Boring Means Including A Continuously Rotating Bit Describing A Noncircular Cross-sectional Bore Patents (Class 175/91)
  • Publication number: 20150096806
    Abstract: A system and method are provided for providing access to surfaces within a formation is provided, the method including: providing a wellbore from a first surface location to a second surface location; inserting into the wellbore a cylindrical cutting assembly connected to at least two wellbore tubulars, one of the wellbore tubular extending to each of the first surface location and the second surface location; and rotating the radial cylindrical cutting element.
    Type: Application
    Filed: August 13, 2014
    Publication date: April 9, 2015
    Inventors: Ernesto Rafael FONSECA OCAMPOS, Duncan Charles MACDONALD, Francisco Jose CHACIN, Anastasia DOBROSKOK, Yinghui LIU, Benjamin MOWAD, Mark William DYKSTRA
  • Publication number: 20140338982
    Abstract: A drill bit for use in horizontal directional drilling. In a preferred embodiment the drill bit has a connector section having a first axis of rotation. The connector section is used to connect the drill bit to a beacon housing for thrust and rotation therewith. A bit body is disposed next to the connector section and slopes from the connector section to a front nose section. The front nose section has a frontwardly facing surface that supports a plurality of cutting teeth. The front nose section and the bit body comprise a second axis of rotation about which the front nose section and the bit body are rotated. The first axis of rotation and the second axis of rotation are angularly offset at an offset angle of between four degrees and ten degrees.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 20, 2014
    Applicant: Radius HDD Direct LLC
    Inventors: Ronald F. Wright, JR., David G. Bullock
  • Patent number: 8865309
    Abstract: The present invention includes compositions and methods of supplying a corrosion inhibitor including placing a corrosion inhibitor attached to a nanostructure carrier, placing the nanostructure carrier containing the corrosion inhibitor at a location and the nanostructure carrier is capable of releasing the corrosion inhibitor.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 21, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Deepthi R. Setlur, Stefan M. Butuc
  • Patent number: 8383559
    Abstract: The present invention includes compositions and methods of supplying a corrosion inhibitor including placing a corrosion inhibitor attached to a nanostructure carrier, placing the nanostructure carrier containing the corrosion inhibitor at a location and the nanostructure carrier is capable of releasing the corrosion inhibitor.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 26, 2013
    Assignee: National Oilwell Varco, L.P.
    Inventors: Deepthi R. Setlur, Stefan M. Butuc
  • Publication number: 20120118644
    Abstract: The invention relates to a method for drilling shafts (2) in ground layers (3). The method comprises of arranging a borehole casing (4) in the ground (3), lowering into the borehole casing (4) a hollow drill string (5) provided with a drill head (7) with cutting tools (8), arranging a water column (10) in the borehole casing (4), and then setting the drill string (5) into rotation (20) in the borehole casing (4) so that ground material (31) is dislodged by the cutting action of the cutting tools (8). At the position of the drill head (7) a first fluid (26) is injected under a first pressure into the ground layers (3) by means of one or more nozzles (25). The method has a higher drilling efficiency than the known method. The invention also relates to a device for performing the method, and a jack-up pontoon provided with the device.
    Type: Application
    Filed: March 18, 2010
    Publication date: May 17, 2012
    Inventor: Luc Vandenbulcke
  • Publication number: 20110259641
    Abstract: The present invention concerns an apparatus (1) for modifying sidewalls of a borehole. The apparatus includes a longitudinal housing (2) adapted to fit inside the borehole. The housing includes a first end portion (11), a second end portion (12), and a side portion (13) between said end portions (11, 12), adapted to face the sidewalls of the borehole. Means (5) are provides on the side of the housing (2) for removing material from said borehole sidewall. The housing (2) is adapted to be rotated with a controlled rotational speed in relation to said borehole sidewalls and to be fed in a controlled rate of longitudinal motion in relation to said borehole. Furthermore, the invention relates to a method for making a borehole with internal, helical grooves.
    Type: Application
    Filed: September 8, 2009
    Publication date: October 27, 2011
    Applicant: SINVENT AS
    Inventors: Mohammad Ali Taghipour Khadrbeik, Inge Manfred Carlsen
  • Publication number: 20110253450
    Abstract: The invention relates to a cutting device for producing vertically running trenches in the ground, comprising a trench wall cutter which has a cutting frame, a first cutting wheel arrangement and a second cutting wheel arrangement, whereby the cutting wheel arrangements are arranged adjacent to each other on the underside of the cutting frame in order to remove ground material underneath the cutting frame. The invention is characterized in that the trench wall cutter has an adjusting means, with which the first cutting wheel arrangement is adjustable in a direction lying obliquely underneath the second cutting wheel arrangement.
    Type: Application
    Filed: March 24, 2011
    Publication date: October 20, 2011
    Applicant: BAUER MASCHINEN GMBH
    Inventors: Maximilian ARZBERGER, Ignaz SEITLE
  • Publication number: 20110139511
    Abstract: The invention relates to a method for introducing a vertical shaft underground and to a shaft driving machine set up particularly for performing the method, wherein a cutting wheel is rotated solely about a horizontal axis until a penetration trough having a predetermined penetration depth is formed, and the cutting wheel is then also rotated about a central vertical axis until a shaft foot is dug out to the penetration depth. A relatively high sinking rate is thereby achieved for the shaft.
    Type: Application
    Filed: July 31, 2008
    Publication date: June 16, 2011
    Applicant: Herrenknecht AG
    Inventor: Werner Burger
  • Publication number: 20110079433
    Abstract: An assembly may be disposed within a drill string. The assembly may be moved within and along the drill string using hydraulic pressure. A core sample may be collected within the assembly, and the assembly may be retrieved to obtain the core sample. The assembly may include a seal that may be configured to form a seal with different inner diameters of a variable-diameter drill rod of the drill string.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 7, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20110031021
    Abstract: Described herein are roller cone drill bits and modified roller cones for use in drilling subterranean earth formations, and more specifically roller cone drill bits and roller cones having optimized spear point designs and blade orientations on at least one of the roller cones for reduced tracking and/or increased drilling performance during bit use. The roller cone drill bits include a bit body with a longitudinal axis, one or more bit legs depending from the body, and at least one roller cone attached to each of the bit legs and able to rotate with respect to the bit body, wherein at least one of the roller cones includes a spear point at the cone apex having two or more cutting blades, the cutting blades being oriented at a variety of non-equal, asymmetric angles about a central cone axis with respect to each other, such that tracking during drilling using the drill bit is minimized or eliminated.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Robert J. Buske, James Florey
  • Publication number: 20100275596
    Abstract: An apparatus for exploiting the thermal energy at the bottom of the ocean. The apparatus comprises a thermal energy harnessing assembly and a drilling assembly mounted thereto. The thermal energy harnessing assembly includes in-feed tube and out-feed tubes. The drilling assembly has openings in fluid communication with the in-feed tube and a thermal energy capturing conduit in fluid communication with the out-feed tube. When the drilling assembly engages a bottom surface of the ocean and fluid is introduced into the in-feed tube, fluid flows towards the drilling assembly and out of the openings at such a pressure as to drill into the bottom surface of the ocean allowing thermal energy to escape therefrom and to flow into the out-feed tube via the thermal energy capturing conduit.
    Type: Application
    Filed: September 29, 2008
    Publication date: November 4, 2010
    Inventor: St├ęphane Labelle
  • Patent number: 7559161
    Abstract: A soil working method, in which a soil working device suspended on at least one supporting cable is lowered by a supporting device and introduced into the ground. Subsequently, the soil working device is raised from the ground using the supporting cable and in addition to the supporting device a holding frame is provided and the supporting cable is connected to said holding frame. A soil working apparatus is also disclosed.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: July 14, 2009
    Assignee: Bauer Maschinen GmbH
    Inventor: Erwin Stoetzer
  • Publication number: 20090090560
    Abstract: The invention is related to a hole boring tool having a cylindrical sleeve, a piston assembly and the seal located on the piston assembly. The piston assembly is formed of a piston, a neck extending backward from the piston, and a handle extending backward from the neck. The seal is located on an outer surface of the piston and is in contact with an inner surface of the cylindrical sleeve.
