With Above-ground Means To Impact An Earth-penetrating Means Patents (Class 175/135)
  • Patent number: 8915314
    Abstract: A down-the-hole drill hammer is provided that includes a housing, a piston mounted within the housing, a drill bit mounted below the housing, and a drive coupling operatively engaged with the housing and drill bit. The drive coupling can be configured with a plurality of lugs circumferentially disposed about the drill bit and coupled with the casing for providing rotation thereof. Alternatively, the drive coupling can be configured with segmented lugs configured to circumscribe the drill bit, or as a cylindrical chuck formed out of arch-shaped chuck segments which radially assemble onto the shank of the drill bit.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 23, 2014
    Assignee: Center Rock Inc.
    Inventor: Leland H. Lyon
  • Patent number: 8800690
    Abstract: A down-the-hole drill hammer is provided that includes a housing, a solid core piston mounted within the housing, a seal located between the solid core piston and the housing, and a backhead configured to exhaust working fluid volumes about a proximal end of the DHD hammer. The backhead includes a check valve assembly having a plug seal that can be moved to a closed seal position by gravity. A DHD hammer having a segmented chuck assembly is also provided. The segmented chuck assembly includes a plurality of chuck segments forming a cylindrical chuck assembly.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: August 12, 2014
    Assignee: Center Rock Inc.
    Inventors: Leland H. Lyon, Warren Thomas Lay
  • Patent number: 8622152
    Abstract: A down-the-hole drill hammer having a housing, a backhead and a tubular sliding check valve assembly that includes a distal end, a threaded male proximal end, a supply inlet and an exhaust port. The exhaust port communicates between an interior of the backhead and an exterior of the backhead. The tubular sliding check valve assembly includes a distributor, a sliding valve, and a biasing member. The distributor has a central opening extending through the distributor, an aperture extending through the distributor, and an exhaust gallery. The sliding valve is slidable along the central opening. The biasing member biases the sliding valve to a closed position.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: January 7, 2014
    Assignee: Center Rock Inc.
    Inventors: Leland H. Lyon, Warren Thomas Lay
  • Publication number: 20130048382
    Abstract: An all-electric powered mobile jumbo drill machine configured to use provided AC electric power and on board battery provided electric power and operated in a mining environment.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventor: Stephen A. Rudinec
  • Patent number: 8342263
    Abstract: A mobile drill rig has a drill mast, a carriage mounted to the drill mast for vertical movement, and a vibratory drill head having a sine generator and a rotation mechanism for imparting vibration and rotation to a drill rod string. An elastomeric torsion coupler couples the rotation mechanism to the sine generator to transmit rotational force to the drill rod string while isolating vibrations of the sine generator from the rotation mechanism. Another coupler connects the drill head to the carriage in a manner that allows floating vertical movement of the drill head relative to the carriage while isolating vibrations of the sine generator from the carriage. Elastomeric bumpers limit the vertical movement of the drill head relative to the carriage. Elastomeric spacers located between the rotation mechanism and the sine generator handle the vertical loading and maintain the proper spacing between the sine generator and the rotation mechanism.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: January 1, 2013
    Assignee: Kejr, Inc.
