Patent ID: 6929292
Filing Date: 2005-08-16
Classification: E05B,Y10S,Y10T

Abstract:
1. A lever lock system for precluding a child from opening a door without performing a complex compound movement comprising in combination: a door with a securing mechanism including a lever handle with a central pivotable shaft and perpendicularly extending arm, the arm being adapted to oscillate between a generally horizontal locking orientation and a generally vertical unlocking orientation to allow a user to release the securing mechanism and open the door; a mounting plate in a generally planar configuration having an upper extent with a generally circular aperture and a spaced lower extent with a pair of bores, the circular aperture having a plurality of notches equally spaced around the extent thereof and being adapted to receive a plurality of retaining screws to couple the mounting plate to the door such that the pivotable shaft of the securing mechanism passes through the circular aperture of the mounting plate; a support member in a generally rectilinear configuration with a semicircular recess portion and a top face adapted to avoid interfering with the movement of the securing mechanism, a closed rear face, an open front face and an internal region of the support member having a hollow cylinder of a first diameter with a hollow center of the cylinder extending to a central bore in the closed rear face of the support member, the central bore having a retaining lip adjacent to the open front face, the rear face also having a pair of spaced apertures adapted to align with the bore on the lower extent of the mounting plate to couple the support member with the mounting plate with a pair of coupling screws; a push button of a generally rectilinear configuration with dimensions greater than the support member and having an open back face, a closed front plate and a hollow shaft of second diameter greater than the first diameter, the push button being adapted to telescope over the support member with the hollow shaft of the push button being adapted to telescope over the hollow cylinder of the support member; a shoulder screw having a solid generally cylindrical configuration with an obtuse first end and a threaded recessed second end, the shoulder screw being adapted to house within the hollow cylinder of the support member with the obtuse first end being adapted to rest against the retaining lip and the threaded recess being adapted to screwably couple to the closed front plate of the push button within the hollow shaft, thereby retaining the support member within the confines of the push button; a spring of a third diameter greater than the second diameter and being adapted to be retained over the hollow shaft of the push button to thereby keep compressible force between the push button and the support member such that when the system is at rest the spring keeps the push button extended and prevents the rotation of the securing mechanism shaft by preventing the rotation of the lever handle thereby preventing the opening of the door, and when the system is activated by a user through a first motion of compressing the push button against the force of the spring, and through a second motion of rotating of the lever handle from the horizontal orientation to the vertical orientation, the user, in a complex and compound motion, is able to allow the door to be opened.