Patents by Inventor Eva Weatherall

Eva Weatherall 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).

  • Measurement of particle charge
    Patent number: 10429347
    Abstract: A method of determining a charge of at least one test particle (as herein defined), comprising: applying one of an electric current or a voltage across an aperture connecting two chambers, whereby the chambers are at least partially filled with electrolyte and whereby the at least one test particle is suspended in the electrolyte of at least one of the chambers; measuring a value indicative of the other of the electric current or voltage across the aperture; determining a time interval between a first and a second point in time, the second point in time corresponding to a point in time when the measured current or voltage has reached a specific proportion of the measured current or voltage at the first point in time; and determining the charge of the at least one test particle by: determining a value indicative of an electrical velocity component of a total velocity of at least one calibration particle having a known charge, taking into account that the total velocity of the at least one calibration particle
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 1, 2019
    Assignee: IZON SCIENCE LIMITED
    Inventors: Benjamin Mark Glossop, Robert Vogel, Eva Weatherall, Martin David Jones
  • MEASUREMENT OF PARTICLE CHARGE
    Publication number: 20160223492
    Abstract: A method of determining a charge of at least one test particle (as herein defined), comprising: applying one of an electric current or a voltage across an aperture connecting two chambers, whereby the chambers are at least partially filled with electrolyte and whereby the at least one test particle is suspended in the electrolyte of at least one of the chambers; measuring a value indicative of the other of the electric current or voltage across the aperture; determining a time interval between a first and a second point in time, the second point in time corresponding to a point in time when the measured current or voltage has reached a specific proportion of the measured current or voltage at the first point in time; and determining the charge of the at least one test particle by: determining a value indicative of an electrical velocity component of a total velocity of at least one calibration particle having a known charge, taking into account that the total velocity of the at least one calibration particle
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Inventors: Benjamin Mark Glossop, Robert Vogel, Eva Weatherall, Martin David Jones