Patent ID: 7404363

Claim:
A security door construction having opposing side portions and comprising: a door having a top and a bottom, an inside and an outside, a closing edge and being slidably movable in a slide motion between an open position and a closed position; a door frame having a top and bottom; at least one hook located on the inside of said door; at least one hook slot located on said door frame for receiving said at least one hook located on the inside of said door; and an offset hinge assembly on one side portion of said security door construction, said offset hinge assembly comprising: a first top door frame hinge; a first bottom door frame hinge having a common first axis with said first top door frame hinge; a first top pin disposed in said first top door frame hinge; a first bottom pin disposed in said first bottom door frame hinge; a first rigid member connected to said first top pin and said first bottom pin; a second top door hinge; a second bottom door hinge having a common second axis with said second top door hinge; a second top pin disposed in said second top door hinge; a second bottom pin disposed in said second bottom door hinge; a second rigid member connected to said second top pin and said second bottom pin; said first and second axes being parallel, and said first and second rigid members being fixed relative to each other; a locking structure fixed on said door frame; a locking assembly mounted on said door, said locking assembly having a movable locking member having a locking condition for releasably engaging said locking structure and an unlocking condition wherein said locking assembly is released from said locking structure, and a locking handle moving said locking member between the locking condition and the unlocking condition; wherein said door frame comprises a closing style, an upright against which said door closes, said upright being located on the opposite side portion of said security door construction from said offset hinge assembly, and wherein a door slot is located between said closing style and said upright for slidingly receiving the closing edge of said door when said door moves into the closed position and for slidingly releasing the closing edge of said door when said door moves to the open position, wherein said locking handle is operable upon receiving a lateral force, to effect a throw of said hinge assembly to cause the sliding movement of said door to selectively move said door from the open position to the closed position and to move said locking member from the unlocking condition to the locking condition, or move said door from the closed position to the open position and move said locking member from the locking condition to the unlocking condition.