    Inventors: Brent Kejr, Ryan Kejr
  • Patent number: 8336643
    Abstract: A vibratory unit interposed between a planetary drive and earth-penetrating device, e.g., an auger, is powered by the hydraulic system of a tractor, skid loader or the like. The unit includes a housing having a base plate with a slidable striker plate mounted therein. A Kelly bar displaces the planetary drive from the auger and through the housing. A rotatable shaft with weights eccentrically mounted thereon produces vibratory forces and urges the striker plate into contact with the base plate to provide hammer-like forces on the auger.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: December 25, 2012
    Inventor: Ronald Harleman
  • Publication number: 20120061144
    Abstract: A drill rig (10) comprises a tower (12) and a drill head (14) that is able to travel linearly up and down the tower (12). The drill head (14) provides torque to a drill string (16) attached to the drill head (14) ad thus to a drill bit (18) coupled to a distal end of the drill string (16). The drill head (14) is traversed along the tower (12) by a plurality of rams (22a, 22b) and (22c) (hereinafter referred to in general as “rams 22”). The rams (22) provided hold back and pull down for the drill bit (18) via the drill head (14). The rams (22) are selectively operable to enable the hold back and pull down applied to the drill bit to be selectively varied. Thus for example a first of the rams (22a) is selected to operate when drilling to a first depth, then the rams (22b) and (22c) are selected to operate when drilling to a second greater depth; and finally all three rams (22a, 22b) and (22c) are selected to operate when drilling to a third greater depth.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 15, 2012
    Applicant: STRANGE INVESTMENTS (WA) PTY LTD
    Inventor: Warren Strange
  • Patent number: 7921940
    Abstract: A swing-out apparatus for a drill rig, typically for drilling water wells. It includes a sled which is formed to be driven vertically on a drill mast of a vehicle carrying the sled, a casing hammer, and a hinge securing the casing hammer on the sled. To provide for displacement of the casing hammer relative to the sled, a drive is provided for swinging the casing hammer on the hinge from a deployed position to an inactive position. The drive comprises a motor connected for driving one relative to another.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 12, 2011
    Inventors: Vaughn Anderson, Ken Anderson
  • Publication number: 20100051348
    Abstract: A rock drilling machine with a first control means (21, 22) within a second piston (6) and acting on a first piston (13) such that it counteracts displacement of the relative positions of a first and a second control device at the moment of contact of the second piston onto the drill rod or onto a part (9) connected to this. Furthermore, a rock drill rig comprising such a rock drilling machine and a method for counteracting the said displacement. Significant improvements in reproducibility for impact mechanism stability over long manufacturing series are achieved through the invention. In the same way, the lifetime of rock drilling devices manufactured according to the invention is extended through the impact mechanism acting in a more stable manner despite wear of component parts. It is furthermore possible to dimension for higher rates of impact without risking the impact mechanism stability.
    Type: Application
    Filed: January 10, 2008
    Publication date: March 4, 2010
    Inventor: Kurt Andersson
  • Patent number: 7556107
    Abstract: The invention relates to a construction machine, in particular a drilling and/or pile driving device, for foundation construction comprising a chassis and a leader arranged on the chassis for the longitudinally displaceable guidance of a drive head. Provision is made for the leader to be pivotable on the chassis by means of a pivot drive about a pivot axis that extends at least approximately parallel to the longitudinal axis of the leader. In accordance with the invention at least one locking element is provided which can be displaced between a first position, in which it fixes the leader around the pivot axis in a rotationally fixed manner on the chassis, and a second position, in which the leader is released. In addition, according to the invention a setting device is provided for the remote-controlled displacement of the locking element.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: July 7, 2009
    Assignee: Bauer Maschinen GmbH
    Inventor: Leonhard Weixler
  • Publication number: 20090107727
    Abstract: Slacking off device (24) for use on a drilling device (2) for rock drilling. The drilling device (2) comprises a rock drill (4) to which a drill string (10) is adapted to be jointed by means of a thread joint. The drill string (10) comprises an arbitrary number of drill rods (12, 14, 16) which are adapted to be jointed together by means of thread joints. The drilling device (2) comprises a driving device for forward and back rotation of the drill string (10). The slacking off device (24) comprises a clamping device (25) arranged to clamp up the drill string (10) and a separate striking device (33) arranged to strike with an angle towards the longitudinal direction of the drill string (10) of principally 75°-105° on a first (32) of any of said thread joints under back rotation so that an impressed torque on the drill string ((10) is obtained in a thread slacking rotation direction to provide slacking of the first tread joint (32).
    Type: Application
    Filed: November 7, 2006
    Publication date: April 30, 2009
    Inventor: Lars Persson
  • Patent number: 7503409
    Abstract: In an earth drilling rig in which an air compressor and one or more hydraulic pumps are driven by the same engine, the intake throttle of the compressor is controlled by an electronic controller having a proportional integral derivative control. The controller minimizes unloading of the compressor, allowing the engine to operate more efficiently, the hydraulic system to provide more consistent power to drilling functions and the volume and pressure of compressed air to be optimized for the drilling conditions encountered. The electronic controller also operates a blowdown valve at the discharge side of an air receiver, and effects various overrides of the control system, for example when air discharge temperature approaches a critical level, or when an overpressure condition is detected.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: March 17, 2009
    Assignee: Schramm, Inc.
