Patents by Inventor Benjamin Ditch

Benjamin Ditch 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).

  • Characterization of mist sprays using a phase-doppler particle analyzer and an iso-kinetic sampling probe
    Patent number: 7181952
    Abstract: A method for quantifying droplet fluxes of a water mist spray uses different measuring apparatuses and compares the measurements of the two apparatuses with one another. One of the measuring apparatuses is an iso-kinetic sampling probe in which the air velocity of the portion of the water spray mist entering the probe is made equal to the air velocity of the water mist spray around the probe by connecting a source of vacuum to the probe. The drops of the spray entering the probe are prevented from passing out of the probe. The air velocity of the spray entering the probe is measured by an anemometer, the drops of the entering spray are collected in a reservoir, and the depth of water in the reservoir is measured by a differential pressure transducer. The output of the pressure transducer is sent to a computer that calculates the water collection rate based on the sectional area of the probe opening and the water collection rate in the reservoir.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: February 27, 2007
    Assignee: FM Global Technologies, LLC
    Inventors: Benjamin Ditch, Hong-Zeng Yu
  • Characterization of mist sprays using a phase-doppler analyzer and an iso-kinetic sampling for validation of scale modeling of water mist fire suppression
    Publication number: 20050126259
    Abstract: A method for quantifying droplet fluxes of a water mist spray uses different measuring apparatuses and compares the measurements of the two apparatuses with one another. One of the measuring apparatuses is an iso-kinetic sampling probe in which the air velocity of the portion of the water spray mist entering the probe is made equal to the air velocity of the water mist spray around the probe by connecting a source of vacuum to the probe. The drops of the spray entering the probe are prevented from passing out of the probe. The air velocity of the spray entering the probe is measured by an anemometer, the drops of the entering spray are collected in a reservoir, and the depth of water in the reservoir is measured by a differential pressure transducer. The output of the pressure transducer is sent to a computer that calculates the water collection rate based on the sectional area of the probe opening and the water collection rate in the reservoir.
    Type: Application
    Filed: June 17, 2004
    Publication date: June 16, 2005
    Applicant: FM Global Technologies, LLC
    Inventors: Benjamin Ditch, Hong-Zeng Yu