Patents by Inventor John P. Weight

John P. Weight 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).

  • Resolution transducers, systems and methods for the transmission and/or reception of waves propagated by vibration
    Patent number: 4509153
    Abstract: Problems of resolution and focussing arise in the near field in systems employing radiation, including ultrasonic systems. These problems can be alleviated by suppressing the plane waves in the combination of plane waves and edge waves usually employed. Several ultrasonic transducers with this property are described and in one a piezoelectric disc with surface electrodes is non-linearly polarized to transmit edge waves without plane waves.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: April 2, 1985
    Assignee: National Research Development Corporation
    Inventor: John P. Weight