Patent ID: 11879270
Assignee: SAFEHINGE PRIMERA LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 15:
16. A method of ameliorating door barricading by an unauthorised user, the method comprising a nonemergency use unlocking method where a primary door handle is configured to unlock a door lock of a barricaded door, and an alternative unlocking method for use in an emergency situation where the barricaded door is locked, and during the alternative unlocking method the door lock cannot be unlocked by the primary door handle, the method comprising the steps of:
providing a door with a door handle assembly comprising a lock, a primary door handle for normal, non-emergency use, and an integrated pivotal auxiliary door handle for use in an emergency
stowing the auxiliary door handle in an inactive configuration, whereby the auxiliary door handle is inoperable when stowed;
reconfiguring the auxiliary door handle to pivot from the stowed, inactive configuration to an activated configuration, whereby the auxiliary door handle in the activated configuration is operable to operate the lock;
operating the lock with the auxiliary door handle when in the activated configuration;
wherein the auxiliary door handle is only reconfigurable from the stowed, inactive configuration to the activated configuration with use of a key.