Patents by Inventor Jens Hamann
Jens Hamann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7766300Abstract: The invention relates to a machine, whereby at least one machine bed (2) of the machine is linked to a floor (1), by means of at least one support element (9a), said support element (9a) being pivotally mounted in relation to the machine bed (2) and the floor (1). The invention also relates to a support element (9a), for bearing a machine, whereby said support element (9a) comprises means (10a), by which the support element is pivotally linked to the machine and means (11a), by which said element is pivotally linked to the floor (1). The invention thus avoids horizontal movements of the machine bed.Type: GrantFiled: April 20, 2005Date of Patent: August 3, 2010Assignee: Siemens AktiengesellschaftInventors: Jens Hamann, Hans-Peter Tröndle, Bernd Wedel
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Publication number: 20100092262Abstract: A machine tool includes a first motor, a gear, and a machine element which is movable in a direction of movement by the first motor via the gear. A second motor is provided to apply a force directly upon the machine element in the direction of movement of the machine element in the absence of an interposed gear between the second motor and the machine element. The second motor is constructed to operate in such a way that the applied force counteracts an oscillatory movement of the machine element in the direction of movement of the machine element.Type: ApplicationFiled: October 9, 2009Publication date: April 15, 2010Applicant: Siemens AktiengesellschaftInventors: JENS HAMANN, JÜRGEN KREJTSCHI, ELMAR SCHÄFERS, DIETMAR STOIBER
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Publication number: 20100052450Abstract: A drive arrangement with a first motor and a second motor is described, the first and second motor being coupled via a first coupling unit. The first motor is provided to generate uniform low-frequency movements and the second motor performs a higher frequency alternating movement to be overlapped. The total movement is transmitted from the second motor to a machine component coupled via a second coupling unit. The first coupling unit is configured to transfer the uniform low-frequency movement of the first motor to the second motor, wherein a transmission of the higher frequency alternating movement of the second motor to the first motor is suppressed.Type: ApplicationFiled: November 30, 2007Publication date: March 4, 2010Inventors: Jens Hamann, Jürgen Krejtschi, Elmar Schäfers
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Publication number: 20090310752Abstract: According to the invention, an X-ray examination may be simply and rapidly carried out and hence produce a sharp X-ray image with an X-ray source (27) and/or X-ray receiver (35) an X-ray examination system (15 and 31 and 43) which may be displaced relative to the mounting position thereof by means of an actuator (10), despite a system construction which may be caused to oscillate at a resonant frequency (5) dependent on the corresponding mounting position, about the mounting position, whereby according to the inventive method, at least one parameter relevant to the resonant frequency, dependent on the corresponding mounting position, is determined, a set guided movement (4), counteracting the cause of oscillation in order to achieve a movement condition for the X-ray source (27) or X-ray receiver (35) necessary for the X-ray examination, is determined depending on the at least one corresponding parameter and the guided movement of the X-ray source (27) and/or X-ray receiver (35) controlled using the actuatorType: ApplicationFiled: April 18, 2006Publication date: December 17, 2009Inventors: Gerhard Forster, Jens Hamann, Uwe Ladra, Claus-Günter Schliermann, Elmar Schäfers
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Publication number: 20090278019Abstract: The invention relates to a machine provided with a machine element (5) movable along a cross-beam (1) and a measuring element (4) for measuring the machine element (5) position, wherein said cross-beam (1) is carried by first and second support elements (2, 3), the cross-beam is fixedly connected to the first support element (2) and movably connected to the second support element (3), the measuring element (4) is fixedly connected to the second support element (3) and movably connected to the first support element (2) The inventive machine makes it possible to reduce the influence of the support elements (2, 3) deformation on the accuracy of measurement of the machine element (5) position.Type: ApplicationFiled: June 16, 2006Publication date: November 12, 2009Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Jens Hamann, Uwe Ladra, Elmar Schäfers, Dietmar Stoiber
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Publication number: 20090218473Abstract: The invention relates to a machine, whereby at least one machine bed (2) of the machine is linked to a floor (1), by means of at least one support element (9a), said support element (9a) being pivotally mounted in relation to the machine bed (2) and the floor (1). The invention also relates to a support element (9a), for bearing a machine, whereby said support element (9a) comprises means (10a), by which the support element is pivotally linked to the machine and means (11a), by which said element is pivotally linked to the floor (1). The invention thus avoids horizontal movements of the machine bed.Type: ApplicationFiled: April 20, 2005Publication date: September 3, 2009Applicant: Siemens AktiengesellschaftInventors: Jens Hamann, Hans-Peter Tröndle, Bernd Wedel
