Patent ID: 6584718
Filing Date: 2003-07-01
Classification: F41A

Abstract:
A locking mechanism in combination with a firearm having a firing chamber with an interior wall and a barrel having a proximate end and a distal end and extending from said firing chamber the distal end and said barrel having an interior bore which communicates with said firing chamber such that there is a shoulder between said firing chamber interior wall and said bore, said lock comprising:a rod extending through said bore of said barrel from said proximate end to said distal end; and expansion means consisting of a collet, nut, spring, end cap and threaded rod positioned in said firing chamber and connected to the proximate end of the rod and being positionable in an expanded position to engage the firing chamber interior wall to disable the firearm from firing, Wherein in an unexpanded position the expansion means is disengaged from the firing chamber interior wall, Wherein the expansion means engages the shoulder between said firing chamber and said bore, Wherein the rod has a longitudinal axis and the rod is rotated about said longitudinal axis to selectively move the expansion means selectively from an unexpanded unlocked position to the expanded locked position, Wherein a lock control means is operationally positioned on the distal end of the rod to manipulate the rod to selectively move the expansion means axially between the unexpanded unlocked position to the expanded locked position, Wherein at its proximate end the rod has a proximate threaded section, and the expansion means is a nut having 6 grooves and collet having 6 fingers positioned axially outwardly from the nut, and the proximate threaded section of the rod is not attached to the nut until the rod is rotated clockwise about its longitudinal axis by the lock control means causing the nut to thread onto the rod and move relative to the collet in a proximate direction to expand the fingers axially outwardly to engage the shoulder between the bore and the firing chamber interior wall, Wherein the rod has a distal threaded section and said distal threaded section is connected to the lock control means which is a key receiving means, Wherein a key is applied to the key receiving means to selectively allow the rod to be rotated about its longitudinal axis, Wherein the rod is concentrically positioned inside a tube, Wherein there is an end cap on the distal end of the rod and the end cap keeps spring and nut on rod in unlocked position.