Patents by Inventor Elliot T Gerard

Elliot T Gerard 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).

  • Electronic battery condition tester
    Patent number: 6768309
    Abstract: An electronic tester is disclosed that monitors the current capability of a storage battery without drawing heavy currents. It determines current capability from measurement of the battery's internal resistance is monitored in the conventional manner by drawing a small current load and observing the A.C. voltage generated at the battery terminals. The load circuit used here ensures that the current drawn is independent of battery resistance. The resistance signal is pocessed with a novel application of integrator circuitry to derive the battery's current capability.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: July 27, 2004
    Inventors: Leonard N Liebermann, Elliot T Gerard
  • Electronic battery condition tester
    Publication number: 20040100266
    Abstract: An electronic tester is disclosed that monitors the current capability of a storage battery without drawing heavy currents. It determines current capability from measurement of the battery's internal resistance. Internal resistance is monitored in the conventional manner by drawing a small current load and observing the A.C. voltage generated at the battery terminals. The load circuitry used here ensures that the current drawn is independent of battery resistance. The resistance signal is processed with a novel application of integrator circuitry to derive the battery's current capability.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Inventors: Leonard N. Liebermann, Elliot T. Gerard