Patent ID: 8833114
Filing Date: 2014-09-16
Classification: E05B,E05C,Y10T

Abstract:
1. A theft-resistant guard for a lock for a roll-up door, said lock having a plate adapted to be attached to said door, having a latch cam pivotally mounted on said plate and adapted to selectively engage a pin mounted on a sill, having a handle pivotally mounted on said plate and arranged to selectively move said latch cam between a closed position and an open position, and having a keeper mounted on said plate and arranged to selectively engage said handle for releasably holding said handle in said closed position, wherein the improvement comprises: said guard being non-removably mounted on said lock for movement with said handle; said guard having a proximal marginal end portion arranged to embrace the pivotal connection between said latch cam and plate, having an intermediate portion adapted to embrace said handle, and having a distal marginal end portion adapted to embrace said keeper when said handle is in said closed position; wherein said guard proximal marginal end portion has an opening; and wherein a pivot pin has a head portion at one end arranged to bear against the outer surface of said guard and has its other end welded to said plate such that said guard may not be removed from said lock.