| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 102311000 | Patterned blasting | 18 |
| 20080282925 | ELECTRONIC BLASTING WITH HIGH ACCURACY - Electronic blasting systems typically permit blasting with detonator delay times having millisecond accuracy. Disclosed herein are blasting apparatuses and methods of blasting that are capable of even higher degrees of delay time accuracy, for example involving programmable delay times selectable to an accuracy of about 0.25 ms, 0.1 ms, or better. Such methods and apparatuses present unprecedented and unexpected advantages for both mining applications, civil engineering uses, and in seismic prospecting. | 11-20-2008 |
| 20090301335 | Explosive Matrix Assembly - An explosive matrix assembly is provided in which a single detonating cord is configured into a first set of at least five parallel sets of paired portions lying in the same plane, with adjacent parallel pairs being spaced about two inches apart. The detonating cord is further configured so that there is a second set of at least five more parallel portions that are substantially orthogonal to the first set and that lie on top of the first set. Finally, the detonating cord is further configured so that there is a pair of portions that operably secure the matrix to an appropriate explosive initiator. | 12-10-2009 |
| 20100116165 | TRACKING SYSTEM FOR BLAST HOLES - A system and method is provided for identifying any one or more of a plurality of blast holes in a drill pattern. The method involves providing each blast hole in a drill pattern with an individually identifiable first identifier and a GPS device capable of relaying identification and location data for the respective blast hole. A data reception system is provided to receive the data and store it in a database for processing purposes. The information may be later used to correlate any one or more of the blast holes with a corresponding detonator. | 05-13-2010 |
| 20120024181 | Loading of Explosives | 02-02-2012 |
| 20120227608 | ELECTRONIC DETONATOR SYSTEM - A detonator includes a high voltage switch, an initiator and an initiating pellet. The detonator also includes a low voltage to high voltage firing set coupled to the switch and initiator such that the detonator includes a high voltage power source and initiator in an integrated package. The detonator may also include inductive powering and communications, a microprocessor, tracking and/or locating technologies, such as RFID, GPS, etc., and either a single or combination explosive output pellet. The combination explosive pellet has a first explosive having a first shock energy and a high brisance secondary explosive in the output pellet having a second shock energy greater than the shock energy of the first explosive. Systems are also provided for facilitating fast and easy deployment of one or more detonators in the field. | 09-13-2012 |
| 20130139715 | REACTIVE MATERIAL BREACHING DEVICE - A breaching device that may be used to create a linear and, if desired, continuous, cut or breach in a metal structure. The cut or breach created may be non-linear in shape and not deviate from the functionality of the device. The device includes a plurality of containers joined together, such as by a metal wire or the like to form a series of cutting charges. One or more of the containers includes Reactive Material (RM) that may be ignited electronically or some other activation mechanism. The containers that do contain RM are sealed with the RM therein and preferably fabricated to be sufficiently heat resistant so that the RM is only ignited intentionally. The RM that is contained in the containers may be fired simultaneously, sequentially or in a programmed pattern, depending on the requirements of the application. | 06-06-2013 |
| 20140144342 | BLASTING METHOD FOR BENEFICIATING MINERALS - A blasting method for beneficiating minerals comprising mining of a geological body ( | 05-29-2014 |
| 20140331881 | ROTATING AND OSCILLATING BREACHING DEVICE WITH REACTIVE MATERIAL - A breaching device for non-explosively cutting through a substrate, such as the leg of an offshore oil platform or other large cylinder from within the leg or large cylinder. The device includes a ring and a plurality of Reactive Material (RM) feed assemblies. Each RM feed assembly is arranged around the ring and includes an extendible nozzle. Each RM feed assembly includes a cavity that may contain RM that when ignited exits the nozzle. The nozzles are spring loaded and arranged to extend toward the inner surface of the substrate to be cut when the ring is rotated and/or oscillated. This arrangement results in a substantially uniform cut of the substrate from within with much less danger, material, equipment and cost than is currently required to remove large water-based structures. | 11-13-2014 |
| 20160153753 | ROTATING AND OSCILLATING BREACHING DEVICE WITH REACTIVE MATERIAL | 06-02-2016 |
| 102312000 | Borehole arrangement | 9 |
| 20110297030 | Method and Apparatus for Charging an Upwardly Oriented Hole With a Pumpable Material - One aspect of the invention concerns a method of charging an upwardly oriented hole with a pumpable material, typically a pumpable explosive material such as an ANE. In the method of the invention a laterally expandable retainer is provided. This is of smaller length than the hole and has an inlet at a lower end thereof and an outlet at an upper end thereof. In an unexpanded state the retainer has a smaller lateral dimension than the hole. The retainer is inserted upwardly into the hole in an unexpanded state, whereafter material with which the hole is to be charged is pumped upwardly into the retainer through the inlet such that the retainer fills up and expands laterally into engagement with a wall of the hole. Excess pumped material is allowed to upwardly out of the retainer into the hole through the outlet. After the retainer has been filled with material and the hole above the retainer has been at least partially filled with any excess material, the pumping operation is stopped and the inlet is closed. The material is then retained in the hole by engagement of the filled and expanded retainer with the wall of the hole. Another aspect of the invention concerns the apparatus used in the method. | 12-08-2011 |
