Explosive plug for blocking tubes

Details Explosive plug for blocking tubes Explosive plug for blocking tubes

1980-07-08

1982-09-07

Nelson, Peter A.

Ammunition and explosives

Blasting

Blasting plug including an opening for a fuse, fuse ignitor,...

102323, 102333, 102320, 228 25, 138 89, 138 97, 376305, F42D 300

Patent

active

043477909

ABSTRACT:
An explosive plug for blocking tubes comprises a tubular metal body closed at one end by a solid head and having at the other end a surface-contact region containing at least two spaced apart charges actuable by a detonator. The metal body when placed in a tube to be blocked is so arranged that the surface-contact region is coaxial with but at a distance from the tube so that successive explosion of the charges causes the surface-contact region to be radially spattered against the interior of the tube thus producing a reliable metal weld or welds extending along a substantial part of the end region of the tube.

REFERENCES:
patent: 1192958 (1916-08-01), Tucker
patent: 1751015 (1930-03-01), Mora
patent: 3590877 (1971-07-01), Leopold et al.
patent: 3724062 (1973-04-01), Cantrell et al.
patent: 3781966 (1974-01-01), Lieberman
patent: 3785291 (1974-01-01), Bergbaver et al.
patent: 3919940 (1975-11-01), Ploger et al.
patent: 4028789 (1977-06-01), Loch
patent: 4074630 (1978-02-01), Zondag
patent: 4158370 (1979-06-01), Larson

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