Anti-panic control device for doors

Closure fasteners – Bolts – Emergency operating means

Reexamination Certificate

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Details

C292S150000, C292S279000, C070S092000

Reexamination Certificate

active

07731248

ABSTRACT:
Anti-panic control device for doors, comprising, a base structure, a spring latch mounted rotatable relative to the base structure around a main axis, the spring latch being able to rotate between a closed position and an open position and being associated to an elastic element which tends to maintain the spring latch in the open position, the spring latch having a slit able to receive a retaining element. a first locking element movable between an arresting position and a disengaged position, an actuating device able to move the first locking element in the disengaged position, and a second locking element movable relative to the spring latch between an arresting position and a disengaged position, the second locking element being thrust by elastic member towards the disengaged position and being thrust towards the locking position by the retaining element, the second locking element co-operating with the first locking element in such a way as to lock the spring latch in closed position when the first and the second locking elements are both in arresting position.

REFERENCES:
patent: 1677271 (1928-07-01), Carroll
patent: 2765648 (1956-10-01), Hatcher
patent: 2991107 (1961-07-01), Eichacker et al.
patent: 4969343 (1990-11-01), Luker
patent: 5322332 (1994-06-01), Toledo et al.
patent: 6953211 (2005-10-01), Di Vinadio
patent: 3244647 (1984-06-01), None
patent: 0 481 931 (1992-04-01), None
patent: 1 050 642 (2000-11-01), None
patent: 2 814 190 (2003-06-01), None
patent: 2 861 789 (2005-05-01), None
patent: 2 863 000 (2005-06-01), None
EP Search Report, Application No. 05425680.5-2311, dated Aug. 21, 2006.

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