Patents by Inventor Lutz Fiessler
Lutz Fiessler 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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Publication number: 20220395890Abstract: A forming press having a machine bed on which a first tool is arranged, and having a tool carrier which is accommodated to the machine bed such that it can move relative thereto and further including a second tool and a drive for moving the tool carrier and a machine control for controlling the drive, and having a safety control for disabling the drive, wherein the safety control deactivates a first radiation detector if a first status signal, which results from a comparison between a first current position value with a first deactivation position value matches with a second status signal which results from a comparison between a second current position value with the first deactivation position value.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Inventor: Lutz Fiessler
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Patent number: 11413674Abstract: A deforming machine (1) with a machine frame (2), on which an upper tool (4) and a lower tool (5) are arranged, which form a working gap (8) of variable size, with a first optical safety light barrier (20) for securing a first safety space (28) adjacent to the working gap (8) and with a second optical safety light barrier (30) for securing a second safety space (31), which is located in front of a largest surface (18) of the upper tool (4). The second optical safety light barrier (30) is designed for monitoring a third safety space (51) which extends downwards beyond the end face (6) of the upper tool (4) facing the lower tool (5) along the movement path (14) in the direction of the lower tool (5), so that a projection of the third safety space (51) onto the working gap (8) covers at least a section of the working gap (8).Type: GrantFiled: April 9, 2020Date of Patent: August 16, 2022Assignee: Fiessler Elektronik GmbH & Co. KGInventor: Lutz Fiessler
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Publication number: 20200324332Abstract: A deforming machine (1) with a machine frame (2), on which an upper tool (4) and a lower tool (5) are arranged, which form a working gap (8) of variable size, with a first optical safety light barrier (20) for securing a first safety space (28) adjacent to the working gap (8) and with a second optical safety light barrier (30) for securing a second safety space (31), which is located in front of a largest surface (18) of the upper tool (4). The second optical safety light barrier (30) is designed for monitoring a third safety space (51) which extends downwards beyond the end face (6) of the upper tool (4) facing the lower tool (5) along the movement path (14) in the direction of the lower tool (5), so that a projection of the third safety space (51) onto the working gap (8) covers at least a section of the working gap (8).Type: ApplicationFiled: April 9, 2020Publication date: October 15, 2020Inventor: Lutz Fiessler
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Publication number: 20180126682Abstract: Deformation device with a machine frame on which a pair of tools is arranged, wherein one of the tools is arranged on the machine frame so as to be relatively movable along a movement path and the tools form a size-variable working gap and wherein a first optical safety device is assigned to the movable tool, the safety device comprises a first beam source to provide a first beam bundle parallel to the end surfaces of the tools and a first light receiver to receive the first beam bundle wherein a second optical safety device is assigned to one of the tools, the second optical safety device comprises a second beam source to provide a second beam bundle and a second light receiver to receive the second beam bundle to secure a side surface of the tool aligned normal to the movement path and bordering on the end surface.Type: ApplicationFiled: November 10, 2017Publication date: May 10, 2018Inventors: Lutz FIESSLER, Götz FIESSLER
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Patent number: 9862018Abstract: A forming apparatus comprises: a machine bed; a tool holder mounted movably relative to the machine bed; a drive unit connected to the tool holder; a disconnector unit; a machine control for operating the drive unit; and a monitoring device to monitor movements of the tool holder and to activate the disconnector unit. The monitoring unit includes two distance measuring systems that respectively generate first and second position signals at different rates for determining a position of the tool holder relative to the machine bed. At least one radiation beam detector is deactivated in response to a different between the first and second position signals undershooting a predetermined value.Type: GrantFiled: April 15, 2015Date of Patent: January 9, 2018Assignee: FIESSLER ELEKTRONIK GMBH & CO. KGInventor: Lutz Fiessler
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Patent number: 9421678Abstract: A forming device comprising a machine bed, a tool carrier supported on the machine bed in a manner capable of relative movement for mounting a tool, a drive device coupled to the tool carrier, a machine control unit and a monitoring device designed for monitoring movements of the tool carrier and for providing a shutdown signal to a disconnecting device located upstream of the drive device on the occurrence of a pre-settable monitoring case. It is provided that the machine control unit is designed in accordance with a first safety category of a safety standard, and that the monitoring device and the disconnecting device form a safe operating system designed in accordance with a second safety category of the safety standard, the second safety category being at a higher level than the first safety category within the safety standard.Type: GrantFiled: March 18, 2013Date of Patent: August 23, 2016Assignee: FIESSLER ELEKTRONIK GMBH & CO. KGInventor: Lutz Fiessler
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Publication number: 20150314364Abstract: A forming apparatus comprises: a machine bed; a tool holder mounted movably relative to the machine bed; a drive unit connected to the tool holder; a disconnector unit; a machine control for operating the drive unit; and a monitoring device to monitor movements of the tool holder and to activate the disconnector unit. The monitoring unit includes two distance measuring systems that respectively generate first and second position signals at different rates for determining a position of the tool holder relative to the machine bed. At least one radiation beam detector is deactivated in response to a different between the first and second position signals undershooting a predetermined value.Type: ApplicationFiled: April 15, 2015Publication date: November 5, 2015Inventor: Lutz FIESSLER
