Patent ID: 7284400
Filing Date: 2007-10-23
Classification: E05B,Y10T

Abstract:
1. Apparatus to prevent rotation of a deadbolt knob on a door mounted in a door frame to thereby prevent movement of a deadbolt connected to the deadbolt knob from a locked position, the deadbolt knob having a long first dimension and a shorter second dimension orthogonal to the first dimension, the apparatus comprising: a) an elongate body having a long axis and no moving parts; b) a through passage at a first end of the body, the passage constructed and dimensioned to removably receive the deadbolt knob therein and having parallel side walls disposed on either side of the long axis that are spaced apart a greater distance than the second dimension and a lesser distance than the first dimension so that the deadbolt knob cannot rotate freely within the passage; and c) a second end of the body having a greater width than the first end constructed and dimensioned to engage the door frame as the deadbolt knob is rotated to prevent sufficient rotation of the deadbolt knob to unlock the deadbolt; and d) rigid hanging means on the second end for hanging the apparatus on a doorknob for storage when not in use, and the hanging means not interfering with door operation.