Patent ID: 6427749
Filing Date: 2002-08-06
Classification: B60J,E05B,E05D,E05F,E05Y,E06B,Y10S

Abstract:
A shutter assembly comprising:a pair of elongated tracks; a shutter curtain supported in the tracks for bi-directional sliding movement between an open position and a closed position; and lock including: at least one rod supported on the curtain and being shiftable between an extended position in which the rod extends outward from the curtain toward one of the tracks and a relatively retracted position; a first actuator supported on the curtain for shifting the rod between the extended and retracted positions; a locking arm supported on one of the tracks and being shiftable between an extended position in which the arm protrudes into the track and a relatively retracted position; a second actuator connected to the arm for shifting the arm between the extended and retracted positions; and a circuit including a switch movable between a first position in which power is supplied to the second actuator to move the locking arm to the extended position and a second position in which power is supplied to the second actuator to move the locking arm to the retracted position, the curtain being locked against sliding movement from the closed position when both the rod and locking arm are extended, and being unlocked for sliding movement from the closed position when at least one of the rod and the locking arm is retracted.