초록 ▼

A booster for high efficiency initiation of an explosive material comprising a body portion having substantially tapered sides and a substantially flat interface surface at the larger end of the body portion extending generally laterally thereof for contacting the explosive material. A plurality of

A booster for high efficiency initiation of an explosive material comprising a body portion having substantially tapered sides and a substantially flat interface surface at the larger end of the body portion extending generally laterally thereof for contacting the explosive material. A plurality of passageways may be formed in the booster to receive a means for detonating same. When compared with traditional cylindrical boosters of either equal weight or equally sized interface surfaces, the disclosed booster resulted in shorter run-up distance and a more effective release of explosive energy. Although numerous geometric configurations of the booster are disclosed, a presently preferred embodiment thereof takes the shape of a conical frustum, the larger planar surface of which is to be oriented as the interface surface toward the explosive material to be detonated.

대표청구항 ▼

A booster for use with a means for detonating the booster to explode a column of explosives filling a longitudinal portion of a borehole, said booster comprising: (a) a quantity of selectively detonatable high energy material formed into a body portion terminating at one end thereof in an interface

A booster for use with a means for detonating the booster to explode a column of explosives filling a longitudinal portion of a borehole, said booster comprising: (a) a quantity of selectively detonatable high energy material formed into a body portion terminating at one end thereof in an interface surface for contacting and being directed toward the majority of the explosives in the column of explosives with said interface surface oriented normal to the longitudinal axis of the borehole and with the other end of said body portion being on the opposite side of said interface surface from the majority of the explosives in the borehole, the area of the cross-section of said booster and any plane parallel to said interface surface diminishing with the distance of said plane therefrom, and the volume of said booster being in the range of from about one-third to about two thirds of the volume of a reference booster having an equal height, an identical interface surface, and sides normal thereto; and (b) means for engaging the booster with said means for detonating the booster, such that said means for engaging orients the interface surface of the booster to be directed toward the majority of explosives in the column of explosives and said body portion to be on the side of said interface surface opposite the majority of the explosives in the column of explosives.