Class 299/85.1 - Plural heads moving relative to each other

Subclass of Class 299 - Mining or in situ disintegration of hard material
Definition: Cutter tooth or tooth head in which at least two of the
No. of patents: 33
Last issue date: 03/01/2011

Number	Title	Issue Date
7896445	Method and apparatus for the milling cutting of materials An apparatus for the milling and/or drilling cutting of materials, in particular for the removal of rock, minerals or coal, with a tool drum which is mounted on a drum carrier rotatably about a drum axis, in which a plurality of tool shafts, which carry cutting tool...	03/01/2011
7631942	Device for milling rock and other materials and method for milling rock or the like using said device The invention relates to a device for milling rock or other materials. Said device comprises a spindle drum (13) which is rotatably mounted on a drum support (11) and in which a plurality of tool spindles (22) are received to be rotatable about ...	12/15/2009
7490911	Drive device for rotating and oscillating a tool, and a compatible tool for mining A drive device for rotating tools operating with oscillation superimposition, including a drive housing, a carrier sleeve mounted rotatably within the drive housing, a drive shaft mounted rotatably therein, a tool carrier to receive working tools and an oscillation-...	02/17/2009
7438365	Mining device A mining device for subsurface extraction of raw materials off rocks includes bracing means for the reversible bracing of the mining device in a hollow space, a frame, and tunneling means stationarily connected with the bracing means, whereby the frame is movable by...	10/21/2008
7278228	Hinged tooth The invention relates to a hinged tooth for a cutting wheel comprising a pivot bearing for pivotally supporting on a pivot pin located on a cutting wheel hub, a cutting tooth support extending from the pivot bearing and a steering arm extending from the pivot bearin...	10/09/2007
7128375	Method and means for recovering hydrocarbons from oil sands by underground mining The present invention is directed generally to the combined use of slurry mining and hydrocyclones to recover hydrocarbons, such as bitumen, from hydrocarbon-containing materials, such as oil sands, and to selective mining of valuable materials, particularly hydroca...	10/31/2006
7097255	Method and means for processing oil sands while excavating The present invention is directed to the separation of bitumen, such as by the Clark process or by a countercurrent de-sander, in an underground excavation machine, such as a tunnel boring machine. ...	08/29/2006
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
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
6612655	Mining system and method featuring a bread loaf shaped borehole A method and apparatus for cutting a borehole substantially in the shape of a bread loaf within a mine includes four cutting systems. The first cutting system is a pair of three-armed, counter rotating, cutting heads which remove material from the mine fa...	09/02/2003
6561590	Cutting device with rotating disc A rock excavating or cutting device including a disc cutter that is driven by drive means to rotate in an oscillating and nutating manner by driving the disc cutter about separate oscillating and nutating axes aa, bb which are angularly offset from one an...	05/13/2003
6315365	Mining machine with core breakers In a driving or mining machine including cutter rolls or drums which are mounted for rotation on a cantilever arm pivotable in the vertical direction, bearings and/or gears are arranged in the axial direction of the cutter rolls or drums between parts of ...	11/13/2001
6270163	Mining machine with moveable cutting assembly and method of using the same A mining machine (20) for combined entry and retreat cutting of material located in underground seams including, a movable mainframe (21), a wing (50, 51) extending ahead of the movable mainframe, a cutter assembly (100) positionable proximate the end of ...	08/07/2001
6247758	Longwall coal cutter and loader A longwall coal cutter and loader for longwall mining operations has a machine body drivable along a longwall conveyor in the longitudinal direction of the longwall surface, and at least two cutting rollers complementing or overlapping each other with the...	06/19/2001
6003953	Cutter head with cutting members that rotate relative to each other A cutter head comprising a plurality of coaxially disposed transmission shafts including a central transmission shaft and at least two tubular transmission shafts with each shaft having a cutting member, the shafts being driven independently with one anot...	12/21/1999
5685615	Eccentrically driven percussive tools for treating materials An apparatus for treating rock, minerals or similar materials includes at least two tool-bearing sleeves supported by bearings. The tool-bearing sleeves are arranged in eccentric relationship to a common drive shaft. The tool-bearing sleeves are counterba...	11/11/1997
