Patents by Inventor Juergen Fahrenbach
Juergen Fahrenbach 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: 10367382Abstract: A laminated core can be contained in a rotor and/or in a stator and include at least one first sheet metal part assembly and at least one second sheet metal part assembly. The two sheet metal part assemblies are arranged alternately lying one against the other in a stacking direction. Every first sheet metal part has first teeth projecting from a connecting part radially relative to the axis of rotation. Correspondingly, every second sheet metal part has second teeth projecting from a second connecting part. The first teeth extend from the axis of rotation at a distance different from how far the second teeth extends from the axis of rotation to form a step to mesh the rotor with an associated stator and increase the air gap between them without increasing dimensions of the laminated cores in the stacking direction.Type: GrantFiled: July 17, 2015Date of Patent: July 30, 2019Assignee: Schuler Pressen GmbHInventor: Jürgen Fahrenbach
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Patent number: 10160023Abstract: The drawing press according to the invention includes a support structure for supporting a metal sheet holder which is part of a tool and supported on the press frame via the support structure. The metal sheet holder is assigned a plunger with a die tool, whereas the plunger is moved by means of a plunger drive which includes a blocking position. The blocking position is obtained, for example, by a drive which, in the blocking position does not transmit any movement of the drive output to the driving servomotor. This can be achieved, for example, by an eccentric drive in the stretched position thereof. For performing the actual drawing stroke, the stamping tool is vertically movably supported. A carriage is raised or lowered by the press table by means of a table drive. As table drive, preferably a servomotor with a non-linear drive, such as an eccentric drive is used.Type: GrantFiled: February 13, 2013Date of Patent: December 25, 2018Assignee: SCHULER PRESSEN GMBHInventors: Dietmar Schoellhammer, Martin Schmeink, Andreas Dangelmayr, Hans Hofele, Juergen Fahrenbach
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Publication number: 20180264536Abstract: The drawing press according to the invention includes a support structure for supporting a metal sheet holder which is part of a tool and supported on the press frame via the support structure. The metal sheet holder is assigned a plunger with a die tool, whereas the plunger is moved by means of a plunger drive which includes a blocking position. The blocking position is obtained, for example, by a drive which, in the locking position does not transmit any movement of the drive output to the driving servomotor. This can be achieved, for example, by an eccentric drive in the stretched position thereof. For performing the actual drawing stroke, the stamping tool is vertically movably supported. A carriage is raised or lowered by the press table by means of a table drive. As table drive, preferably a servomotor with a non-linear drive, such as an eccentric drive is used.Type: ApplicationFiled: February 13, 2013Publication date: September 20, 2018Applicant: SCHULER PRESSEN GMBHInventors: DIETMAR SCHOELLHAMMER, Martin Schmeink, Andreas Dangelmayr, Hans Hofele, Juergen Fahrenbach
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Publication number: 20180050424Abstract: A sheet metal part (20) is produced from a starting sheet metal (27) and has at least one side edge (32) extending along the grain boundaries of the sheet metal material. Separating or breaking the starting sheet metal (27) at a separation location (28) is induced by forming a notch in the starting sheet metal or by cutting or scratching into the starting sheet metal. The starting sheet metal is clamped via a first portion (30) adjacently to the separation location (28). A second portion (31) disposed on the side of the separation location (28) opposite the first portion (30) is acted on to produce a bending moment M about a bending axis B at the separation location (28) and/or to produce a tensile force Z directed away from the separation location (28).Type: ApplicationFiled: March 1, 2016Publication date: February 22, 2018Inventor: Jürgen Fahrenbach
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Patent number: 9868264Abstract: A press with a press drive for moving a plunger in stroke direction (H). The press drive comprises two electric drive motors which are controllable independently of each other. The two drive motors are connected to the plunger via a drive unit. A control arrangement is provided for controlling the two drive motors. The control arrangement includes a characteristic plunger curve (K) which determines the plunger positions and/or the plunger movement and/or the plunger force dependent on time or dependent on a so-called virtual press angle. In addition, the control arrangement includes an additional condition which is independent of the characteristic plunger curve (K). Via the additional condition the operation of the press drive, for example, in an optimum operating range and/or a low-wear lubrication state of the support bearings of the drive unit can be ensured.Type: GrantFiled: March 15, 2013Date of Patent: January 16, 2018Assignee: SCHULER PRESSEN GMBHInventor: Juergen Fahrenbach
