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7594471 Blasting system and method of controlling a blasting operation  
A method and apparatus for controlling a blasting operation using blast control equipment to initiate a plurality of detonators at a blast site. According to the method, the full use of the blast...
7578237 Method for controlling initiation of a detonator  
A method for controlling the initiation of an electronic detonator when located in surrounding ground, the method comprising the steps of: measuring the actual spatial position of the said...
7568429 Wireless detonator assembly, and methods of blasting  
Wireless detonators, and corresponding wireless detonator systems present opportunities for blasting arrangements that avoid the need for physical wire connections between the blasting components....
7497165 Blasting method by controlling oxygen supply  
A blasting method of blasting an explosive device at least containing an explosive and a chemical agent in a sealed pressure vessel that prevents soot generation during blasting and improves an...
7451700 Detonator system having linear actuator  
Disclosed is a detonation initiator that can form part of a demolition assembly. The detonation initiator can include a linear actuator assembly having a core with a permanent magnet disposed with...
7418373 Blasting method  
Methods for evaluating drill pattern parameters such as burden, spacing, borehole diameter, etc., at a blast site are disclosed. One method involves accumulating the burden contributed by...
7406918 Method of blasting  
A method of blasting in which rock pile profile associated with a blast field is controlled by precise control of the detonation delay times between and/or within individual blastholes in the blast...
7404867 Infrared decoy flare composition  
An infrared decoy flare composition for generating infrared radiation, including a fuel, an oxidizing agent and a binder, wherein the decoy flare composition contains no metals or metal-containing...
7367269 Blast movement monitor and method for determining the movement of a blast movement monitor and associated rock as a result of blasting operations  
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 monitors 109 in...
6945174 Method for connecting ignitors in an ignition system  
Errors may occur in a detonating system that consists of several detonating circuits when the connection—the logging-on—of detonators is effected to the buses of a logger which in turn is...
6736069 Method for generating energy by using exothermic reaction of metal  
Disclosed herein is a method for generating energy by using exothermic reaction of metal, comprising the steps of reacting an oxidant containing mostly water with combustion substances mainly...
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...
6422145 Controlled electromagnetic induction detonation system for initiation of a detonatable material  
The controlled electromagnetic induction detonation system for initiation of a detonatable material system includes an automated radio charge (ARCH) module connectable to an electric detonator, a...
6397753 Water-based apparatus to mitigate damage and injuries from a fully or partially confined explosion  
A water-based apparatus for mitigating the gas pressure loading and associated damage and injuries from a fully or partially confined explosion. The water-based apparatus comprises a water-blanket...
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...
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...
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...
6324982 Process for artificially triggering an avalanche and device for applying this process  
The invention involves a process for artificially triggering an avalanche. The invention process includes a first step of filling at least one flexible envelope with an explosive fluid and a second...
6298785 Blasting apparatus  
A thin metal wire 8 is fused and vaporized by a predetermined amount of electrical energy supplied to the thin metal wire 8 for a short period of time, whereby a blasting substance 3 is expanded in...
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...
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...
5864767 Chemical biological explosive containment system  
A portable apparatus for mitigating the effects of chemical, biological aor radiological agent containing explosive devices within a defined area is disclosed. The apparatus is an inflatable,...
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...
5589657 Detonating system having a detonator within an insulating container  
A detonating system includes a detonator within a thermal insulating container. In order for the detonator, especially an electronic detonator, to be usable at higher temperatures, the detonator is...
5578788 Manufacture and use of improved explosive composition  
Explosive composition, and method for its manufacture, based on an essentially particulate mixture containing a solid oxidizing salt and optionally a fuel, wherein at least a part of the oxidizing...
5375527 Method for blasting employing bar-like charge  
The present invention is to provide a method for blasting employing bar-like charge, having a pure blasting coefficient for maximum fracturing performance without causing danger of flying rock or...
5375524 Blasting connector system and method of use  
A Blasting Connector System (10) for use in a conventional blasting environment, wherein the system comprises a plurality of structurally similar and compatible components which include a Cap...
5353708 Method for production of ultradispersed diamond  
The invention relates to a method of production of ultradispersed diamond which can be used for the production of abrasive materials, more particularly, this method relates to production of fine...
5162606 Modular blasting system  
Modular components including donor units (20), relay units (30), and detonator units (50) create a variety of blasting systems. A donor unit (20) is formed from a signal transmission tube (22)...
