Patents by Inventor David Schindel

David Schindel 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 of inspecting food stuffs and/or associated packaging
    Patent number: 7107852
    Abstract: A system to perform measurements on liquids, meat, viscous sugar or starch-based materials, and other foodstuffs using air-coupled ultrasound is provided. The technique uses ultrasonic transducers (advantageously capacitive transducers with polymer membranes), to generate ultrasonic signals in air, and to receive these signals after they have passed through the material under test. An ultrasonic pulse-compression process is then applied to increase the sensitivity of signals transmitted through the materials.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: September 19, 2006
    Assignee: University of Warwick
    Inventors: David Arthur Hutchins, Duncan Robert Billson, Tat Hean Gan, David Schindel
  • Method of inspecting food stuffs and/or associated packaging
    Publication number: 20050155430
    Abstract: A system to perform measurements on liquids, meat, viscous sugar or starch-based materials, and other foodstuffs using air-coupled ultrasound is provided. The technique uses ultrasonic transducers (advantageously capacitive transducers with polymer membranes), to generate ultrasonic signals in air, and to receive these signals after they have passed through the material under test. An ultrasonic pulse-compression process is then applied to increase the sensitivity of signals transmitted through the materials.
    Type: Application
    Filed: February 26, 2003
    Publication date: July 21, 2005
    Inventors: David Hutchins, Duncan Billson, Tat Gan, David Schindel