    Type: Application
    Filed: September 2, 2008
    Publication date: April 9, 2009
    Inventor: Robert Jacob Hinke
  • Patent number: 7367143
    Abstract: A cutter for working the soil includes a cutting frame, at least two cutting wheels that are supported on the cutting frame in a rotatably drivable manner about parallel axes of rotation, and an adjusting device, The adjusting device functions to adjust the center distance between the parallel axes of rotation of the cutting wheels, and includes a knee-lever mechanism. A method for working the soil is also disclosed.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: May 6, 2008
    Assignee: Bauer Maschinen GmbH
    Inventor: Erwin Stoetzer
  • Patent number: 7192094
    Abstract: 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 section which is followed by a series of auger flights for conveying the bored coal back out of the respective hole. The augers are connected together in axially aligned pairs and are supported by the auger support assembly. The auger support assembly includes a pair of bearing housings that are disposed on drive shafts which extend outwardly from the first ends of a first pair of parallel augers and are received within the second ends of a second pair of parallel augers. The bearing housings are connected to each other by a tie bar. A single support leg extends downwardly from approximately the mid-section of the tie bar to engage the ground ledge that is formed between the counter rotating augers.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: March 20, 2007
    Inventor: Warren Kelm
  • Patent number: 7120565
    Abstract: The present invention aims to provide apparatus and method for determining non-circular figure to drill boring holes having a regular N-polygonal cross sections while retaining the advantage of the turning operation. For boring a boring hole (H) with a cross-sectional shape of a regular N-polygon having vertexes of N in number, a boring tool (T) having a cross-sectional shape of a regular (N?1)-polygon which is inscribed on the regular N-polygon of the boring hole is driven to rotate at a certain rotational speed around its center (G) and revolve at a certain revolving speed along a circle (R) which is concentric to the boring hole center (0) and has a certain radius. The boring tool (T) may be replaced with a jet of fluid. A boring tool (T) with a regular (N+1)-polygonal contour may be used instead.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: October 10, 2006
    Assignee: Chemical Grouting Company, Ltd.
    Inventor: Mitsuhiro Shibazaki
  • Patent number: 6679559
    Abstract: An auger flight support for use with an augering systems for mining which bores a pair of side-by-side holes through the coal seam using respective augers. Each auger includes a drilling section which is followed by a series of auger flights for conveying the bored coal back out of the respective hole. The auger flight support includes a pair of thrust bearing and housing assemblies which are tied together and each supported by a respective leg which lowers the friction between the auger flight and the bottom of the bore. This significantly reduces the power required to rotate the augers.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: January 20, 2004
    Inventor: Warren E. Kelm
  • Patent number: 6588515
    Abstract: The invention provides a rock drilling bit with a plurality of cutting teeth raked into the cut of the drilling bit. Such teeth are oriented at an angle of at least about 30 degrees relative to an imaginary line normal to a front surface of the cutting head from which the cutting teeth project. Such an arrangement provides the desired shear cutting force against the rock face while simultaneously reducing the shock and vibration applied to sonde housing and the drill string. The bit according to the invention may further incorporate a rear, frustoconical crushing surface that defines a space or zone crescent-shaped in cross-section that narrows from front to rear, and an improved replacable tooth for use on a rock drilling bit.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: July 8, 2003
    Assignee: Earth Tool Company, L.L.C.
    Inventors: Steven W. Wentworth, Robert F. Crane
  • Patent number: 5964305
    Abstract: A trench wall cutter with a drive mechanism which is attached to the cutting frame in a position which is spaced away from the bearing shield with a gear for driving at least one cutting wheel is provided. Between the drive mechanism and the drive pinion of the gear in the bearing shield there is a drive shaft. To reduce wear on the drive shaft bearing and gear wheel in the gear an external spiral tooth system is formed on one end of the drive shaft which fits into a connecting sleeve with an internal tooth system. In the internal tooth system the drive shaft with its external spiral tooth system is held rotationally fixed with the capacity to be deflected around the axis of the drive shaft. The connecting sleeve is also joined to the drive mechanism or drive pinion of the gear.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: October 12, 1999
    Assignee: Bauer Spezialtiafbau GmbH
    Inventors: Maximilian Arzberger, Ignaz Seitle
  • Patent number: 5937954
    Abstract: In a method for directional drilling with the aid of a drilling device having a drill pipe and a mining tool which moves on an orbit, the tool moves at an essentially constant angular velocity during straight drilling and the angular velocity is periodically changed during curved drilling, in order to thus create a smooth transition from straight drilling to curved drilling and to achieve more precise curve control.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: August 17, 1999
    Assignee: Tracto-Technik Paul Schmidt Spezialmaschinen
    Inventors: Franz-Josef Puttmann, Alfons Hesse
  • Patent number: 5190407
    Abstract: A rectangular shield excavating machine comprises a quadrangularly tubular shield body having a space for receiving an excavated matter at the front end, a rotor disposed in the space so as to be capable of being rotated onward and backward angularly around an axis extending in the direction orthogonal to a pair of facing exterior portions of the body, and excavating means disposed in the body, drive means for rotating onward and backward the rotor angularly around the axis, and for driving the excavating means. Large gravels contained in the excavated matter are crushed by being put between the rotor and a member defining the space with the rotationally reciprocating motion of the rotor.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: March 2, 1993
    Assignees: Kabushiki Kaisha Iseki Kaihatsu Koki, Penta-Ocean Construction Co. Ltd.
