Patents by Inventor Luder Warnken

Luder Warnken 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).

  • Patent number: 5996399
    Abstract: The invention teaches a method for using a test liquid to simulate the effects of a coolant condensate on an electrical power station component in the event of an accident with an uncontrolled escape of coolant condensate, in which a film is formed on a surface of the power station component and then a resistance test of the power station component is performed. A test liquid formed of polyglycol ether which has a content of between 0.01 and 0.5 weight % dissolved in deionized water, a conductivity between 1 and 6 .mu.S/cm at room temperature, and a surface tension up to 50 mN/m at room temperature is provided. A power station component is coated with a film of the test liquid. A resistance check of the coated power station component is then performed.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: December 7, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Frantisek Klecka, Christian Leder, Rainer Wulff, Luder Warnken
  • Patent number: 5773982
    Abstract: In an accident involving the uncontrolled escape of coolant, a condensate film forms on the power station components. Due to deposited dirt it is conductive, and if the insulation has aged it can cause electrical function defects. That situation is simulated by spraying a test liquid, having a wetting power (surface tension) and a conductivity which correspond to the coolant condensate, onto the electrical power station components. The testing can be carried out on a routine basis at normal pressure and normal temperature during ongoing reactor operation.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: June 30, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Eckehard Wolf, Luder Warnken, Frantisek Klecka, Hartmut Schulz, Willi Siegler, Anton Knapp, Barbara Richter