Patent ID: 6105404
Filing Date: 2000-08-22
Classification: E05B,Y10T

Abstract:
In combination:a) a key having a groove extending generally lengthwise along a side of said key;b) a cylinder lock including:a shell having a bore for receiving a rotatable plug;a rotatable plug located within said shell and having a keyway configured to receive said key;at least one rotatable disc within said plug, each said rotatable disc having a groove-following element that fits within said groove of said key when said key is inserted into said keyway and which rotates said rotatable disc around an axis via said key; andwherein said rotatable disc initially extends outward from a circumference of said plug and engages said shell, said rotatable disc is movable via said key so that a portion of said rotatable disc moves inward toward said plug to disengage from said shell and to allow said plug to rotate when said key is fully inserted into said keyway.