Patents by Inventor James Chermak

James Chermak 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).

  • Combined overvoltage station protector apparatus having maintenance termination and half ringer circuitry
    Patent number: 5572397
    Abstract: A combined overvoltage station protector apparatus with a maintenance termination and a half ringer circuit arrangement combined with an overvoltage surge arrester mounted in a single housing includes a hollow housing divided into a first section and a second section, with each having a top surface and an open bottom. A pair of input line terminals and a ground terminal are fixed to the top surface and extend inside the hollow housing first section. A pair of output line terminals are affixed in the top surface of the second section and extend within the hollow housing. A printed circuit board, disposed within the second section of the housing provides for interconnecting the electrical circuit components, which form the maintenance termination and the half ringer circuit arrangement. A housing assembly, disposed within the hollow housing first section, is connected to the housing ground terminal and is adapted to removably receive a surge arrester therein.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: November 5, 1996
    Assignee: TII Industries, Inc.
    Inventors: Thomas J. Smith, James Chermak