Patents Assigned to Hunter Environmental Services, Inc.
  • Method for leakage measurement
    Patent number: RE31884
    Abstract: A method of high sensitivity for measuring leakage of liquid from a storage tank which comprises introducing a sensor into the liquid in the tank, the sensor being coupled to means for sensing displacement of mass, measuring the displacement over a known period of time and calculating the leakage rate. The sensor is designed to compensate for evaporative losses and temperature changes.
    Type: Grant
    Filed: August 5, 1982
    Date of Patent: May 14, 1985
    Assignee: Hunter Environmental Services, Inc.
    Inventors: William B. Hansel, Earl W. Smith