Patents Represented by Attorney, Agent or Law Firm Laurence A. Grennberg
  • Method and device for switching on a power switch arranged between capacitive elements
    Patent number: 7367302
    Abstract: The invention relates to a method and a device for switching on a power switch (S1, S2) arranged between capacitive elements (C1, DLC, B36) a choke (L) being connected in parallel to the switching contacts of the still open power switch (S1, S2). Said choke enables compensating currents to flow between the elements (C1, B36, DLC) to be interconnected and to decay before the power switch (S1, S2) is then closed in a de-energized manner.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: May 6, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stephan Bolz, Rainer Knorr, Günter Lugert
  • Method of checking a capacitive actuator
    Patent number: 6349705
    Abstract: A capacitive actuator is driven with a control signal st. The duration ti of actual actuator actuation is compared with the duration tst of the control signal st. Proper operation is determined, and the actuator is assumed to be operating correctly, if the measured duration ti is within a range determined by the duration tst of the control signal.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: February 26, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Richard Pirkl, Achim Przymusinski, Walter Schrod, Mark Elliott