US Patent 7246449 Installation template for lock and alarm assemblies

A template comprises a central member that has a recess adapted to receive and position the first portion of an alarm relative to the template. The central member has a first end and a second end. A longitudinal member extends perpendicular to, and coplanar with, the first end of the central member. The longitudinal member has at least one indicia for marking the installation location of the second portion of the alarm assembly on a second door. A flange extends from the second end of the central member in a plane perpendicular to that of the central member. The flange includes at least one indicia for marking the installation location of the second portion of the alarm member on a doorframe.