A locking mechanism is provided for a portal closure that includes a first side, and a second side The portal closure including a latch movable into and out of engagement with a latch receiver and a latch driving device coupled to the latch for moving the latch into and out of engagement with the latch receiver The latch driving device includes a controllable lock member movable between a locked position where the latch is fixedly positioned in the latch receiver and an unlocked position where the latch is capable of being disengaged from the latch receiver and a second side latch driving device mover disposed on the second side of the portal closure. The locking mechanism includes a first side latch driving device mover disposed on the first side of the portal closures, and coupled to the latch driving device for moving the latch driving device to cause the latch to move into and out of engagement with the latch receiver. A signal generator is provided for generating a human detectable signal. A lock actuator is coupled to the controllable lock member for moving the locking mechanism between a first normal position wherein the second side lock driving device is capable of being moved between an unlocked position to permit the latch to be disengaged from the latch receiver and a locked position where the latch is prevented from being disengaged from the latch receiver; and a second emergency position wherein the second side lock driving device is in the locked position, and the signal generator is actuated to generate a human detectable signal. A power source is provided for powering the signal generator when the locking mechanism is in the second emergency position. A switch is coupled between the power source and the signal generator for controlling the flow of current between the power source and the signal generator.

A door fitting having a handle that can be locked on one side, including at least one rosette for contact with a door leaf and a shaft element for forming an operative connection to the locking mechanism of a lock unit fitted into the door leaf, and an adapter element being fitted in a neck section of the handle and being held on the shaft element. In order to create a simple embodiment of a handle that can be locked on one side, according to the invention, it is provided that a locking device is held in or on the neck section of the handle, which is brought by means of a manual actuation into a blocking position, in which the handle can be rotation ally blocked against the rosette by means of the locking device.

A locking mechanism is provided for a portal closure that includes a first side, and a second side The portal closure including a latch movable into and out of engagement with a latch receiver and a latch driving device coupled to the latch for moving the latch into and out of engagement with the latch receiver The latch driving device includes a controllable lock member movable between a locked position where the latch is fixedly positioned in the latch receiver and an unlocked position where the latch is capable of being disengaged from the latch receiver and a second side latch driving device mover disposed on the second side of the portal closure. The locking mechanism includes a first side latch driving device mover disposed on the first side of the portal closures, and coupled to the latch driving device for moving the latch driving device to cause the latch to move into and out of engagement with the latch receiver. A signal generator is provided for generating a human detectable signal. A lock actuator is coupled to the controllable lock member for moving the locking mechanism between a first normal position wherein the second side lock driving device is capable of being moved between an unlocked position to permit the latch to be disengaged from the latch receiver and a locked position where the latch is prevented from being disengaged from the latch receiver; and a second emergency position wherein the second side lock driving device is in the locked position, and the signal generator is actuated to generate a human detectable signal. A power source is provided for powering the signal generator when the locking mechanism is in the second emergency position. A switch is coupled between the power source and the signal generator for controlling the flow of current between the power source and the signal generator.

An electric strike having two independent keepers. The strike works with a lockset having both a deadbolt and a mortise lock bolt. A latch adapted to engage a deadbolt is provided with a solenoid to lock or unlock the latch. Another latch adapted to engage a mortise lock bolt is provided with a solenoid to lock or unlock the latch. Each latch is independently operable.

A door fitting having a handle that can be locked on one side, including at least one rosette for contact with a door leaf and a shaft element for forming an operative connection to the locking mechanism of a lock unit fitted into the door leaf, and an adapter element being fitted in a neck section of the handle and being held on the shaft element. In order to create a simple embodiment of a handle that can be locked on one side, according to the invention, it is provided that a locking device is held in or on the neck section of the handle, which is brought by means of a manual actuation into a blocking position, in which the handle can be rotationally blocked against the rosette by means of the locking device.

An electric strike having two independent keepers. The strike works with a lockset having both a deadbolt and a mortise lock bolt. A latch adapted to engage a deadbolt is provided with a solenoid to lock or unlock the latch. Another latch adapted to engage a mortise lock bolt is provided with a solenoid to lock or unlock the latch. Each latch is independently operable.

The invention relates to locks in which a sliding latch of an interior door is used as a locking bar. The invention makes it possible to control conventional latches, turning them into reliable, fully-fledged locks which are most suitable for interior doors and which can be easily locked and unlocked with a single touch and which are also capable of allowing a door to be opened from the outside in the event of an emergency. The invention is a system of interacting mechanisms universal to any door latches, which control a rod having a square section characterized in that a mechanism for soft locking a locking latch is disposed therein, the mechanism being activated by a simple touch of a button on the interior handle of the door. In the locked position, the system prevents direct forceful loads on the mechanism when both door handles are turned, by allowing the handles to move within the limits of their own return springs. The technical result of the invention is a system which can be universally combined with spring-loaded or magnetic door latches, is simple to install and remove when handles are replaced, and is easy to use, durable, and cheap to manufacture from polymers by die casting or 3D printing.