Patent ID: 6044674
Filing Date: 2000-04-04
Classification: E05B,F02B,F16B,Y10S,Y10T

Abstract:
A locking assembly for preventing access to an enlarged diameter portion of a threaded fastener having a shaft, the locking assembly comprising:a) a body having a first end, a second end, and defining a chamber within said body, said chamber having a width and adapted to receive the enlarged portion of the fastener and for allowing rotational tightening and loosening of the enlarged portion within the chamber;b) a shaft aperture in said first end of the body communicating with the chamber, said shaft aperture being of a minimum width less than the width of the chamber and adapted to prevent passage of the enlarged portion through the shaft aperture and allow passage of the shaft through the shaft aperture;c) a locking screw having a first end and a second end and a threaded midportion therebetween;d) a plug aperture in said second end of said body having a greater width than the width of the shaft aperture and adapted to allow passage of the enlarged diameter portion of the fastener into the chamber;e) a locking screw aperture in said body extending from the exterior of the side of the body to the plug aperture and intersecting the plug aperture, said locking screw aperture being threaded to accept said first end and midportion of said locking screw and being of such a length to allow the locking screw to be fully seated and of such length that when said locking screw is fully seated in the locking screw aperture, the first end of the locking screw projects into the plug aperture and the second end is seated rigidly to prevent axial movement of the locking screw and accessible from the exterior of the body;f) a plug having a lower portion sized to fit within an upper portion of said plug aperture, said lower portion of said plug having a recess located so as to be aligned with the locking screw aperture when the plug is inserted into the plug aperture and the recess being adapted to accept said first end of said locking screw, so that placement of said first end of said locking pin through said locking screw aperture and into the recess prevents removal of the plug from the body and, by so doing, is for physically blocking removal from the chamber of the enlarge portion when the enlarged portion is contained in the chamber.