Rotating latch for latching and unlatching a door

Details Rotating latch for latching and unlatching a door Rotating latch for latching and unlatching a door

2011-07-19

2011-07-19

Lugo, Carlos (Department: 3673)

Closure fasteners

Bolts

Sliding

C292S216000, C292S201000, C292SDIG023

Reexamination Certificate

active

07980603

ABSTRACT:
A locking system wherein the latch is rotatable to provide either a first beveled surface for use as a ramp in latching or a second beveled surface for use as a ramp in unlatching. An entire latch module may be rotated about its axis by a rotary solenoid to achieve this function, and the first and second ramping surfaces are physically the same surface repositioned by rotation 180°. Alternatively, a releasable latch has a beveled surface for engaging a striker plate during bolt entry and a non-beveled surface for locking. The latch is pivotable to allow the non-beveled surface to become the beveled ramp for unlocking. The releasably pivotable latch mechanism may be used with a deadlock. The mechanism is readily incorporated into a rim exit device for releasably securing a door such as an emergency exit and may be actuated either electrically or manually.

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Mendez, Perez J., “International Search Report,” mailed on Jan. 22, 2010 for international application No. PCT/US09/063097, with the international filing date of Nov. 3, 2009, Rijswijk, Netherlands.
Mendez, Perez J., “Written Opinion of the International Searching Authority,” mailed on Jan. 22, 2010 for international application No. PCT/US09/063097, with the international filing date of Nov. 3, 2009, Rijswijk, Netherlands.

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