Patents Assigned to Marcum Fuel Systems, Inc.
  • Density compensated gas flow meter
    Patent number: 5564306
    Abstract: A mass flow meter for a gas dispenser includes apparatus and method for determining specific heat ratio of the gas as a function of two pressure measurements in relation to a nozzle and for determining mass flow rate as a function of the specific heat ratio, the two pressure measurements in relation to the nozzle, and a density measurement of the gas.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: October 15, 1996
    Assignee: Marcum Fuel Systems, Inc.
    Inventor: Charles E. Miller