Patents by Inventor Rolf Strempel

Rolf Strempel 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
    Patent number: 9543096
    Abstract: The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption according to the preamble of the first patent claim. The general inventive concept lies in actuating both the selector contact unit and the switching means for uninterrupted load switching by means of a common motor drive without an energy store being connected therebetween.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: January 10, 2017
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Alfred Bieringer, Christian Hammer, Martin Pankofer, Rolf Strempel, Andreas Stocker
  • Distribution transformer for voltage regulation of local distribution networks
    Patent number: 9406434
    Abstract: The invention relates to a distribution transformer having a tap-changing device for no-break switching between different winding taps of a distribution transformer. The general inventive concept consists in actuating both the selector contact unit and the switching means for no-break load switching by means of a common motor drive without interposition of an energy store.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: August 2, 2016
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Alfred Bieringer, Christian Hammer, Martin Pankofer, Rolf Strempel, Andreas Stocker
  • ON-LOAD TAP CHANGER
    Publication number: 20150303006
    Abstract: The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption according to the preamble of the first patent claim. The general inventive concept lies in actuating both the selector contact unit and the switching means for uninterrupted load switching by means of a common motor drive without an energy store being connected therebetween.
    Type: Application
    Filed: March 25, 2013
    Publication date: October 22, 2015
    Inventors: Alfred BIERINGER, Christian HAMMER, Rolf STREMPEL
  • ON-LOAD TAP CHANGER
    Publication number: 20150034462
    Abstract: The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption according to the preamble of the first patent claim. The general inventive concept lies in actuating both the selector contact unit and the switching means for uninterrupted load switching by means of a common motor drive without an energy store being connected therebetween.
    Type: Application
    Filed: March 25, 2013
    Publication date: February 5, 2015
    Inventors: Alfred Bieringer, Christian Hammer, Rolf Strempel
  • DISTRIBUTION TRANSFORMER FOR VOLTAGE REGULATION OF LOCAL DISTRIBUTION NETWORKS
    Publication number: 20150028978
    Abstract: The invention relates to a distribution transformer having a tap-changing device for no-break switching between different winding taps of a distribution transformer. The general inventive concept consists in actuating both the selector contact unit and the switching means for no-break load switching by means of a common motor drive without interposition of an energy store.
    Type: Application
    Filed: March 25, 2013
    Publication date: January 29, 2015
    Inventors: Alfred Bieringer, Christian Hammer, Martin Pankofer, Rolf Strempel, Andreas Stocker
  • ON-LOAD TAP CHANGER
    Publication number: 20150027989
    Abstract: The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption according to the preamble of the first patent claim. The general inventive concept lies in actuating both the selector contact unit and the switching means for uninterrupted load switching by means of a common motor drive without an energy store being connected therebetween.
    Type: Application
    Filed: March 25, 2013
    Publication date: January 29, 2015
    Inventors: Alfred Bieringer, Christian Hammer, Martin Pankofer, Rolf Strempel, Andreas Stocker