    Inventors: Toshio Akesaka, Kazuto Hamada
  • Patent number: 4844549
    Abstract: A milling machine for digging trenches in the earth, of the type comprising at least one substantially vertical support plate on both sides of which two milling drums are mounted for rotation about an axis substantially perpendicular to the plate, each of the drums carrying, on the one of its edges which is adjacent to the support plate, at least one tool which projects laterally with respect to this edge, and the support plate including opposite the trajectory of said tools, circular channels coaxial with the drums, through which the ends of these tools pass when the drums turn. The projecting tools of one of the drums redisposed at a distance from the axis which is different from the distance to the axis from the projecting tools of the other drum, the channels having, correspondingly, different radii.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: July 4, 1989
    Assignee: Soletanche
    Inventor: Bertrand Steff de Verninac
  • Patent number: 4834197
    Abstract: A trench cutter has cutting wheels with radially projecting cutting teeth and is arranged on a bearing bracket. Along the bearing bracket, hinged teeth are arranged on one edge of the cutting wheel hub. The hinged teeth have two arms, one arm serving as a control arm, which engages with a control ledge arranged on the bearing bracket, and the other arm serving as cutting tooth. The control ledge and the control arm form a wedge gear which forces the hinged teeth into a swing-out position in front of the free end of the bearing bracket.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: May 30, 1989
    Assignee: Bauer Spezialtiefbau GmbH
    Inventors: Karlheinz Bauer, Johann Haberer, Maximilian Arzberger
  • Patent number: 4824176
    Abstract: A milling engine for cutting trenches in ground or soil provided with at least one vertical support plate on both sides of which milling drums are supported for rotation about an axis perpendicular to said plate. One or more movable fingers are mounted on the lower edge of the plate for oscillating movement aobut the central axis of the plate during the rotation of the drums to remove a web of soil beneath the plate. Oscillation of the fingers is effected through camming surfaces formed on opposing inner ends of the drums which camming surfaces cooperate with a cam disposed at the inner ends of said movable fingers.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: April 25, 1989
    Assignee: Soletanche
    Inventor: Daniel Barre
  • Patent number: 4694915
    Abstract: A slotted wall milling cutter for producing a slotted wall in the ground has a drive motor fixed to the cutter frame and a gear means positioned between the drive motor and two cutting wheel gears and which is partly arranged in recesses of a bearing bracket. The cutting wheel gear is constructed as a multistage planetary gear. A particularly high torque is made available on the cutting wheels with this arrangement. In addition, the cutting wheels can be constructed with a very high effective cutting width compared with the total slot width.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: September 22, 1987
    Assignee: Karl Bauer Spezialtiefbau GmbH & Co KG
    Inventors: Karlheinz Bauer, Maximilian Arzberger
  • Patent number: 4629010
    Abstract: A device and process for sinking vertical wells. A pair of rotary digging heads have horizontal axes mounted on supports for movement of such axes towards and away from each other between a central position close to the axis of a well and a peripheral position adjoining the wall of the well being formed. The different heads are spaced apart so that the horizontal components of the reactions resulting from them cancel each other out. A process for using the device to form a well wherein the heads are initially close together and progressively move apart as the well is formed.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: December 16, 1986
    Inventor: Claude Sourice
  • Patent number: 4486050
    Abstract: A machine for boring a tunnel having an end face wall, a roof wall, a bottom wall, and opposite side walls. The machine comprises a rotatable cutting wheel means having an annular peripheral wall supporting a plurality of cutting devices and a generally convex-shaped upper wall supporting a plurality of cutting devices. The cutting wheel means is rotatable about an axis of rotation which is inclined in a forward direction relative to a plane perpendicular to the longitudinal axis of the tunnel for simultaneously cutting the tunnel face along two intersecting surfaces defined by the cutting devices on the annular peripheral wall and the cutting devices on the convex-shape upper wall. Support shoe means are mounted beneath the cutting wheel means for movably supporting the cutting wheel means on the tunnel floor.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: December 4, 1984
