Patent ID: 6216502
Filing Date: 2001-04-17
Classification: E05B,Y10T

Abstract:
A new and improved keyless locking system for conveniently locking and unlocking a deadbolt of a door from a remote location without modifying the existing deadbolt comprising, in combination:a housing in a generally rectilinear configuration having a planar plate constituting a front wall with an upper edge, a lower edge, and parallel side edges therebetween and with peripheral edge walls extending inwardly from the upper edge, lower edge and side edges to form an open housing therebetween;a rotatable assembly rotatably secured to the front wall adjacent to the lower edge, the rotatable assembly including a visible rotator adapted to be manually turned or turned from a remote location and with a cylindrical shaft extending through the front wall and with a C-shaped channel member extending interiorly therefrom, the channel member including a vertical plate positionable external of the deadbolt to be turned and with inwardly extending sidewalls to encompass and contact the sides of the deadbolt to cause the turning thereof, the channel member adapted to be rotated upon the rotation of the shaft;a gearing assembly including a large gear having peripheral teeth coaxially coupled to the channel member and the shaft for rotation and with a smaller gear having peripheral teeth in mating contact with the teeth of the large gear for mutual rotation therebetween and with a worm gear having spiral teeth in contact with the smaller gear whereby rotation of the worm gear will rotate the smaller gear and then the large gear to rotate the channel member and deadbolt to lock and unlock the door;a motor within the housing with an associated battery to drive the worm gear;an electronic assembly to effect the driving of the motor and worm gear in a first direction and then a second direction with an associated switch under the control of an operator for initiating the driving of the electronic assembly and motor in either one direction or the other as a function of the nature of the deadbolt to be turned;a control member adapted to be held by the hand of the user, the control member including a button adapted to be pressed to drive the motor a predetermined number of revolutions to rotate the worm gear, smaller gear, large gear, and channel member for either locking or unlocking the door; andan adhesive secured to the housing interiorly of the edge walls to secure the housing onto a door with the channel member over the deadbolt of the door.