A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Abstract 10007] The disclosed Door Knob Shackle is a two half spherical concave device that comes together to resemble a complete doorknob. Once applied over doorknob and a locking mechanism like pad locks are added, the device will render the door knob non-functional by way of stoping any grip or purchase that would enable the knob to be turned. See below 3D models and photo of working Door Knob Shakle
Abstract 10007] The disclosed Door Knob Shackle is a two half spherical concave device that comes together to resemble a complete doorknob. Once applied over doorknob and a locking mechanism like pad locks are added, the device will render the door knob non-functional by way of stoping any grip or purchase that would enable the knob to be turned. See below 3D models and photo of working Door Knob Shakle
Door Knob Shackle
CAMILLERI MICHAEL JOSEPH (author)
2018-12-06
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser