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7258054 |
Continuous explosive charge assembly for use in an elongated cavity
A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A...
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7069862 |
Handheld tool for breaking up rock
A tool ( 12 ) has a body ( 14 ) with a barrel ( 18 ) having opposing threaded and fitted openings ( 30 and 28 ). An actuator pin tube ( 26 ), for slidably engaging an actuator pin ( 38 ) having a...
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6901865 |
Primer casing and method of charging a blasthole
Primer casing ( 1 ) comprising sleeve portion ( 5 ) and leading portion ( 5 a ), wherein sleeve portion ( 5 ) includes tabs ( 6 ) to retain primer ( 11 ) and blasthole engagement means ( 2 ), and...
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6722251 |
Method for loading a continuous explosive charge assembly in an elongated cavity
A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A...
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6591731 |
Method and apparatus for penetrating hard materials using a energetic slurry
A method and apparatus for drilling and penetrating hard materials utilizes a high velocity gun system that fires multiple shots of a projectile and an energetic slurry at the surface of the...
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6564686 |
Continuous explosive charge assembly and method for loading same in an elongated cavity
A method and apparatus for placement of continuous pre-split, gel explosive in an elongated borehole or cavity. An anchor is attached to one end of a selected length of continuous gel explosive. A...
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6557448 |
Method of and system for delivery of water-based explosives
This invention relates to a method of delivering a water-based explosive by feeding a water-based explosive and a fluid non-explosive carrier into a tubular delivery member in order that the...
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6520089 |
Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith
A method for setting and igniting a charge of explosives for geological investigations, comprising the following steps: a hole ( 14 ) is drilled in the ground ( 12 ) which is to be investigated; an...
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6502631 |
Reinforced borehole plugs
Reinforced borehole plugs useful in the presplitting and blast removal of earth formations, the improvements provided by the invention comprising inflatable devices intended to support stemming,...
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6401588 |
Delivery of emulsion explosive compositions through an oversized diaphragm pump
A system and method are provided for delivering emulsion explosive compositions into a borehole by means of an oversized diaphragm pump, which provides a relatively constant flow rate for the...
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6397754 |
Method and apparatus for charging boreholes with explosives
A method and a device for charging boreholes ( 11 ) with explosives. One end of the charging hose ( 3 ) is introduced to a substantially predetermined distance from the bottom of the borehole....
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6397719 |
Method for loading slurry explosives in blast holes or cartridges
A method for loading and sensitizing a slurry explosive in a borehole or in a cartridge, where a gassing agent is added as a thin string inside the slurry explosive after the explosive has been...
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6210122 |
Method and delivering an explosive composition
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6125761 |
Zinc oxide inhibited emulsion explosives and method
A method of blasting in reactive ores includes diluting hot liquor of ammonium nitrate with water to provide diluted ammonium nitrate solution of predetermined concentration, adjusting the pH of...
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6098516 |
Liquid gun propellant stimulation
To increase a yield of a hydrocarbon such as oil from a subsurface reserv, the reservoir is stimulated by pumping liquid gun propellant (LP) into the reservoir and igniting the LP. The LP is pumped...
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6070511 |
Apparatus and process for loading emulsion explosives
An apparatus and process for the production of any emulsion explosives composition and loading it into a blast hole (7) which utilize a loading conduit (4) having a shear inducing means (5) and a...
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5962803 |
Apparatus for preparing spherical energetic compounds
A method for producing substantially spherical energetic compounds such as ammonium dinitramide (ADN) which minimizes the time during which the ADN is melted involves providing solid ADN, feeding...
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5874688 |
Explosives dispersed from a pressurized container
The invention provides a method and apparatus (10) for loading a sensitized flowable explosive into a borehole. The apparatus (10) is portable and comprises containers 14, 16 which are...
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5844322 |
Low energy fuse and method for its manufacture
A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least...
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5841055 |
Method for controlled refining of explosive compositions
An apparatus for the controlled refining of an emulsion explosive composition is shown. The apparatus includes a pump for pumping the pumpable explosive composition, a conduit for transporting the...
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5811711 |
Metered delivery of explosives
The present invention is directed to a metered delivery of explosives to boreholes in mining, quarrying, and/or construction operations. The explosives may be ANFO, emulsions, bulk explosives,...
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5789694 |
Breaking up of rock and the like
An impulse generating tool for breaking up rock has a barrel, a breech body for a cartridge (50) loaded with gas producing propellant (70) and a firing mechanism for firing the cartridge. A hole is...
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5712440 |
Apparatus and process for explosives mixing and loading
The subject invention relates to an apparatus and process for mixing and delivering an explosives composition. The apparatus for use in the process comprises a main conduit which can be gas...
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5686685 |
System for pneumatic delivery of emulsion explosives
Apparatus for delivery under pressure of emulsion explosives to boreholes using an annular stream of water for lubrication. Maintaining the water pressure at least 10 psi greater than the emulsion...
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5672839 |
Method and apparatus for controlled refining of explosive compositions
An apparatus for the controlled refining of an emulsion explosive composition is shown. The apparatus includes a pump for pumping the pumpable explosive composition, a conduit for transporting the...
