Patents by Inventor Robby F. Hausegger

Robby F. Hausegger 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).

  • Watthour meter with temperature compensation for wye connected systems
    Patent number: 4998061
    Abstract: A watthour meter, preferably for a wye connected load, includes a current transformer for sensing the load current, a resistive voltage divider network for sensing the line voltage, and a measuring circuit for calculating the AC electrical energy consumption of the load based on the sensed load current and line voltage. The load consumption calculations are performed using a Mark-Space oscillator and amplitude modulator in the watt transducer chip. Reduced voltage from the resistive voltage divider network is fed into the input junction of the Mark-Space oscillator. A feedback resistor is connected from the output junction to the input junction of the oscillator. The feedback resistor and the voltage divider network are mounted on the same thermally conductive substrate so that each are subject to the same thermal effects.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: March 5, 1991
    Assignee: Landis & Gyr Metering, Inc.
    Inventors: John T. Voisine, Robby F. Hausegger
  • Watthour meter for wye connected systems
    Patent number: 4896106
    Abstract: A watthour meter, preferably for a wye connected load, includes a current transformer for sensing the load current, a resistive voltage divider network for sensing the line voltage, and a measuring circuit for calculating the AC electrical energy consumption of the load based on the sensed load current and line voltage. The load consumption calculations are performed using a Mark-Space oscillator and amplitude modulator in the watt transducer chip. Reduced voltage from the resistive voltage divider network is fed into the input junction of the Mark-Space oscillator. A feedback resistor is connected from the output junction to the input junction of the oscillator. The feedback resistor and the voltage divider network are mounted on the same thermally conductive substrate so that each are subject to the same thermal effects.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: January 23, 1990
    Assignee: Landis & Gyr Metering, Inc.
    Inventors: John T. Voisine, Robby F. Hausegger