Patents by Inventor Ralf Hartramph
Ralf Hartramph 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: 11035697Abstract: A sensor system that simultaneously detects the positions of multiple movable carriages along a motion path. The sensor system includes a plurality of sensors arranged at least along a subsection of the motion path, wherein each sensor is designed for a contactless detection of a measuring element provided on each movable carriage. The sensor system also includes a processing device, which is connected electrically with the sensors and which is designed for a synchronous detection of sensor signals of the sensors.Type: GrantFiled: October 9, 2019Date of Patent: June 15, 2021Assignee: FESTO SE & CO. KGInventors: Ralf Hartramph, Fabian Albert, Andreas Veit
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Patent number: 10833572Abstract: An electric linear motor having a motor housing which is penetrated by an armature recess, in which a first magnet arrangement is accommodated in a stationary manner and in which an armature which has a second magnet arrangement is accommodated to be linearly movable along a movement path, wherein at least one of the magnet arrangements includes comprises a magnetic flux guide configured as a profile body and having at least one cross-sectional taper which is configured for a local increase of a flux resistance for a magnetic flux in the magnetic flux guide which is oriented along a movement path, wherein the cross-sectional taper has in the transverse direction to the movement path an extension which is less than an extension of the profile body the transverse direction to the movement path.Type: GrantFiled: October 14, 2016Date of Patent: November 10, 2020Assignee: FESTO SE & CO. KGInventors: Ralf Hartramph, Martin Rapp, Andreas Braig
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Patent number: 10657777Abstract: A sensor with a signal strip, a segment with such a signal strip and a sensor, a linear drive and an installation, wherein the signal strip is assigned in each case to at least one segment, where the signal strip indicates a state of the segment and/or the state of a runner, where the at least one runner is moved by a respective segment, the state is assigned by a sensor assigned to the respective segment and is presented to a user who services the installation, in particular the linear drive of the installation, such the time interval for servicing the installation or the linear drive can be reduced because the operator of the linear drive immediately identifies the state of the respective runner or the respective segment.Type: GrantFiled: April 6, 2017Date of Patent: May 19, 2020Assignees: Siemens Aktiengesellschaft, FESTO AG & CO.Inventors: Reinhold Hamik, Fabian Albert, Ralf Hartramph, Andreas Veit
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Publication number: 20200041309Abstract: A sensor system for detecting a position of a measuring element movable along a motion path, having a sensor arrangement, which includes a plurality of sensors arranged at least along a subsection of the motion path, which in each case are designed for a contactless detection at least of one physical dimension dependent on a position of a measuring element along the motion path as well as for a provision at least of one sensor signal dependent on the a least one determined physical dimension, as well as having a processing device, which is connected electrically with the sensors and which is designed for a processing of the sensor signals to form at least one position signal, which represents the position at least of one measuring element along the motion path, wherein the processing device is designed for a synchronous detection of sensor signals of the sensors.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Inventors: Ralf Hartramph, Fabian Albert, Andreas Veit
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Publication number: 20180301970Abstract: An electric linear motor having a motor housing which is penetrated by an armature recess, in which a first magnet arrangement is accommodated in a stationary manner and in which an armature which has a second magnet arrangement is accommodated to be linearly movable along a movement path, wherein at least one of the magnet arrangements includes comprises a magnetic flux guide configured as a profile body and having at least one cross-sectional taper which is configured for a local increase of a flux resistance for a magnetic flux in the magnetic flux guide which is oriented along a movement path, wherein the cross-sectional taper has in the transverse direction to the movement path an extension which is less than an extension of the profile body the transverse direction to the movement path.Type: ApplicationFiled: October 14, 2016Publication date: October 18, 2018Inventors: Ralf Hartramph, Martin Rapp, Andreas Braig
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Patent number: 10103672Abstract: A stator segment for a linear motor-based transport system is developed to the effect that a transmitter for cyclic transmission of a control data record in a first clock cycle also transmits, in addition to transmitting the control data record, a position value in a clock-synchronized manner, wherein a plurality of positions are available as a sequence with a quantity of elements and an element with an index corresponds to a position, where the transmitter unit is configured such that, upon every first clock cycle, the index is incremented commencing from a starting value and an element is transmitted after the control data record, where the transmitter unit is furthermore configured to transmit all elements in one transmission interval, and where the transmission interval corresponds to a multiple of the first clock cycle.Type: GrantFiled: April 17, 2017Date of Patent: October 16, 2018Assignees: Siemens Aktiengesellschaft, Festo AG & Co. KGInventors: Fabian Albert, Marco Gierden, Ralf Hartramph, Michael Jaentsch, Sven Rothe, Carsten Spindler, Andreas Veit
