US Patent 10107015 Electric latch retraction push-bar device

An electric latch retraction device comprising a housing for receiving a plurality of internal components of the electric latch retraction device. An actuator mechanism is included in the housing, the actuator mechanism is adapted to impart linear movement on a latch, such that the latch is retracted towards the housing. A holding mechanism is also included in the housing, the holding mechanism holds the latch in a fully retracted position when the actuator is off. Other embodiments can comprise internal conversion mechanisms to convert the motor's linear motion to a different directional motion, with the different directional motion retracting the latch.