Patents Examined by William W. Shoop
  • RMS Controlled load tap changing transformer
    Patent number: 4323838
    Abstract: A circuit for controlling a load tap changing transformer including a true RMS to D.C. converter for regulating the output of the transformer as a function of the RMS voltage.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: April 6, 1982
    Assignee: Beckwith Electric Co., Inc.
    Inventor: Robert D. Pettigrew