Ammunition and explosives – Igniting devices and systems
Patent
1977-09-15
1979-09-18
Pendegrass, Verlin R.
Ammunition and explosives
Igniting devices and systems
F42B 708
Patent
active
041679040
ABSTRACT:
A shot compressor device for use in a shotgun cartridge containing shot wherein in a first embodiment or wad includes an upstanding tube centrally disposed on the bottom wall and parallel to the side walls of the cartridge with the shot being disposed in an area defined between the tube and the side walls above the bottom wall and wherein the tube is capable of being collapsed and compressed inwardly when the cartridge is fired by a shotgun. A collar for use in a shotgun cartridge containing shot having a cylinder integral with the base of the tube with an outer diameter substantially equal to the inside diameter of the cartridge wherein the cylinder is disposed between the shot and the cartridge and a plurality of flaps radially extending inwardly from the upper edge of the cylinder with each of the flaps being oriented above the upper surface of the shot wherein the flaps cooperate to prevent the shot from abrading the interior surface of a shotgun when the cartridge is fired. In a second embodiment the upstanding tube, alone or mounted on a base, is used in the shot substantially central in the cartridge. In a third embodiment the upstanding tube and the collar are separate components with the collar extending only partially down the side walls of the cartridge.
A method for directing the shot in a radially inward direction as the shot is travelling through the barrel of a shotgun.
REFERENCES:
patent: 875762 (1908-01-01), Winans et al.
patent: 1352938 (1920-09-01), Blair
patent: 3121391 (1964-02-01), Young
patent: 3208382 (1965-09-01), Foote et al.
patent: 3215076 (1965-11-01), Foote et al.
patent: 3289586 (1966-12-01), Horn et al.
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