公开(公告)号：WO2021167886A1

公开(公告)日：2021-08-26

申请号：PCT/US2021/018181

申请日：2021-02-16

Applicant: DYNO NOBEL INC.

Inventor： MICHNA, Richard Joseph ,  PLITT, Tyson James ,  STREBEL, Paul Richard

IPC: F42B3/08 ,  F42B3/28 ,  F42B3/10 ,  F42B3/24 ,  F42B3/26

Abstract: A booster explosive (10) comprises a canister body (12) within which is a cap well (20) having disposed therein a detonator (24). A protective sleeve (28) encloses the cap well (20) except for that portion of the cap well, the active portion (20d), which encloses the ex- plosive end section (24a) of detonator (24). The protective sleeve serves to attenuate the force of shock waves from nearby prior explosions acting on the detonator (24). An annular air space (32) may be provided between protective sleeve (28) and cap well (20) to further attenuate the force of such shock waves. Attenuation of the shock waves reduces the likeli- hood of damage to detonators (24) by prior nearby explosions.

公开(公告)号：WO2011046907A3

公开(公告)日：2011-04-21

申请号：PCT/US2010/052269

申请日：2010-10-12

Applicant: DYNO NOBEL INC. ,  MICHNA, Richard Joseph ,  LEVAN, Robert W.

Inventor： MICHNA, Richard Joseph ,  LEVAN, Robert W.

IPC: F42D1/055

Abstract: An electrical interface apparatus includes two electrical input terminals, a microprocessor disposed in electrical communication with the two electrical input terminals, and a connector disposed in electrical communication with the microprocessor. The two input terminals are disposed and configured to be releasably connected to two detonator leg wires of a detonator, the microprocessor is configured to receive an input signal from the two detonator leg wires when a voltage reference is injected into the two detonator leg wires via the two electrical input terminals, and the connector is disposed and configured to be releasably connected to a handheld computer.