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Publication number: 20090200968Abstract: A drive apparatus with at least one synchronous motor, a converter and a mechanical energy buffer able to be fed from an energy supply network, which, for converting mechanical energy into electrical current, includes a first asynchronous machine, and a method of operation for such a drive apparatus are specified, with which or in which the energy buffer, especially its first asynchronous machine is directly electrically connected via a switchover device to the at least one synchronous motor, so that the converter included in the drive apparatus is bypassed for such a switch position of the switchover device and the converter accordingly does not have to be designed for currents which flow in such a switch position of the switchover device.Type: ApplicationFiled: April 23, 2009Publication date: August 13, 2009Inventors: Wolfram Behr, Jens Hamann, Markus Knorr, Jurgen Krejtschi, Elmar Schafers, Dietmar Stoiber, Wolfgang Wolter
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Patent number: 7566193Abstract: The invention relates to a tool head for moving a tool (6) having a plurality of mobile shafts (2, 4, 5, 8, 11) which allow to move the tool (6) linearly and rotationally. The invention also relates to a combination drive (10) for driving a shaft by means of which the shaft (11) driven by the combination drive (10) can perform a linear and rotational movement and to the use of a combination drive (10) for driving a shaft (11) of a tool head for moving a tool, the shaft (11) driven by the combination drive (10) being capable of performing a linear and a rotational movement. The invention finally relates to a method for movement control. The invention provides a tool head that allows very high dynamics of movement of the tool.Type: GrantFiled: August 9, 2007Date of Patent: July 28, 2009Assignee: Siemens AktiengesellschaftInventors: Ali Haj-Fraj, Jens Hamann, Uwe Ladra, Hans-Peter Tröndle
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Publication number: 20090160389Abstract: The invention relates to a method for guiding the displacement of a displaceable machine element (18) in a machine, comprising the following steps: a) specification of a guide target variable (xtarg) that describes the desired displacement operation of the machine element (18); b) determination of a pilot actual variable (Mpilot) and/or a guide actual variable (xact) from the guide target variable (xtarg) using a model (2), said model (2) comprising a path model (3), which simulates the dynamic behaviour of the elements (16, 18) involved in the displacement. The invention also relates to a device that corresponds to the method. The invention permits the optimised guidance of the displacement of a displaceable machine element (18) in a machine.Type: ApplicationFiled: September 27, 2006Publication date: June 25, 2009Applicant: Siemens AktiengesellschaftInventors: Joachim Denk, Klaus Geissdörfer, Jens Hamann, Elmar Schäfers, Bernd Wedel
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Publication number: 20090088891Abstract: The invention relates to a method and a control unit (8) for guiding the displacement of a displaceable machine element (9) of a machine, said method comprising the following steps that are carried out in the control unit (8): a) input of a travel displacement (Xv) that is to be carried out by the machine element (9) and an optimisation criterion (OpK); b) determination of a displacement profile (Xsollk(t)) using the travel displacement that is to be carried out by the machine element (9) and the optimisation criterion (OpK), c) determination of a target position variable (Xsoll(n)) by means of the displacement profile (Xsollk(t)), d) output of the target position variable (Xsoll(n)) to a controller (6) for carrying out the travel displacement of the machine element (9). The invention provides a simple method and a simple control unit (8) for optimising the guidance of the displacement of a displaceable machine element (9) of a machine.Type: ApplicationFiled: June 2, 2006Publication date: April 2, 2009Applicant: Siemens AktiengesellschaftInventors: Johannes Birzer, Jens Hamann, Raimund Kram, Uwe Ladra, Elmar Schafers
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Publication number: 20090050782Abstract: The invention relates to a guiding device (3) for guiding a displaceable machine element (1) of a machine. Said guiding device (3) in connected in a mechanically fixed manner to a machine bed (4). A material measure (6) is arranged along at least one part of the guiding device (3) in order to determine a position of the machine element (1). The guiding device (3) and the material measure (6) can be displaced in relation to each other and at least one part of the material measure (6) is in contact with the guiding device (3) either directly or via a bearing (9). The inventive guiding device (3) enables the displaceable machine elements to be positioned in a precise manner even when the machine bed (4) is vibrated. The invention also relates to a machine comprising said type of guiding device (3).Type: ApplicationFiled: August 26, 2005Publication date: February 26, 2009Inventors: Gerhard Forster, Jens Hamann, Dietmar Stoiber
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Publication number: 20080257667Abstract: The invention relates to a device for decoupling an attachment (7a, 7b, 7c, 7d) from a moving machine element (4) of a machine tool, production machine or of a robot. In order to carry out the decoupling, the attachment (7a, 7b, 7c, 7d) is joined to the machine element (4) via a damping device (13). The invention provides a simple device for decoupling an attachment from a moving machine element of a machine tool, production machine or of a robot.Type: ApplicationFiled: July 25, 2005Publication date: October 23, 2008Applicant: Siemens AktiengesellschaftInventors: Jens Hamann, Alexander Kubik, Uwe Ladra, Elmar Schafers, Dietmar Stoiber
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Patent number: 7421922Abstract: A device for linearly moving a useful mass is described. Typically, when a large useful mass is moved, relatively large forces are transferred by a spindle or a toothed rack to the corresponding machine or machine frame. These forces can be compensated by moving a compensating mass in the opposite direction of the useful mass.Type: GrantFiled: February 20, 2004Date of Patent: September 9, 2008Assignee: Siemens AktiengesellschaftInventors: Jens Hamann, Elmar Schäfers, Bernd Wedel
