Patents by Inventor Sten Ritschel

Sten Ritschel 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).

  • Shut-off valve for integration into a gas meter
    Patent number: 10502323
    Abstract: A shut-off valve for integration into an intelligent gas meter for residential or industrial gas supply, has an inlet, an outlet and a valve seat having a lip seal. A shut-off body is longitudinally displaceable with respect to the valve by a motor driven transmission, using a nut-threaded-spindle drive, to engage with or disengage from, the seal to open or close the valve. The transmission of the valve remains largely unbiased in the closed state while maintaining the gas-tightness of the valve.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 10, 2019
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Sten Waehrisch, Sten Ritschel, Marcus Herrmann
  • Shut-off Valve for Integration into a Gas Meter
    Publication number: 20160369898
    Abstract: A shut-off valve for integration into an intelligent gas meter for residential or industrial gas supply, has an inlet, an outlet and a valve seat having a lip seal. A shut-off body is longitudinally displaceable with respect to the valve by a motor driven transmission, using a nut-threaded-spindle drive, to engage with or disengage from, the seal to open or close the valve. The transmission of the valve remains largely unbiased in the closed state while maintaining the gas-tightness of the valve.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Inventors: Sten Waehrisch, Sten Ritschel, Marcus Herrmann
  • Circuit arrangement for generating motor characteristic curves
    Patent number: 7492119
    Abstract: A circuit arrangement (1) for generating motor characteristic curves, in particular for stabilizing the pull-out torque of a two-phase synchronous motor (2) by using a series-connected element (14). The series-connected element (14) is connected between a first line conductor (12.1) formed as a neutral conductor and the common phase (11) of the synchronous motor (2), and a second line conductor (12.2) implemented as a conductor is connected with a phase of the synchronous motor (2).
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 17, 2009
    Assignee: Saia-Burgess Dresden GmbH
    Inventor: Sten Ritschel
  • CIRCUIT ARRANGEMENT FOR GENERATING MOTOR CHARACTERISTIC CURVES
    Publication number: 20070236165
    Abstract: A circuit arrangement (1) for generating motor characteristic curves, in particular for stabilizing the pull-out torque of a two-phase synchronous motor (2) by using a series-connected element (14). The series-connected element (14) is connected between a first line conductor (12.1) formed as a neutral conductor and the common phase (11) of the synchronous motor (2), and a second line conductor (12.2) implemented as a conductor is connected with a phase of the synchronous motor (2).
    Type: Application
    Filed: April 3, 2007
    Publication date: October 11, 2007
    Applicant: SAIA-BURGESS DRESDEN GMBH
    Inventor: Sten Ritschel