Matches 1 - 50 out of 167 1 2 3 4 >


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8113741 Boring machine with conveyor system for cuttings and method for boring therewith  
A boring machine includes a cutter head, an internal casing and an auger that is located within the internal casing. The cutter head and the auger are operationally connected to a rotational...
7942605 Milling drum  
In one aspect of the invention a system for removing a layer of a paved surface comprising a vehicle is adapted to traverse a paved surface in a selected direction. The vehicle has a milling drum...
7192094 Auger flight support system  
An auger support assembly for use with an augering system for mining which bores a pair of side-by-side holes through a coal seam using dual side-by-side augers. Each auger includes a drilling...
6698844 Earth discharging device for upward-facing shield machine  
An earth discharging device, for a shield machine for constructing a tunnel in the vertical direction, has a pipe for discharging downwardly earth and sand that have been excavated by the machine...
6652035 Highwall mining system  
A highwall mining system of the type wherein multiple conveyor cars are connected together to form a conveyor train which extends into a seam being mined by a mechanical miner located at the inner...
6293628 Hydraulic scroll auger mining system and method of using the same  
A preferred cutting head includes a first body having a manifold for containing high pressure fluid and an axis of rotation generally parallel to the borehole, a first plurality of mechanical bits...
6142577 Hydraulic muck handling system for tunnel boring machine  
A tunnel boring machine for collecting earth excavated upon rotation of a cutter disk includes a non-pressurized chamber behind the cutter disk for collecting earth excavated by the cutter disk and...
6082930 Shield driving machine  
The present invention relates to a shield driving machine by which eliminates excessive work of the ground when working at a curved section while suppressing an increase of the sinking of the...
6017095 Tunnel boring machine with crusher  
The present invention relates to a tunnel boring machine particularly a micro-tunnelling machine having a cutting head rotatably mounted on the end of a housing and being driven by a first motor...
5992941 Conveyor for ultra thin seam coal mining  
A conveyor cart for a mining machine is made from readily available components, including conventional golf cart components, and has a maximum height of 20 inches or less (e.g. about 18 inches) so...
5879057 Horizontal remote mining system, and method  
A horizontal remote mining system comprising a water jet cutting head, down hole crusher, jet pump, and guidance system for orchestrating select excavation of a horizontal borehole. The system is...
5692807 Highwall mining apparatus  
An apparatus for mining aggregate material from a partially exposed seam adjacent a bench on a surface mine and which extends from the bench at an elevation and angle relative to the bench, The...
5641207 Mining machine  
A boring machine for use in mining having a base, a hydraulic motor and a cutting member. The hydraulic motor includes a pair of hydraulically activated oscillating drive units, a cylindrically...
5498068 Non-entry mining method equipment  
A jet boring pre-assembly for excavating an underground area susceptible to disaggregation and for control from a working gallery below the area includes a cutting head for the top of the assembly,...
5470132 Tunnelling head and method  
A micro tunnelling head and earth boring method is illustrated which includes utilizing a cutting head (G) spaced forwardly of a cylindrical articulated housing (A) having a transverse bulkhead (B)...
5431238 Drilling tool for use in constructing large diameter piles, ventilating shafts and other similar mining works  
A drilling tool is adapted for being releasably mounted to a lower end of a rod string (20) of a drilling rig (30) and includes a container (2) having a cylindrical or truncated-cone shape fitted...
5393172 Shield tunneling machine  
A shield tunneling machine comprises a shield body having a soil chamber, an inside chamber and a partition wall. The soil chamber has a conical peripheral surface converging gradually rearward. A...
5330257 Auger mining machine  
An auger mining apparatus includes a support frame holding a tilt platform. A tilt mechanism displaces the tilt platform at a pitch between 0°-45° relative to the support frame. A stacked, dual c...
5261729 Apparatus for continuous mining  
An apparatus for mining aggregate material from a seam includes a miner for cutting material from the seam and a conveyor for conveying the won aggregate material from the miner for recovery. The...
5255960 Tunnel drilling apparatus with drill waste removal  
A drill head for drilling a tunnel in rock or soil comprises a rotatable drill bit assembly and a cylindrical protecting tube. The bit assembly comprises a bit holder and a cylindrical drill bit....
5203614 Tunneling machine having liquid balance low flow slurry system  
A tunneling machine convertible between a "closed mode" and an "open mode" of operation, having a rotatable cutterhead with muck openings communicating with a pressurizable cutterhead chamber and a...
5127711 Hopper and hood combination for tunneling machine and tunneling machine having the same  
A hopper and hood combination for muck transfer in a tunneling machine, and a tunneling machine having the same, in which a muck collar is mounted to a cutterhead support and projects into a...
5125768 Method and apparatus for the production of underground pipelines  
A method and apparatus for producing an underground pipeline from an excavated hole uses a drill head with a suitable tool attached thereto. Loosened soil is transported out of the drilled tunnel...
5123708 Shield tunnelling machine  
A shield tunnelling machine is provided. Such shield tunnelling machines include a tubular shield body; an excavating cutter assembly disposed on a front end of the body; a partition wall for...
5104262 Tunnel boring machine  
Tunnel boring machine comprising a number of swingable arms (11,12,13,14) provided with boring tools (41,42,43,44) for the working of the tunnel wall outside its normal diameter. The arms may be...
