Apparatus for severing tubular members

Details Apparatus for severing tubular members Apparatus for severing tubular members

1987-08-31

1988-11-29

Nelson, Peter A.

Ammunition and explosives

Blasting

Borehole loading

102312, 299 13, F42B 300

Patent

active

047873159

ABSTRACT:
The invention relates to an apparatus for explosively severing tubular members at a pre-designated severance level. The apparatus is designed to deliver a detonation signal to a ring-shaped explosive charge, to an annularly formed detonation signal receiving locations, so that explosion takes place substantially simultaneously about the circumference of the explosive charge about internal periphery of the tubular member at the severance level.

REFERENCES:
patent: 3654866 (1972-04-01), Fritz
patent: 4354433 (1982-10-01), Owen
patent: 4357873 (1982-11-01), Jager
patent: 4669540 (1987-06-01), Luoma et al.
patent: 4694754 (1987-09-01), Dines et al.

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