Patent ID: 6848729

Claim:
An apparatus for locking a door, comprising: a receiver having a chamber for receiving a bolt therein and a first opening on a side wall of the receiver for allowing the bolt to laterally enter the chamber; a bolt plate, coupled to the receiver, having a bolt hole for allowing the bolt to enter the chamber in a direction substantially parallel to a longitudinal axis of the chamber and substantially perpendicular to a plane of the bolt plate, wherein the bolt plate further includes a second opening aligned with the first opening so as to allow the bolt to laterally enter said chamber; and a movable strike positioned within said chamber and configured to move within said chamber in a direction substantially parallel to the longitudinal axis of said chamber and substantially perpendicular to the plane of the bolt plate, wherein the strike moves from a retracted position to an extended position toward said bolt plate, and vice versa, such that when the strike is in its retracted position, the bolt is free to laterally pass through said first and second openings into and out of the chamber and when the strike is in its extended position, it securely engages the bolt when the bolt is positioned within the chamber.