Patent ID: 6973813

Claim:
A re-keyable lock comprising: a cylinder rotatably supported in a housing between a locked position and an unlocked position, said cylinder having a longitudinal slot and a transverse channel; a locking mechanism including a wafer tumbler resiliently supported in said transverse channel and positionable therein between an engaged position wherein said wafer tumbler engages said housing and a disengaged position wherein said wafer tumbler disengages said housing, said wafer tumbler including a base element having an opening formed therethrough which is at least partially aligned with said longitudinal slot, a rider element positionable within said transverse channel relative to said base element and a coupling element integral with the rider element and positionable between a first position wherein said base element is coupled to said rider element and a second position wherein said base element is uncoupled from said rider element, wherein said coupling element comprises a flexible element biased to couple said base element and said rider element, said flexible element being deflectable to uncouple said base element and said rider element; and a re-keying mechanism operable when said cylinder is in said unlocked position to move said coupling element from said first position to said second position for repositioning said rider element relative to said base element such that the lock is re-keyed.