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7395760 |
Device, system and method for on-line explosive deslagging
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility ( 31 ) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as...
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7210537 |
Method of controlling fires
A forest fire is brought under control and extinguished through the use of ordnance to create a fire break. The fire break location is chosen along a front in the direction of travel of the fire....
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6679175 |
Cartridge and method for small charge breaking
The present invention is directed to a cartridge that includes a number of advantageous features. For example, the cartridge can include a bulk energetic material, an igniter located in a central...
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6655290 |
Structure of slackening type blasting mat
A blasting mat assembly comprising a steel plate member having thickness capable of bearing a blasting pressure of explosives inputted to blasting hole; an elastic member which is fixedly attached...
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6623212 |
Cut-off device for concrete structures
A cut-off element for concrete structures is formed by a plastic material flask having a flat-closed base and a tapering side envelope forming an acute angle with the base, said angle being between...
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6622631 |
Slackening type blasting method
A blasting mat assembly comprising a steel plate member having thickness capable of bearing a blasting pressure of explosives inputted to blasting hole; an elastic member which is fixedly attached...
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6584908 |
Device for the disruption of explosive objects
A disrupter has a plastic box 1 with three semi-cylindrical plastic formers 2 each with a bag 4 containing water. Sheet explosive 13 is applied to the back of the formers. Bags 4 may be...
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6530325 |
Method of scrapping steel structures
A method of breaking up a structure for the recovery of steel as scrap. The structure has steel plates forming a compartment secured to framing in the compartment. The method includes at least...
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6460462 |
Method of blasting of rock mass
A method of blasting rock or similar materials in surface and underground mining operations is described in which neighboring bore holes are charged with explosives and primed with detonators. The...
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6438191 |
Explosive scabbling of structural materials
A new approach to scabbling of surfaces of structural materials is disclosed. A layer of mildly energetic explosive composition is applied to the surface to be scabbled. The explosive composition...
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6431075 |
Center-cut method for tunnel excavation utilizing large unloaded blast holes and a circular pre-split
Disclosed herein is a center-cut blasting method for tunnel excavation. The center-cut blasting method includes the step of drilling a single central center-cut hole at the center of a center-cut...
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6431074 |
Blasting apparatus, blasting method and retainer member used for the blasting method
Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance ...
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6415717 |
Line charge assembly and system for use in shallow-water clearing operations
A line charge assembly and system are provided for use in a shallow-water obstruction clearing operation. Each assembly has a propulsion unit capable of flight through the air, a line charge array,...
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6408761 |
Blasting apparatus
A melting/vaporization substance 2 is melted and vaporized by supplying an electric energy of a predetermined amount from an electric energy supply circuit to the melting/vaporization substance ...
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6389973 |
Blasting apparatus and blasting method
A fusible and vaporizable substance (for example, a thin metal wire is used) 2 is fused and vaporized by supplying thereto a predetermined amount of electrical energy from a capacitor 14 of an...
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6374717 |
Device for provoking an avalanche
The invention concerns a device ( 10 ) for provoking an avalanche comprising a gas gun ( 12 ) the end of which is fixed to a seat ( 13 ) solidly anchored to the mountain and the downstream end of...
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6339992 |
Small charge blasting apparatus including device for sealing pressurized fluids in holes
The present invention is directed to a small charge blasting system that provides a relief volume for a pressurized working fluid in the bore of a barrel that is inserted into a hole in the...
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6332401 |
Method and apparatus for pressure wave suppression in small-charge blasting
The present invention is directed to a method for selecting pressure wave suppression devices from among a menu of pressure wave suppression devices to satisfy the pressure wave requirements of a...
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6321655 |
Method and apparatus for flyrock control in small charge blasting
The present invention is directed to a method for selecting flyrock control devices from among a menu of flyrock control devices to satisfy the flyrock requirements of a given job or application....
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6318272 |
Breaking or blasting or splitting of rock
A method of breaking rock (18), e.g. in underground mining, includes drilling a hole in the rock mass by means of a drilling machine (20) having an articulated boom (22) and a drilling tool (24) at...
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6289815 |
Device for controlling bird strike hazards
A device for dispersing birds in airport areas, including a self-propelled projectile with a delayed firing element (15, 18, 27, 29) and a sound-effect charge (9) designed to scare birds away and...
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6279481 |
Device for provoking the collapse of snow cornice
The invention concerns a device for provoking the collapse of a snow cornice comprising several exploders (11). Each exploder (11) consists of a main cylinder (12), perpendicular to the support...
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6279477 |
Destroying apparatus and method, and holding member for use in that method
Supplying a predetermined amount of electric energy to a fine metal wire 4 in a short time causes the fine metal wire 4 to melt and evaporate. Following this phenomenon, a blasting substance 10...
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6155172 |
Method for setting parameters for blasting using bar-like charge
The present invention provides a method for setting parameters required for any type of blasting operation using a bar-like charge system by devising equations based on which the maximum blasting...