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Publication number: 20080136362Abstract: The invention relates to a drive system comprising a control unit (1), which is connected to drive units (3a, 3b, 3c, 3d, 3e, 3f, 3g) via a data bus (2) for the exchange of data. According to the invention, one drive unit (3a, 3b) is connected to the drive motor (7a, 7b) in order to control the latter (7a, 7b) and an additional drive unit (3c, 3d, 3e, 3f, 3g) is connected to a magnetic bearing (11c, 11d, 11e, 11f, 11g) of a magnetic spindle bearing arrangement (23) in order to control said bearing (11c, 11d, 11e, 11f, 11g). The invention thus provides a drive system, in which a magnetic spindle bearing arrangement (23) is integrated.Type: ApplicationFiled: May 18, 2005Publication date: June 12, 2008Applicant: Seimens AktiengesellschaftInventors: Jens Hamann, Uwe Ladra, Dietmar Stoiber, Bernd Wedel
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Publication number: 20080105071Abstract: A device for linearly moving a useful mass is described. Typically, when a large useful mass is moved, relatively large forces are transferred by a spindle or a toothed rack to the corresponding machine or machine frame. These forces can be compensated by moving a compensating mass in the opposite direction of the useful mass.Type: ApplicationFiled: April 2, 2007Publication date: May 8, 2008Applicant: Siemens AktiengesellschaftInventors: JENS HAMANN, Elmar Schafers, Bernd Wedel
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Publication number: 20080022793Abstract: A tool head for moving a tool includes a plurality of moveable axles which allow to move the tool linearly and rotationally. A combination drive is provided for driving a shaft such that the shaft is able to execute a linear movement and rotational movement.Type: ApplicationFiled: August 9, 2007Publication date: January 31, 2008Applicant: Siemens AktiengesellschaftInventors: Ali Haj-Fraj, Jens Hamann, Uwe Ladra, Hans-Peter Trondle
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Publication number: 20070183870Abstract: The invention relates to a storage and retrieval system having at least one mast, which is supported at its lower mast end on a running rail via at least two running wheels and can be moved along the running rail guided by at least one driven running wheel of the running rail, having a guide rail (2), which is arranged in the region of the upper mast end (1) and extends parallel to the running rail, having guide rollers, which are mounted such that they can rotate at the upper mast end (1) and bear against the guide rail (2) on both sides so as to guide the mast. In order to damp the mast oscillations occurring during movement, at least one friction roller (4) is provided that rolls on the guide rail (2) and an eddy current brake (7) is provided that is driven by the friction roller (4).Type: ApplicationFiled: August 16, 2006Publication date: August 9, 2007Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Gerhard Forster, Dominik Graefer, Jens Hamann, Uwe Ladra, Gerhard Lehmann, Dietmar Stoiber
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Patent number: 7219041Abstract: A measuring and simulation system for a machine-tool or production machine is described. Measurement results and simulation results are visualized simultaneously side-by-side on a common monitor display screen. A user can then easily set and optimize the control parameters of the machine-tool or production machine by a straightforward comparison between the measurement results and the simulation results.Type: GrantFiled: March 12, 2004Date of Patent: May 15, 2007Assignee: Siemens AktiengesellschaftInventor: Jens Hamann
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Patent number: 7156224Abstract: A circulating mechanism includes a moving member, e.g. a chain or a belt, which travels along a circulating path and is looped about at least one deflecting member for reversing a travel direction of the moving member. Disposed in a section of the circulating path is a guide assembly for guiding the moving member. A magnetic field generating device is provided for applying a magnetic force upon the moving member at least in an area of the guide assembly so as to draw the moving member against the guide assembly and thereby enhance the travel behavior of the moving member.Type: GrantFiled: May 20, 2004Date of Patent: January 2, 2007Assignee: Siemens AktiengesellschaftInventors: Gerhard Forster, Jens Hamann, Dietmar Stoiber, Bernd Wedel
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Patent number: 7152503Abstract: A device for compensating a torque produced on a movable axle in a machine tool or production machine by a gyrostatic effect includes a rotating useful machine system attached to the movable axle and producing a useful angular momentum, and a rotating machine counter-system attached to the axle and producing a counter angular momentum. The magnitude of the counter angular momentum is substantially identical to the magnitude of the useful angular momentum. The useful torque produced by a movement of the rotating useful machine system through a temporal change of the useful angular momentum is at least partially compensated by a counter-torque produced by a temporal change of the counter angular momentum. This arrangement represents a simple device for compensating a torque produced by the gyrostatic effect on a movable axle of machine tolls and production machines.Type: GrantFiled: November 12, 2004Date of Patent: December 26, 2006Assignee: Siemens AktiengesellschaftInventors: Gerhard Forster, Winfried Glück, Jens Hamann, Uwe Ladra, Elmar Schäfers, Dietmar Stoiber, Hans-Peter Tröndle, Bernd Wedel