Patents by Inventor Gregor Wilhelm
Gregor Wilhelm 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: 11545313Abstract: A diverter switch is for an on-load tap-changer. The diverter switch includes: at least one vacuum interrupter; an actuating element, which is mechanically connected at a first end of the vacuum interrupter and has a roller at a second end; and an actuating body having a base body and having at least one cam. The vacuum interrupter is configured to be actuated via the actuating element as a result of the roller moving over the actuating body. At least one part of the cam has a higher strength than the base body.Type: GrantFiled: November 12, 2019Date of Patent: January 3, 2023Assignee: MASCHINENFABRIK REINHAUSEN GMBHInventors: Klaus Hoepfl, Silke Wrede, Gregor Wilhelm, Eduard Schmidt, Stefan Herold, Elke Wuersching
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Publication number: 20220044884Abstract: A diverter switch is for an on-load tap-changer. The diverter switch includes: at least one vacuum interrupter; an actuating element, which is mechanically connected at a first end of the vacuum interrupter and has a roller at a second end; and an actuating body having a base body and having at least one cam. The vacuum interrupter is configured to be actuated via the actuating element as a result of the roller moving over the actuating body. At least one part of the cam has a higher strength than the base body.Type: ApplicationFiled: November 12, 2019Publication date: February 10, 2022Inventors: Klaus Hoepfl, Silke Wrede, Gregor Wilhelm, Eduard Schmidt, Stefan Herold, Elke Wuersching
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Patent number: 11120962Abstract: A switch includes a diverter contact; a primary fixed contact; and a secondary fixed contact. The switch additionally includes a primary movable contact configured to be pivoted, relative to the diverter contact and the primary fixed contact, about a pivot axis between a first end position and a second end position. In the first end position, the primary movable contact bears by a first contact point against the diverter contact and by a second contact point against the primary fixed contact. The switch further includes a secondary movable contact configured to be pivoted, relative to the diverter contact and the secondary fixed contact, about the pivot axis between a first end position and a second end position. In the first end position the secondary movable contact bears by a third contact point against the diverter contact and by a fourth contact point against the secondary fixed contact.Type: GrantFiled: August 28, 2015Date of Patent: September 14, 2021Assignee: MASCHINENFABRIK REINHAUSEN GMBHInventors: Eduard Schmidt, Silke Wrede, Gregor Wilhelm, Christian Hammer
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Publication number: 20200168420Abstract: A switch includes a diverter contact; a primary fixed contact; and a secondary fixed contact. The switch additionally includes a primary movable contact configured to be pivoted, relative to the diverter contact and the primary fixed contact, about a pivot axis between a first end position and a second end position. In the first end position, the primary movable contact bears by a first contact point against the diverter contact and by a second contact point against the primary fixed contact. The switch further includes a secondary movable contact configured to be pivoted, relative to the diverter contact and the secondary fixed contact, about the pivot axis between a first end position and a second end position. In the first end position the secondary movable contact bears by a third contact point against the diverter contact and by a fourth contact point against the secondary fixed contact.Type: ApplicationFiled: August 28, 2015Publication date: May 28, 2020Inventors: Eduard Schmidt, Silke Wrede, Gregor Wilhelm, Christian Hammer
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Patent number: 10192693Abstract: An energy accumulator (15) for or in an on-load tap changer (10) comprises a motor (11) with an output shaft (12) and a load diverter switch (13) with an input shaft (14), comprising an elastic storage element (17); a transmission coupled to the storage element (17) and having an input hub (201) that can be rotationally fixed to the output shaft (12); an output hub (231) that can be rotationally fixed to the input shaft (14); and a variable transmission (20, 21) interposed between the input hub (201) and the storage element (17).Type: GrantFiled: March 2, 2016Date of Patent: January 29, 2019Assignee: MASCHINENFABRIK REINHAUSEN GMBHInventors: Stefan Herold, Klaus Hoepfl, Gregor Wilhelm, Abraham Ahmadi
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Publication number: 20180040434Abstract: An energy accumulator (15) for or in an on-load tap changer (10) comprises a motor (11) with an output shaft (12) and a load diverter switch (13) with an input shaft (14), comprising an elastic storage element (17); a transmission coupled to the storage element (17) and having an input hub (201) that can be rotationally fixed to the output shaft (12); an output hub (231) that can be rotationally fixed to the input shaft (14); and a variable transmission (20, 21) interposed between the input hub (201) and the storage element (17).Type: ApplicationFiled: March 2, 2016Publication date: February 8, 2018Inventors: Stefan HEROLD, Klaus HOEPEL, Gregor WILHELM, Abraham AHMADI
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Publication number: 20160343521Abstract: A holder (10) for at least one vacuum switching tube (11) of an on-load tap changer comprises: a base plate (12) that can be fastened to a frame of the on-load tap changer; a first sleeve (13), into which a first vacuum switching tube can be inserted, and that has two oppositely positioned ends, of which an outer end (16) that is remote from the base plate (12), can be connected with this vacuum switching tube (11), and an inner end (17) that is close to the base plate (12), is connected with the base plate (12); wherein: the first sleeve (13) completely surrounds or encloses at least a part of the first vacuum switching tube (11) or has a section (18) that completely surrounds or encloses at least a part of the first vacuum switching tube (11).Type: ApplicationFiled: January 20, 2015Publication date: November 24, 2016Inventors: Stefan HEROLD, Gregor WILHELM
