Ammunition and explosives – Blasting – Plug
Patent
1985-01-07
1986-05-13
Nelson, Peter A.
Ammunition and explosives
Blasting
Plug
102304, 138 89, 165 76, 228 25, 228107, F42B 300
Patent
active
045879044
ABSTRACT:
An explosive activated assembly for repairing a heat exchange tube in which a grooved metal casing is inserted into the tube to be repaired and has a plurality of projections extending from the outer surface thereof. A force-transmitting member extends within a bore formed in the casing and contains an explosive member so that, upon detonation of the explosive member, the force-transmitting member and the casing are expanded radially outwardly to drive the projections against the tube. A booster is located within the casing and adjacent the charge and is activated by a transfer cord connected to an externally located detonator. The casing is formed with an extension that extends over a portion of the transfer cord and has a hole through which the cord extends to contain the debris and vapor caused by the explosion.
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Berman Irwin
Sheehan Joseph F.
Foster Wheeler Energy Corporation
Kice Warren B.
Naigur Marvin A.
Nelson Peter A.
Wilson John E.
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