Patents by Inventor Elizabeth V. Mangan

Elizabeth V. Mangan 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).

  • Peristaltically Self-propelled endoscopic device
    Publication number: 20030065250
    Abstract: Expandable actuators surround a central conduit. Each actuator comprises a bladder that, when fluid is introduced, expands laterally while contracting longitudinally. A restorative spring can be placed inside a bladder and between the two ends to restore the actuator to its original shape as fluid is withdrawn. Multiple actuators can be placed in series to successively inflate and deflate and generate a peristaltic motion. One or more Shape Memory Alloy (SMA) springs can be affixed to one or more restorative springs to cause bending motion.
    Type: Application
    Filed: May 8, 2002
    Publication date: April 3, 2003
    Applicant: Case Western Reserve University
    Inventors: Hillel J. Chiel, Roger D. Quinn, Randall D. Beer, Elizabeth V. Mangan