Patent ID: 6032398
Filing Date: 2000-03-07
Classification: F41A,F41C

Abstract:
A device for installing a choke tube in a shotgun barrel and removing said choke tube therefrom, comprising:an upper handle having a first end and a second end;a pivot member having a first end and a second end;a lower handle having a first end and a second end, said pivot member pivotally mounted to said second end of said lower handle, said pivot member's first end being pivotally mounted to said second end of said upper handle;a tapered expander having an upper portion, said tapered expander disposed at said first end of said lower handle, said tapered expander having an aperture defined therein;a draw bar having a first end and a second end, said draw bar at its first end being attached to said first end of said upper handle, said draw bar passing through said aperture at the first end of said lower handle;a gripper expander including:a plurality of expander elements, each having a top, a bottom and an inner surface and an outer surface, said expander elements being inwardly tapered at their top inner surface and bottom inner surface, said gripper expander disposed around said draw bar beneath said tapered expander;a tapered expander nut having a bottom said tapered expander nut attached to said second end of said draw bar;a rubber-like sleeve positioned around said gripper expander such that when said upper handle is pivoted on said pivot member toward said lower handle, said draw bar moves upward, pulling said expander nut against the bottom of said expander elements and moving said expander elements upwards against said tapered expander with said expander elements being forced outwards by the action of the tapered expander and tapered expander nut contacting said inward taper on said top and bottom of said inside of said expander elements, thereby increasing the diameter of said rubber-like sleeve to engage the bore of the choke tube for rotation of said choke tube.