Patents Assigned to EHV Systems, Inc.
  • Battery gassing detector
    Patent number: 4366431
    Abstract: A gassing detector for use in modifying the charge rate in charging circuits for liquid electrolyte secondary cells. A light is reflected from the surface of the electrolyte into a photodetector. A discriminator circuit distinguishes the pulses in the photodetector output characteristic of the rippling caused by gassing of the cell and produces a signal to cause the charger to reduce the charge rate.
    Type: Grant
    Filed: December 3, 1980
    Date of Patent: December 28, 1982
    Assignee: EHV Systems, Inc.
    Inventor: John Santini