Patents Represented by Law Firm Parks and Assoc.
  • Ultra sensitive leak detection
    Patent number: 5086644
    Abstract: An apparatus for measuring very small flows into and out of large tanks comprising a reference vessel substantially vertical and proximate the tank to be metered and connected in fluid communication with the tank and having transducers located between the connection point and the surface of the fluid in the reference vessel for converting the mass of fluid flow there through to an electrical signal readable into equivalent volume change in the main tank and a meter for reading the electrical signal.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: February 11, 1992
    Assignee: Environmental Protection Technology, Inc.
    Inventor: Robert E. Schendel