Patents by Inventor Douglas R. Maure

Douglas R. Maure 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).

  • Drive mechanism nuclear reactor control rod
    Patent number: 4125432
    Abstract: An improved method and apparatus for operating magnetic stepping-type mechanisms. The current flowing in the coils of magnetic stepping-type mechanisms of the kind, for instance, that are used in control-element drive mechanisms is sensed and used to monitor operation of the mechanism. Current waveforms that characterize the motion of the mechanism are used to trigger changes in drive voltage and to verify that the drive mechanism is operating properly. In addition, incipient failures are detected through the observation of differences between the observed waveform and waveforms that characterize proper operation.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: November 14, 1978
    Assignee: Combustion Engineering, Inc.
    Inventors: James G. Brooks, Jr., Douglas R. Maure, Christoffel H. Meijer