Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 7, 2006
Patent Application Number
11116158
Date Filed
April 27, 2005
Patent Primary Examiner
Patent abstract
A keyway plug that discretely provides a device for preventing a person from unlocking a tumbler lock even if the correct key is used. The present invention includes a plug member that is sized to fit entirely within a keyhole and is effective to block a key from being completely inserted into the keyhole. The plug may be removed from the keyhole through use of an extraction tool having a magnet which attracts the plug and magnetically couples the plug to the extraction tool when the tool comes into contact with the plug.
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