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5964303 |
The description relates to a process and a device for drilling holes in hard rocks like granite, in which the rock to be drilled is exposed to a flame produced by gaseous hydrogen and fluorine together and the reaction products produced ...
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5771984 |
Various rock spallation devices and methods reduce the cost of deep hole excavation. A spallation head has rotating, circumferentially spaced jets. The jets may be combustion flame jets or very hot water. In a combustion embodiment, air ...
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5497838 |
An automated burner system for channeling a mineral body consisting of a burner staff carrying a burner at one end, a guide shaft adapted to carry the burner staff for reciprocating motion, a support shaft adapted to mount the guide shaf...
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5267622 |
In a percussion drilling apparatus, an impact block assembly is provided for sequentially driving drill rods into a subterranean formation, the impact block assembly including an impact block member aligned with one or more rows of drill...
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5211156 |
The method and apparatus treat a surface of natural rock or artificial stone-like material to give to this surface an attractive finish. A high temperature jet of plasma and a high speed jet of cooling fluid are projected onto the surfac...
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5125828 |
An internal burner for producing a subsonic air-fuel flame jet capable of flame finishing granite of similar hard stone has a body forming a closed combustion chamber fed with an essentially stoichiometric flow of compressed air and fuel...
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5107937 |
An automated burner for channelling a mineral body, including, a guide shaft assembly having a guide shaft adapted to receive a burner staff for reciprocal movement. A first drive means is connected to the burner staff and is operative t...
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5088568 |
A hydro-mechanical device for underground drilling for use with a drilling rig comprises a container having a combustion chamber, an ignition system, inlets for introducing a fuel, an oxidizer, a liquid into the combustion chamber, a noz...
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5022470 |
An autonomous ice penetrator/payload delivery system is provided which, when once launched from its parent vehicle will, upon reaching the surface of the ice automatically right itself to proper orientation with respect to the ice surfac...
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4923019 |
An apparatus and method are described for penetrating ice. The apparatus comprises: (a) a confined thermochemical reaction chamber having an inlet opening and an outlet opening and containing therein a substantially immobilized first the...
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4519453 |
A burner having a pulsating mode of operation has a combustion chamber for the periodic burning of successive separate charges of combustible fuel continuously supplied from an inlet system. Upstream of the combustion chamber is an ignit...
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4319647 |
Chanelling in rock quarries with reduced noise level is effected by flame drilling side by side holes separated by a web with the web sufficiently thin to allow easy subsequent breakage, preferably where the web is badly heat damaged and...
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4301875 |
A method and apparatus for making holes in coal seams in a coal mining system in which hot working gas is employed to impinge on the coal under high pressure and speed in order to disintegrate it and particularly for making inclined or h...
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4190121 |
A thermal drilling device which operates in a rotary or circumferentially oscillatory motion and which is particularly adapted for drilling geological formations comprises a drill body which has an interior combustion chamber with a bott...
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4099584 |
A flame jet tool for drilling a hole in the ground at great depths is disclosed. The tool comprises a flame jet lance having a drill bit and an associated fuel system. The lance is disposed in a guide sheath such that the lance may be ra...
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4076082 |
A thermal drilling device which operates in a rotary or circumferentially oscillatory motion and which is particularly adapted for drilling geological formations comprises a drill body which has an interior combustion chamber with a bott...
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4073351 |
A burner in the form of a flame jet drill bit engine for liquid fuels is disclosed. The burner has particular utility in a flame jet drill and comprises an axially elongated body with a combustion chamber disposed therein. At least one f...
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4066137 |
A flame jet lance having a rotatable drill bit for forming cross holes in the ground is disclosed. The lance has various fuel and oxidizer tanks disposed therein and a fuel feed system coupled to the tanks for pumping the fuel to the rot...
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3934659 |
The apparatus is a rocket with a drill head provided with a group of jet nozzles. One nozzle of this group is the face-forming one, while the plurality of the rows of the rest of the nozzles belong to imaginary circles concentric with th...
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3917007 |
A rocket is placed with its front nozzle directed towards the hole face with the distance between said nozzle and the face being about four diameters of the nozzle exit section. Then the rocket is released, started and the face of the ho...
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3854997 |
A flame head producing a high velocity jet flame is utilized with a venturi type adapter unit which creates a vacuum pick-up for abrasive particles or coating materials that are stored in a non-pressurized container, said material being ...
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3835937 |
A flame jet produced by the combustion of a kerosene-oxygen mixture in a combustion chamber is projected against an underwater rock thereby to drill or cut the rock by spalling or melting. The flame jet is projected at a pressure of at l...
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3746088 |
Apparatus for use in mixing reactive fluids in a well to supply heat to the well and including tubing strings providing two flow paths from the earth's surface down the well to a reaction chamber. The reaction chamber has a closed lower ...
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3658453 |
Flame cutting mineral bodies with an improved form of flame jet to produce spalling is employed to carry out a channelling operation wherein a vertical channel is cut in an exposed vertical face of granite in a quarry. Emission of a stre...
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3620313 |
A liquid propellant is burned in the bulk mode and in pulses to produce high combustion pressures with large power outputs. The pulsed high-pressure liquid propellant combustion is used in combination with a liquid jet drill to eject hig...
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3482640 |
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3476194 |
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3467206 |
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3464506 |
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3463249 |
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3461577 |
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3422911 |
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3385381 |
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3322213 |
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3318395 |
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3255802 |
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3212592 |
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3211242 |
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3207238 |
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3205953 |
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3182734 |
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3122212 |
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3116798 |
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3115195 |
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3103251 |
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3093197 |
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3070178 |
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3045766 |
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3004137 |
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2976941 |
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