Abstract: An improved security system to prevent unwanted entrance through a hinged barrier, such as, but not limited to a door, is provided and comprises a member associated with the barrier, whether internal or eternal to the barrier, and adapted to extend from a first length to a second length. An actuation mechanism is coupled to the member and is adapted to extend the member from the first length to the second length and to contract the member from the second length to the first length. A receptacle is provided adjacent the barrier for receiving a portion of the member when the member is extended by the actuating mechanism. A hinge assembly is provided and is disposed substantially opposite the receptacle and adjacent the barrier and is coupled to another end of the member, such that when the member is actuated to the extended position, the member, receptacle and hinge assembly form a security system to prevent unwanted entrance through the barrier.

Abstract: A security locking system that includes a cross bar pivotally connected at one end in a manner to pivot in two planes, a locking brace connected to a door frame at an opposite point from the point of the pivoting connection of the cross bar in a locking brace which includes an actuating mechanism which rotates around the locking bar and pulls the locking bar into a U-shaped sleeve. In an alternative embodiment, a segmented cross-bar is located totally within the door and is lengthened or shortened by rotation of a key on the outside of the door to enter or exit a pair of receptacles in the door frames to lock the door, or to open the door, respectively.

Abstract: A security locking system that includes a cross bar pivotally connected at one end in a manner to pivot in two planes, a locking brace connected to a door frame at an opposite point from the point of the pivoting connection of the cross bar in a locking brace which includes an actuating mechanism which rotates around the locking bar and pulls the locking bar into a U-shaped sleeve. In an alternative embodiment, a segmented cross-bar is located totally within the door and is lengthened or shortened by rotation of a key on the outside of the door to enter or exit a pair of receptacles in the door frames to lock the door, or to open the door, respectively.