A door safety barricade capable of preventing an intruder from entering through a door in a classroom, a school, an office building, and the like, when the device is in an engaged, locked position and wherein the selected authorities will be automatically notified as the locking device passes by the sensor while being engaged.

A door safety barricade capable of preventing an intruder from entering through a door in a classroom, a school, an office building, and the like, when the device is in an engaged, locked position and wherein the selected authorities will be automatically notified as the locking device passes by the sensor while being engaged.

A door top child safety lock mechanism comprises a body slidably mountable on a door top and a channel and a locking plate. The channel includes a web extending between first and second flanges. The lock plate extends from the first flange and defines a locking slot extending along a slot axis. The lock plate further defines an interlock cut-out formed along a distal edge, relative to the first flange, of the locking slot, wherein first width W.sub.G at the interlock cut-out is greater than second width W.sub.L in a region that is laterally intervening between the interlock cut-out and the open end of the locking slot. A peg is mountable to a door frame and configured to slide through the open end of the locking slot and between the proximal and distal edges of the locking slot.

A door top child safety lock mechanism comprises a body slidably mountable on a door top and a channel and a locking plate. The channel includes a web extending between first and second flanges. The lock plate extends from the first flange and defines a locking slot extending along a slot axis. The lock plate further defines an interlock cut-out formed along a distal edge, relative to the first flange, of the locking slot, wherein first width W.sub.G at the interlock cut-out is greater than second width W.sub.L in a region that is laterally intervening between the interlock cut-out and the open end of the locking slot. A peg is mountable to a door frame and configured to slide through the open end of the locking slot and between the proximal and distal edges of the locking slot.

A door assembly for an animal enclosure includes a door frame and a door each having a plurality of interconnected horizontal and vertical wires. The door frame defines an opening for an animal to pass therethrough, and the door is slidably coupled to the door frame such that it moves between an open position and a closed position relative to the door frame to allow egress and ingress through the opening. A catch member is coupled to the door frame. A latch includes a base member, a bolt, and a lever portion. A first vertical wire and a second vertical wire of the door are spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door. In the closed position, the bolt is coupled to the first vertical wire.

A door assembly for an animal enclosure includes a door frame and a door each having a plurality of interconnected horizontal and vertical wires. The door frame defines an opening for an animal to pass therethrough, and the door is slidably coupled to the door frame such that it moves between an open position and a closed position relative to the door frame to allow egress and ingress through the opening. A catch member is coupled to the door frame. A latch includes a base member, a bolt, and a lever portion. A first vertical wire and a second vertical wire of the door are spaced from one another such that the first vertical wire is at a first end of the door and the second vertical wire is at a second end of the door. In the closed position, the bolt is coupled to the first vertical wire.

A latch includes a housing that has a first side and a second side. The latch includes a bolt assembly that is positioned at least partially within the housing. The bolt assembly includes a bolt movable between an extended position and a retracted position relative to at least one of the first and second sides of the housing. The bolt is biased toward at least one of the extended position and the retracted position, and the bolt is positionable so as to selectively extend from either the first side or the second of the housing in the extended position.

A door lock assembly for a door hinged to a door frame, having primarily a two-part lock assembly, including a linear pin or bolt having a first pin end and a second pin end, the second pin end formed with a handle attached and a magnet positioned therearound the second pin end and proximate a junction between the handle and the second pin end and a mounting plate having a first plate end and a second plate end, the plate ends having a one or more mounting holes, the mounting plate having a base or humped body positioned between first plate end and a second plate end, the humped body having a locking aperture positioned crosswise there through the humped body to receive first pin end.

In general, one aspect of the subject matter described in this specification is embodied in a latch. The latch includes a ball joint. The ball joint includes a stem and a first ball positioned at a proximal end of the stem. The latch includes a casing that is configured to surround a portion of the stem and the first ball and secures the ball joint within an enclosure. The latch further includes a cap plate. The cap plate has a recess or cup that receives the first ball of the ball joint and allows the first ball to swivel within the recess or cup.

In general, one aspect of the subject matter described in this specification is embodied in a latch. The latch includes a ball joint. The ball joint includes a stem and a first ball positioned at a proximal end of the stem. The latch includes a casing that is configured to surround a portion of the stem and the first ball and secures the ball joint within an enclosure. The latch further includes a cap plate. The cap plate has a recess or cup that receives the first ball of the ball joint and allows the first ball to swivel within the recess or cup.