Patent ID: 7322621
Filing Date: 2008-01-29
Classification: E05B,Y10T

Abstract:
1. A magnetic lock comprising: a bottom cover shell; a top cover shell fastened to said bottom cover shell; a latch mounted inside said top cover shell; an electromagnetic valve, said electromagnetic valve having a reciprocating rod, a stop block being mounted on said reciprocating rod, said stop block being linearly displaceable responsive to displacement of said reciprocating rod; a movable holder member carrying said electromagnetic valve and being movably mounted inside said top cover shell and adapted to control the return stroke of said latch; wherein said movable holder member has one end supported on a compression spring inside said top cover shell and an opposite end stopped against an adjustment screw, said adjustment screw being mounted in one side of said top cover shell and kept in axial alignment with said movable holder member and said compression spring on a moving axis X-X; wherein when said adjustment screw is tightened the stop block does not hinder movement of the latch when the electromagnetic valve is energized, and when said adjustment screw is loosened the stop block prevents movement of the latch when the electromagnetic valve is energized.