, is to be improved, in that an ignition mechanism that is technically simple to handle, is produced with the shortest possible setup time, which permits the most precise possible ignition of the explosive with time-repeatable accuracy. This task is solved by a method and device, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, in which the explosive is ignited by means of induction.Type: GrantFiled: August 6, 2007Date of Patent: February 18, 2014Assignee: Cosma Engineering Europe AGInventors: Andreas Stranz, Alexander Zak
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Publication number: 20130219980Abstract: An explosion forming apparatus (10) that preferably utilizes a shock wave (42) directed along a work piece (12) to progressively conform the work piece to a contour die cavity (44).Type: ApplicationFiled: April 3, 2013Publication date: August 29, 2013Applicant: COSMA ENGINEERING EUROPE AGInventor: COSMA ENGINEERING EUROPE AG
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Patent number: 8443641Abstract: An explosion forming apparatus (10) that preferably utilizes a shock wave (42) directed along a work piece (12) to progressively conform the work piece to a contour die cavity (44).Type: GrantFiled: April 30, 2009Date of Patent: May 21, 2013Assignee: Cosma Engineering Europe AGInventors: Alexander Zak, Seetarama S. Kotagiri, Frank A. Horton
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Patent number: 8322175Abstract: It shall be achieved by the invention that a workpiece for an explosion forming process, which can be inserted into a forming tool and which can be deformed from an initial shape by means of explosion forming, and the explosion forming method are improved such that a satisfactory quality of the workpiece with the desired wall thickness is achieved in a simple manner. This object is achieved by a workpiece and a respective explosion forming method in which the initial shape of the workpiece has at least in some portions a supply of material for the explosion forming process, which is pre-formed compared to adjoining portions or which is provided therewith.Type: GrantFiled: December 6, 2007Date of Patent: December 4, 2012Assignee: Cosma Engineering Europe AGInventors: Philipp Stoeger, Alexander Zak
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Patent number: 8250892Abstract: Through the invention, a closure device for explosive forming with a connection unit movable relative to the explosive forming die between a working position on the die and a rest position is to be configured, so that the explosive forming die can be closed in simple and reliable fashion and, at the same time, the explosion forces supported. This task is solved by a closure device, in which a wedge structure is guided to move on a static holding structure and is motion-coupled to the connection unit, the resulting movement of the connection unit being directed across the movement of the wedge structure.Type: GrantFiled: October 19, 2007Date of Patent: August 28, 2012Assignee: Cosma Engineering Europe AGInventors: Alexander Zak, Valentine Flitsch, Andreas Stranz
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Patent number: 8252210Abstract: With the invention, a method and a device for explosive forming of work pieces, in which at least one work piece is arranged in at least one die and there deformed by means of an explosive to be ignited, is to be improved, in that an ignition mechanism that is technically easy to handle is produced with the shortest possible setup times, which permits the most precise possible ignition of the explosive with time-repeatable accuracy. This task is solved by a method and device, in which at least one work piece is arranged in at least one die and deformed there by means of an explosive being ignited, in which the explosive is ignited by means of at least one energy beam.Type: GrantFiled: May 8, 2007Date of Patent: August 28, 2012Assignee: Cosma Engineering Europe AGInventors: Alexander Zak, Andreas Stranz
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Patent number: 8070197Abstract: The present invention relates to an energy absorption device (1) for a bumper arrangement of a vehicle, with a hollow longitudinal section (2) intended for deformation, a rolled-back region (3) adjoining the hollow longitudinal section, and an extension section (4) connected to the rolled-back region. In order to improve an energy absorption device of this type to the extent that obliquely acting accident forces can be absorbed with a high degree of efficiency in as simple a manner as possible, it is proposed, in an initial state prior to energy absorption, to orient the hollow longitudinal section (2) obliquely with respect to the axial direction of the extension section (4).Type: GrantFiled: November 27, 2007Date of Patent: December 6, 2011Assignee: Cosma Engineering Europe AGInventors: Toros Akgün, Michael Blümel