Method and apparatus for installing alarm systems and door locks

A method of installing a door locking system, comprising the steps of:

• (a) providing a positioning member, the positioning member having a longitudinal centerline and a marking point, the marking point being aligned with the longitudinal centerline of the positioning member;
• (b) partially opening the door;
• (c) placing the positioning member in a hole in the door;
• (d) while the positioning member is at least partially located in the hole, closing the door in the door frame;
• (e) while the door is closed in the door frame, applying force on the positioning member to cause the marking point of the positioning member to make a positioning mark on the frame;
• (f) after step “e”, opening the door and removing the positioning member from the hole in the door;
• and
• (g) after step “e”, drilling an opening in the frame at the location of the positioning mark.

A method of installing a latch or door plate on a door frame attached to a door, comprising the steps of:

• (a) providing a positioning member, the positioning member having a longitudinal centerline and a marking point, the marking point being aligned with the longitudinal centerline of the positioning member;
• (b) partially opening the door;
• (c) placing the positioning member in a hole in the door;
• (d) while the positioning member is in the hole, closing the door in the door frame;
• (e) while the door is closed in the door frame, applying force on the positioning member to cause the marking point of the positioning member to make a positioning mark on the frame;
• (f) after step “e”, opening the door and removing the positioning member from the hole in the door;
• and
• (g) after step “e”, using the mark made in step “e” as a basis for installing the latch or door plate on the frame.

A method of installing a latch or bolt plate on a door frame having a door attached to the frame, comprising the steps of:

• (a) providing a first marking apparatus, the first marking apparatus including a first longitudinal centerline and first marking point, and providing a second marking apparatus, the second marking apparatus includes a second longitudinal centerline and a second marking point;
• (b) placing the first marking apparatus in a first opening for a latch or deadbolt mechanism for the door, and placing the second marking apparatus in a second opening for a latch or deadbolt mechanism for the door;
• (c) while the first marking apparatus is in the first opening, closing the door in the door frame;
• (d) while the door is closed, applying force on the first marking apparatus causing the first marking point to place a first positioning mark on the side of the door frame;
• (e) while the second marking apparatus in a second opening, closing the door in the door frame;
• (f) while the door is closed, applying force on the second marking apparatus causing second marking point to place a second positioning mark on the side of the door frame;
• (g) opening the door and removing the first marking apparatus from the door;
• (h) opening the door and removing the second marking apparatus from the door;
• and
• (i) using the first and second positioning marks to install a plate on the door frame for receiving the latch or dead bolt.