    Assignee: Harrison Western Corporation
    Inventor: Larry L. Snyder
  • Patent number: 4400036
    Abstract: A mining assembly includes a primary rotary cutter mounted on one end of a support shaft and four secondary rotary cutters carried on the same support shaft and positioned behind the primary cutters for cutting corners in the hole cut by the latter.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: August 23, 1983
    Inventor: John A. Bradley
  • Patent number: 4391472
    Abstract: 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 means at one time into the path of what would otherwise be a core formation, and to guide such mounting means at another time to an out of the way position so that the mounting means may clear the machinery involved. Such means may include resilient, cam, pneumatic, hydraulic, electronic or electric arrangements.In one form of the invention the mounting means is slidably mounted in ways provided in the driven element and urged by resilient means into contact with a cam which extends across a machine member located at one side of the driven element and to which the driven element is secured. In a modification of the invention the slidable mounting means rides on the cam instead of against it.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: July 5, 1983
    Assignee: The Cincinnati Mine Machinery Company
    Inventor: Claude B. Krekeler
  • Patent number: 4205881
    Abstract: A machine for mining hard material in-situ between adjacent auger holes is disclosed which is suitable for being drivingly connected to a conventional mining apparatus, particularly an auger mining apparatus. The mining machine includes cutting apparatus for mechanically contacting and dislocating hard material in-situ between adjacent auger holes. A power operated system is drivingly connected to the cutting apparatus for generating a cutting motion during the in-cutting operation. A guiding system is provided for maintaining the cutting apparatus in mechanical contact with hard material in-situ between the adjacent auger holes. In one embodiment of the invention a collection bin collects the dislocated material which is transported from the position at which the material is mined to a remote location for deposit.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: June 3, 1980
    Assignee: Patent Development, Ltd.
    Inventor: Leonard R. Nitzberg
  • Patent number: 4143919
    Abstract: A mining machine comprises two cutting units each including a rotatable cutting head having cutting faces directed forwardly and rearwardly with respect to the direction of movement of the machine, and an elongated housing incorporating a drive mechanism for the cutting head extending along the axis of rotation of the cutting head, the cutting units being mounted side-by-side with the cutting heads adjacent each other, each housing being movable about a vertical axis towards the end of the housing remote from the cutting head and about a transverse horizontal axis between the vertical axis and the cutting head, means for moving the cutting units about the said axes, the housings of the two cutting units being mounted on a common horizontal slideway, and the slideway defining the transfer horizontal axis about which the cutting units may be pivoted.
    Type: Grant
    Filed: October 4, 1977
    Date of Patent: March 13, 1979
    Assignee: Atlow Mining Development Consultants Limited
    Inventor: Gordon B. Dawson
  • Patent number: 4082362
    Abstract: Apparatus for forming bores and coal seams and the like and enlarging preexisting bores. A mining machine includes a nonrotatable body member, a conveyor in line with the body member, a pilot head, and a pair of wing cutters mounted to the body member for pivotal movement with respect to the body member. Structure is provided for moving coal or the like cut by the wing cutters during out-cutting toward the sides of the bore, the structure including a pair of shields, one associated with each wing cutter and disposed between the wing cutter and the body member and pilot head, and a generally conical member coaxial with the shaft for rotation of the pilot head. Stabilization of the body member, etc., within the bore is provided by a pair of wheel sets spaced along the length of the conveyor, and a pair of right angle guide members vertically displaced from the wheel structure of one the wheel sets.
    Type: Grant
    Filed: January 18, 1977
    Date of Patent: April 4, 1978
    Assignee: Coaltex, Inc.
    Inventors: James Conley Justice, Frank A. Delli-Gatti, Jr.
