Patents Examined by Patrick T. Salce
  • Harmonic distortion attenuator
    Patent number: 4181921
    Abstract: A harmonic distortion attenuator in an AC power supply for reducing electrical energy consumption through the suppression of transient voltages in power supply lines or the like connected to the circuitry wherein a threshold voltage clamp, responsive to a transient, closes an electrical path between the power supply lines. A triac or current responsive device is provided in parallel with the threshold voltage clamp to shunt the current flow from the clamp when the current through the clamp rises above a predetermined limit.
    Type: Grant
    Filed: June 16, 1978
    Date of Patent: January 1, 1980
    Assignee: W. N. Phillips, Inc.
    Inventors: Robert E. Taylor, Paul J. Lee