| 20120017792 | METHOD OF BLASTING - A method of blasting a segment in a ground mass, the method comprising: forming an array of holes around a central portion of the ground mass segment; placing explosives in the array of holes; and detonating the explosives. | 01-26-2012 |
| 20130152812 | HIGH ENERGY BLASTING - A method of blasting rock, in mining for recoverable material, comprising drilling blastholes in a blast zone loading the blastholes with explosives and then firing the explosives in the blastholes in a single cycle of drilling, loading and blasting. The blast zone comprises a high energy blast zone in which blastholes are partially loaded with a first explosive to provide a high energy layer of the high energy blast zone having a powder factor of at least 1.75 kg of explosive per cubic metre of unblasted rock in the high energy layer and in which at least some of those blastholes are also loaded with a second explosive to provide a low energy layer of the high energy blast zone between the high energy layer and the adjacent end of those blastholes, said low energy layer having a powder factor that is at least a factor of two lower than the powder factor of said high energy layer. The high energy blasting method provides improved rock fragmentation through increased explosive energy concentration while simultaneously alleviating deleterious environment blast effects. | 06-20-2013 |
| 20130298795 | METHOD OF BLASTING MULTIPLE LAYERS OR LEVELS OF ROCK - A method of blasting plural layers of material in a blastfield that reduces the amount of mechanical excavation required to expose a lower layer of material. The method includes using rows of equally spaced blastholes that pass through all of the layers and additional intermediate rows of blastholes that pass down only through the top layer. Each blasthole is capped with stemming material and includes one or more decks of explosive material and detonators, which air decks or inert stemming separating adjacent explosive decks. The detonators in layer are detonated first in order from row rearwards to throw a substantial amount of the blast material from the layer forwardly of free face onto the floor. In the same blasting cycle and within seconds of the throw blast, explosives materials in layers are detonated in a stand-up blast in which material in layers are broken up but otherwise are minimally displace or thrown forwardly. | 11-14-2013 |
| 20140123866 | ELECTRONIC DETONATOR SYSTEM - A detonator includes a high voltage switch, an initiator and an initiating pellet. The detonator also includes a low voltage to high voltage firing set coupled to the switch and initiator such that the detonator includes a high voltage power source and initiator in an integrated package. The detonator may also include inductive powering and communications, a microprocessor, tracking and/or locating technologies, such as RFID, GPS, etc., and either a single or combination explosive output pellet. The combination explosive pellet has a first explosive having a first shock energy and a high brisance secondary explosive in the output pellet having a second shock energy greater than the shock energy of the first explosive. Systems are also provided for facilitating fast and easy deployment of one or more detonators in the field. | 05-08-2014 |
| 20140137759 | METHOD AND ARRANGEMENT FOR PREPARING A CHARGING PLAN - A method for preparing a charging plan for rock cavern excavation, in which plan drill hole locations for a round to be drilled in a tunnel face are determined in a predetermined coordinate system by using a drilling plan created by means of a computer-assisted design program. The method determines pull-out of a round on the basis of the locations of the hole ends and the topography of the rock remaining after a round blast, and designs or modifies a charging plan for a subsequent round on the basis of the thus determined pull-out. | 05-22-2014 |
| 20160069655 | High Energy Blasting - A method of blasting rock, in mining for recoverable material, comprising drilling blastholes in a blast zone, loading the blastholes with explosives and then firing the explosives in the blastholes in a single cycle of drilling, loading and blasting. The blast zone comprises a high energy blast zone in which blastholes are partially loaded with a first explosive to provide a high energy layer of the high energy blast zone having a powder factor of at least 1.75 kg of explosive per cubic metre of unblasted rock in the high energy layer and in which at least some of those blastholes are also loaded with a second explosive to provide a low energy layer of the high energy blast zone between the high energy layer and the adjacent end of those blastholes, said low energy layer having a powder factor that is at least a factor of two lower than the powder factor of said high energy layer. The high energy blasting method provides improved rock fragmentation through increased explosive energy concentration while simultaneously alleviating deleterious environment blast effects. | 03-10-2016 |
| 20160377392 | EXPLOSIVE TUBE HAVING AIR GAP AND METHOD OF BLASTING BEDROCK USING SAME - An explosive tube having an air gap and a method of blasting bedrock using the same, comprising: a filling tube having a filling space which is to be filled with explosives; and an air tube, the upper part of which is connected with another tube to form an air gap space therein, and which has an insertion hole formed on the bottom of the air tube to introduce the explosives into the filling space, the air tube being integrally formed on the filling tube. A plurality of tubes filled with explosives are connected with each other and inserted into blasting holes formed through bedrock to break the bedrock by blasting the explosives. By forming an air gap in the upper part of the tube. | 12-29-2016 |
| 20170234667 | Auto Logging of Electronic Detonators | 08-17-2017 |
