Patents by Inventor Alexander J. Binnie

Alexander J. Binnie 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).

  • High voltage phasing detector
    Patent number: 5438255
    Abstract: A detector for determining the phase of high AC voltages comprises two inputs for connecting to respective probes which contact the conductors to be tested, a rectifier circuit to which the inputs are connected, a chain of capacitors arranged to be charged in series from the output of the rectifier circuit, an operational amplifier configured as a trip amplifier for providing an output signal when the output voltage of the rectifier exceeds a predetermined value, and a transistor for discharging the capacitors in parallel through a buzzer and a chain of light emitting diodes when the output signal is provided.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: August 1, 1995
    Assignee: Edgcumbe Instruments Limited
    Inventor: Alexander J. Binnie