Ammunition and explosives – Cartridges – Shot
Patent
1989-02-02
1989-06-27
Tudor, Harold J.
Ammunition and explosives
Cartridges
Shot
102513, F42B 700
Patent
active
048418668
ABSTRACT:
A tracer shotgun shell includes an improved tracer element and a single, integral wad member, which supports the tracer element within a shot charge. The tracer element is in the form of a spherical ball with a cylindrically-shaped, radially extending tail. A hole is formed through the tail and into the ball, past its center, and an igniter compound is positioned centrally within the ball. A preferred form of the igniter compound includes a mixture, by weight, of 87% barium peroxide, 11% magnesium, and 2% strontium nitrate. The single, integral wad member includes a transverse base section, having a downwardly extending perimetric flange; an upper transverse section; and a stem interconnecting and spacing the two sections. A tracer element mounting platform is formed centrally atop the upper transverse section, and extends into the charge of shot so as to permit shot to laterally encircle the platform. The tracer element mounting platform incorporates a centered concave depression corresponding in shape to the outer surface of the tracer element spherical ball, which provides extended surface contact between the tracer element and its mounting platform. A hole is centrally formed within the concave depression, to accept the tail of the tracer element, which connects with an ignition passage extending axially through the wad member.
REFERENCES:
patent: 1887990 (1932-11-01), Brownsdon et al.
patent: 3262390 (1966-07-01), Cowles et al.
patent: 3405638 (1968-10-01), Stoner
patent: 3760735 (1973-09-01), Schmitt
patent: 4080899 (1978-03-01), Luban
patent: 4389939 (1983-06-01), Ofuji
patent: 4553481 (1985-11-01), Ricci
Ingman John F.
Tudor Harold J.
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