Patent ID: 9169667
Filing Date: 2015-10-27
Classification: E05B

Abstract:
1. A rekeying tool for a lock assembly having a lock body, cylinder, upper and lower tumbler pins and upper springs, the rekeying tool comprising: a cylindrically elongated follower having opposing first and second ends, the first end being hollow and having a V-shaped or U-shaped groove; a first cylindrically elongated solid piston being resiliently positioned in the first hollow end of the follower, the first piston having a cut-through channel and a V-shaped or U-shaped groove extending inward from an end of the first piston; and a first pin extending a cross-section of the first hollow end of the follower and passing though the cut-through channel of the first solid piston to guide reciprocating travel of the piston from a first inwardmost position to a first outwardmost extension, the V-shaped or U-shaped groove of the first solid piston being substantially aligned with the corresponding V-shaped or U-shaped groove of the first hollow end of the follower when the first piston is at the first outwardmost extension.