Shaped charge assembly with truncated liner

Details Shaped charge assembly with truncated liner Shaped charge assembly with truncated liner

1997-03-14

1998-07-07

Nelson, Peter A.

Ammunition and explosives

Blasting

Patterned blasting

102313, 102307, 175 452, 175 46, F42B 300, F42D 300

Patent

active

057772576

ABSTRACT:
The invention relates to an explosive charge assembly for cutting tubular members, particularly underwater. The assembly is lowered into the tubular member to a distance where the cut is to be performed. A shaped charge carrier has a pair of parallel circular plates, a casing unitary connected to the plates and a truncated shaped charge liner. An inflatable bladder surrounding the casing expands to create a stand off distance between the wall of the tubular member and the shell of the assembly. A plurality of centralizer members allow to adjust position of the shell in the tubular member prior to detonation.

REFERENCES:
patent: 3119332 (1964-01-01), Grebe et al.
patent: 4724105 (1988-02-01), Owen
patent: 4787315 (1988-11-01), Kenny
patent: 4862964 (1989-09-01), George et al.
patent: 5177321 (1993-01-01), Kenny
patent: 5211224 (1993-05-01), Bouldin
patent: 5429192 (1995-07-01), Huber et al.
patent: 5513570 (1996-05-01), Mulcahy

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