    Inventor: Brian David Brookover
  • Patent number: 7404455
    Abstract: An apparatus is used with an impact hammer penetration assemble such as standard penetration test (SPT) in geotechnical engineering. The impact hammer penetration assembly comprises a penetration sample, a series of rods coupled together and an impact hammer apparatus. The drop of the hammer from a constant height hits the coupled rods and sampler in series and forces the sampler deeper into the ground. The apparatus includes a tip depth transducer and sampler to output a first electrical signal that is a function of the sampler tip position. A shock force transducer communicates the axial shock force in the rod to output a second electrical signal that is a function of the rod shock force and hammer blows. A shock penetration transducer communicates the movement of the coupled rods and sampler to output a third electrical signal that is a function of the sampler penetration due to the hammer blows. A micro-process controller monitors and processes the first, second and third signals in real time.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: July 29, 2008
    Assignee: The University of Hong Kong
    Inventors: Zhong Qi Yue, Chack Fan Lee, Peter Kai Kwong Lee, Leslie George Tham
  • Patent number: 7249629
    Abstract: A mobile vehicle for inserting jointed pipe into a well, having a derrick and hydraulic rams to raise and lower same, adapted to conduct additional operations which will allow a well to be completed by this vehicle alone. Three winches are provided, a first to raise and lower power tongs to manoeuvre and thread jointed pipe, a second situate on the bed of the vehicle to raise and lower jointed tubing, and a third likewise mounted on the bed of the vehicle on which a conductive wireline is wound, for raising and lowering logging and swabbing devices in the well. Levelling jacks are provided at four corners of the vehicle to permit levelling of the vehicle and alignment of jointed pipe with the borehole of the well. Each of the rams, power tongs, levelling jacks, first, second, and third winches are hydraulically powered, preferably by a single pump, as each of the aforementioned devices are not operated at the same time but sequentially.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 31, 2007
    Assignee: Big Guns Perforating and Logging Inc.
    Inventors: Brian Cunningham, Dave Johanson, Duncan McPhedran, Bill Darling, Barry Goss, Ilya Mayzus, Gary Eirich, Rudy Slaney
  • Patent number: 7237625
    Abstract: A driving device for installing a pipe or casing, without the use of hydraulic or pneumatic means, by capturing the rotational motion of the drill string. The driving device is placed at the top end of the pipe being (42) installed and the drill string (2) passes through the center of the device. The drill string freely rotates, advances or retracts within the driving device, until the driving device is attached (4) to the drill string when required. When the driving device is attached to the drill string, the rotational force of the drill string and any downward force applied to the drill string are captured, and used to install the pipe. The driving device uses the rotation of the drill string to impact a blow to the pipe, driving the pipe downward. The driving device uses any downward force applied to the drill string to maintain downward pressure on the pipe.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: July 3, 2007
    Inventors: Ronald G. Minshull, Brian Richard Minshull
  • Patent number: 7040417
    Abstract: The present invention discloses, in certain aspects, systems and methods for producing cyclical impacts and, in certain aspects for moving a drilling apparatus for drilling a borehole in a formation, the system in certain embodiments including a housing with a longitudinal axis and a movable member movably disposed therein and movable within the housing transversely to the longitudinal axis of the housing and positioned within the housing with a first space on a first side thereof and a second space on a second side thereof, the movable member substantially fluidly isolating the two spaces and movable to compress gas in one of the first space and the second space while decompressing gas in the other space so that a charge of compressed gas exits from the housing to move an impact member; e.g. for impacting a pile to be driven into the earth or for impacting a drill apparatus for drilling a wellbore, the movable member movable continuously to provide a series of impacts.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 9, 2006
    Assignee: CCT Technologies, L.L.C.
    Inventors: Paul B. Campbell, James E. Coffman
  • Patent number: 7013996
    Abstract: An impact device for a rock drill. The rock drill includes a tool and a mechanism for delivering a stress pulse to the tool. That mechanism includes an impact element supported to a frame of the drill, and a mechanism for subjecting the impact element to stress and thereafter releasing the impact element suddenly from the stress, whereupon stored stress energy in the impact element is discharged in the form of a stress pulse directed at the tool.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: March 21, 2006
    Assignee: Sandvik Tamrock Oy
    Inventors: Markku Keskiniva, Jorma Mäki, Erkki Ahola, Esa Rantala
  • Patent number: 6908262
    Abstract: A system for driving a large diameter caisson into the ground, comprising a crane assembly, a plurality of vibratory devices, a clamp assembly, a suspension assembly, and a timing system. Each vibratory device generates a vibratory force. The clamp assembly rigidly secures each of the vibratory devices to one of a plurality of predetermined angularly spaced locations about the caisson. The suspension assembly connects the vibratory devices to the crane assembly such that transmission of vibratory forces from the vibratory devices to the crane assembly is inhibited. The timing system operatively connects the plurality of vibratory devices to synchronize the vibratory forces generated thereby.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: June 21, 2005
    Assignee: American Piledriving Equipment, Inc.
