Patents by Inventor Richard Halliday

Richard Halliday 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).

  • Ratiometric AC wire tracer
    Patent number: 7671576
    Abstract: An implementation of an apparatus and method for sensing electrical wiring, for example, hidden behind a surface such as a wall is provided. The apparatus and method use multiple sensor signals, which may measure electric fields or changes in a dielectric. Pairs of signals are combined and compared to a sensed reference signal. Multiple sensors help in determining a direction or gradient to electrical wiring. Combining or averaging sensed signal before comparing the combined signal to a reference single helps to make the detection of electrical wiring less dependent on the relative orientation between the sensor and the electrical wiring.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: March 2, 2010
    Inventors: Charles E. Heger, Richard Halliday
  • RATIOMETRIC AC WIRE TRACER
    Publication number: 20090224747
    Abstract: An implementation of an apparatus and method for sensing electrical wiring, for example, hidden behind a surface such as a wall is provided. The apparatus and method use multiple sensor signals, which may measure electric fields or changes in a dielectric. Pairs of signals are combined and compared to a sensed reference signal. Multiple sensors help in determining a direction or gradient to electrical wiring. Combining or averaging sensed signal before comparing the combined signal to a reference single helps to make the detection of electrical wiring less dependent on the relative orientation between the sensor and the electrical wiring.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 10, 2009
    Applicant: Zircon Corporation
    Inventors: Charles E. Heger, Richard Halliday