Patent ID: 6425611
Filing Date: 2002-07-30
Classification: E05B,E05C,Y10S,Y10T

Abstract:
A lock handle assembly for a casement window having a movable sash received in a frame, the frame including a cavity and an inside surface, the lock handle assembly comprising:an escutcheon comprising an inner side and an outer side, the escutcheon being securable to the frame inside the cavity with at least a portion of the inner side of the escutcheon being disposed at the inside surface of the frame, the escutcheon comprising an upper wall and a lower wall with an elongated recess disposed therebetween for receiving a handle, the handle extending into the recess and comprising one end detachably connected to a drive disk, the drive disk being pivotally connected to a fixed gear plate at a rotational axis, the fixed gear plate being fixedly connected to the frame, the fixed gear plate comprising an arcuate gear segment, the drive disk further being connected to a drive gear link, the drive gear link comprising a proximal end and a distal end, the proximal end of the drive gear link comprising an arcuate gear segment in mesh with the arcuate gear segment of the fixed gear plate, the distal end of the drive gear link being connected to a connecting link at a connecting axis and the drive disk.