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Publication number: 20170237303Abstract: A sheet-metal part or sintered part (10) for a stator or a rotor has a connection part (11) from which teeth (12) disposed at regular intervals project away. Each tooth has at least one first tooth segment (22) as well as at least one second tooth segment (23) produced from different magnetizable materials (M1, M2). In this way, the materials (M1, M2) can be used in targeted manner with regard to their magnetic and/or mechanical properties, in the region of the tooth (12), to optimize the magnetic and/or mechanical behavior of the tooth (12) and consequently of the sheet-metal part or sintered part (10). In particular, at least one first tooth segment (22) has a saturation magnetization BS1 greater than that of the remainder of the sheet-metal part or sintered part (10).Type: ApplicationFiled: June 29, 2015Publication date: August 17, 2017Inventor: Jürgen Fahrenbach
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Publication number: 20170229929Abstract: A laminated core can be contained in a rotor and/or in a stator and include at least one first sheet metal part assembly and at least one second sheet metal part assembly. The two sheet metal part assemblies are arranged alternately lying one against the other in a stacking direction. Every first sheet metal part has first teeth projecting from a connecting part radially relative to the axis of rotation. Correspondingly, every second sheet metal part has second teeth projecting from a second connecting part. The first teeth extend from the axis of rotation at a distance different from how far the second teeth extends from the axis of rotation to form a step to mesh the rotor with an associated stator and increase the air gap between them without increasing dimensions of the laminated cores in the stacking direction.Type: ApplicationFiled: July 17, 2015Publication date: August 10, 2017Inventor: Jürgen Fahrenbach
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Patent number: 9687907Abstract: A casting device includes a mold cavity configured to form a hollow space for a cast part, a casting chamber for a metal melt, a gating system, an annular duct for the metal melt, and at least two annular duct connections configured to connect the casting chamber to the annular duct. The annular duct is configured to be connectable with the mold cavity via the gating system.Type: GrantFiled: May 19, 2014Date of Patent: June 27, 2017Assignee: SCHULER PRESSEN GMBHInventors: Martin Gaebges, Juergen Fahrenbach, Tobias Schwarz
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Patent number: 9643245Abstract: A method for a die casting with a casting device which includes a casting valve with a valve piston and a post-compression piston configured to provide a post-compression. The method includes providing a casting valve in a closed position and a mold cavity which is cleaned and prepared for a mold filling process, opening the casting valve for a casting, filling the casting valve with a melt, closing the casting valve after the filling with the melt, cooling the casting valve and the melt, and removing a cast part. A post-compression is provided to the melt during the cooling by the post-compression piston.Type: GrantFiled: January 21, 2016Date of Patent: May 9, 2017Assignee: SCHULER PRESSEN GMBHInventors: Juergen Fahrenbach, Martin Gaebges, Michael Richter, Tobias Schwarz
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Patent number: 9457400Abstract: A casting valve configured to supply a melt of a casting device includes a valve housing including a melt channel connection as an inlet and a valve outlet as a run-out. A melt channel is configured to be pressurizable via a casting pressure. A valve compartment is configured to receive the melt. The valve compartment is connectable via the melt channel connection with the melt channel. A closing device is configured to modify a cross-sectional surface of the valve outlet. A post-compression piston is configured to post-compress the melt after a completion of a mold filling.Type: GrantFiled: May 19, 2014Date of Patent: October 4, 2016Assignee: SCHULER PRESSEN GMBHInventors: Juergen Fahrenbach, Martin Gaebges, Michael Richter, Tobias Schwarz
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Publication number: 20160129500Abstract: A method for a die casting with a casting device comprising a casting valve with a valve piston and a post-compression piston configured to provide a post-compression. The method includes providing a casting valve in a closed position and a mold cavity which is cleaned and prepared for a mold filling process, opening the casting valve for a casting, filling the casting valve with a melt, closing the casting valve after the filling with the melt, cooling the casting valve and the melt, and removing a cast part. A post-compression is provided to the melt during the cooling by the post-compression piston.Type: ApplicationFiled: January 21, 2016Publication date: May 12, 2016Applicant: SCHULER PRESSEN GMBHInventors: JUERGEN FAHRENBACH, MARTIN GAEBGES, MICHAEL RICHTER, TOBIAS SCHWARZ
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Publication number: 20140345825Abstract: A casting device includes a mold cavity configured to form a hollow space for a cast part, a casting chamber for a metal melt, a gating system, an annular duct for the metal melt, and at least two annular duct connections configured to connect the casting chamber to the annular duct. The annular duct is configured to be connectable with the mold cavity via the gating system.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Applicant: SCHULER PRESSEN GMBHInventors: MARTIN GAEBGES, Juergen Fahrenbach, Tobias Schwarz
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Publication number: 20140345824Abstract: A casting valve configured to supply a melt of a casting device includes a valve housing comprising a melt channel connection as an inlet and a valve outlet as a run-out. A melt channel is configured to be pressurizable via a casting pressure. A valve compartment is configured to receive the melt. The valve compartment is connectable via the melt channel connection with the melt channel. A closing device is configured to modify a cross-sectional surface of the valve outlet. A post-compression piston is configured to post-compress the melt after a completion of a mold filling.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Applicant: SCHULER PRESSEN GMBHInventors: JUERGEN FAHRENBACH, MARTIN GAEBGES, MICHAEL RICHTER, TOBIAS SCHWARZ
