Patents by Inventor Ulrich Sielemann

Ulrich Sielemann 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).

  • Position-measuring device for fluidic cylinder-and-piston arrangements
    Patent number: 7263781
    Abstract: A position-measuring device for fluidic cylinder-and-piston arrangements having at least one Hall sensor, preferably arranged in the area of the cylinder wall, especially in a cylinder wall, and a magnetic region, arranged in the piston. At least one Hall sensor array has at least two Hall sensors spaced one from the other in the direction of movement of the piston. One coil is provided whose magnetic field permits the switching points of the Hall sensors to be adjusted in response to the coil current.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: September 4, 2007
    Assignee: IMI Norgren-Herion Fluidtronic GmbH & Co KG
    Inventor: Ulrich Sielemann
  • Electric control system
    Publication number: 20050096756
    Abstract: An electric control system including at least one electric module for the control of at least one electric consumer. The at least one electric module has an arrangement for connection to other electric modules that includes at least one optoelectronic transmitter and receiver. Each electric module has a circuit arrangement for processing and routing the optoelectronic signal and for controlling the electric consumer.
    Type: Application
    Filed: October 29, 2004
    Publication date: May 5, 2005
    Inventors: Erhard Quast, Ulrich Sielemann
  • Position-measuring device for fluidic cylinder-and-piston arrangements
    Publication number: 20040226183
    Abstract: A position-measuring device for fluidic cylinder-and-piston arrangements having at least one Hall sensor, preferably arranged in the area of the cylinder wall, especially in a cylinder wall, and a magnetic region, arranged in the piston. At least one Hall sensor array has at least two Hall sensors spaced one from the other in the direction of movement of the piston. One coil is provided whose magnetic field permits the switching points of the Hall sensors to be adjusted in response to the coil current.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 18, 2004
    Applicant: IMI Norgren-Herion Fluidtronic GmbH & Co. KG
    Inventor: Ulrich Sielemann