Movable or removable closures – Plural wings radiate from common pivot; i.e. – revolving
Patent
1995-06-12
1996-08-06
Kannan, Philip C.
Movable or removable closures
Plural wings radiate from common pivot; i.e., revolving
109 8, E05D 1502
Patent
active
055422110
ABSTRACT:
A revolving security door for the controlled passage of persons from a non-protected environment to a protected environment, for example a bank, which permits the normal transit of persons even in the event of the interception of an unwelcome person, including a cylindrical chamber formed inside a structure, a turnstile rotatable within the chamber in a predetermined sense of rotation and having sectors each for accommodating a person, an entry aperture and an exit aperture formed in the structure, a sensor associated with the structure for detecting an unwelcome person or object and for emitting an alarm signal, an emergency door associated with the exit aperture and activated to close by the said alarm signal, the said door comprising a first panel and a second panel which are held together and made to rotate in the opposite sense of rotation from that of the turnstile, after the door has been closed by the first panel and before the door is opened by the opening of both panels.
REFERENCES:
patent: 3285209 (1966-11-01), Pace
patent: 4060039 (1977-11-01), Lagarrigue
patent: 4341165 (1982-07-01), Calandritti et al.
patent: 4557073 (1985-12-01), Sandling
Kannan Philip C.
Tonali S.p.A.
LandOfFree
Revolving security door for banks and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Revolving security door for banks and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Revolving security door for banks and the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2183350