Patents by Inventor Jan Slezak

Jan Slezak 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).

  • Capacitive level sensor with a plurality of segments comprising each a capacitor and a circuit
    Patent number: 8176778
    Abstract: A capacitive level sensor comprises a probe which is longitudinally segmented into a plurality of segments. Each segment comprises an electrode forming an electrical capacitor to a common ground electrode. Each electrode is connected to a measuring circuit via an associated one of a plurality of controllable switches. A control means controls said switches to successively and separately connect the capacitors to the measuring circuit. To simplify the design and manufacture of the level sensor, the controllable switches are individually arranged in the associated segments of the probe, and the control means is subdivided into control units respectively arranged in the segments and connected to a single control line.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: May 15, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kees Schoenmakers, Jan Slezak
  • Capacitive level sensor with a Plurality of Segments Comprising Each a Capacitor and a Circuit
    Publication number: 20090320587
    Abstract: A capacitive level sensor comprises a probe which is longitudinally segmented into a plurality of segments. Each segment comprises an electrode forming an electrical capacitor to a common ground electrode. Each electrode is connected to a measuring circuit via an associated one of a plurality of controllable switches. A control means controls said switches to successively and separately connect the capacitors to the measuring circuit. To simplify the design and manufacture of the level sensor, the controllable switches are individually arranged in the associated segments of the probe, and the control means is subdivided into control units respectively arranged in the segments and connected to a single control line.
    Type: Application
    Filed: July 11, 2006
    Publication date: December 31, 2009
    Applicant: SIEMENS MILLTRONICS PROCESS INSTRUMENTS, INC.
    Inventors: Kees Schoenmakers, Jan Slezak