Patent ID: 6375244
Filing Date: 2002-04-23
Classification: E05B,E05C,Y10T

Abstract:
A security apparatus comprising:a door having a first edge, a second edge, a frame and a dead bolt lock; and a security lock including a first bolt mountable on the door so as to extend to the first edge thereof to selectively engage the frame near the first edge of the door, a second bolt mountable on the door so as to extend to the second edge thereof to selectively engage the frame near the second edge, and a mechanism which operatively connects the first bolt to the dead bolt lock whereby, when the dead bolt lock is engaded, the first bolt engages the frame and, when the dead bolt lock is disengaged, the first bolt is disengaged from the frame, the mechanism operatively connecting the second bolt to the dead bolt lock, whereby, when the deadbolt is engaged, the second bolt engages the frame and, when the dead bolt lock is disengaged, the second bolt is disengaged from the frame, the mechanism including a lever and each of the bolts behind connected to a separate rack, both racks being operatively coupled to a pinion and being slidably mounted on the door such that both racks and both bolts simultaneously move towards the frame to engage the security lock and simultaneously move away from the frame to disengage the security lock, the lever operatively connecting the dead bolt lock to one of the racks, a cranked member being engageable with the dead bolt lock and being rotatable therewith, the lever being pivotally connected to said crank member, the lever having a first end adjacent the crank member, a second end adjacent said one rack and a slot between said one rack and the crank member, the security lock including a pin extending through the slot, whereby, when the crank member moves the first end of the lever in one direction, the second end of the lever moves the rack in a direction opposite said one direction.