  • Patent number: 4074778
    Abstract: A square hole drill having a cutterhead configuration whose outline is in the form of a Reuleaux triangle and which also has a planetary gear drive. Two counter revolving motions are present in the drill at the same time. One is the pure rotary motion of the drill's cutterhead about its own shaft. The other is the circular motion of the cutterhead as a unit about a center line due to its eccentric mounting and drive. To achieve the opposite rotation of the unit as a whole compared to the rotation of the cutterhead about its own axis, a combined meshing planet gear and ring gear are used. The planet gear is directly connected to the cutterhead by a shaft rigidly attached to the gear's front side. At the rear side of the planet gear is the eccentrically mounted drive shaft. Surrounding the external teeth of the planet gear is a larger stationary ring gear with internal teeth to continuously engage the planet gear's teeth.
    Type: Grant
    Filed: July 14, 1976
    Date of Patent: February 21, 1978
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Roger J. Morrell, Jerome A. Gunn, Gerald D. Gore
  • Patent number: 4071100
    Abstract: In a method of making holes of selective external configuration in a rock or earth formation, two or more rotatable drills provided with drill crowns are driven into the ground. The drill crowns are so arranged that they will touch each other or are radially spaced a small distance from each other and are substantially on the same level. The drill crowns are simultaneously axially displaced while they are rotated each about its own axis only. The drill crowns sit on drill rods provided with guide means such as tubes which are driven into the ground substantially simultaneously as the drill crowns. The guide means may be connected together to form a single common guide structure. When drilling two or more holes situated adjacent one or more previously drilled holes, a guide means having spacer means is inserted into a previously drilled hole, said spacer means guiding the drill for the further holes relative to the previously drilled hole by engagement with the residual walls of the drilled hole.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: January 31, 1978
    Inventor: Gustaf Hakan Oscar Wibom
  • Patent number: 4059163
    Abstract: A drilling apparatus comprises a support structure adapted to be moved on rails to position a drilling assembly mounted thereon adjacent to a selected drilling site. The drilling assembly includes a carriage movably mounted on the support structure for longitudinal movements thereon and a shroud secured on the carriage and having an auger rotatably mounted therein. A cutting edge, having a square configuration, is disposed adjacent to a forward end of the auger and at least one double-acting hydraulic cylinder is interconnected between the support structure and the carriage to aid in pushing the auger and cutting edge through material to form an opening having a square cross section. Upon full extension of the auger and cutting edge, a second drilling assembly may be attached rearwardly on the first-mentioned drilling assembly to increase the overall penetration capabilities of the drilling apparatus.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: November 22, 1977
    Assignee: Caterpillar Tractor Co.
    Inventor: Robert N. Stedman
  • Patent number: 4036529
    Abstract: In an auger mining system which forms an opening in the earth comprising a pair of axially aligned cylindrical holes and wherein the opening has a bottom, the system has a pair of side-by-side conveyors. Each auger conveyor has a shaft and a flight around the shaft which shafts are journaled through bearings at each end to a spacing member and where the spacing members are rigidly tied to each other by a longitudinal member having an underside. A supporting apparatus including a skid is attached to the auger pair and extending to the bottom of the opening. The skid may be attached either to the underside of the longitudinal member or to each of the bearings. If the skids are attached to the bearings, then skids which are on adjacent bearings of mating auger pairs are arcuately staggered to permit side-by-side positioning of the skids.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: July 19, 1977
    Assignee: Continental Oil Company
    Inventors: Arthur L. Hawthorne, David R. Hazen
  • Patent number: 4035024
    Abstract: A hard rock trench cutting machine includes a main body assembly, a cutter wheel assembly, and a longitudinal thrust assembly. The main body assembly includes two longitudinally extending cantilever support booms each having a forward portion and a rearward portion. The rearward portions of the support booms are connected to four side wall support feet which move laterally relative to the support booms between a retracted position and an extended position. The cutter wheel assembly includes a cutter wheel frame slidably disposed on the forward portion of the support booms. A cutter wheel drum carrying a plurality of roller cutters is rotatably carried by the cutter wheel frame for rotation about an axis. The longitudinal thrust assembly extends between the main body assembly and the cutter wheel assembly for pushing the roller cutters against the trench end face.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: July 12, 1977
    Assignee: Jarva, Inc.