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Patent number: 9989380Abstract: A method for ascertaining a position error in a linear drive, a linear drive, a method for operating the linear drive and an installation, wherein the deviation of a respective further runner in relation to a first runner (reference runner) is ascertained to determine the position error, where the discrepancy of the respective sensor is ascertained based on the deviation of the runner, the discrepancy may be ascertained using a reference system, the position error may be established based on the discrepancy of the respective sensor PS and the deviation of the respective runner, and where the position error may serve for the improved positioning, i.e., more precise positioning, of the respective runner on the linear drive or of the segments.Type: GrantFiled: April 6, 2017Date of Patent: June 5, 2018Assignees: Siemens Aktiengesellschaft, Festo AG & Co. KGInventors: Fabian Albert, Ralf Hartramph, Chris Hofmann, Michael Jaentsch, Sven Rothe, Carsten Spindler, Andreas Veit
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Publication number: 20170310262Abstract: A stator segment for a linear motor-based transport system is developed to the effect that a transmitter for cyclic transmission of a control data record in a first clock cycle also transmits, in addition to transmitting the control data record, a position value in a clock-synchronized manner, wherein a plurality of positions are available as a sequence with a quantity of elements and an element with an index corresponds to a position, where the transmitter unit is configured such that, upon every first clock cycle, the index is incremented commencing from a starting value and an element is transmitted after the control data record, where the transmitter unit is furthermore configured to transmit all elements in one transmission interval, and where the transmission interval corresponds to a multiple of the first clock cycle.Type: ApplicationFiled: April 17, 2017Publication date: October 26, 2017Inventors: Fabian ALBERT, Marco GIERDEN, Ralf HARTRAMPH, Michael JAENTSCH, Sven ROTHE, Carsten SPINDLER, Andreas VEIT
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Publication number: 20170305671Abstract: A method for ascertaining a position error in a linear drive, a linear drive, a method for operating the linear drive and an installation, wherein the deviation of a respective further runner in relation to a first runner (reference runner) is ascertained to determine the position error, where the discrepancy of the respective sensor is ascertained based on the deviation of the runner, the discrepancy may be ascertained using a reference system, the position error may be established based on the discrepancy of the respective sensor PS and the deviation of the respective runner, and where the position error may serve for the improved positioning, i.e., more precise positioning, of the respective runner on the linear drive or of the segments.Type: ApplicationFiled: April 6, 2017Publication date: October 26, 2017Inventors: Fabian ALBERT, Ralf HARTRAMPH, Chris HOFMANN, Michael JAENTSCH, Sven ROTHE, Carsten SPINDLER, Andreas VEIT
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Publication number: 20170309139Abstract: A sensor with a signal strip, a segment with such a signal strip and a sensor, a linear drive and an installation, wherein the signal strip is assigned in each case to at least one segment, where the signal strip indicates a state of the segment and/or the state of a runner, where the at least one runner is moved by a respective segment, the state is assigned by a sensor assigned to the respective segment and is presented to a user who services the installation, in particular the linear drive of the installation, such the time interval for servicing the installation or the linear drive can be reduced because the operator of the linear drive immediately identifies the state of the respective runner or the respective segment.Type: ApplicationFiled: April 6, 2017Publication date: October 26, 2017Inventors: Reinhold HAMIK, Fabian ALBERT, Ralf HARTRAMPH, Andreas VEIT
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Publication number: 20170307408Abstract: A sensor system for detecting a position of a measuring element movable along a motion path, having a sensor arrangement, which includes a plurality of sensors arranged at least along a subsection of the motion path, which in each case are designed for a contactless detection at least of one physical dimension dependent on a position of a measuring element along the motion path as well as for a provision at least of one sensor signal dependent on the a least one determined physical dimension, as well as having a processing device, which is connected electrically with the sensors and which is designed for a processing of the sensor signals to form at least one position signal, which represents the position at least of one measuring element along the motion path, wherein the processing device is designed for a synchronous detection of sensor signals of the sensors.Type: ApplicationFiled: April 21, 2017Publication date: October 26, 2017Inventors: Ralf Hartramph, Fabian Albert, Andreas Veit
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Patent number: 9496815Abstract: A method for operating a linear motor assembly includes: open-loop controlled introduction of electric energy to a first stator segment provided with solenoids for an open-loop controlled provision of a magnetic field for a permanent magnet arrangement of a conveying means for a generation of drive forces, and closed-loop controlled introduction of electric energy to a second stator segment provided with a measuring device for a detection of a position of a conveying means and with solenoids for a closed-loop controlled provision of a magnetic field acting on the conveying means, wherein a controlling device effects a temporary switch-over of the second stator segment from a closed-loop controlled state to an open-loop controlled state at a transition of the conveying means from the first stator segment to the second stator segment, and/or at a transition of the conveying means from the second stator segment to the first stator segment.Type: GrantFiled: December 14, 2013Date of Patent: November 15, 2016Assignee: FESTO AG & CO. KGInventors: Dominic Kadynski, Jan Reimer, Benjamin Klein, Ralf Hartramph
