An explosive stemming device for dispensing granular material into a borehole containing an explosive charge therein is disclosed as including a cylindrical member having a flexible sleeve-like liner adapted to conform to the interior thereof when filled with granular material. One end of the liner is turned around an end of the cylindrical member and secured thereto while the other end of the liner is fixed to a centrally positioned pipe whereby extracting of the member containing granular material from the borehole causes everting or turning inside out of the liner and dispensing of the material in the borehole.
申请公布号
US5092245(A)
申请公布日期
1992.03.03
申请号
US19900553829
申请日期
1990.07.18
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY
发明人
DOUGLAS, DONALD H.;COOPER, STAFFORD S.;MALONE, PHILIP G.