Patents by Inventor Joseph Gunchenko

Joseph Gunchenko 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).

  • Spiral varistor
    Patent number: 6285274
    Abstract: A metal oxide varistor comprises a ceramic substrate having a first and second surface that form a spiral, and first and second conductive coatings disposed thereon that are in electrical contact with respective electrodes. A cavity is defined between the conductive coatings to preclude shorting the device, and a non-conductive material is disposed in the cavity to prevent arcing.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: September 4, 2001
    Assignee: The Wiremold Company
    Inventor: Joseph Gunchenko
  • High current varistor
    Patent number: 6252493
    Abstract: A metal oxide varistor comprises a hollow ceramic body having an opening, a first electrode within the body and having a portion extending through the opening, and a second electrode disposed on the exterior surface of the body. Voltage applied to the electrodes above the device clamping voltage causes the ceramic body to conduct. The geometry of the body, which is optimally a sphere, greatly increases surface area between the electrodes and the ceramic body, and consequently increases the device's current carrying capacity.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: June 26, 2001
    Assignee: The Wiremold Company Brooks Electronics Division
    Inventor: Joseph Gunchenko