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| Number | Title | Issue Date |
| 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 |
| 7258826 | Low dust preservative powders for lignocellulosic composites The manufacture of zinc borate and calcium borate powders in a water slurry and drying those powders in a controlled manner such as to leave a desired residual of moisture content uniformly dispersed throughout the product produces a low dust, flowable material. Thi... | 08/21/2007 |
| 7036890 | Core breaker for an earth strata cutting assembly A core breaker that includes a support that contains at least one bore wherein the bore is defined in part by an axial forward frusto-conical wall and further defined by an axial rearward cylindrical wall that contains a groove therein. The core breaker has an elong... | 05/02/2006 |
| 7029072 | Modified rumble strip cutter A rumble strip cutting machine having a drum that can be shifted from one side of the machine to the other. The machine includes a piston wheel that imparts an up and down motion to the frame so that rumble strips can be cut at desired intervals as the machine is dr... | 04/18/2006 |
| 6247757 | Rotatable implement depth control apparatus A rotatable implement depth control apparatus consisting of a mounting plate having an upper end, a lower end, a forward face, a rearward face, a right side, a left side, and a lateral axis extending from the right side to the left side, the mounting plat... | 06/19/2001 |
| 6224164 | Mining machine with detachable articulated cutting assembly A mining machine that has a chassis that defines an operator area thereon and has a mining assembly attached thereto. A vertically extending shield assembly is supported on the chassis to prevent material that is dislodged during the mining process from i... | 05/01/2001 |
| 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 |
| 6027175 | Method and apparatus for highwall mining A method of highwall mining, the method includes providing a continuous miner (11) connected to a car train (12) extending to a launch vehicle (13). As the miner (11) progresses down an inclined mine tunnel (15) additional cars are added to the train (12)... | 02/22/2000 |
| 6016585 | Rotary sludge remover A rotary sludge cutter for digging up sludge to be removed by pumps on a remote controlled sludge removal apparatus. The invention includes a plurality of cutting spikes mounted on a cylindrical, rotating drum connected to a sludge removal apparatus. The ... | 01/25/2000 |
| 5964507 | Transmission gearcase for multiple cutting heads An apparatus is provided for mining a mineral seam. The apparatus includes a frame, a propulsion system as well as first and second cutters and a cutter motor for winning aggregate material from the mineral seam. The apparatus is characterized by the cutt... | 10/12/1999 |
| 5676125 | Excavator mounted concrete saw Rotary disk saw is adapted to be mounted on an earth excavator or the like, having an articulating and rotatable member for a boom. To this excavating boom, which normally carries a shovel, the saw carrying unit is attached and includes a compound pivot m... | 10/14/1997 |
| 5497567 | Wide trencher with plurality of chain type diggers An improved excavating machine for digging an unusually wide ditch having a boom that supports a plurality of chain type digging apparatus. There is a head shaft at one end of the boom and a tail shaft at the opposed end of the boom. An intermediate shaft... | 03/12/1996 |
| 5478139 | Mobile digging/cutting system A system for crushing a wall of rock comprising a first device, such as a track hoe, for moving with at least two degrees of freedom, a second device, such as an articulating boom, secured to and moving with the first device for moving with at least two d... | 12/26/1995 |
| 5203244 | Device for cutting up a component of a nuclear reactor The device comprises a support (9) provided with means (12) for its demountable fastening to the reactor structure (1) above and vertically in line with the component (3), a turret (10) mounted rotatably on the support (9) about its vertical axis, a devic... | 04/20/1993 |
| 5143423 | Drum assembly for a continuous miner A cylindrical drum assembly is rotatably mounted transversely on the front of the boom member of a continuous miner. The drum assembly comprises a pair of independently operable drum sections. Each drum section is driven through an input shaft connected t... | 09/01/1992 |
| 5135287 | Curb cutter A curb cutter for use by a mobile operator comprises a boom having a saw assembly at one end thereof. The boom is user-movable through vertical and lateral directions so as to place the saw at a desired location. The up and down movement of the boom is co... | 08/04/1992 |
| 5108154 | Drive arrangement for shearing drums A drive arrangement for shearing drums. Final gear reduction stages are arranged inside the shearing drum (5) and at least one reduction stage is designed as a planetary gear mechanism. The first gear reduction stage arranged inside the shearing drum (5) ... | 04/28/1992 |
| 5102199 | Continuous mining machine with a boom assembly providing different cutting heights and method of converting A self propelled continuous mining machine includes a mobile frame assembly having a first pivot point for a boom assembly or an end of a piston cylinder assembly and a second pivot point for pivotally connecting an end of a piston cylinder assembly or pi... | 04/07/1992 |
| 5072994 | Shearing machine with movable shearing drum and conveyor A shearing machine with shearing heads or drums rotatably mounted on a luffable shearing arm and a loading ramp or a conveyor running in the direction of the heading face for receiving and conveying away the sheared material. The loading ramp or the conve... | 12/17/1991 |
| 5050934 | Shearing machine with roof-bolt drilling and setting devices A shearing machine with roof-bolt drilling and setting devices which are jointedly connected to the shearing machine and can be hydraulically braced between roof and floor of the roadway. A multiplicity of roof-bolt drilling and setting devices are connec... | 09/24/1991 |
