Patents by Inventor Peter John Cusack

Peter John Cusack 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).

  • Particle property measurement
    Patent number: 5952560
    Abstract: A method and apparatus for the measurement of a property of particles suspended in a medium are described. In one embodiment, the deformability of sampled red blood cells is measured. A pulse generator (40) provides a narrow square pulse to a transmitting transducer (35), which passes an ultrasonic wave through the sample medium (15) to be received by a receiving transducer (36). The output signal from the transducer (36) is amplified by an amplifier (41) then subjected to signal processing. The acoustic absorption of the sample is calculated and scaled with frequency. The slope of a plot of scaled absorption with frequency gives a measure of the red blood cells' deformability.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: September 14, 1999
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Anthony F Collings, Nicholas Bajenov, Peter John Cusack