Patent ID: 7073292

Claim:
A corner lock comprising: (a) a first longitudinally extending leg comprising: (i) first means for engaging an interior surface of a first frame member; and (ii) a pin receiver comprising: a. a first bracket having a generally square slot; b. a second bracket having a generally square slot; and c. a third bracket having a generally circular slot; (b) a second longitudinally extending leg comprising second means for engaging an interior surface of a second frame member; (c) means for securing said first longitudinally extending leg to said second longitudinally extending leg; (d) a rail pin comprising: (i) a rail engager; (ii) first means for preventing said rail pin from disengaging from said pin receiver in a first direction; and (iii) second means for preventing said rail pin from disengaging from said pin receiver in a second direction, wherein said first direction is substantially opposite said first direction; (e) wherein said rail pin is slidably received within said pin receiver.