Patent ID: 6112563
Filing Date: 2000-09-05
Classification: G07C,Y10T

Abstract:
A locking device for closure elements that are hingedly mounted to a building aperture with a door latch, and comprising:A) a housing adapted to be mounted within a closure element;B) a spring loaded locking tongue member retractable within said closure element from a distended position protruding outwardly from said closure element into a door latch;C) gear means for moving said locking tongue member between said retractable and distended positions including an elongated arm member having first and second ends, said first end being pivotally mounted to a cooperative point within said housing and said second end being displaced between two angular positions by said gear means, and said second end being cooperatively engaged to said locking tongue member wherein said gear means includes a gear member having an off-center pin perpendicularly mounted thereon so that said off-center pin causes the angular movement of said elongated arm member;D) worm gear means in meshed engagement with said gear means so that movement of said gear means can only be caused by moving said worm gear means;E) electrical motor means for rotating said worm gear means;F) means for actuating said electrical motor means;G) electrical means for powering said electrical motor means, and said means for actuating said electrical motor means; andH) receiver means housed within said housing for activating said electrical means for powering said electrical motor means; andI) transmitter means for activating said receiver means and being remotely disposed with respect to said receiver means.