Ammunition and explosives – Blasting – Terrain clearance
Patent
1994-12-12
1997-09-23
Nelson, Peter A.
Ammunition and explosives
Blasting
Terrain clearance
102446, 102471, 102502, 102531, 227 9, F42D 300, F42B 532, B25C 108
Patent
active
056707371
ABSTRACT:
An impulse generating tool for breaking up rock has a barrel, a breech body for a cartridge (50) loaded with gas producing propellant (70) and a firing mechanism for firing the cartridge. A hole is drilled in the rock and filled with water. The barrel is passed down the hole and the cartridge is fired. Shockwaves break up the rock. A firing pin (42) of the firing mechanism is off-set (56) from a centreline (54) of the breech body, and the cartridge, which is of a shotgun type, has a rim-fire percussion cap (63) complemental to the off-set of the firing pin. Conventional shotgun ammunition cannot be fired with the tool, and cartridges for the tool cannot be fired by a conventional shotgun.
REFERENCES:
patent: 1107519 (1914-08-01), Hoagland
patent: 2341310 (1944-02-01), Calhou
patent: 2663259 (1953-12-01), Catlin
patent: 2770194 (1956-11-01), Kopf
patent: 2920363 (1960-01-01), De Caro
patent: 3087428 (1963-04-01), Frech
patent: 3147708 (1964-09-01), Ferguson
patent: 3754509 (1973-08-01), Gogen
patent: 3786761 (1974-01-01), Ciccone
patent: 4364506 (1982-12-01), Schneider
patent: 4539911 (1985-09-01), Flatau
patent: 4565312 (1986-01-01), Berry
patent: 4674409 (1987-06-01), Lopata
patent: 4877171 (1989-10-01), Almeras
patent: 4920885 (1990-05-01), Bowman et al.
patent: 4955157 (1990-09-01), Brighton et al.
patent: 5216199 (1993-06-01), Bjerke et al.
patent: 5363769 (1994-11-01), Bellak et al.
patent: 5394635 (1995-03-01), Stuart
patent: 5433147 (1995-07-01), Brede et al.
Denel (Proprietary) Limited
Nelson Peter A.
LandOfFree
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