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Publication number: 20130269962Abstract: A forming device comprising a machine bed, a tool carrier supported on the machine bed in a manner capable of relative movement for mounting a tool, a drive device coupled to the tool carrier, a machine control unit and a monitoring device designed for monitoring movements of the tool carrier and for providing a shutdown signal to a disconnecting device located upstream of the drive device on the occurrence of a pre-settable monitoring case. It is provided that the machine control unit is designed in accordance with a first safety category of a safety standard, and that the monitoring device and the disconnecting device form a safe operating system designed in accordance with a second safety category of the safety standard, the second safety category being at a higher level than the first safety category within the safety standard.Type: ApplicationFiled: March 18, 2013Publication date: October 17, 2013Applicant: FIESSLER ELEKTRONIK GMBH & CO. KGInventor: Lutz Fiessler
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Patent number: 6919555Abstract: A guard device for machines such as bending presses, cutting machines, stamping machines or the like, has a first machine part which performs operative movements toward a second machine part. A laser photoelectric detector arrangement is attached to the first machine part and possesses at least one photoelectric detector, whose light beam shines in an adjustable secure distance from this machine part. On interruption of the light beam the operative motion is arrested. An abutment arrangement on the second machine part prevents interruption of the light beam. The photoelectric detector arrangement is either so laterally offset that an interruption of the light beam by the first machine part is excluded during further movement or the photoelectric detector arrangement is arranged on the first machine part in the working path thereof. A switch, able to be worked on reaching the abutting position, deactivates photoelectric detector.Type: GrantFiled: December 13, 2002Date of Patent: July 19, 2005Assignee: Fiessler Elektronik oHGInventor: Lutz Fiessler
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Guard means for machines, more particularly pressbrakes, guillotines, stamping machines and the like
Patent number: 6752253Abstract: A guard device for machines such as pressbrakes, guillotines, stamping machines and the like, in the case of which a first machine part performs working movements toward a second machine part. At least one photoelectric detector, more especially a laser photoelectric detector, has its light beam extending perpendicularly to the direction of working movement and is able to be so positioned between the two machine parts at one thereof that its light beam is at a safety distance from such machine part, such safety distance being able to be set by means of a guard device arranged adjustably on this one machine part, such guard device bearing the at least one photoelectric detector. A halting mechanism is adapted to arrest the working movement on interruption of the light beam and a switching off mechanism serves for switching off the halting mechanism directly prior to interruption of the light beam.Type: GrantFiled: May 15, 2002Date of Patent: June 22, 2004Assignee: Fiessler Elektronik oHGInventor: Lutz Fiessler -
Patent number: 6677574Abstract: A guard means for machines, more particularly pressbrakes, guillotines, stamping machines and the like in the case of which a first machine part (10) performs working movements toward a second machine part (11). Between the machine parts a photoelectric detector arrangement {19 and 20) is positioned and is attached to the moving machine part (10), a stop means being adapted to halt working motion of the moving machine part on interruption of a light beam. A control means for the working movement of the moving machine part (10) reduces the speed immediately prior to light beam interruption by the other machine part (11) to below a threshold limit speed. By means of a speed measuring means (25 and 26) the working speed is measured and the stop means is deactivated below the predetermined threshold limit speed at least partially in order to be able to complete the working movement even in the case of interruption of the light beam by the other machine part (11).Type: GrantFiled: January 31, 2002Date of Patent: January 13, 2004Assignee: Fiessler Elektronik OHGInventor: Lutz Fiessler
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Publication number: 20030132371Abstract: A guard device for machines such as bending presses, cutting machines, stamping machines or the like, has a first machine part which performs operative movements toward a second machine part. A laser photoelectric detector arrangement is attached to the first machine part and possesses at least one photoelectric detector, whose light beam shines in an adjustable secure distance from this machine part. On interruption of the light beam the operative motion is arrested. An abutment arrangement on the second machine part prevents interruption of the light beam. The photoelectric detector arrangement is either so laterally offset that an interruption of the light beam by the first machine part is excluded during further movement or the photoelectric detector arrangement is arranged on the first machine part in the working path thereof. A switch, able to be worked on reaching the abutting position, deactivates photoelectric detector.Type: ApplicationFiled: December 13, 2002Publication date: July 17, 2003Inventor: Lutz Fiessler
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Guard means for machines, more particularly pressbrakes, guillotines, stamping machines and the like
Publication number: 20020170401Abstract: A guard means for machines such as pressbrakes, guillotines, stamping machines and the like, in the case of which a first machine part performs working movements toward a second machine part. At least one photoelectric detector, more especially a laser photoelectric detector, has its light beam extending perpendicularly to the direction of working movement and is able to be so positioned between the two machine parts at one thereof that its light beam is at a safety distance from such machine part, such safety distance being able to be set by means of a guard means arranged adjustably on this one machine part, such guard means bearing the at least one photoelectric detector. A halting means is adapted to arrest the working movement on interruption of the light beam and a switching off means serves for switching off the halting means directly prior to interruption of the light beam.Type: ApplicationFiled: May 15, 2002Publication date: November 21, 2002Applicant: Fiessler Elektronik OHGInventor: Lutz Fiessler -
Publication number: 20020104958Abstract: A guard means for machines, more particularly pressbrakes, guillotines, stamping machines and the like in the case of which a first machine part (10) performs working movements toward a second machine part (11). Between the machine parts a photoelectric detector arrangement {19 and 20) is positioned and is attached to the moving machine part (10), a stop means being adapted to halt working motion of the moving machine part on interruption of a light beam. A control means for the working movement of the moving machine part (10) reduces the speed immediately prior to light beam interruption by the other machine part (11) to below a threshold limit speed.Type: ApplicationFiled: January 31, 2002Publication date: August 8, 2002Inventor: Dr. Lutz Fiessler