Patents by Inventor Martin G. Clarke

Martin G. Clarke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Means of correcting a measurement of a property of a material with a sensor that is affected by a second property of the material
    Patent number: 6483325
    Abstract: A sensor apparatus and electrode configuration within the sensor apparatus for measuring electrical characteristics of an aqueous fibrous composition. The electrode configuration includes an elongated ground electrode and at least one segmented electrode to form an array of measurement electrode cells. The electrode configuration further includes an array of reference electrode cells formed by a plurality of reference electrodes built into the array of measurement electrode cells. The measurement electrode cells and reference electrode cells have a different sensitivity to water weight of the aqueous fibrous composition and the same sensitivity to conductivity of the aqueous fibrous composition. The measurement apparatus obtains simultaneous resistive measurements from both measurement and reference cells and determines the ratio of the measurements such that the affects from conductivity is canceled out of the measurement ratio.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: November 19, 2002
    Assignee: Honeywell International Inc.
    Inventors: Lee Chase, John D. Goss, Claud Hagart-Alexander, Martin G. Clarke, Graham V. Walford, Raymond Yu
  • Means of correcting a measurement of a property of a material with a sensor that is affected by a second property of the material
    Patent number: 6281689
    Abstract: A sensor apparatus and electrode configuration within the sensor apparatus for measuring electrical characteristics of an aqueous fibrous composition. The electrode configuration includes an elongated ground electrode and at least one segmented electrode to form an array of measurement electrode cells. The electrode configuration further includes an array of reference electrode cells formed by a plurality of reference electrodes built into the array of measurement electrode cells. The measurement electrode cells and reference electrode cells have a different sensitivity to water weight of the aqueous fibrous composition and the same sensitivity to conductivity of the aqueous fibrous composition. The measurement apparatus obtains simultaneous resistive measurements from both measurement and reference cells and determines the ratio of the measurements such that the affects from conductivity is canceled out of the measurement ratio.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: August 28, 2001
    Assignee: Honeywell-Measurex Corporation
    Inventors: Lee Chase, John D. Goss, Claud Hagart-Alexander, Martin G. Clarke, Graham V. Walford, Raymond Yu