Patents by Inventor Christian Hurm

Christian Hurm 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).

  • On-load tap changer and method of and system for operating same
    Patent number: 10483879
    Abstract: A load stepping switch (1) for uninterrupted changeover between winding taps (n, n+1) on a control winding (20) comprises —a changeover switch (2) that comprises a first, second and third changeover contact (2.1, 2.2, 2.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: November 19, 2019
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Alfred Bieringer, Christian Hammer, Christian Hurm, Andreas Sachsenhauser
  • Switching system with preselector
    Patent number: 10153101
    Abstract: The invention relates to a switching arrangement (15) with a pre-selector (28) for a power transformer (10, 40) which has multiple windings (12, 14). The pre-selector is designed to optionally connect at least one first winding (12) to one of the two end contacts (30, 32) of at least one second winding (14). At least one first switch is arranged in the connection between the pre-selector (28) and the first winding (12), thereby allowing the pre-selector to be switched in an arc-free manner and thus in a gas-free manner as well.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: December 11, 2018
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Uwe Kaltenborn, Thomas Strof, Christian Hurm, Anatoli Saveliev, Gerhard Baeuml, Alfred Bieringer, Eduard Zerr, Wolfgang Albrecht, Martin Hausmann, Andreas Stocker
  • Switching system with preselector
    Patent number: 9984833
    Abstract: The invention relates to a step switch, comprising a pre-selector and a fine selector. The invention is characterized in that the step switch has a connection (36) between the pre-selector and the fine selector (18), at least one coupling switch (38) being arranged in said connection. A pre-selector can be switched in a largely gas-free manner by means of said switchable connection with the aid of the fine selector.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 29, 2018
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Uwe Kaltenborn, Thomas Strof, Christian Hurm, Anatoli Saveliev, Gerhard Baeuml, Alfred Bieringer, Eduard Zerr, Wolfgang Albrecht, Martin Hausmann, Andreas Stocker
  • ON-LOAD TAP CHANGER AND METHOD OF AND SYSTEM FOR OPERATING SAME
    Publication number: 20180069492
    Abstract: A load stepping switch (1) for uninterrupted changeover between winding taps (n, n+1) on a control winding (20) comprises—a changeover switch (2) that comprises a first, second and third changeover contact (2.1, 2.2, 2.
    Type: Application
    Filed: April 13, 2016
    Publication date: March 8, 2018
    Inventors: Alfred BIERINGER, Christian HAMMER, Christian HURM, Andreas SACHSENHAUSER
  • SWITCHING SYSTEM WITH PRESELECTOR
    Publication number: 20160211090
    Abstract: The invention relates to a switching arrangement (15) with a pre-selector (28) for a power transformer (10, 40) which has multiple windings (12, 14). The pre-selector is designed to optionally connect at least one first winding (12) to one of the two end contacts (30, 32) of at least one second winding (14). At least one first switch is arranged in the connection between the preselector (28) and the first winding (12), thereby allowing the pre-selector to be switched in an arc-free manner and thus in a gas-free manner as well.
    Type: Application
    Filed: September 26, 2014
    Publication date: July 21, 2016
    Inventors: Uwe KALTENBORN, Thomas STROF, Christian HURM, Anatoli SAVELIEV, Gerhard BAEUML, Alfred BIERINGER, Eduard ZERR, Wolfgang ALBRECHT, Martin HAUSMANN, Andreas STOCKER
  • SWITCHING SYSTEM WITH PRESELECTOR
    Publication number: 20160211089
    Abstract: The invention relates to a step switch, comprising a preselector and a fine selector. The invention is characterized in that the step switch has a connection (36) between the pre-selector and the fine selector (18), at least one coupling switch (38) being arranged in said connection. A pre-selector can be switched in a largely gas-free manner by means of said switchable connection with the aid of the fine selector.
    Type: Application
    Filed: September 26, 2014
    Publication date: July 21, 2016
    Inventors: Uwe KALTENBORN, Thomas STROF, Christian HURM, Anatoli SAVELIEV, Gerhard BAEUML, Alfred BIERINGER, Eduard ZERR, Wolfgang ALBRECHT, Martin HAUSMANN, Andreas STOCKER
  • ON-LOAD TAP CHANGER WITH CONNECTION TO OIL RESERVOIR OF A TRANSFORMER
    Publication number: 20150325387
    Abstract: Disclosed is an on-load tap changer comprising a connection to an insulating liquid of a transformer. The on-load tap changer in a housing (9) and the transformer are in the transformer tank (7) and are surrounded by insulating liquid (6). At least one opening (10) is formed in the housing base (9B) and/or housing cover (9M), said opening providing a fluidic connection between the insulating liquid in the transformer tank and the insulating liquid in the housing.
    Type: Application
    Filed: November 27, 2013
    Publication date: November 12, 2015
    Inventors: Dieter DOHNAL, Rainer FROTSCHER, Alfred BIERINGER, Christian HURM
  • DRIVE FOR A TAP CHANGER
    Publication number: 20150022294
    Abstract: The invention relates to a drive unit for a step switch for actuating switch contacts. The problem addressed by the invention is that of providing a drive unit for a step switch which is arranged closer to the step switch, guarantees a fast and safe actuation of the step switch and also has a compact design. The problem is solved by a drive unit which consists of a lift magnet arranged directly on the switch contact, which opens or closes the switch contact by applying a voltage.
    Type: Application
    Filed: January 15, 2013
    Publication date: January 22, 2015
    Inventors: Christian Hurm, Karsten Viereck