Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8186764 | Noise reduced continuous miner A mining machine comprising a discharge boom including a tail slide plate slidably connected between left and rear side frames, and a tail roller assembly mounted on the tail slide plate. The tail roller assembly includes a take-up roller mounted centrally between t... | 05/29/2012 |
| 7931341 | Narrow bench mining system A launch vehicle (10) is provided for a continuous mining system including modular conveyor units (U) that are connected together to form a conveyor train. The launch vehicle (10) includes a main frame (12) for supporting a rearmost conveyor uni... | 04/26/2011 |
| 7677674 | Cutting machine In a cutting machine (1) with cutting heads or rollers (7) rotationally mounted on a pivotable cutting arm (6), including a loading ramp or a conveyor (9) extending in the direction to the mine face for receiving and removing the cut mate... | 03/16/2010 |
| 7594702 | Highwall mining system for transporting mined material from a mined hole to an outside area A mining system for advancing and retrieving a material transfer unit, such as a car, sled, beam or other vehicle commonly used in the mining industry to transport ores or minerals from a mine, into and out of a mine. A single material transfer unit is connected to ... | 09/29/2009 |
| 7332007 | Dusting device with multiple stream nozzles A dedusting device 1 with a demister 15 advantageously arranged standing obliquely has a very compact construction because sufficient moistening or wetting of dust-containing crude air 24 is possible through the use of intensively acting multipl... | 02/19/2008 |
| 7219964 | Milling machine as well as method for working ground surfaces At a milling machine to work ground surfaces, with a machine frame, a milling drum supported at the machine frame, at least one transport device arranged at the machine frame which accepts the milled material from the milling drum, as well as with a suction device f... | 05/22/2007 |
| 7207633 | Scaling assembly A scaling apparatus comprises a hammer component and a pick component which includes a tooth. The apparatus also includes a mechanism for moving the pick component with respect to the hammer component to thereby impart a scaling force to and through the tooth. In a ... | 04/24/2007 |
| 7198332 | Device for producing a gas-liquid mixture in the vicinity of cutting tools In a device for producing a gas-liquid mixture and, in particular, air-water mixture in the region of cutting tools, particularly chisels, arranged on at least one cutter head (10) rotationally mounted on a cutter arm (5) of a cutting machine (1... | 04/03/2007 |
| 7191889 | Remote controlled swing auger system A remote controlled swing auger system for efficiently manipulating a position of a swing auger. The remote controlled swing auger system includes a swing auger connectable to a main auger, a swing hopper connected to the swing auger, a plurality of front wheels and... | 03/20/2007 |
| 7175364 | Suction device and suction method for the disposal of dust in milling machines Disclosed is an automotive milling machine for machining ground surfaces, comprising an engine frame (2), a movable milling drum (8) which is mounted on the engine frame (2), at least one conveying device (14, 18) which is arranged on the... | 02/13/2007 |
| 7175237 | Hewing or cutting roll In a hewing or cutting roll including a central roll part and at least one lateral roll part telescopically extractable in the axial direction of the roll, wherein the central roll part and the extractable roll part have each a connection site for a hydraulic cylind... | 02/13/2007 |
| 7131704 | Shiftable conveyor for road milling machine A material collection device for particles received from a processing device on a road processing machine. The material collection device comprises a guide having a material discard opening and an attachment face. A conveyor support is shiftably fixed to the guide a... | 11/07/2006 |
| 7040837 | Self-propelled road milling machine with cooling system A self-propelled road milling machine is equipped with a cooling system comprising a fan for drawing in air, a cooler, and a suction channel. The suction channel has a vent opening facing the cooler and an intake opening. In relation to the longitudinal axis of the ... | 05/09/2006 |
| 7036798 | Mobile barrier to control litter and wind A mobile barrier for use in wind control, reduction of blowing litter and suspension and transport of airborne contaminants with applications in areas of landfill maintenance, agriculture, erosion control, and snow control is described. The mobile barrier is a large... | 05/02/2006 |
| 7013937 | Apparatus and process for mining of minerals Apparatus for transporting mineral from a point of mining to a remote location, the apparatus including a mobile mineral breaker rig (MBR) having a mineral outlet, the rig including a fluid inlet pipe for receiving conveying fluid, a mineral inlet for introducing mi... | 03/21/2006 |
| 6988775 | Scrapping method of building and scrapping machine The method of demolishing a building includes self-propelling a demolition machine into the building, operating the demolition machine so as to form a movement hole at a floor part of an upper story, moving the demolition machine to the upper floor via the movement ... | 01/24/2006 |
| 6929330 | Method and system for mining hydrocarbon-containing materials The present invention is directed, inter alia, to devices and methods for excavating valuable materials, particularly soft ores such as oil sands, oil shales, and the like, that use one or more of a number of features, including backfilling for ground support, a sma... | 08/16/2005 |
| 6926368 | Method and apparatus for remote self-propelled conveying in mineral deposits A method and apparatus for the mining of 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 an advancing and steering arrangement for the mining apparatus. The self-prope... | 08/09/2005 |
| 6817678 | Auger mining system A mining apparatus 10 to mine coal from a seam 11. The apparatus 10 includes a continuous miner 12 to form a mine road 13. Extending along the road 13 is a conveyor 15 having a forward end 20 to which the mined... | 11/16/2004 |
