Patents by Inventor Victor A. Viggiano

Victor A. Viggiano 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).

  • Multi-wire electric power cable, particularly a supply cable for borehole units
    Patent number: 4749823
    Abstract: In a multi-wire electric power cable, particularly a supply cable for borehole units such as pumps, each insulated wire is protected by a corrugated sheath. In order to be able to withstand high pressures of, for instance, 300 bar, the corrugation of the corrugated sheaths is so developed with respect to depth and pitch of corrugation that the length of each corrugated sheath is between 33 and 67%, and preferably 45 to 55%, shorter than the smooth tube from which it has been produced.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: June 7, 1988
    Assignee: kabelmetal electro Gesellschaft mit beschrankter Haftung
    Inventors: Gerhard Ziemek, Dimitri R. Stein, Victor A. Viggiano