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Patent number: 8776682Abstract: The invention relates to a press having a direct electric drive, without any motion transmitting apparatus, such as, for example, gears or gear drives wherein the electric direct drive is located between an eccentric 3 and a connecting rod 6 and brings about a relative movement between the eccentric 3 and the connecting rod 6.Type: GrantFiled: December 11, 2010Date of Patent: July 15, 2014Assignee: Schuler Pressen GmbH & Co. KGInventor: Jürgen Fahrenbach
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Publication number: 20130247781Abstract: A press with a press drive for moving a plunger in stroke direction (H). The press drive comprises two electric drive motors which are controllable independently of each other. The two drive motors are connected to the plunger via a drive unit. A control arrangement is provided for controlling the two drive motors. The control arrangement includes a characteristic plunger curve (K) which determines the plunger positions and/or the plunger movement and/or the plunger force dependent on time or dependent on a so-called virtual press angle. In addition, the control arrangement includes an additional condition which is independent of the characteristic plunger curve (K). Via the additional condition the operation of the press drive, for example, in an optimum operating range and/or a low-wear lubrication state of the support bearings of the drive unit can be ensured.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicant: Schuler Pressen GmbhInventor: JUERGEN FAHRENBACH
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Patent number: 8505449Abstract: A press drive including an electric motor with a stator and a rotor and permanent magnets arranged around the circumference of the rotor. The rotor includes at least one eccentric integrally therewith and rotatably supported with the rotor. The stator is supported on the rotor by bearings arranged adjacent the eccentrics and is held stationary by torque struts.Type: GrantFiled: June 22, 2010Date of Patent: August 13, 2013Assignee: Schuler Pressen GmbH & Co. KGInventors: Andreas Lauke, Jürgen Fahrenbach
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Publication number: 20130180301Abstract: The drawing press according to the invention includes a support structure for supporting a metal sheet holder which is part of a tool and supported on the press frame via the support structure. The metal sheet holder is assigned a plunger with a die tool, whereas the plunger is moved by means of a plunger drive which includes a blocking position. The blocking position is obtained, for example, by a drive which, in the locking position does not transmit any movement of the drive output to the driving servomotor. This can be achieved, for example, by an eccentric drive in the stretched position thereof. For performing the actual drawing stroke, the stamping tool is vertically movably supported. A carriage is raised or lowered by the press table by means of a table drive. As table drive, preferably a servomotor with a non-linear drive, such as an eccentric drive is used.Type: ApplicationFiled: February 13, 2013Publication date: July 18, 2013Applicant: SCHULER PRESSEN GMBHInventors: DIETMAR SCHOELLHAMMER, Martin Schmeink, Andreas Dangelmayr, Hans Hofele, Juergen Fahrenbach
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Patent number: 8336361Abstract: In an apparatus and a method for producing diffraction- and interference-active structures by micro-pattern stamping a metal object, a micro-stamping arrangement is provided including a micro-stamping station with a micro-pattern stamp for generating a diffraction-active structure on the metal object, an application station for applying a protective layer to the diffraction-active structure and a macro-stamping station for applying a macroscopic image relief over the diffraction active structure while it is protected by the protective layer.Type: GrantFiled: September 15, 2009Date of Patent: December 25, 2012Assignee: Schuler Pressen GmbH & Co. KGInventor: Jürgen Fahrenbach
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Patent number: 8302517Abstract: To increase the cutting quality and to improve the operation of a press, in particular in punching high-strength martensitic materials or when punching thick sheet metal, a sheet metal holding device is provided for securely clamping the respective workpiece during the punching operation. The clamping force is increased to 40% or more of the ram force. The force exerted by the sheet metal holding device during the penetration of the workpiece can be further increased. The increase in the clamping force preferably takes place in a controlled manner as a function of the press angle.Type: GrantFiled: November 6, 2006Date of Patent: November 6, 2012Assignee: Schuler Pressen GmbH & Co. KGInventor: Juergen Fahrenbach
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Patent number: 8156780Abstract: In a method of cutting high-tensile workpieces, in particular sheet metals of martensite steel, the workpiece is subjected to a bending stress prior and during a shearing process. The bending stress causes a substantial component of a tensile force transverse to a desired cutting contour. Tensile stresses are superimposed to the shearing stresses, which favor the beginning of the workpiece separation. The bending stress is preferably selected so that the resulting tensile stress exists at a side facing the cutting tool.Type: GrantFiled: May 12, 2005Date of Patent: April 17, 2012Assignee: nanoferenz GmbHInventors: Stefan Fellenberg, Juergen Fahrenbach, Hans-Joerg Schaller