    Inventor: John L. White
  • Patent number: 6874540
    Abstract: A pulsation dampener apparatus and method for dampening pulses within a fluid flow line during well drilling operations. The pulsation dampener apparatus comprises a cylindrical body having an annular chamber, a piston slidably disposed within the annular chamber, a gas column within the annular chamber and a means of communicating pulses from the fluid flow line to the piston. The piston is operated against the gas column to dampen the pulses within the fluid flow line.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: April 5, 2005
    Inventor: Arley Gene Lee
  • Publication number: 20040226752
    Abstract: An impact device for a rock drill or the like, comprising means for delivering a stroke, or a stress pulse, at a tool connected to the impact device. The means for delivering a stress pulse comprise an impact element (2) supported to a frame (1a) of the impact device, and means for subjecting the impact element to stress and correspondingly for releasing the impact element (2) suddenly from stress, whereupon the stress energy is discharged in the form of a stress pulse directed at the tool (3) that is directly or indirectly connected to the impact element.
    Type: Application
    Filed: January 2, 2004
    Publication date: November 18, 2004
    Applicant: Sandvik Tamrock Oy
    Inventors: Markku Keskiniva, Jorma Maki, Erkki Ahola, Esa Rantala
  • Patent number: 6732816
    Abstract: The present invention is an improved method of installing a flowline below the surface. The method includes the steps of establishing first and second sight relief holes along a linear path, positioning a directional drilling machine on the surface, boring a first portion of a pilot hole from the surface to the first sight relief hole, determining the elevation of the boring tool and adjusting the boring tool to the desired depth, boring a second portion of the pilot hole to the second relief hole, and determining the elevation of the boring tool and adjusting the tool to the desired depth. In another aspect of the invention, a method for directionally boring a flowline is provided.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 11, 2004
    Assignee: Lattice Intellectual Property Limited
    Inventor: Ted R. Dimitroff
  • Patent number: 6672805
    Abstract: A system for driving a large diameter caisson into the ground, comprising a crane assembly, a plurality of vibratory devices, a clamp assembly, a suspension assembly, and a timing system. Each vibratory device generates a vibratory force. The clamp assembly rigidly secures each of the vibratory devices to one of a plurality of predetermined angularly spaced locations about the caisson. The suspension assembly connects the vibratory devices to the crane assembly such that transmission of vibratory forces from the vibratory devices to the crane assembly is inhibited. The timing system operatively connects the plurality of vibratory devices to synchronize the vibratory forces generated thereby.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: January 6, 2004
    Assignee: American Piledriving Equipment, Inc.
    Inventor: John L. White
  • Patent number: 6626248
    Abstract: A method for driving a drive pipe into a subsea formation, the method being comprised of the following steps: suspending the drive pipe from a drill string; moving at least one mass in a direction having an upward component and within the drive pipe; accelerating at least one mass relative to the drive pipe, wherein the at least one mass is accelerated within the drive pipe; transferring energy from the accelerated at least one mass to the drive pipe; isolating the drill string from energy from the accelerated at least one mass; and removing a core of formation from within the drive pipe after the transferring.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: September 30, 2003
    Assignee: Smith International, Inc.
    Inventors: Billy J. Roberts, Arley G. Lee
  • Publication number: 20030136586
    Abstract: An apparatus having a housing (5) that shields a front of a percussion drive (1) against the environment, and into which a drive driven tool (3) projects. An exchangeable outer seal (10) is disposed at the housing opening (6c) for the tool (3), surrounds the tool transversely to its longitudinal axis (3a) with spacing, and is moveable in this transverse direction. An inner seal (11) is disposed behind the outer seal (10), and rests elastically against the tool (3) outside of its tool guide (2). The inner seal (11) is exchangeably secured to an elastic extension (12) of the tool guide (2) that surrounds the percussive tool (3) in the region of the inner seal (11) with a spacing larger than the largest transverse displacement of the tool (3). The extension (12) is an independent, elastic support that forms a detachable connection with the tool guide (2) at one end.
