Friction resistant, retrofitted, auto-resetting, detention latch lock apparatus
View Patent ↗A retrofittable, auto-resetting detention locking apparatus includes a main body defining various features including a mounting hole, pin guide, slide guide, slide track, slide channel, grub screw guide groove, and concave divot. The apparatus further includes a slide that includes first and second plates joined by a rail that slidably interacts with the slide guide. A resistance spring mounted between the main body and slide biases the components together. A security pin fixed to the second plate mechanically engages with door locking mechanisms. The apparatus may be retrofitted to existing access points to prevent tampering with doorway locking mechanisms while providing automatic reset functionality during breach attempts.
1 . A retrofittable, auto-resetting detention locking apparatus, comprising:
a main body defining a mounting hole, a pin guide, a slide guide, a slide track, a slide channel, a grub screw guide groove, and a concave divot;
a first spring mount affixed to the main body and defining a first spring mounting hole;
a slide comprising a first plate and a second plate joined by a rail constructed and arranged to slidably interact with the slide guide and slidably travel within the slide channel and wherein the slide defines a grub screw hole;
a second spring mount affixed to the slide and defining a second spring mounting hole;
a resistance spring mounted to the first spring mounting hole and the second spring mounting hole; and
a security pin fixed to the second plate; and
wherein the main body comprises a lift nose configured to rotate the locking apparatus when in use.
2 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , further comprising a grub screw threadingly attached to the slide.
3 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , wherein the resistance spring is constructed and arranged to create resistance for the slide during an attempted breach of the locking apparatus as a grub screw travels from the grub screw guide groove and into the concave divot.
4 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , wherein the grub screw guide groove is generally tapered in width and depth.
5 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , wherein the grub screw guide groove is generally tear-drop shaped in depth and perimeter.
6 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , wherein the security pin is constructed and arranged to mechanically engage with a locking mechanism of a door.
7 . A retrofittable, auto-resetting detention locking apparatus as in claim 1 , wherein the pin guide is constructed and arranged to prevent locking of a roller arm into an open position.
8 . A retrofittable, auto-resetting detention locking apparatus, comprising:
a metal main body defining a mounting hole, a pin guide, a slide guide, a slide track, a slide channel, a grub screw guide groove, and a concave divot;
a first spring mount affixed to the main body and defining a first spring mounting hole;
a metal slide comprising a first plate and a second plate joined by a rail constructed and arranged to slidably interact with slide guide and slidably travel within the slide channel and wherein the slide defines a grub screw hole;
a second spring mount affixed to the slide and defining a second spring mounting hole;
a resistance spring mounted to the first spring mounting hole and the second spring mounting hole; a grub screw threadingly attached to the slide; and
a security pin fixed to the second plate, the security pin being constructed and arranged to mechanically engage with a locking mechanism of a door.
9 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the main body comprises a lift nose configured to rotate the locking apparatus when in use.
10 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the resistance spring is constructed and arranged to create resistance for the slide during an attempted breach of the locking apparatus as the grub screw travels from the grub screw guide groove and into the concave divot.
11 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the grub screw guide groove is generally tapered in width and depth.
12 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the grub screw guide groove is generally tear-drop shaped in depth and perimeter.
13 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the pin guide is constructed and arranged to prevent locking of a roller arm into an open position.
14 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the resistance spring is constructed and arranged to automatically reset the retrofittable, auto-resetting detention locking apparatus.
15 . A retrofittable, auto-resetting detention locking apparatus as in claim 8 , wherein the main body and slide comprise steel.
16 . A retrofittable, auto-resetting detention locking apparatus, comprising:
a steel main body defining a mounting hole, a pin guide, a slide guide, a slide track, a slide channel, a grub screw guide groove, and a concave divot;
a first spring mount affixed to the main body and defining a first spring mounting hole;
a steel slide comprising a first plate and a second plate joined by a rail constructed and arranged to slidably interact with the slide guide and slidably travel within the slide channel and wherein the slide defines a grub screw hole;
a second spring mount affixed to the slide and defining a second spring mounting hole;
a resistance spring mounted to the first spring mounting hole and the second spring mounting hole, the spring being constructed and arranged to automatically reset the retrofittable, auto-resetting detention locking apparatus and to create resistance for the slide during an attempted breach of the locking apparatus as a grub screw travels from a grub screw guide groove and into the concave divot;
the grub screw threadingly attached to the slide; and
a security pin fixed to the second plate, the security pin being constructed and arranged to mechanically engage with a locking mechanism of a door.