Patents by Inventor Pierre Haller

Pierre Haller 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).

  • Self-powered neutron detector for external reactor instrumentation
    Patent number: 3986032
    Abstract: A self-powered neutron detector comprises a tubular collector, a tubular emitter surrounding this collector, and a tubular collector surrounding this emitter, with electrical insulation between the emitter and the two collectors. The collectors are electrically interconnected. This arrangement produces a detector suitable for external instrumentation on the outside of the pressure vessel of a reactor, for instance, a pressurized-water reactor.
    Type: Grant
    Filed: December 3, 1974
    Date of Patent: October 12, 1976
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventors: Erich Klar, Hans-Gerd Spillekothen, Pierre Haller
  • Neutron detector cable monitoring
    Patent number: 3982131
    Abstract: In a neutron detector connected by a cable with a current amplifier for the signal based on (n,e)-processes, any change in the insulation resistance of the cable is monitored by means of an a-c voltage which is superimposed on the offset voltage of the amplifier. The resistance-dependent a-c variable at the output of the amplifier, is used to make a limit indicator respond via a connected filter. The invention is of importance particularly for monitoring the internal core instrumentation of pressurized-water reactors.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: September 21, 1976
    Assignee: Kraftwerk Union Aktiengesellschaft
    Inventor: Pierre Haller