    Type: Application
    Filed: January 7, 2003
    Publication date: July 24, 2003
    Inventors: Hans-Jurgen Schneider, Thomas Deimel, Christian Dorsch, Markus Mellwig, Torsten Ahr
  • Patent number: 6557652
    Abstract: Two working pistons (AK1, AK2) strike on the anvil (10) of a drill device or a rock breaking device. One working piston (AK1) is a solid piston, while the other (AK2) is an annular piston. Both working pistons can work at the same or substantially the same rate. In general, the percussion rate acting on the anvil (10) can be doubled with two working pistons. The working pistons can be controlled in common or independent from each other. In a synchronous mode with equal phase, the impact energy is multiplied; in an asynchronous mode or a mode with opposite phases, the percussion rate is increased.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: May 6, 2003
    Inventor: Guenter Klemm
  • Patent number: 6536541
    Abstract: Boring unit for pile foundations presenting a tracked vehicle facing the mouth of a hole, a mast (5) which is supported by the tracked vehicle, a rotary table (6) which is slidingly mounted along the mast (5), and at least one excavation element (7) which is connected to the table (6) and which presents a boring tool (8) at its own lower end. The boring unit may also include a handling device (11) which provides for moving the excavation element (7) and for moving further auxiliary excavation elements (19, 20) and which is also provided with a head (12) mounted on a top end of the mast (5) that is equipped with a hoist (13) and a central cable (14) which can be alternatively connected to the excavation element (7) via a drive unit (40) which is suitable for co-operating with the hoist (13) in order to rapidly move the auxiliary excavation elements.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: March 25, 2003
    Assignee: Soilmec S.p.A.
    Inventor: Marco Pedrelli
  • Publication number: 20030034079
    Abstract: A pulsation dampener apparatus and method for dampening pulses within a fluid flow line during well drilling operations. The pulsation dampener apparatus comprises a cylindrical body having an annular chamber, a piston slidably disposed within the annular chamber, a gas column within the annular chamber and a means of communicating pulses from the fluid flow line to the piston. The piston is operated against the gas column to dampen the pulses within the fluid flow line.
    Type: Application
    Filed: June 25, 2002
    Publication date: February 20, 2003
    Inventor: Arley Gene Lee
  • Publication number: 20030010536
    Abstract: The present invention relates to post hole diggers. In particular, the present invention describes a post hole digger that constructs uniform diameter holes. The post hole digger of the present invention is comprised of a pair of handles, digging scoops and a hinge bracket. The hinge bracket translates the movement of the handles into movement of the scoops. The hinge bracket restricts the movement of the handles as digging occurs, allowing for the construction of a relatively straight-sided posthole, essentially removes the tapering of a hole as the hole becomes deeper.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventor: David Carl Swartz
  • Patent number: 6386294
    Abstract: A hole making system for efficiently cutting a hole into a ground surface and for allowing effective removal of the plug. The inventive device includes a cutter assembly, a tamper assembly slidably positioned within the cutter assembly, and a hammer assembly slidably positioned about the tamper assembly for driving the cutter assembly into a ground surface. The tamper assembly includes a first depth indicator and a second depth indicator for indicating to the user the approximate depth of the hole being created. An alignment level is preferably positioned within a handle assembly of the tamper assembly for indicating to the operator the relative vertical alignment of the cutter assembly.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: May 14, 2002
    Inventor: Warren R. Best
  • Patent number: 6371222
    Abstract: A hammer device has a machine housing (1) with a hammer piston (2) movable to-and-fro. The to-and-fro movement of the hammer piston is controlled by a valve body (6) movable to-and-fro in the machine housing. The valve body, via a channel (7), alternatively connects a drive surface (5) on the hammer piston to a pressure source (8) and to low pressure (9). In order to expedite the actuation of the hammer piston at its rear dead center, the machine housing has a room (10) which is separated from the channel (7) by the hammer piston at the same time that the valve body (6) maintains the pressure from the pressure source (8) on the rear end surface (5) of the hammer piston.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: April 16, 2002
    Assignee: Atlas Copco Rock Drills AB
    Inventors: Kurt Andersson, Jörgen Rodert
  • Publication number: 20010022240
    Abstract: A core barrel has a plurality of pneumatic downhole hammer drills disposed around the perimeter of its working end for drilling piles in the ground for use in foundations, secant piles, and the like. The core barrel includes a slurry port and an air port at its top end for admitting a drilling slurry and pressurized air, which is used in driving the hammer drills and flushing cuttings from an annular kerf during drilling. A plurality of generally parallel plates form the top of the core barrel and define an air channel and a slurry channel for delivering air and slurry to the core barrel wall, where they flow freely or via conduits toward the hammer drills at the working end of the core barrel. The hammer-type core barrel is used to construct piles by first drilling an annular kerf in the ground. Circulating drilling fluid cools the working end of the hammer drills elements and washes cuttings from the kerf during drilling.
