Patents Assigned to OFI Inc.
  • Patent number: 5946180
    Abstract: An electrical connection safety apparatus which eliminates the risk of fire or electric shock associated with current overload faults in electrical systems. The apparatus senses or detects the electrical current rating of electrical cords or connectors which are plugged into electrical outlets and disconnects power to the outlet and connector whenever the cord current rating is exceeded. Connector current rating is indicated by the length of connector prongs and the connector current rating is detected by a movable member within an electrical receptacle when the connector prongs are plugged into the receptacle. Circuitry monitors the load current delivered to the receptacle and connector and compares the load current to detected current rating. When a current overload occurs, power to the receptacle and connector is disconnected. The receptacle resets itself when the connector is unplugged.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: August 31, 1999
    Assignee: OFI Inc.
    Inventor: Richard O. Simpson