5078545 Method for boring hole in the ground and apparatus therefor  
A system for boring a hole in the ground including an excavating machine provided with a tubular body; an excavating mechanism supported by the body; a mechanism for shifting the excavated...
5072992 Shield unit  
A shield unit has a cylindrical shell made up of two sections arranged in succession one after the other, that is, a head section and a tail section which are connected by a traversing mechanism....
5056655 Highwall miner with conveyor module  
Conveyor belt supporting modules associated with an endless conveyor belt assembly for conveying mined material from a mine bore to the mouth of the bore allows for necessary length of conveyor...
5022789 Method and machine for constructing shafts  
There are disclosed a method and a machine for constructing a shaft having a substantially circular cross-section. According to the present invention, the shaft having a shotcrete formed on a...
5005911 Quadrishoe tunnel boring machine  
A tunneling machine body carrying a rotary cutterhead can be advanced continuously by exerting advancing thrust force on it, first by top and bottom jack bipods reacting from top and bottom anchor...
4848963 Earth pressure shield  
The earth pressure shield for a tunnel and/or gallery excavator has a front working compartment formed by a separating wall having a digging tool and an annular reinforcing space substantially...
4818026 Shield type tunneling apparatus  
A shield type tunneling apparatus comprises: a shield body having in its front portion a cutter-head compartment for digging a tunnel through bedrock, the cutter-head compartment being rotatably...
4790395 Pipe-driving apparatus  
Pipe-driving apparatus used to create a pipe line of small diameter uses a pressing station in an access trench to drive in pipe sections one by one. A boring head and conveyor worm operates at the...
4763955 Pitch seam mining  
A miner, and method of mining, are provided for pitch seam mining of coal. The cutting heads powered from a power source at the mouth of the seam are introduced into the seam with a desired angle...
4763954 Excavator and conveyor of an underground pipeline jacking apparatus  
The invention relates to an excavator and conveyor for an underground jacking apparatus for pipelines having a preferably non-man-sized rated cross section, which is driven into the surrounding...
4732226 Drilling machine  
A shaft drilling machine comprises a drill head carrying drill tools thereon, a device for guiding the drill head in a shaft, a device for advancing the drill head in the shaft, and drive...
4699429 Mining machine system  
A mining machine system for deep boring a hole in a seam includes a cutting head, a drill pipe, a power unit for driving the cutting head, a recovery mechanism for the fluidized conveyance of the...
4629255 Tunneling machine  
A tunneling apparatus has a lateral shield having a front end normally engaged longitudinally against a tunnel end face, a digging tool at the front end of the shield and engageable with the tunnel...
4624605 Shield tunneling apparatus  
Method for thrusting a shield for use in tunneling includes the steps of causing a rotary head, provided at the front portion of a shield body, an eccentric motion so that earth, soil or sand...
4607889 Shield tunnel boring machine  
A shield tunnel boring machine having at its boring head a pressure-resisting mud kneading chamber defined by a bulkhead, wherein the bulkhead is divided into outer peripheral and central bulkhead...
4568126 Method and machine for removing blockage and silt from abandoned auger holes  
A method and machine for removing blockage and silt from abandoned auger holes preparatory to mining a portion of the remaining ore or preparatory to the placement of charges in said holes....
4558906 Shield machine  
A shield machine for enlarging a portion of an existing tunnel includes an inner and outer double cylinder shaped shield machine body with a cylindrical outer shield portion and a cylindrical inner...
4555064 Pebble-stone crushing device for use in excavator for laying pipelines underground  
A pebble-stone crushing device for use in an excavator for laying pipelines underground has a plurality of rotor teeth formed integrally with the rear face of a cutter head which is mounted in the...
4506931 Method and apparatus for mining  
A method of mining a mineral deposit from a remote point, particularly useful in mining pitching or horizontal seams, comprises boring, casing and preparing a log of a probe hole; the casing will...
4480872 Modified strip mining apparatus  
An apparatus for strip mining using a power section driven into the cool and a conveyor section to transport the mineral out of the cut. The power section comprises a power driven cutter blade and...
4456305 Shield tunneling machine  
A shield tunneling machine having incorporated therein an earth removing apparatus which comprises a tubular casing having an earth inlet at one end and a closable earth outlet at the other end,...
4444278 Rotatable drilling head  
A drilling head for use in mining operations comprises a cylindrical drum having an open rear end and defining an interior cavity, an exterior spiral arranged to forwardly advance mined particles,...
RE31511 Rotary cutterhead for an earth boring machine  
The main frame of the cutterhead comprises a plurality of radial spoke beams which are interconnected between a box-like hub structure and an annular box beam by which the cutterhead is mounted for...
4391467 System for producing a uniform rubble bed for in situ processes  
A method and a cutter for producing a large cavity filled with a uniform bed of rubblized oil shale or other material, for in situ processing. A raise drill head (72) has a hollow body (76) with a...
4332420 Reciprocably supported dual drive member and features thereof  
The reciprocably supported member is accompanied by means whereby its stroke can be relocated so that it can be used to drive its support if desired, even while it is simultaneously driving a tool...
Matches 1 - 50 out of 167 1 2 3 4 >