Patents Assigned to EFI Electronics Corporation
  • Patent number: 7477503
    Abstract: A circuit protection device including a conductor arm releasably connected between a voltage sensitive device and a circuit to be protected. The connector arm is biased to move in a direction generally parallel with a plane defined by a lateral dissection between the releasably connected conductor arm and the voltage sensitive device.
    Type: Grant
    Filed: April 30, 2005
    Date of Patent: January 13, 2009
    Assignee: EFI Electronics Corporation
    Inventor: Gregory P. Aszmus
  • Patent number: 5724221
    Abstract: A varistor-based voltage suppression circuit is coupled to a power distribution system having at least one power line and at least one neutral line. A varistor is coupled directly to the power and neutral lines of the distribution circuit so that the electric current travels across at least one planar surface of the varistor, thus eliminating one or more leads from the distribution circuit to the varistor circuit. The suppression circuit may be a single varistor or a number of varistors in parallel with a number of lines in the distribution circuit.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: March 3, 1998
    Assignee: EFI Electronics Corporation
    Inventor: Perry Law
  • Patent number: 5023747
    Abstract: A meter base surge suppression system is mountable on a meter mounting panel and is adapted to receive and hold a conventional electric meter. The surge suppression system includes a base plate having a plurality of openings through which contact prongs may be inserted, and an electrical contact element disposed about one of the openings for making electrical contact with a prong inserted through the opening. A surge suppression device is disposed on an upper side of the base plate and is coupled between the contact element and ground potential. A receiving plate is mountable on the base plate and is adapted to receive and hold a conventional electric meter. The receiving plate includes a plurality of buss elements which extend downwardly through the receiving plate and through the openings in the base plate to engage and be received into prong receptacles of a meter mounting panel on which the urge suppression system is mounted.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: June 11, 1991
    Assignee: EFI Electronics Corporation
    Inventor: Roger K. Lindsay