Ammunition and explosives – Blasting – Plug
Patent
1986-11-17
1988-07-05
Nelson, Peter A.
Ammunition and explosives
Blasting
Plug
102312, 102313, 102331, F42B 1344, F42D 300
Patent
active
047547057
ABSTRACT:
A stemming construction for a blast hole loaded with an explosive charge, comprising a tapering wedge member dispersed in the blast hole outwardly of the explosive charge with its narrower end facing outwardly toward the mouth of the blast hole, and particulate stemming material in the blast hole outwardly of the wedge member. Detonation of the explosive drives the wedge member into the stemming material to wedge the stemming material against the walls of the blast hole. The wedge member is preferably cone-shaped and can be provided with a stabilizing rod to prevent it from tilting.
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Nelson Peter A.
The Curators of the University of Missouri
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