Patents by Inventor Friedrich Löbner

Friedrich Löbner 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).

  • Publication number: 20160111234
    Abstract: An electric switching device contains a first contact piece and a second contact piece. The first contact piece can be driven by a first kinematic chain. The second contact piece can be driven by a second kinematic chain. The electric switching device contains a first switching point and a second switching point, which are electrically connected in series, the first contact piece being associated with the first switching point and the second contact piece with the second switching point.
    Type: Application
    Filed: May 2, 2014
    Publication date: April 21, 2016
    Inventors: ROBERT GRUENLER, VOLKER LEHMANN, FRIEDRICH LOEBNER, ANDRZEJ NOWAKOWSKI
  • Publication number: 20150371797
    Abstract: A switching arrangement has a first contact set and a second contact set which can be moved with respect to the first contact set, and an insulating nozzle arrangement. The insulating nozzle arrangement is supported on the first contact set which includes a first arcing contact piece. The first arcing contact piece can be moved with respect to the insulating nozzle arrangement.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 24, 2015
    Inventors: RADU-MARIAN CERNAT, MARTIN KREHNKE, VOLKER LEHMANN, FRIEDRICH LOEBNER, ANDRZEJ NOWAKOWSKI
  • Publication number: 20150371796
    Abstract: A switching device arrangement has a first contact set and a second contact set. The first contact set includes a first electric arc contact element and a first nominal current contact element. The first nominal current contact element can be moved relative to the first electric arc contact element. A first transmission is introduced in a kinematic chain in order to generate a relative movement of the first nominal current contact element and the first electric arc contact element. The first transmission is operationally connected between a stationary counter bearing and the first electric arc contact piece.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 24, 2015
    Inventors: RADU-MARIAN CERNAT, MARTIN KREHNKE, VOLKER LEHMANN, FRIEDRICH LOEBNER, ANDRZEJ NOWAKOWSKI
  • Publication number: 20150364280
    Abstract: A switching device has a first contact side with a first nominal current contact piece and a first electric arc contact piece, and a second contact side with a second electric arc contact piece and a second nominal current contact piece. In order to generate a relative movement between the first and second contact sides, the first electric arc contact piece and the first nominal current contact piece as well as the second electric arc contact piece and the second nominal current contact piece are driven. For switching, the first contact piece is moved by a movement profile and the first nominal current contact piece is moved by a movement profile that differs from the movement profile of the first electric arc contact piece. A movement profile of the second electric arc contact piece and the second nominal current contact piece deviate from each other.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 17, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: RADU-MARIAN CERNAT, MARTIN KREHNKE, VOLKER LEHMANN, FRIEDRICH LOEBNER, ANDRZEJ NOWAKOWSKI
  • Publication number: 20150162149
    Abstract: A switching configuration includes a first switching contact set having a rated current contact piece and an arcing contact piece. The arcing contact piece and the rated current contact piece of the first switching contact set are movable relative to one another through a transmission mechanism. The arcing contact piece is supported by a support element on a contact carrier of the rated current contact piece. The transmission mechanism has a transmission mechanism chassis which is supported, particularly directly, on the contact carrier.
    Type: Application
    Filed: June 19, 2013
    Publication date: June 11, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Martin Krehnke, Friedrich Loebner
  • Publication number: 20150014131
    Abstract: An electric switching device includes first and second switch contact pieces. The first switch contact piece has a guide portion. The first switch contact piece is connected to an actuating unit or drive device by a kinematic chain. The guide portion of the first switch contact piece is guided on a guide path. The guide portion and the guide path each have a contact or bearing surface and at least one of the contact or bearing surfaces is convexly curved.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 15, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Joachim Gericke, Robert Gruenler, Martin Krehnke, Volker Lehmann, Friedrich Loebner
  • Patent number: 7650816
    Abstract: On a high-voltage power switch there is provided a shaft for transmitting a rotary motion through a wall. A deflection lever is disposed on the shaft. The shaft and the deflection lever are part of a kinematic chain. For adjustment of the deflection lever in its position on the shaft, the deflection lever has an adjusting device.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: January 26, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Chyla, Friedrich Löbner
  • Publication number: 20050016962
    Abstract: The aim of the invention is to be able to arrange a switch mechanism comprising a hydraulic damping element (7) in two different assembly positions on a switch. To this end, the hydraulic damping element (7) must demonstrate a full functional capacity in both assembly positions. In order to ensure the same functional capacity in a first, for example, vertical assembly position and in a second, for example, horizontal assembly position, the damping element (7) is arranged in a position which deviates by 45° from the vertical.
    Type: Application
    Filed: October 4, 2001
    Publication date: January 27, 2005
    Inventors: Friedrich Loebner, Gunnar Lutzke
  • Patent number: 6730871
    Abstract: A hollow contact tube is provided in a compressed gas-blast circuit breaker in order to improve dielectric properties. The outlet (6) of said contact tube cooperates with a deflecting body (9) and is surrounded by a fixed substantially hollow cylindrical flow director (8).
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: May 4, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventor: Friedrich Loebner
  • Patent number: 6646850
    Abstract: A high-voltage power breaker includes two arcing contact pieces which are separated from one another when disconnected and between which an arc is struck in an arcing area. The arcing area is filled with a quenching gas, where the quenching gas has been heated by the arc flowing out from a constriction point of an insulating nozzle. The insulating nozzle surrounds the arcing area, through at least one outlet flow channel which has a number of areas which the quenching gas passes through successively. The first area which faces the constriction point of the nozzle has a specific flow resistance which is less than that of the constriction point. The first area in the outlet flow direction of the quenching gas is followed by at least one second area, one third area and one fourth area. The specific flow resistance of the second and fourth areas are each greater than the specific flow resistance of the immediately preceding area in the outlet flow direction.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: November 11, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralf Bergmann, Hold Dienemann, Joerg Hagen, Hartmut Knobloch, Volker Lehmann, Friedrich Loebner, Michael Punger, Claudia Wiesinger
  • Patent number: 6207917
    Abstract: A compressed gas-blast is described having a first, actuatable arcing contact, a second, stationary arcing contact, a rated current path running concentrically to the contacts, as well as having a compression device, at least the first, actuatable arcing contact being supported by a switching tube. A discharge volume provided at the outlet of the switching tube is separated from an intake area by a separating wall, the discharge volume is connected to the low-pressure chamber via discharge openings.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: March 27, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: Volker Lehmann, Friedrich Löbner