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Publication number: 20160190966Abstract: A method for operating a linear motor assembly includes: open-loop controlled introduction of electric energy to a first stator segment provided with solenoids for an open-loop controlled provision of a magnetic field for a permanent magnet arrangement of a conveying means for a generation of drive forces, and closed-loop controlled introduction of electric energy to a second stator segment provided with a measuring device for a detection of a position of a conveying means and with solenoids for a closed-loop controlled provision of a magnetic field acting on the conveying means, wherein a controlling device effects a temporary switch-over of the second stator segment from a closed-loop controlled state to an open-loop controlled state at a transition of the conveying means from the first stator segment to the second stator segment, and/or at a transition of the conveying means from the second stator segment to the first stator segment.Type: ApplicationFiled: December 14, 2013Publication date: June 30, 2016Inventors: Dominic KADYNSKI, Jan REIMER, Benjamin KLEIN, Ralf HARTRAMPH
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Patent number: 7598697Abstract: A motor and a method for serves finding the position of an armature in relation to a stator of the motor.Type: GrantFiled: June 26, 2007Date of Patent: October 6, 2009Assignee: Festo AG & Co.Inventors: Christian Welk, Michael Apel, Ralf Hartramph
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Publication number: 20080042610Abstract: A motor and a method for serves finding the position of an armature in relation to a stator of the motor.Type: ApplicationFiled: June 26, 2007Publication date: February 21, 2008Inventors: Christian Welk, Michael Apel, Ralf Hartramph
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Patent number: 7323798Abstract: An electrodynamic direct drive includes an armature that travels within a housing and a drive system for moving armature in relation to housing. The drive system has two drive means, that are moved in relation to each other in the form of a coil system with at least one coil and a magnet system with at least one permanent magnet to move a load driver coupled with the armature. A displacement measurement space is defined by an end face of the armature and walls of the housing and/or the surface of the internally placed drive means. A sensor detects position of the armature within the housing by electromagnetic waves. The distance of the armature from the sensor is measured on the basis of the transit time of electromagnetic waves.Type: GrantFiled: November 19, 2004Date of Patent: January 29, 2008Assignee: Festo AG & Co.Inventors: Ralf Hartramph, Matthias Finkbeiner, Thomas Reininger
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Publication number: 20050121985Abstract: An electrodynamic direct drive and more particularly a linear drive, comprises an armature adapted to travel within a housing, a drive system for moving such armature in relation to said housing, such drive system having two drivingly cooperating drive means, able to be moved in relation to each other, in the form of a coil system with at least one coil, and a magnet system with at least one permanent magnet in order to move a load driver coupled with the armature. In accordance with the invention, a displacement measurement space is defined by an end face of the armature and the walls of the housing and/or the surface of the internally placed drive means.Type: ApplicationFiled: November 19, 2004Publication date: June 9, 2005Inventors: Ralf Hartramph, Matthias Finkbeiner, Thomas Reininger
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Patent number: 6787944Abstract: An electrodynamic direct linear drive (1) has a coil system (2) with a plurality of coaxially sequentially following drive coils (3). In the interior or on the external periphery of the coil system (2) a magnet system (6) is arranged, which is designed in the form of a component of an output part (8) able to be moved in relation to the coil system (2). On the opposite side of the magnet system (6) a return circuit means (15) is arranged internally or externally of the coil system (2). In order to achieve a high energy density axially adjacent drive coils (3) contact each other directly. Furthermore a method for the production of the coil system (2) is provided.Type: GrantFiled: March 26, 2003Date of Patent: September 7, 2004Assignee: Festo AG & Co.Inventors: Matthias Finkbeiner, Ralf Hartramph
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Publication number: 20040100152Abstract: An electrodynamic direct linear drive (1) has a coil system (2) with a plurality of coaxially sequentially following drive coils (3). In the interior or on the external periphery of the coil system (2) a magnet system (6) is arranged, which is designed in the form of a component of an output part (8) able to be moved in relation to the coil system (2). On the opposite side of the magnet system (6) a return circuit means (15) is arranged internally or externally of the coil system (2). In order to achieve a high energy density axially. adjacent drive coils (3) contact each other directly. Furthermore a method for the production of the coil system (2) is provided.Type: ApplicationFiled: March 26, 2003Publication date: May 27, 2004Inventors: Matthias Finkbeiner, Ralf Hartramph
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Patent number: 6700227Abstract: A direct electrodynamic linear drive comprising a drive coil system composed of coils arranged in a row alongside each other on an elongated ferromagnetic core, which coil is able to be supplied with a switched exciting voltage. The drive coil system has a ferromagnetic tube fitting around it, on whose inner side a plurality of permanent magnets are arranged in a row in the longitudinal direction of the tube. The core provided with the drive coil system is adapted to function as a stator and the tube having the permanent magnets as an armature. In this arrangement the ferromagnetic tube serves as a guide tube, as a magnetic return member and as a holder means for the permanent magnets, the possibility of a simple and accurate longitudinal guiding of the tube meaning that elongated units with a small cross section may be manufactured.Type: GrantFiled: March 14, 2001Date of Patent: March 2, 2004Assignee: Festo AG & Co.Inventor: Ralf Hartramph