Ammunition and explosives – Igniting devices and systems
Patent
1977-03-21
1977-11-15
Tudor, Harold
Ammunition and explosives
Igniting devices and systems
102 921, F42B 502
Patent
active
040580628
ABSTRACT:
A 30-30 casing has sharpened rings formed in its enlarged base. Powder is packed in the casing, and it is sealed by inserting a primer portion, which is a 38 caliber pistol shell with a primer, in the open end of the packed casing and compressing the edge of the casing in the base area of the primer portion.
Radial extensions on the casing hold the cartridge centered in a barrel spaced from a firing pin.
The primer is ignited by hitting the sharpened rings against an underwater object and thus driving the cartridge and primer rearward against a fixed firing pin. The casing rockets forward out of the barrel, leaving the primer piece and smashing into the underwater object while the powder burns.
REFERENCES:
patent: 320393 (1885-06-01), Pierce
patent: 1899618 (1933-02-01), Holthe
patent: 2708860 (1955-05-01), Arpin
patent: 2918002 (1959-12-01), Pons
patent: 3157126 (1964-11-01), Blondeau
patent: 3274936 (1966-09-01), Messina et al.
patent: 3300888 (1967-01-01), Belcher et al.
patent: 3613584 (1971-10-01), Hendricks
patent: 3618244 (1971-11-01), Johnson
patent: 3621781 (1971-11-01), Johnsen
Blondeau Publication, Mar. 1966.
Aqua Craft, Inc.
Tudor Harold
Wray James C.
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