    Type: Application
    Filed: February 19, 2001
    Publication date: September 20, 2001
    Inventor: August H. Beck
  • Patent number: 6286613
    Abstract: A point-contact impact method used in the Standard Penetration Test (SPT) is disclosed. The method aims firstly to have the impact between the drop hammer and the anvil in the form of point contact and secondly to center the impact contact on the anvil face, such that the efficiency and the consistency of the energy transmission in the SPT greatly increase. With such a method, the ground condition of a specific site investigated by the SPT is able to be better determined. A device of the present method used in the Standard Penetration Test is a specially shaped anvil mounted on top of a rod, and the drop hammer is movably in contact with the anvil. The contact area of the anvil struck by the hammer is then limited and concentrated at the center. The impact between the hammer and the anvil is thus focused at or very near the center of the anvil, which reduces the energy loss during energy transfer from the hammer to the anvil.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: September 11, 2001
    Inventors: Jiin-Song Tsai, Chin-Chih Chen, Lee-Der Jou, Ke-Lon Chen
  • Patent number: 6234719
    Abstract: A method in or relating to piling of e.g. tubular bases which are placed and, possibly, casted within a hole drilled out in earth mass in ground or the like is described. One uses a generally known drilling rig, in which a bit is assigned a drilling hammer, and drills a hold having a depth approximately corresponding to the base pipe. If there exists a need for piling, the drill string is swung aside, away from the hole, after having been pulled up, and one or, possibly, a plurality of piles is/are rammed down with a starting point at the bottom level of the bore hole. In order to drive the pile(s) down, the drilling hammer of the drilling rig is used.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: May 22, 2001
    Assignee: Njal Underhaug
    Inventor: Tom Toralv Roynestad
  • Patent number: 6202763
    Abstract: A drilling apparatus 1 having a twin-impact system can work continuously with a shank end 5 is provided with a compensation ring 10 on the rotary impact side, which has a material with hardness that is lower than that of the material of the pipe and striker 8 and/or corresponding to the adjacent end portion 11 of the shank end 5 and has a shape and/or surfaces 21, 22 to compensate for the applied forces.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: March 20, 2001
    Assignee: Deilmann-Haniel Maschinin-und Stahlbau
    Inventors: Dieter Gude, Josef Maus
  • Patent number: 6029757
    Abstract: A casing hammer assembly for a cable tool drilling apparatus and a cable tool drilling apparatus employing the casing hammer assembly. The casing hammer assembly includes a hammer housing which is positioned on a casing pipe and having a central aperture for through passage of a cable tool drilling string. An impact anvil is located in the housing, surrounding the central aperture, and a reciprocal hammer is mounted for striking the anvil. An eccentric arrangement is employed for raising the hammer for repeated striking of the anvil in order to sink the casing pipe. A hydraulic arm is utilized for laterally positioning the hammer housing in relation to the casing pipe.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: February 29, 2000
    Inventors: Vaughn J. Anderson, Kenneth W. J. Anderson
  • Patent number: 5984027
    Abstract: An engine-driven breaker which is capable of providing a breaking force equal to that of a hydraulic or pneumatic breaker even with a small engine and which is small and light and easy to handle and has a simple construction enabling it to be manufactured cheaply. The engine-driven breaker has a breaker main body and a cylinder fixed inside the breaker main body and inside the cylinder an upper air chamber of variable volume is provided between an operating piston and a hammer piston and a lower air chamber of variable volume is provided below the hammer piston.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 16, 1999
    Assignee: Maruzen Kogyo Company Ltd.
