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US 9,033,378 B2Granted
Security door lock device
OwnerHeath O'Brien Jenkinsinventor
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OwnerHeath O'Brien Jenkinsinventor
Estimating the term…
A high security adjustable keyless locking contrivance for preventing the forced opening of a hinged door of unoccupied homes or buildings. An engaging apparatus that incorporates a first armor structural plate combined with a first structural cylinder having a pair of first slots and a connecting bolt shaft, which first structural cylinder inserts into a conventional door knob bore hole with the bolt shaft passing through the existing door latch assembly in concert. A second armor structural plate combined with a second structural cylinder that matingly connects to said first structural cylinder from the opposite side of the hinged door, allowing the penetration of the connecting bolt shaft through the second armor structural plate bolt hole which will conjoin the two devices with a security fastener, thus sandwiching and securing the hinged door and door jamb between the two armor structural plates.
An adjustable security lock for use on door knob bore hole and door latch mechanism located on a door and a door frame, comprising:
An adjustable security lock for use on door knob bore hole and door latch mechanism located on a door and a door frame, comprising:
Dependencies are inferred from the claim text.