Apparatus for severing tubular members

Details Apparatus for severing tubular members Apparatus for severing tubular members

1990-08-28

1991-07-16

Hunt, Brooks H.

Ammunition and explosives

Blasting

Terrain clearance

102312, 299 13, 166299, 175 57, F42D 300, F42B 300, E21B 700

Patent

active

050315404

ABSTRACT:
The invention relates to an apparatus for severing tubular members and is provided with a carrier, which carries a sparging assembly and an explosive assembly downwardly into the tubular member to be severed. The outlet of the sparging assembly is below the lower end of the carrier and is at a level adjacent to the level of the explosive charge carried by the explosive assembly. The sparging assembly dislodges and agitates the debris accumulated within the tubular member and evacuates it from the level, wherein it is deployed, simultaneously allowing progression of the explosive assembly downward along the interior of the tubular member.

REFERENCES:
patent: 3958639 (1976-05-01), Daniel
patent: 3983936 (1976-10-01), Kennard et al.
patent: 4181196 (1980-01-01), Darby et al.
patent: 4787315 (1988-11-01), Kenny

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