Patent ID: 8756965

Claim:
A burglary prevention device for use with an existing door having an existing door knob lock, said burglary prevention device comprising: a door knob cover including a base; a fastener attached to said base and extending outwardly therefrom; and a chain connected to said fastener and capable of being engaged with a bottom edge of the existing door; wherein said door knob cover is capable of fitting over the existing door knob lock in such a manner that access is prohibited to the existing door knob lock; wherein said base comprises a closed proximal end, an open distal end, and an outer surface extending from said closed proximal end to said open distal end; wherein said chain has a hook attached to a distal end thereof; wherein said base has a cylindrical shape and comprises first and second curvilinear slotted openings formed along said outer surface; wherein said first and second slotted openings are located between said closed proximal end and said open distal end; wherein said first and second slotted openings extend along first and second mutually exclusive paths defined along diametrically opposed portions of said outer surface; wherein said fastener is passed through said first and second slotted openings and has opposed ends connected together at a location exterior of said base thereby forming a generally ring shape.