Abstract: A mortise lock comprising a housing, a locking mechanism, a locking latch and one or more bolts displaceable between a locked position and an unlocked position; the locking mechanism fitted with a lock cylinder, a handle assembly comprising an inside locking latch activator articulated with the locking latch and the bolts and an independent outside locking latch activator articulated only with the locking latch, a locking latch sensor for selectively arresting the locking latch, and a deadbolt mechanism for arresting the bolts at their extended, locked position.

Abstract: A locking system for building door includes a lock latch engaged with a door handle through an engagement mechanism comprising inner, intermediate and outer base members coaxially rotatable relative to each other. The inner member is connected with the handle. The intermediate member is connected with the latch and provided with a radially movable engagement member. In the door locking state, the engagement member enters a notch in the inner member and contacts with an underspringed pusher, which is movably located in the outer base member allowing expelling the engagement member from the notch and free rotating the inner member. In the door unlocking state, a blocking bar controlled by user prevents the engagement member from expelling out of the notch, thereby engaging the inner and intermediate members and providing their joint rotation by handle.

Abstract: A module for use in a fire extinguishing system and comprising a housing which contains detector apparatus for detecting characteristics of a fire or an incipient fire; control apparatus adapted to be actuated by detection at the detector apparatus; and fire extinguishing apparatus adapted to be discharged by the control apparatus.