Patents by Inventor David Mark Scott

David Mark Scott 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).

  • Method and apparatus for ultrasonic sizing of particles in suspensions
    Patent number: 7331233
    Abstract: A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the suspension wherein the energy comprises a wideband pulse containing a range of frequency components; a transducer adapted to be a receiver of ultrasonic energy and positioned in contact with said suspension to receive said wideband range of ultrasonic energy which has passed through the suspension; a first means adapted to accept a signal from said receiver and make an instantaneous determination of the attenuation of the wideband ultrasonic energy in passing through the suspension.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: February 19, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: David Mark Scott
  • Method and apparatus for ultrasonic sizing of particles in suspensions
    Patent number: 7010979
    Abstract: A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the suspension wherein the energy comprises a wideband pulse containing a range of frequency components; a transducer adapted to be a receiver of ultrasonic energy and positioned in contact with said suspension to receive said wideband range of ultrasonic energy which has passed through the suspension; a first means adapted to accept a signal from said receiver and make an instantaneous determination of the attenuation of the wideband ultrasonic energy in passing through the suspension.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: March 14, 2006
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: David Mark Scott
  • Method and apparatus for ultrasonic sizing of particles in suspensions
    Publication number: 20040060356
    Abstract: A particle size distribution monitor, comprising: a transducer adapted to be a source of ultrasonic energy and positioned in contact with a suspension containing a percent by volume of particles in a liquid, the transducer transmitting ultrasonic energy through the suspension wherein the energy comprises a wideband pulse containing a range of frequency components; a transducer adapted to be a receiver of ultrasonic energy and positioned in contact with said suspension to receive said wideband range of ultrasonic energy which has passed through the suspension; a first means adapted to accept a signal from said receiver and make an instantaneous determination of the attenuation of the wideband ultrasonic energy in passing through the suspension.
    Type: Application
    Filed: June 4, 2003
    Publication date: April 1, 2004
    Inventor: David Mark Scott