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Priority claimed from ES480942Aexternal-prioritypatent/ES480942A1/en
Priority claimed from ES480943Aexternal-prioritypatent/ES480943A0/en
The entrance door safety device protects householders from unwanted intruders. A fixed frame (3) accommodates a conventional internal door (1) back-to-back with a protecting external door (2) allowing full visibility through it and the passage of small items. Both doors hinge on the same upright and in the same direction and have a lock. The doors are coupled together, the outer door being operated via the inner one. Thus the caller can first be observed by opening the inner door only.
PT71069A1979-05-251980-04-08Door assemblage for personal security
PT71069A
(en)
DEVICE TO ADAPT A PANIC LOCK TO THE MEANING OF OPENING A DOOR, PREPARE THIS LOCK TO OPEN ONLY ON ONE SIDE AND TEMPORARILY ENABLE THE OPENING FROM THE OPPOSITE SIDE