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5610358 |
Apparatus and process for explosives blow loading
The application relates to a gas deflecting device for use in the blow loading of emulsion explosives compositions, the gas deflecting device comprising a nozzle which is capable of being removably...
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5584222 |
Method for charging bore-holes with explosive
A method for charging explosives in substantially horizontal bore-holes, with a loading density reduced in relation to that corresponding to the complete fill up of the bore-hole diameter with the...
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5524523 |
Loading of boreholes with flowable explosives
The invention provides a method of loading flowable explosives into a borehole, and a lance suitable for use in the method, A plurality of different fluids are fed into the borehole along a...
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5460073 |
Method and apparatus for feeding hoses into mining boreholes and the like
A method and apparatus are described for feeding a hose having a corrugated exterior surface into a mining borehole and the like. The apparatus includes a support frame and a rotatable drive wheel...
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5447090 |
Remote control for bulk explosives delivery system
The present invention is directed to a delivery system for bulk explosives whereby said system is remotely controlled by electronic or electrical controls.
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5347907 |
Multipurpose projectile and a method of making it
A multipurpose projectile and a method of making it, said projectile comprising a shell (2) which contains a penetrator (1) and at least one incendiary charge (5) surrounding a portion of the...
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5233926 |
Adhesive secondary blasting cone
A shaped secondary blasting charge including a frustoconical container and a viscous adhesive explosive overpacked into the container. A concave cover accommodates the overloaded explosive which is...
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5192819 |
Bulk explosive charger
There is disclosed, according to the present invention, an apparatus and method for loading explosives exhibiting little water resistance into water filled blast holes without contamination of the...
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5105743 |
Method and device for introduction of explosives into drill holes
In a method and a device for introducing granular or pulverulent explosive into drill holes the introduction is suitably carried out by means of a hose like or tube like conduit (2) introducable...
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5099763 |
Method of blasting
A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an...
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5069108 |
Blasting device for unblocking mine raises
A blasting device for unblocking ore passes, backfill raises, mine draw points and any other near vertical raises where rocks or other materials normally fall freely but may get blocked during use,...
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5007345 |
Method and apparatus for charging waterlogged boreholes with explosives
A method of charging waterlogged boreholes with water-resistant particulate explosive material, comprises inserting a pneumatic line with upwardly directed nozzles at the lower end thereof and a...
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4987818 |
Shaping apparatus for an explosive charge
The invention provides shaping apparatus for an explosive charge, particularly for use with plastic explosive in forming shaped charges. The shaping apparatus comprises a hollow cylindrical body...
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4966077 |
Loading of boreholes with explosive
A positive displacement explosive base dosing pump is provided with a drive motor 14 and has an outlet 22 connected via a flexible hose 24 to a lance 70. The lance 70 has a mixing device 72 therein...
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4961381 |
Primer centering device for large diameter blastholes
An improved method for reducing misfires in large diameter unlined blastholes by fitting on the primer used in the blasthole a centering device comprised of a semi-conducting plastic material.
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4817529 |
Process and apparatus for automatically positioning an explosive charge above the surface of snow
A process and an apparatus for automatically positioning an explosive charge at a predetermined position above the surface of the snow for setting off an avalanche. The apparatus includes an...
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4716833 |
Method of assembling a tanged charge holder
A shaped charge carrier assembly includes a strip type carrier having openings therein for receiving shaped charges. Each of the openings includes first and second diagonally opposed pairs of...
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4699060 |
Detonation arrestor device for bulk explosive materials transfer
A system for transferring bulk explosive materials comprises at least one bulk explosive material storage tank and a transfer hose connected to this tank. The hose is used to fill a receptacle,...
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4689185 |
Priming method for rimfire cartridge
A priming method for rimfire cartridges is disclosed in which a propellant solution is disposed adjacent a centrifugally located primer material in a rimfire cartridge. The solvent is then...
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4685375 |
Mix-delivery system for explosives
Method and apparatus for making aqueous slurry explosives are disclosed. The components of the aqueous slurry explosive are mixed in a variable speed rotary mixer where the speed of the mixer is...
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4586438 |
Borehole stemming with a column of liquefiable and/or vaporizable chunks of solid material
To prevent the rapid escape of high-pressure explosion gases when an explosive charge is initiated in a borehole, the hole is stemmed with chunks of readily liquefiable and/or vaporizable solid...
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4537133 |
Non-incendive rock-breaking explosive charge
Non-incendive explosive charge for use in flammable atmospheres includes a layer of damp salt as quenching material surrounding a charge enclosed in an inner housing. An outer housing is strong and...
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RE31953 |
Method of charging a borehole
A method of charging a borehole with at least first and second separate sections of explosive material, which method comprises the steps of providing a detonating cord extending into the borehole,...
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4527482 |
Blasting cap to primer adapter
A blasting cap to primer adapter permits the use of any size of a blasting cap and associated shock tube in combination with commercially available primers and detonating cords. In one embodiment,...
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4522125 |
Charging large diameter vertical boreholes
A method of charging upwardly extending, large diameter boreholes with cylindrical explosive cartridges is provided employing a longitudinally inflating flexible tube as the pushing mechanism. A...
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