Patents by Inventor Christoph Leifer

Christoph Leifer 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).

  • Printed circuit board-based current sensor
    Patent number: 6731193
    Abstract: The object of the invention is to provide a slotted current acquisition coil according to the Rogowski principle in which the printed circuit board base of the measuring coil can be opened to insert an electrical conductor to be measured without having to interrupt the latter. To this end, the two printed circuit board segments linked together by a hinge are opened. Twisting a single-piece printed circuit board also opens the arrangement for inserting the conductor to be measured.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: May 4, 2004
    Assignee: Phoenix Contact GmbH & Co. KG
    Inventors: Heinz W. Meier, Klaus Brand, Klaus Eisert, Christoph Leifer
  • Switch cabinet
    Patent number: 6631076
    Abstract: A switch cabinet (1) comprises a case (2), several modules (3) and a supporting rail (4), the modules (3) being secured on the supporting rail (4). The disclosed switch cabinet (1) is characterised in that it is designed in functional blocks and modules, so that all modules (3) required by a machine and only those modules are mounted in the switch cabinet case (2).
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: October 7, 2003
    Assignee: Phoenix Contact GmbH & Co.
    Inventors: Thorsten Behr, Roland Berg, Achim Fürhoff, Christoph Leifer, Heinz Reibke, Markus Rohs, Jürgen Weczerek
  • Printed circuit board-based current sensor
    Publication number: 20030137388
    Abstract: The object of the invention is to provide a slotted current acquisition coil according to the Rogowski principle in which the printed circuit board base of the measuring coil can be opened to insert an electrical conductor to be measured without having to interrupt the latter. To this end, the two printed circuit board segments linked together by a hinge are opened. Twisting a single-piece printed circuit board also opens the arrangement for inserting the conductor to be measured.
    Type: Application
    Filed: January 22, 2002
    Publication date: July 24, 2003
    Inventors: Heinz W. Meier, Klaus Brand, Klaus Eisert, Christoph Leifer
  • SWITCH CABINET
    Publication number: 20020089815
    Abstract: A switch cupboard (1) comprises a case (2), several modules (30 and a supporting rail (4), the modules (3) being secured on the supporting rail (4). The disclosed switch cupboard (1) is characterized in that it is designed in functional blocks and modules, so that all modules (3) required by a machine and only those modules are mounted in the switch cupboard case (2).
    Type: Application
    Filed: August 25, 1999
    Publication date: July 11, 2002
    Inventors: Thorsten Behr, Ronald Berg, Achim Furhoff, Christoph Leifer, Heinz Reibke, Markus Rohs, Jurgen Weczerek