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Patent number: 8869641Abstract: An indexing transmission for an on-load tap changer or a tap selector of a tapped transformer has a rotatable cam disk having an outer edge formed with a succession of convex and concave cam formations in regular succession and merging with one another, a crank transmission driving the cam disk, and a drive output disk acted on by the cam disk and having an outer edge. Engagement rollers rotatable on an end face of the drive output disk near the outer edge of the drive output disk roll on the outer edge of the cam disk. A switch shaft is rotationally fixed to the drive output disk such that the cam disk in cooperation with the engagement rollers of the drive output disk triggers a stepped rotation of the switch shaft through a defined step angle.Type: GrantFiled: February 23, 2011Date of Patent: October 28, 2014Assignee: Maschinenfabrik Reinhausen GmbHInventors: Klaus Hoepfl, Gregor Wilhelm
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Patent number: 8748758Abstract: The invention relates to an on-load tap changer having an energy storage device, by means of which an output shaft is rotatable in spurts. According to the invention, in addition to the actual energy storage spring or the actual energy storage springs, at least one further spring is provided, which absorbs/releases energy after the activation of the energy storage mechanism whereby the torque curve can be optimised.Type: GrantFiled: April 21, 2010Date of Patent: June 10, 2014Assignee: Maschinenfabrik Reinhausen GmbHInventors: Klaus Hoepfl, Gregor Wilhelm, Silke Wrede
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Publication number: 20130213776Abstract: The invention relates to a stepping switch (10) for switching among at least two winding taps (12, 14) of a step transformer (16) without interruption, said step transformer having a rotatable switching shaft (22), with which actuating elements (24) for a plurality of actuating phases for mechanical switching elements (MTF, TTF) or vacuum switching tubes (MSV, TTV) are associated.Type: ApplicationFiled: December 11, 2010Publication date: August 22, 2013Inventors: Klaus Hoepfl, Gregor Wilhelm, Silke Wrede
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Publication number: 20130199336Abstract: The invention relates to an indexing gear train (10) for an on-load tap changer or tap selector of a step transformer, wherein at least one cam disk (18; 20) driven by a crank mechanism (12) interacts with an out-put disk (22) having engagement elements (24) arranged on the output disk, the output disk being connected to a switch shaft (40) in a rotationally fixed manner, wherein the at least one cam disk (18; 20), in interaction with the engagement elements (24) of the output disk (22), triggers an incremental rotation of the switch shaft (40) by a defined increment angle. The engagement elements (24) are formed by rollers (26) rotatably supported on a flat side near the outer circumference of the disk (22). Said rollers roll with a corresponding engagement contour on the outer surface of the cam disk (18; 20), said engagement contour having convex and concave cam sections (30; 42) that regularly follow each other and transition into each other.Type: ApplicationFiled: February 23, 2011Publication date: August 8, 2013Inventors: Klaus Hoepel, Gregor Wilhelm
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Publication number: 20120103766Abstract: The invention relates to an on-load tap changer having an energy storage device, by means of which an output shaft is rotatable in spurts. According to the invention, in addition to the actual energy storage spring or the actual energy storage springs, at least one further spring is provided, which absorbs/releases energy after the activation of the energy storage mechanism, whereby the torque curve can be optimised.Type: ApplicationFiled: April 21, 2010Publication date: May 3, 2012Inventors: Klaus Hoepfl, Gregor Wilhelm, Silke Wrede
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Patent number: 7652218Abstract: The invention relates to an energy store for a load tap changer with a longitudinally movable lifting carriage and an also longitudinally movable snap-action carriage which follows the movement of the lifting carriage after being triggered and whose longitudinal movement is converted into a rotary movement of an output shaft that actuates the load tap changer. In order to do so, two rolls which are guided in an especially geometrically designed guide rail are disposed on the snap-action carriage. Only one of the two rolls is positively guided in the guide rail during the first part of each movement of the snap-action carriage while the other roll can be moved freely. The second roll that could previously be moved freely is then positively guided during the second part of the movement while the roll which was previously guided can be moved freely. The roll which was initially guided is positively guided once again during the third part of the movement.Type: GrantFiled: April 29, 2006Date of Patent: January 26, 2010Assignee: Maschinenfabrik Reinhausen GmbHInventors: Klaus Hoepfl, Gregor Wilhelm, Silke Wrede
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Publication number: 20090288934Abstract: The invention relates to an energy store for a load tap changer with a longitudinally movable lifting carriage and an also longitudinally movable snap-action carriage which follows the movement of the lifting carriage after being triggered and whose longitudinal movement is converted into a rotary movement of an output shaft that actuates the load tap changer. In order to do so, two rolls which are guided in an especially geometrically designed guide rail are disposed on the snap-action carriage. Only one of the two rolls is positively guided in the guide rail during the first part of each movement of the snap-action carriage while the other roll can be moved freely. The second roll that could previously be moved freely is then positively guided during the second part of the movement while the roll which was previously guided can be moved freely. The roll which was initially guided is positively guided once again during the third part of the movement.Type: ApplicationFiled: April 29, 2006Publication date: November 26, 2009Applicant: MASCHINENFABRIK REINHAUSEN GMBHInventors: Klaus Hoepfl, Gregor Wilhelm, Silke Wrede