E - Fixed Constructions – 05 – G
Patent
E - Fixed Constructions
05
G
109/5
E05G 1/02 (2006.01) E05G 5/00 (2006.01) E06B 3/90 (2006.01)
Patent
CA 1126585
SPECIFICATION I, GISBERTO PRETINI, of Via Macarata 3, S. Fredrano a Settimo, Pisa, Italy, an Italian Citizen, have invented certain new and useful improvements relating to PROTECTIVE DOOR SYSTEMS of which the following is a specification. ABSTRACT OF THE DISCLOSURE A protective door system is provided by a fixed wall and a mobile wall which has the shape of a sector of a cylinder with its axis arranged vertically. The mobile wall is rotatable about said axis between first and second operational positions. In the first operational position a first aperture is opened between the fixed and mobile walls which allows entry of a person from the exterior into a space between the walls and the walls co-operate to prevent passage from the space into the protected room. In the second operational position, a second aperture is opened between the walls which allows a person in the space to pass into the room and the walls co-operate to prevent passage from the exterior into the space. Automatic control means are provided for blocking the passage through the door of any unwanted persons.
342875
Fetherstonhaugh & Co.
Pretini Gisberto
LandOfFree
Protective door system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protective door system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective door system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-786588