Patents by Inventor James F. Morrin

James F. Morrin 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).

  • Ultrasonic medical instrument
    Patent number: 4535759
    Abstract: An ultrasonic friction reducing device is comprised of an ultrasonic generator having a special sweep frequency oscillator, a piezoelectric crystal transducer and a cervical dilator probe. The generator produces an oscillatory electric current for the operation of the device. The piezoelectric crystal transducer converts the oscillatory electric current produced by the generator into a vibratory mechanical motion. The transducer, through mechanical coupling, transmits the ultrasonic energy into the friction reducing probe.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 20, 1985
    Assignee: Cabot Medical Corporation
    Inventors: Todd J. Polk, James F. Morrin