Patent ID: 8196973

Claim:
A device for childproofing a door lock assembly, wherein the door lock assembly includes a central shaft and a pair of side shafts, comprising: a substantially rectangular base member having an upper surface, a central aperture formed therethrough and a pair of notched sides adapted for mounting on the side shafts of a door lock assembly; a first cylindrical post extending from the upper surface of the base member; a sliding plate member slidably mounted on the base member, the sliding plate member having an upper surface and a lower surface; a second cylindrical post extending from the upper surface of the sliding plate member; a circular disk member rotatably mounted on the upper surface of the base member, the disk member having a central aperture formed therethrough and being dimensioned to receive the central shaft of the door lock assembly, an arcuate guide channel and an arcuate locking channel opposite the guide channel, the first cylindrical post extending through and being slidable in the arcuate guide channel, the second cylindrical post extending through and being slidable in the locking channel, the locking channel having a central notch for releasably receiving the second cylindrical post to limit slidable movement in the locking channel and prevent complete rotation of the central shaft of the door lock assembly; and means for selectively disengaging the second cylindrical post from the central notch to allow unlimited slidable movement in the locking channel to permit complete rotation of the central shaft of the door lock assembly to open the door.