Apparatus for cutting pipe

Details Apparatus for cutting pipe Apparatus for cutting pipe

1980-03-18

1982-10-19

Nelson, Peter A.

Ammunition and explosives

Blasting

Detonation wave modifying

102308, 102310, 102320, 102378, 89 1B, F42B 102

Patent

active

043544339

ABSTRACT:
The invention pertains to an improved annular shaped charge of a type to be used in the shaped charge carrier of pipe cutting or severing apparatus. The improved annular shaped charge is made up of eight or more shaped charge segments disposed in side to side abutting relation. Each shaped charge segment has a die formed metal band and charge load. The invention also pertains to methods of making said annular shaped charge and the shaped charge segments, which methods are described.

REFERENCES:
patent: 3013491 (1961-12-01), Poulter
patent: 3233688 (1966-02-01), Bell
patent: 3991679 (1976-11-01), Savitt et al.
patent: 4166417 (1979-09-01), Woodcock et al.
patent: 4280407 (1981-07-01), Allen et al.

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