Patents by Inventor Thomas Visentin

Thomas Visentin 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).

  • Three phase to single phase converter
    Patent number: 5055989
    Abstract: A three phase A.C. to single phase A.C. converter wherein the output voltage is not disturbed if one of the input phase lines becomes inoperative. The three phase A.C. is first rectified, and a D.C. voltage is derived from the resulting rectified D.C. current. The D.C. voltage is regulated, and a single phase A.C. voltage is generated from the regulated D.C. voltage.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: October 8, 1991
    Assignee: International Business Machines Corporation
    Inventors: Lawrence B. Carroll, Kenneth H. Kidder, Jr., Thomas Visentin