A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A low-profile door barricade can be deployed rapidly from within a room, such as a classroom, to prevent entry by an assailant. The barricade may include quick release and locking mechanisms that are inaccessible to the assailant and can only be operated from within the room.
A low-profile door barricade can be deployed rapidly from within a room, such as a classroom, to prevent entry by an assailant. The barricade may include quick release and locking mechanisms that are inaccessible to the assailant and can only be operated from within the room.
DEPLOYABLE DOOR BARRICADE
RAMAN JAMES (author)
2019-10-31
Patent
Electronic Resource
English
IPC:
E05C
Riegel oder Feststellvorrichtungen für Flügel, insbesondere für Türen oder Fenster
,
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS