Blast movement monitor and method for determining the...

Details Blast movement monitor and method for determining the... Blast movement monitor and method for determining the...

2008-05-06

2008-05-06

Bergin, James S (Department: 3641)

Ammunition and explosives

Blasting

C324S207110, C324S207220, C324S326000, C073S035140, C073S649000

Reexamination Certificate

active

07367269

ABSTRACT:
A method for measuring the movement of boundaries between different portions of a heterogeneous rock body is disclosed. The method comprises placing a plurality of blast movement monitors109in a rock body prior to blasting and noting the position of each blast movement monitor. The rock body is then blasted to break it up into a plurality of pieces. Thereafter the position of the blast movement monitors109is located and based on this the boundaries of rock portions can be adjusted to account for the blast. This leads to a more accurate reporting of different ore bodies to the appropriate processor in a heterogeneous rock body. An apparatus for carrying out the method is also disclosed. The apparatus comprises broadly a said monitor109and a receiver. The monitor1comprises a transmitter109received within a casing111that in turn is received within a housing126. Further the casing111can move within the housing126and self right so that it always transmits its signal in an upright direction.

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