5147566 High speed silent cracking agent of the liquid-soaked type and the process for making same  
A high speed silent cracking agent of the liquid-soaked type consists of a cartridge of solid cracking agent and a solution of liquid inhibitor catalyst. The cartridge of solid cracking agent...
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...
5092219 Selective decomposition of nitrite esters and nitramines  
A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from...
5009163 Non-electric signal transmission device connection, method and apparatus therefor  
A connection between the ends of two discrete signal transmission devices allows signal propagation between the ends of the devices. The ends of the devices are axially aligned at a close distance...
4976199 Blasting system and its method of control  
A blasting system wherein the actuation of detonators at a plurality of blast holes is controlled by firing one or more test blasts and, at each blast hole, monitoring the resulting shock wave to...
4764231 Well stimulation process and low velocity explosive formulation  
Well stimulation involving use of a liquid explosive composition in the explosive fracturing of subterranean formations such as oil and gas bearing formations. An explosive formulation comprising a...
4733610 3-nitro-1,2,4-triazol-5-one, a less sensitive explosive  
A less sensitive explosive, 3-nitro-1,2,4-triazol-5-one. The compound 3-nitro-1,2,4-triazol-5-one (NTO) has a crystal density of 1.93 g/cm 3 and calculated detonation velocity and pressure...
4729770 Processes and compositions for abrasive blast cleaning  
An aqueous wet blasting composition and process for cleaning a ferrous surface which reduces the rusting of the surface due to aqueous contact by incorporating phosphate ions and an imine compound...
4499828 Barrier breaching device  
A barrier breaching device that is designed primarily for opening holes in interior walls of buildings uses detonating fuse for explosive force. The fuse acts as the ribs or spokes of an...
4485739 Detonation gas delivery unit  
The detonation gas for gas-detonatable blasting charges used in surface mining and the like is supplied by a portable self-contained delivery unit connected to the blasting charges by a network of...
4485718 Rapid de-icing system  
A method and a device for the purpose of de-icing those covers and other surfaces of limited size which can be subjected to severe icing and which it may be necessary to make ice-free at very short...
4372213 Molten metal-liquid explosive method  
An explosive device comprising: (1) a metal liner composed of a metal selected from the group consisting of luminum, magnesium, copper, and brass, the liner enclosing a chamber; (2) a liquid...
4331080 Composite high explosives for high energy blast applications  
A novel composite explosive comprised of conventional explosive material and a mixture of boron and at least one other metal is disclosed. The other metal must be capable of exothermically reacting...
4306628 Safety switch for well tools  
A mechanical safety switch for closing electrical contacts in a well tool. The mechanical switch has several safety requirements which must be satisfied before the electrical contacts will close...
4262965 Triangular blasting into limited voids for vertical free face retorts  
Oil shale formation is explosively expanded toward a limited void volume for forming an in situ oil shale retort in a subterranean formation containing oil shale. In one embodiment, the retort is...
4253889 Two-component explosive composition  
A two-component explosive composition is disclosed in which each of the components, in and of themselves, is non-detonable. At the use site, the components are readily mixed to form a No. 6...
4244624 Method for reclaiming highwalls at mining sites with partially mined ore veins  
A method of reclaiming a highwall or sharp cliff like exposure mining site. The method includes the steps of placing a first series of directional charges at preselected locations in each of the...
4223734 Process of breaking and rendering permeable a subterranean rock mass  
The process of the present invention involves the following steps: producing, as by hydrofracing, a substantially horizontal fracture in the subterranean rock mass to be processed; emplacing...
4218272 Water-in-oil NCN emulsion blasting agent  
Water-in-oil emulsion blasting agent compositions are provided which are non-cap sensitive yet detonable under high heads of water and which contain as the sole oxidizing salt ammonium nitrate, an...
4210366 Method of detonating explosives for fragmenting oil shale formation toward a vertical free face  
Oil shale formation is explosively expanded toward a limited void volume for forming an in situ oil shale retort in a subterranean formation containing oil shale. In one embodiment, a void in the...
4205610 Shale oil recovery process  
A process of producing within a subterranean oil shale deposit a retort chamber containing permeable fragmented material wherein a series of explosive charges are emplaced in the deposit in a...
Matches 1 - 50 out of 138 1 2 3 >