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5900578 |
Method of breaking slabs and explosive shock transmitting and moderating composition for use therein
Rock slabs or pieces are broken from larger rocks or from rock formations with reduced cracking of the broken rock slabs or pieces by drilling bore holes along the desired break lines, placing...
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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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5810098 |
Method of breaking slabs and blocks of rock from rock formations and explosive shock transmitting and moderating composition for use therein
Rock slabs or pieces are broken from larger rocks or from rock formations with reduced cracking of the broken rock slabs or pieces by drilling bore holes along the desired break lines, placing...
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5798477 |
Explosive cartridge assembly for presplitting rock
The present invention includes a small diameter explosive cartridge and a two-stage large diameter explosive cartridge apparatus for presplitting rock can be axially detonated by detonating cord...
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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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5780763 |
Fracture/severance of materials
A method for severing or weakening materials. Explosive cords are placed in grooves on the upper surface of the material to be severed or weakened. The explosive cords are initiated simultaneously...
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5773750 |
Rock fragmentation system using gold schmidt method
A rock fragmentation system using Gold Schmidt method and process for blasting using the machine are provided, wherein the blasting machine has a capacitor bank, a switch, a high voltage electric...
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5739461 |
Launcher
A pistol style flare launcher device suitable for multiple launches of flares uses an orifice in a gas duct to control the burn rate of blank cartridges by predictable high back pressure and a...
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5650588 |
Method for setting blasting employing bar-like charge
This invention is to provide a setting method of blasting in bar-like charge which is reasonable to achieve both of safety and maximum blasting or fracturing efficiency, and to provide the method...
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5576511 |
Anti-explosion pads with steel mesh, slitted metal foil and expanded metal net
A highly efficient anti-explosion pad comprising multiple sheets of expanded metal net separated by a core layer of porous material such as fiberglass, cotton batting or an assembly of miniature...
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5546862 |
Remote control adaptor for a detonator system
A remote control adaptor for the XM-122 detonator system which utilizes a ir of color coded LED's to indicate the open or closed status of the output terminal of a bistable relay.
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5524546 |
Breeching device
A breaching device comprising a regular polygon structure in which identi, rectangular, concave flying plate devices (shape charges) form the sides of the polygon, and a strong, rigid, lightweight...
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5437230 |
Standoff mine neutralization system and method
An unpowered air vehicle, i.e. a glider, which is air-launched from appreciable range, is densely packed with a large area, explosive net. At a pre-determined location, the net is extracted from...
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5413047 |
Overburden removal method with blast casting and excavating apparatus
Coal and other mineral seams are uncovered of overburden to a predetermined width by blast casting a portion of the overburden into an adjacent spoil pit followed by fragmentation blasting of the...
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5386779 |
Passive air blast attenuators and ventilators
A blast attenuator and ventilator for use in hardened or protective structures or the like that includes within a hollow housing a chamber that is arranged to receive directly the blast effect....
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5386778 |
Process for visualization of a blast wave
A process for visualization of a blast wave, which is the shock wave resulting from an explosive charge, is practiced by observing disturbance contours on a liquid-air cloud and interpreting...
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5375528 |
Container for a large spherical explosive charge
A light weight explosive mass for a spherical charge of high explosives used to simulate nuclear bursts at ground or above ground level or underwater wherein the sphericity of the loaded explosive...
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5347930 |
Method and installation for the destruction of laboratory waste
The disclosure relates to a method and installation for the destruction and of containers containing dangerous and noxious laboratory wastes, by explosion in a submerged medium. The automatic...
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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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5212343 |
Water reactive method with delayed explosion
Devices and methods are disclosed for contacting a hot reaction mass with water to initiate an explosive reaction. The reaction mass comprises a ceramic or intermetallic material that is produced...
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5196647 |
Door unlocking device and method
The invention comprises a device and method for forcibly opening a locked door. A sealed chamber is adapted to sealably receive the barrel of conventional firearm. A piston in the sealed chamber is...
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5194689 |
Earth excavation using blast casting and excavating apparatus
Coal and other mineral seams are uncovered to a desired width or "cut" by blast casting a portion of the overburden material above the seam into an adjacent pit portion followed by moving a...
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5149911 |
Flexible sheet explosive
An explosive device and process of using same is provided to exert a desi force on an object without exposure to the flame heat generated upon detonation of explosive charge sandwiched between...
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5140907 |
Method for surface mining with dragline and blast casting
Coal and other mineral seams are uncovered to a desired width by blast casting a portion of the overburden above the seam into an adjacent spoil pit, followed by excavation of a keycut between...
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5107765 |
Process and device for triggering an avalanche
The above device consists mainly of a rigid explosion tank (10) with a closed rear end (11) and a front opening (12). Said tank is mounted in the direction of the slope on which the avalanche is to...
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5035756 |
Bonding agents for thermite compositions
A thermite mixture with a low autoignition temperature for venting ordnance ase sidewalls during fuel fire, having increased density, tensile strength and elasticity.
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