SHOT CONCENTRATOR

• US 3,724,378 A
• Filed: 05/13/1969
• Issued: 04/03/1973
• Est. Priority Date: 05/13/1969
• Status: Expired due to Term

• Current Assignee: Lee Ayers Knight, Randolph Bentley Knight
• Original Assignee: Lee Ayers Knight, Randolph Bentley Knight
• Inventors: Knight, Randolph Bentley, Knight, Lee Ayers
• Primary Examiner(s): Stahl, Robert F.
• Application Number:
  US04/824,219
• Time in Patent Office: 1,421 Days
• Field of Search: 102/42,42C,85,95 244/3.1
• US Class Current: 102/456
• CPC Class Codes: F42B 12/64 the submissiles being of shot- or flechette-type
• CPC Class Codes: F42B 7/04 of pellet type

Abstract

A shot concentrator adapted to be mounted in the casing of a shotgun shell having powder and a primer therein. The concentrator includes a cylindrical hollow tube having a capped forward end and an elongated stem projecting from its closed rear end. The stem has a passage therethrough which communicates with the interior and the exterior of the tube. A charge of powder and a charge of shot are positioned in the tube. A fuse is located in the stem in communication at one end with the charge of powder in the tube and adapted for communication at the other end with the powder in the casing so that when the primer is detonated, the shot concentrator will be expelled from the casing by the explosion of the powder in the casing and the fuse will be simultaneously ignited. The fuse has a predetermined burning time to facilitate the flight of the shot concentrator for a desired distance before the charge of powder in said concentrator is ignited by the fuse and the charge of shot is thereby separated from the shot concentrator. In this manner, a more accurate and more concentrated pattern of shot is provided at a greater greater distance from the point of initial firing of a shotgun shell.

Claims

1. A shot concentrator adapted to be mounted in the casing of a shotgun shell having powder and a primer therein, said concentrator comprising:

a cylindrical hollow tube of resilient plastic material having a capped forward end of lesser diameter than the rear end of the tube and an elongated stem projecting from the closed rear end thereof;

an annular skirt extending from the closed rear end of the tube and concentric with the stem to facilitate stability of the concentrator in flight;

said stem having a passage therethrough communicating with the interior and exterior of said tube;

a charge of powder and a charge of shot in said tube;

a fuse in said stem communicating at one end with the charge of powder in said tube and adapted to communicate at the other end with the powder in the casing so that when the primer is detonated, the shot concentrator will be expelled from the casing free of the casing and all other components therein by the explosion of the powder in the casing and said fuse will be simultaneously ignited;

the fuse having a predetermined burning time to facilitate the flight of said shot concentrator for a desired distance before the charge of powder in said concentrator is ignited by said fuse and said charge of shot is separated from said shot concentrator thereby providing a more accurate and more concentrated pattern of shot at a greater distance from the point of initial firing of a shotgun shell;

resilient retention means in the tube to maintain the relative position of the contents of the tube and consequent distribution of weight during flight;

spaced longitudinal ribs are on the exterior surface of the tube to thereby maintain weight distribution and stability of the tube during flight prior to ignition of the charge of powder therein;

the resilient retention means including interengaging resilient surfaces on the cap and the tube in interlocking engagement during flight and adapted to be easily resiliently disengaged upon ignition of the powder and forces exerted thereby;

the resilient retention means including resilient sealing means between the powder and the shot to maintain separation therebetween during flight and to facilitate uniform distribution of shot upon separation from the shot concentrator; and

said resilient sealing means including an annular interior shoulder on the inside of the tube with the charge of powder positioned on one side of said shoulder and the charge of shot on the other side of said shoulder and a resilient wad on said shoulder in sealing engagement therewith and positioned between said powder and said shot in order to maintain the relative positions of said powder and said shot prior to ignition of the powder in the concentrator.