| 6733086 | Vacuum system for milling machine A vacuum system is mounted on a portable milling machine for extracting material cut by the milling drum of the machine from the surface of a roadway. The milling machine includes a frame, a propulsion system for advancing the machine across a surface to be milled, ... | 05/11/2004 |
| 6578926 | Mining machine having stabilizing apparatus and stabilizing apparatus A mining machine having a stabilizing apparatus includes a mining machine and a stabilizing apparatus attached to the mining machine. The stabilizing apparatus includes a stabilizing element and a moving arm attached to the stabilizing element and the min... | 06/17/2003 |
| 6401912 | Conveyor pan assembly with replaceable deck A conveyor pan assembly, and a corresponding conveyor line, for an armored face conveyor is provided wherein each pan assembly has a replaceable upper deck plate fabricated of wear-resistant steel. A lower support plate of mild steel is mechanically attac... | 06/11/2002 |
| 6296318 | Device for milling off ground surfaces especially roadways In a device for milling off ground surfaces, especially roadways, having a wheel frame carrying a machine frame, a milling roller supported in the machine frame and extending transversely to the direction of travel, at least one conveyor means arranged in... | 10/02/2001 |
| 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 |
| 6109699 | Tow line equipped remote mining machine and method A method and apparatus for advancing cables and hoses to a remotely operated mining machine and retrieval of the machine in case of accident, and for remote haulage of material in a self-propelled vehicle guided within a mine opening, so as to avoid inter... | 08/29/2000 |
| 6036276 | Conveyor lift and service shoe assembly and method of moving A longitudinally extending conveyor discharge section is connected for horizontal and vertical pivotal movement on a frame of a mining machine. A pair of service shoes is connected at one end to the machine frame below the conveyor support frame for pivot... | 03/14/2000 |
| 6007157 | Slidably displaceable duct assembly for a mining machine An apparatus for filtering airborne contaminates that has a frame member and a collection duct attached thereto. A duct assembly is slidably supported on the frame member and selectively movable along a linear path between a first position adjacent the fr... | 12/28/1999 |
| 5997101 | Surface-assisted continuous underground mine conveyor A system for providing utilities and support infrastructure on a continuous basis from the surface to the cutting face of an underground operation. A flexible belt structure system incorporates water supply and discharge lines, power and communication cab... | 12/07/1999 |
| 5997100 | Inertization system for highwall mining A highwall mining system for mining aggregate material from a seam (8) includes a mining device (9) for cutting aggregate material from the seam (8) thereby to form a drive (10) in the seam (8), a conveying device (11) for conveying mined aggregate materi... | 12/07/1999 |
| 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 that it can be effectively utilized with a continuous mine... | 11/30/1999 |
| 5967616 | Electrical control system for apparatus and method for continuous underground mining Apparatus for controlling the operation of an underground mining system including a continuous miner, a roof bolting machine, a tramming conveyor and a control cab operatively connected to the tramming conveyor. The apparatus includes a master computer pr... | 10/19/1999 |
| 5941154 | Guide shoe for a cutting machine The guide shoe according to the invention for cutting machines with a pintype drive has an insertion pocket in which a coupling piece engages from above, which coupling piece is arranged on a guide arm of the cutting machine and to which the guide shoe is... | 08/24/1999 |
| 5913573 | Roof bolt drilling and setting apparatus A displaceable mining machine (1) comprises roof bolt drilling and setting apparatus (5, 13). A conveyor (6) is articulately pivotable in a rear portion of the machine about axes (16, 16') in order to provide space for a roof bolt drilling and setting app... | 06/22/1999 |
| 5871260 | Mining ultra thin coal seams A continuous mining machine is provided for mining ultra thin coal seams, e.g. seams having a thickness of about 24 inches or less. A chassis supported by crawler tracks has a substantially horizontal axis powered cutter head mounted to its front and a co... | 02/16/1999 |
| 5810447 | Apparatus and method for continuous mining Apparatus for controlling the operation of a mining system including a continuous miner, a tramming conveyor and a load-out vehicle operatively connected to the tramming conveyor. The apparatus includes a master computer processor on the continuous miner ... | 09/22/1998 |
| 5795032 | Mining machine with multiple propulsion members A mining machine that has an elongated frame member and a mining assembly attached thereto for dislodging material from a seam upon contact therewith. The mining machine is equipped with at least one first propulsion member for propelling the mining machi... | 08/18/1998 |
| 5779321 | Swing tail assembly for miner A swing tail assembly rotates a swing tail conveyor relative to a miner conveyor including a mounting assembly mounting a drive arrangement on a swing tail conveyor. The drive arrangement includes a hydraulic motor, a differential planetary speed reducer ... | 07/14/1998 |
| 5720527 | Continuous highwall mining machine with armless conveyor A continuous highwall mining machine (10) includes a frame (12) and a ground engaging loading shovel (32) that is mounted to extend forwardly from the frame. A cutter (16) for winning aggregate material is mounted to the frame (12) so as to extend above a... | 02/24/1998 |
| 5673974 | Dry dust removal device The dry dust removal device for tunnelling or extraction machines includes a suction fan (15) and suction openings (14) close to the cutting rolls (23). There is a filter element (12) arranged above the conveyor device (2) of the tunnelling or extraction ... | 10/07/1997 |
| 5611421 | Method of installing multiple-lift conveyor system A method of installing a multiple lift, vertical conveyor system in a conveyor shaft includes steps of: erecting a framework for the vertical conveyor system, installing a first belt for operation on the framework; feeding a second belt into position for ... | 03/18/1997 |