5439274	Rotary mine boring head having movable links with cutter bits A continuous mining machine having a cutter frame with two rotary boring heads mounted on this frame for rotation about axes extending longitudinally of the machine. Each boring head has a plurality of radially extending rotor arms which carry and support...	08/08/1995
5338104	Auxiliary cutter for a mining machine having coaxial cutter drums A mining machine has a forward rotating cutter head mounted on a boom. The cutter head comprises at least two cutter drums in co-axial end to end formation and spaced apart by an arm of the boom. An auxiliary cutter device is located in the space between ...	08/16/1994
5111879	Sanitary locking lip split well seal A well seal and split packer for a well seal. The well seal includes a split packer having interconnecting lips to allow the packer to be slipped around one or more installed drop pipes while providing an essentially leakproof seal after installation with...	05/12/1992
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
4883134	Milling machine for cutting trenches The invention relates to a motor-driven milling machine construction for cutting trenches in the ground, in which there are two rotating semi-drums with cutting tools at their periphery. The drums are mounted on a central support. The sole function of the...	11/28/1989
4768836	Coal shaver A coal shaver includes an elongated carriage body that can be pulled by a link chain back and forth in parallel with the side wall of a coal deposit and two shaver devices respectively mounted on the elongated carriage body near its opposite ends. Each sh...	09/06/1988
4627501	Borer head with planetary gearing In a borer head for drilling boreholes in rock structures and including a drive shaft connected to a drive of a drilling machine, a central shaft coupled to the drive shaft, and a tool holder with cutters driven by a planetary gearing connected to the cen...	12/09/1986
4436345	Continuous mining machine having contour cutters A boring type continuous mining machine having a plurality of boring heads each of which is adapted to cut a substantially rectangular profile bore in the mine face. Each boring head includes a primary cutter head and at least one contour cutter rotatable...	03/13/1984
4402371	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, a nose spiral disposed in advance of the drum and arranged...	09/06/1983
4391472	Core eliminator for mining, road working or earth moving machinery A core eliminator for mining, road working or earth moving machinery in which a bit carrying mounting means is movably secured to a driven element. Means are associated with the driven element and the movable mounting means so as to guide said mounting me...	07/05/1983
4273383	Mineral winning machines A mineral winning machine is moved back and forth along a mineral, e.g., coal, face to win mineral by a combination of cutting and wedging actions. To effect this winning mode, the machine has at least one cutting device with a cutting disk rotating in fr...	06/16/1981
4189187	Mineral mining planer having pivoted floor cutter carrier A mineral mining installation for winning material in a mineral mining working comprises a plough and a plough guide. The plough has a plough body movable along the plough guide, and the plough body is provided with a carrier for floor cutters. The carrie...	02/19/1980
4185876	Plural spaced cutter drums on pivotable elongate arm with loading means in the space A gearhead for a shearer type mining machine comprising an elongate arm pivotally attachable at or about its mid-position to a shearer type mining machine to provide an arm pivot axis extending laterally with respect to the longitudinal axis of the arm, t...	01/29/1980
4178040	Movable mining planer with direction responsive adjustable cutter depth An apparatus for winning material in a mineral mining working utilizes a mineral mining plough which is movable to and fro alongside a conveyor. The plough is provided with first cutter means arranged to win material lying in a first height range, and sec...	12/11/1979
4117897	Drill bit A drill bit comprising a body suspended in a well bore by an electrical cable which transmits power to a motor secured to the body and eccentric cam member rotated by the drive shaft of the motor and engagable with a plurality of reciprocal drill pins whe...	10/03/1978
4027918	Longwall coal mining machine with plural cutters on sub-ranging arm A coal mining machine intended to be used in a pit having a long-walled pit face and having a mechanism in which two cutting drums are attached to the main ranging arm of a ranging drum shearer through a sub-ranging arm and the position of said cutting dr...	06/07/1977
3995907	Underground excavating machine having independently movable half-frames The machine includes two half-frames vertically arranged side by side, with two parallel vertical shafts respectively supported by the two half-frames. A separate turret is pivotally supported around each of the shafts, each turret having a cutting head w...	12/07/1976

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Class 299/85.1 - Plural heads moving relative to each other