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| Number | Title | Issue Date |
| 7350875 | Underground mining machine The underground mining machine (10) according to the invention in known manner comprises a machine body (13) movable along a working face (11) and with at least one cutting and rolling unit (14) connected to the machine body by an extensi... | 04/01/2008 |
| 7325882 | Rock cutting machine A rock cutting machine including a boom rotatably mounted at a proximal end to a chassis adapted to be placed adjacent a rock face to be cut. The boom extends from the chassis to a distal end adjacent the rock face. A longitudinal boom axis extends between the proxi... | 02/05/2008 |
| 6944977 | Drum for an excavator that can be used in particular for the production of vertical trenches in hard or very hard soils Excavator drum for the production of vertical trenches, including a cylindrical shell (22) mounted so sa to rotate about its axis of revolution and a plurality of excavating tools (28, 30) mounted on the external face of the shell. The tools include a ... | 09/20/2005 |
| 6935542 | Device for retaining and for inserting a flexible tube assembly into a fluid container A device for use with a container having a container top includes a tubular retainer engaging the container top and a tube assembly. The tubular retainer has a retainer top, a retainer bottom, a longitudinal axis, and an inner passageway formed along the longitudina... | 08/30/2005 |
| 6286905 | Cutting device with vertical and horizontal movement A cutting device for performing a cutting operation, which can reduce wasteful cutting, can easily perform an accurate and neat cutting, and can have a long service life. The cutting device includes a guide supporting member, mounted to a distal end of a ... | 09/11/2001 |
| 6219945 | Excavating method A method of excavating an underground continuous ditch by rotating a chain type cutter 4 while pressing the cutter horizontally against the ground A, with the cutter positioned underground. According to this method, when a lower ground portion is left une... | 04/24/2001 |
| 6220670 | Method and apparatus for remote self-propelled conveying in mineral deposits A method and apparatus for mining of aggregate material from a seam includes a mining apparatus and a self-propelled conveyor capable of advancing or retreating in the seam on its own power and advancing and steering arrangement for the mining apparatus. ... | 04/24/2001 |
| 5626197 | Road scraper having vertically and horizontally displaceable auxiliary scraping device An improved road scraper includes a second scraping device mounted at a rear end of a road scraper of a known construction having a first scraping device. Between the road scraper and the second scraping device are disposed a vertical displacement mechani... | 05/06/1997 |
| 5308151 | Cutter wheel assembly for mining machine Mining apparatus is disclosed in which a cutting wheel supporting a plurality of roller-cutters rotates about a horizontal axis and is supported on a slewing boom for cutting a tunnel with a flat floor and roof and elliptical walls as it slews across a mi... | 05/03/1994 |
| 5221122 | Multipurpose mining machine A mining machine having a frame undercarriage having forward and rearward ends provided with a traction assembly for driving the frame undercarriage towards a seam face to be mined. A cutting assembly is provided which includes a plurality of rotatable ou... | 06/22/1993 |
| 5203615 | Full side shift system for detachable rotary apparatus A rotary apparatus which can be detachably mountable to a self-propelled vehicle, such as a skid-steer front end loader. The apparatus includes opposing first and second frame members and an axially rotatable work implement having front and rear peripheri... | 04/20/1993 |
| 4998777 | Coal-cutting machine having horizontally swivellable jib boom and vertically swivellable loading means A coal-cutting machine (1) having an all-round swivelling jib boom (6), on which cutting implements (17) are rotatably supported, and a loading platform (3) comprising a loading platform which can swivel about an axis (4) extending transversely to the lon... | 03/12/1991 |
| 4979781 | Bench mining method and apparatus A method and apparatus for bench mining employs a rotating wheel excavator with excavator wheel positioned outwardly to one side of a tractor unit for the excavator so that the tractor unit draws the excavation wheel along a bench line or cut line between... | 12/25/1990 |
| 4884848 | Device and method for exploiting material The openpit mining device includes a cantilever arm which is swivellable around a horizontal axis and carries a support or tool carriage. The support or tool carriage is shiftably supported in a transverse relation to the longitudinal axis of the cantilev... | 12/05/1989 |
| 4880491 | Guided roofing materials removal apparatus A roofing materials removal device provides a guide system which secures the device and the operator in position on an inclined roof so that the roof can be traversed at various positions along different travel paths while supported. The removal device co... | 11/14/1989 |
| 4838615 | Apparatus for excavating a recess Apparatus for excavating a tunnel of generally quadrilateral cross-section, the apparatus comprising a cutting head having the head being mounted for rotation about a first axis and a second axis to change the angle of inclination of the cutter. The cutte... | 06/13/1989 |
| 4838614 | Method of excavation and apparatus therefor A tunnel is constructed by progressively cutting away a predetermined depth of rock from a face using rotary diamond saws. Slots are cut into the face (12) at an acute angle to the face such that first slots intersect second slots to detach blocks from th... | 06/13/1989 |
| 4792190 | Machine for cutting curbstones, sidewalks or the like There is disclosed a machine including a powered truck-like vehicle having a support base and an apparatus mounted on the base for cutting a drive-in passage across a curbstone, a sidewalk or the like. The apparatus comprises two spaced parallel booms mou... | 12/20/1988 |
| 4688854 | Apparatus for making small-bore tunnels The invention relates to an apparatus for making small-bore underground tunnels. It contains a working tube which can be advanced in the direction of the developing tunnel, and an excavating unit mounted in the working tube and having an excavating tool. ... | 08/25/1987 |
| 4548442 | Mobile mining machine and method A first mobile mining machine for cutting mining tunnels in hard rock, which includes a horizontally swinging wheel-like cutterhead assembly mounted on a crawler and base frame assembly. The cutterhead assembly consists of a transverse horizontal axis whe... | 10/22/1985 |
| 4232905 | Tunnelling machine A tunnelling machine has a swing unit (31) that is swingable about a horizontal axis (I). The swing unit has a head (50) that rotates about an axis (II) that is transverse to said horizontal axis and passes the horizontal at a distance below the horizonta... | 11/11/1980 |
| 4197032 | Apparatus and method for forming a continuous strip of paving An apparatus for concurrently preparing a ground surface and forming a continuous strip of paving material thereon, and which is characterized by the ability to simultaneously grade the ground surface substantially coextensively with the successive slip f... | 04/08/1980 |
| 4188069 | Mining machine having walk-on platform on cutter arm In a cutting machine having a cutter arm which is mounted at one end for universal pivotal movement and which carries at its free end a cutting tool: a walk-on platform covering at least part of the cutter arm, said platform being box-shaped in cross-sect... | 02/12/1980 |
| 3997990 | Angularly disposed single wheel excavator An excavating and loading system includes an excavating wheel assembly at the front thereof and a plurality of conveyors for conveying the material from the excavating wheel assembly upward and rearwardly. The excavating wheel assembly includes at least o... | 12/21/1976 |
| 3982341 | Transverse oscillation for excavating and loading system An excavating and loading system including an excavating wheel assembly at the front thereof and a plurality of conveyors for conveying material from the excavating wheel assembly to the rear of the vehicle. The excavating wheel assembly has an excavating... | 09/28/1976 |
