Patents Assigned to La General de Fluides Geflu
  • Ionic measuring device
    Patent number: 4127029
    Abstract: A device for measuring the mass flow or speed of a gas in a pipe comprising a first annular insulating member which supports an ionic source electrode, a second annular insulating member spaced from the first element in the flow direction, the second member supporting "transparent" and collecting electrodes which are insulated from each other and from the source electrode, and a grounded conducting guard ring located between the first and second members which prevents surface currents from flowing between the first and second members.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: November 28, 1978
    Assignee: La General de Fluides Geflu
    Inventor: Fernand R. C. Murtin