    Inventor: Trevor Fink
  • Patent number: 4025119
    Abstract: A method of strip mining in which a plurality of vertical shafts of square cross section are formed closely adjacent to one another with each shaft extending through overburden and a layer of valuable material such as coal. As spoil is removed in forming one shaft it is conveyed to a previously formed shaft and deposited therein. The apparatus includes a casing of square cross section, a cylindrical auger casing within the square casing, an auger rotatable in the auger casing and a square cutter at the lower end of the square casing. The latter is slidably mounted on a vertical track and is power driven vertically to force the cutter into the earth formation being worked. The auger is rotated under power to cut into the earth formation and remove spoil and coal therefrom. The upper end portions of both casings are formed with two sets of aligned discharge ports. A movable closure is provided for each set and a rake for each set.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: May 24, 1977
    Inventor: James P. Watts
  • Patent number: 4015674
    Abstract: Apparatus for unitizing a pair of side-by-side augers when each auger includes a shaft, a mateable rotational coupling on each end of the shaft, and flightings along the shaft, the unitizing apparatus includes bearings which are journaled on each end of the shaft and spacers pivotally attached between each of the bearings on the same end of the shaft in order to align the axis of the shafts substantially parallel with each other. A longitudinal support member is rigidly secured beween the spacers and between each of the flightings. A joining clevis is attached to the spacers so that they face in a manner to mate for interconnection with subsequent or preceding unitized assemblies.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: April 5, 1977
    Assignee: Consolidation Coal Company
    Inventors: Arthur L. Hawthorne, David R. Hazen
  • Patent number: 3983949
    Abstract: Auger apparatus, such as a coal mining machine, adapted to utilize one or more augers each formed of a string of auger sections, and comprising means for transferring auger sections into the string in the proper axial, transverse and rotational position for coupling into the string. The disclosed machine comprises hoist apparatus for hoisting one or more auger sections to lift them from a storage rack at a side of the machine and place each in an auger string in the machine or to remove each from the auger string and place it in the storage rack. The hoist apparatus comprises rails extending transversely of and above the augers in the machine, a bridge that travels on the rails, a trolley that travels transversely of and on the bridge, and a lift member on the trolley movable in an upright path fixed relative to the trolley.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: October 5, 1976
    Assignee: The Salem Tool Company
    Inventor: John M. Pozniko
  • Patent number: 3965995
    Abstract: A cutter wheel is mounted at the lower end of the machine for rotation about a horizontal tubular support. Cuttings are picked up by buckets on the cutter wheel and are directed into the tubular support to be received by an endless bucket conveyor which carries them upwardly to a discharge station. As the machine is advanced the cutter wheel is rotated to make a first cut in the shape of the leading portion of the cutter wheel. The cutter wheel is then retracted out from the cut and is rotated about the axis of the hole. This repositions the cutter wheel so that when it is advanced again it will make a second cut which crosses the first. This procedure is repeated until the desired cross-sectional configuration (e.g. circular) of the hole is obtained.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: June 29, 1976
    Assignee: The Robbins Company
    Inventor: David B. Sugden
  • Patent number: 3958832
    Abstract: A tool body defines an axis of rotation for the tool and has a periphery surrounding said axis. A plurality of cutter bits are carried by said body and protrude substantially radially from said periphery and have free ends. Said cutter bits are arranged in a plurality of groups which are spaced in the direction of said axis. The free ends of the cutter bits of each of said groups define a circle. The circles defined by the free ends of the cutter bits of said groups increase in diameter in one direction along said axis.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: May 25, 1976
    Assignee: Vereinigte Osterreichische Eisen- und Stahlwerke-Alpine Montan Aktiengesellschaft
    Inventors: Siegfried Sigott, Hubert Schwelberger
  • Patent number: 3957305
    Abstract: The invention is directed to a method of in situ extraction of a constituent of a rock formation, e.g., copper deposits or particular petroleum deposits as found in oil shale, and to a method of preparing the rock formation for in situ extraction of the rock constituent. Various embodiments of a side excavating machine are also disclosed for preparing the rock for in-situ extraction of a constituent therefrom. The excavating machine breaks the rock in-situ in a manner to form a narrow, horizontal flow-directing chamber in the rock-filled with fluid-permeable broken rock.
    Type: Grant
    Filed: February 11, 1974
    Date of Patent: May 18, 1976
    Assignee: Rapidex, Inc.
    Inventor: Carl R. Peterson