Orica Explosives Technology Pty Limited

Orica International Pte Ltd

Commonwealth Scientific and Industrial Research Organisation

Rodney Wayne Appleby

Richard John Goodridge

David Johnson

Byron Wicks

Peter Conran Dare-Bryan

Alexander Theofile Spathis

Thomas M Miller

Stuart Arthur Bateman

Dong Yang Wu

Matthew T Rawls

Francisco Sanchez

Richard Goodridge

Keith Leslie

David Brian Kay

Alex Spathis

Michael Maggs

David Thiel

Marcel Bick

Carmelo Dell'Olio

Thomas Miller

Ming Chung Lee

Kyle Blay

David Olaf Johnson

Carmelo DELL'OLIO

In an embodiment, a photoinitiation apparatus includes: a set of illumination sources or elements configured for outputting optical energy; a body structure having a proximal body structure portion confining a proximal volume of explosive medium, an intermediate body structure portion confining an intermediate volume of explosive medium, and a distal body structure portion confining a distal volume of explosive medium, wherein the proximal volume of explosive medium is optically coupled to portions of the first volume of explosive medium, at least one of the proximal volume of explosive medium and the distal volume of explosive medium is a tertiary explosive medium, and (a) the body structure does not carry a primary explosive composition and does not carry a secondary explosive composition, and/or (b) each of the proximal, intermediate, and distal volumes of explosive media has an initiation sensitivity that is less than cyclotrimethylenetrinitramine (RDX) based explosive compositions.

Systems, apparatuses, devices, and methods for initiating or detonating tertiary explosive media by way of photonic energy

A marker for remote localisation in a medium, the marker including a magnetic field sensor configured to measure three different magnetic fields at three different respective times in three dimensions at a marker location in the medium, wherein the marker is configured to generate measurement data representing the measured magnetic fields for determining the marker location.

Apparatus, system and method for remote localisation of a marker using magnetic fields

A process for locating underground markers, including: transmitting signals through the ground between markers in the ground; and determining locations of the markers based on the transmitted signals.

Locating underground markers

An initiator apparatus (IA) for blasting, the apparatus including: a magnetic receiver for receiving a magnetic communication signal through the ground by detection of a magnetic field; a controller, in electrical communication with the magnetic receiver, for processing the magnetic communication signal to determine a command for blasting; and a light source in electrical communication with the controller for generating a light beam to initiate a light-sensitive explosive (LSE) in accordance with the command.

Apparatus, system and method for initiation of buried explosives

A method of mining a mineral deposit includes setting a plurality of explosive charges at spaced pre-blast locations in the deposit, wherein at least selected pre-blast locations also carry respective markers that are such that the post-blast location of at least a useful proportion will be detectable after explosion of the charges. After the charges are exploded to fragment the deposit, the post-blast locations of certain of the markers are detected to obtain an indication of the relative positions of selected components of the mineral deposit after the fragmentation of the deposit by the exploding of the charges. Also disclosed is a method utilizing a plurality of markers arranged to emit a detectable signal after blast fragmentation, and detecting the post-blast locations by triangulation techniques employing a plurality of receiver detectors. A further aspect proposes the use of secondary explosive charges as post-blast markers.

Use of post-blast markers in the mining of mineral deposits

A conductive element suitable for the transmission of an electrical operating signal to a detonator, which conductive element comprises a conductive filler homogeneously dispersed in a polymer matrix.

Electrical conductive element

A detonator free blasting system, which comprises: a bulk explosive; a confined explosive; a fiber optic adapted to deliver laser light to the confined explosive, wherein the confined explosive is provided relative to the bulk explosive such that detonation of the confined explosive causes initiation of the bulk explosive.

Detonator free laser initiated blasting system

Growing community of inventors

Melbourne, Australia

Rodney Wayne Appleby