| 4966417 | Device for guying a drift advancing machine within a drift A device for guying a drift advancing machine within a drift has props which can be guyed between the drift roof and the drift floor and having articulated caps, connected to it. There are arranged at both sides of the longitudinal center plane of the mac... | 10/30/1990 |
| 4953916 | Drive arrangement for driving cutting rolls In a rotationally driven cutting roll for a machine for cutting ore or other rock material from a drift face, the roll is axially divided into a plurality of roll portions arranged end to end in juxtaposition along the drift face. The roll portions are ro... | 09/04/1990 |
| 4936632 | Continuous miner with duct assembly A self-propelled continuous mining machine includes a mobile frame assembly having a front end portion with a boom assembly pivotally retained thereon. A dust collecting system is positioned on the mobile frame assembly for inducing a flow of air through ... | 06/26/1990 |
| 4887868 | Dual auger continuous mining machine A continuous mining machine comprising a forward cutter assembly connected for horizontal pivotal movements with respect to a rearward assembly mounted on the endless track assembly. The cutter assembly includes a central frame and a pair of said frames m... | 12/19/1989 |
| 4878714 | Cutting machine for cutting and carrying away material from a work face Then invention relates to a cutting machine having cutting heads or drums which are supported to be freely rotating on a pivoting cutting arm, with a loading ramp or conveyor which extends in the direction to the work face to receive and transport the cut... | 11/07/1989 |
| 4840432 | Continuous miner with duct assembly A self-propelled continuous mining machine includes a mobile frame assembly having a front end portion with a boom assembly pivotally retained thereon. The outer end portion of the boom assembly carries a dislodging head for removing material from a mine ... | 06/20/1989 |
| 4794708 | Trenching machine boom assembly A trencher machine digging boom assembly having a mounting arrangement for the digging boom wherein the boom includes a boom attaching weldment that is pivotally mounted to a boom pivot casting. The boom pivot casting is rigidly mounted to a trencher fram... | 01/03/1989 |
| 4785560 | Continuous excavating apparatus An excavating apparatus for breaking and removing material away from an upright face of material is disclosed. The apparatus includes a rotary cutting head mounted between the fore ends of a pair of boom arms. The boom arms are pivotally mounted relative ... | 11/22/1988 |
| 4786112 | Driving arrangement for driving the cutting rolls of a drift advancing machine In a drift advancing machine cutting rolls are rotatably supported on a centrally arranged pivoted arm. Each cutting roll has a separate drive, each of which comprises a drive motor, a drive shaft and a driven shaft being driven via a bevel gear gearing. ... | 11/22/1988 |
| 4688855 | Drift advancing or exploiting machine A mine drift advancing machine includes a cutting arm pivoted at its rear end to the machine chassis for movement about a horizontal axis and at its front end supporting a carrier which is pivoted to the arm for movement about a vertical axis. At least tw... | 08/25/1987 |
| 4682819 | Method and apparatus for drilling hard material A method for drilling a hole in a hard material such as rock. According to this method, the rock is fragmented by impact along spaced-apart, parallel paths while it is simultaneous fragmented by shear between these paths. An apparatus for carrying out thi... | 07/28/1987 |
| 4669786 | Core breaker A core breaker comprising a plurality of bits mounted on a suitable support and capable of being readily replaced when the bit becomes worn or damaged during the breaking of a core which is left between the conventional rotating cutter drums of a motorize... | 06/02/1987 |
| 4669785 | Cutting machine A cutting machine includes a universally swivellable cutting arm (6) having rotatably supported on its free end at least one cutting head (10, 11). A backwardly conveying screw conveyor (8, 9) is connected with the cutting arm (6) at both sides of the cut... | 06/02/1987 |
| 4664449 | Drift advancing or mining machine A drift advancing or a partial-cut mining machine (1) comprises a cutting arm (11) being swivellable in a height direction around an axis (10). The front end of the cutting arm (11) is equipped with guides (26) transversely extending relative to the longi... | 05/12/1987 |
| 4648660 | Method and apparatus for mining machine cutter head An improved cutting head for a mining machine having a rotary cutting head and shaft removably and rotatably attached to the forward end of a mining machine such that the shaft and cutting head alone may be removed from the forward end of the machine and ... | 03/10/1987 |
| 4641889 | Cutting machine In a cutting machine, a cutting arm is swivellable around a horizontal axis and around a vertical axis and carries on its free end a cutting tool. The horizontal swivelling axis of the cutting arm is displaceable relative to the frame of the cutting machi... | 02/10/1987 |
| 4641888 | Material gathering device for a mining machine An improved material gathering device is for a mining machine or the like of the type which includes a mobile body supporting a mining head at a forward end thereof for dislodging material from a mine face. A gathering platform is on the mobile body adjac... | 02/10/1987 |
| 4626032 | Rock ditcher Apparatus for excavating hard soils comprising support means, an endless chain capable of movement relative to said support means, drive means for moving said endless chain, means integral with said endless chain operable to contact said hard soils, and m... | 12/02/1986 |
| 4615565 | Tunnel or road header A tunnel or road header is provided with a caterpillar running gear and a portal frame. A cutter head means engageable with a tunnel face is mounted displaceably on the frame on a horizontal track extending transversely of the longitudinal direction of th... | 10/07/1986 |
| 4582363 | Drive assembly for mining machine cutter drum A continuous mining machine includes a mobile body portion with a cutter drum member rotatably mounted on the front of a boom member which extends forwardly of the body portion. The cutter drum member has an intermediate drum section and a pair of canted ... | 04/15/1986 |
