Patents by Inventor William J. Shannon

William J. Shannon 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).

  • Overvoltage protectors sealed with gel
    Patent number: 5557065
    Abstract: Telecommunications overvoltage protectors are sealed from environmental degradation by a gel. The gel is inserted in such a way as not to interfere with moving parts or air gaps in the protectors.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: September 17, 1996
    Assignee: Siecor Corporation
    Inventors: Boyd G. Brower, Robert A. Crane, John J. Napiorkowski, William J. Shannon
  • Solid state primary telephone protector
    Patent number: 5438619
    Abstract: A telephone protector includes a rigid plastic packaged solid state switch which is clamped to prevent the switch from bursting to an open circuit condition.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: August 1, 1995
    Assignee: Siecor Puerto Rico, Inc.
    Inventors: William J. Shannon, John J. Napiorkowski, Dan Kidd
  • Station protector module for network interface device
    Patent number: 5410596
    Abstract: A station protector module contains telephone company terminals and subscriber terminals. The module has apparatus for grounding the module in a network interface device and also has means for grounding upon extended grounding current flow through a surge protector in the module. The grounding apparatus becomes operative upon the melting of a fusible means. The surge protector is a single component bidirectional voltage sensitive switch.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: April 25, 1995
    Assignee: Siecor Corporation
    Inventors: William J. Shannon, John P. DuBois, John J. Napierkowski, Dan Kidd
  • Surge arrester having solid state switch
    Patent number: 5373413
    Abstract: A surge arrester for telephone lines comprises a threaded metal enclosure for insertion into a threaded well of a station protector. The protective element within the threaded metal enclosure is a voltage sensitive solid state switch comprising a semiconductor chip sandwiched between two flat electrodes. One electrode is in contact with a metal plate which is in contact with a solder disc. The other electrode is in contact with a metal post disposed in, and extending through, a plastic spacer within the threaded metal enclosure.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: December 13, 1994
    Assignee: Siecor Puerto Rico, Inc.
    Inventors: William J. Shannon, Mark P. Cote
  • Over-temperature sensor and protector for semiconductor devices
    Patent number: 4990987
    Abstract: Semiconductors can be damaged by overheating and to prevent such damage, the present invention utilizes a PTC thermistor which is in a heat sensing relationship with the semiconductor. Such thermistors demonstrate a sharp rise in resistance when the body temperature approaches or reaches the anomaly temperature. Electronic circuitry is designed to be sensitive to the resistance increase of the thermistor (caused by the semiconductor's heating) and shuts off the power to the semiconductor before it overheats.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: February 5, 1991
    Assignee: GTE Products Corporation
    Inventors: R. Wayne Boucher, William J. Shannon