Patent ID: 6533437
Filing Date: 2003-03-18
Classification: F21S,F21V,Y10S

Abstract:
A light unit for use in connection with a cord, comprising:a bulb assembly having a pair of leads; a connection unit to which the bulb assembly is releaseably secured; a pair of contact elements disposed on the connection unit for electrically connecting said pair of leads to the cord; a mechanical switch positioned within the connection unit and operable between a closed position for providing a circuit path between separate wire segments of the cord and an open position wherein said circuit path is broken; an actuating member movable with the bulb assembly to impinge against an operable portion of the mechanical switch, the actuating member being configured such that when the bulb assembly is retained within the connection unit, the actuating member displaces the moveable member to actuate the switch from the closed position to the open position; and a shunt assembly insertable within the connection unit, the shunt assembly having a retainer comprising a nonconducting material having elastic qualities to provide a restoring force when bent, a high resistance element being attached to the retainer and the retainer being configured so that at least a portion thereof must be bent against its restoring force in order to fit the retainer within the connection unit.