    Inventor: Tetsuya Kato
  • Patent number: 5975221
    Abstract: In a machine for horizontal or inclined percussion boring in the ground having a percussion boring string which has an oblique-face boring head at one end and an impact mechanism at the other end, the impact mechanism is mounted beside the rotary drive in order to reduce the length of the machine.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: November 2, 1999
    Assignee: Tracto-Technik Paul Schmidt Spezialmaschinen
    Inventor: Franz-Josef Puttmann
  • Patent number: 5662179
    Abstract: A device for making holes in the ground, such as for a golf course, has a tubular cutter having an open first end for insertion into the ground, and an opposite second end from which a guide extends. A percussion weight is guided for movement along the guide and exerts a hammering force on the second end of the cutter. A tubular part is connected to the end of the percussion weight that lies distal from the tubular cutter. The tubular part guides the percussion weight axially along the guide. A handle for maneuvering of the percussion weight is attached to the top of the tubular part. The cutter and associated guide on the one hand, and the percussion weight with associated tubular part carrying the handle on the other hand, can be locked together releasably against axial movement, are non-rotatable, and are also releasably locked against rotation movement, so that the cutter can be easily removed from the ground once the hole is cut.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: September 2, 1997
    Assignee: Hudiksvalls Teknik Centrum AB
    Inventor: Johan Falk
  • Patent number: 5653556
    Abstract: An apparatus for attaching a caisson to a device for inserting and/or extracting the caisson. The apparatus comprises three beams. A first beam is relatively long and is normally connected to a vibratory device such that its longitudinal axis is orthogonal to the lengthwise axis of the vibratory device. The second and third beams are relatively short and are connected to the vibratory device such their longitudinal axes are parallel to the lengthwise axis of the vibratory device. Four clamps are mounted on the beams to fix the beams onto the caisson. A flange on the first beam is widened at least a middle portion thereof to stiffen the beam and allow the beam to be securely connected to the vibratory device. The first beam may also be used with its longitudinal axis parallel to the lengthwise axis of the vibratory device.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: August 5, 1997
    Assignee: American Piledriving Equipment, Inc.
    Inventor: John L. White
  • Patent number: 5634524
    Abstract: A reverse percussion device for use with hydraulic percussive drills is provided. The reverse percussion device includes a cycling piston, valve and anvil. The piston and valve move in opposing directions between low and high pressure passages automatically until a lodged drill bit is freed, thereby facilitating removal of the drill bit from the drilled hole and eliminating alternate loosening and tightening of drill string threads. The reverse percussion device preferably includes an automatic disabling feature which causes the reverse percussion operation to cease when the bit is free to retract normally.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: June 3, 1997
    Assignee: Reedrill Corporation
    Inventor: Paul Campbell
  • Patent number: 5487432
    Abstract: A subsurface tool comprising an elongated steel shaft having a soil penetrating lower end element and having a threaded upper end, a transverse elongated handle having a pair of ends for manual gripping thereof, and a central zone, an elongated isolator between the shaft upper end and the handle, the isolator being an electrically insulating, reinforced polymeric composite having an upper end ring portion encircling and molded to the handle at its central zone, and having a lower end socket, the shaft upper end being attached to the isolator lower end socket.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: January 30, 1996
    Inventor: Jon E. Thompson
  • Patent number: 5479996
    Abstract: Rock drilling device for drilling with a drill string comprising a set of tubes (1) and a set of rods (2) arranged centrally in the set of tubes.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: January 2, 1996
    Assignee: Atlas Copco Rocktech AB
    Inventors: Christer Jonsson, Jorgen Jonasson
  • Patent number: 5435399
    Abstract: A soil sampler for taking soil samples at multiple locations around a vehicle is disclosed. The soil sampler has a probe for withdrawing soil samples from the ground. The probe is suspended on a support structure or boom assembly which can move the probe to multiple withdrawal locations around a vehicle. The soil sampler has a percussion-type vibrator to aid in inserting the probe into the ground. The vibrator assembly operates automatically off of a hydraulic line used to lower the boom assembly, such that the vibrator normally operates only when the probe is encountering significant resistance to being pressed into the ground. The support structure is raisable to allow an operator within the vehicle to collect multiple soil samples without leaving the vehicle.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: July 25, 1995
    Assignee: Concord, Inc.
    Inventors: Gary G. Peterson, Jacob N. Gust, Virgil R. Mahlum, Michael W. Smette
  • Patent number: 5413186
    Abstract: A reverse percussion device for use with hydraulic percussive drills is provided. The reverse percussion device includes a cycling piston, valve and anvil. The piston and valve move in opposing directions between low and high pressure passages automatically until a lodged drill bit is freed, thereby facilitating removal of the drill bit from the drilled hole and eliminating alternate loosening and tightening of drill string threads. The reverse percussion device preferably includes an automatic disabling feature which causes the reverse percussion operation to cease when the bit is free to retract normally.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: May 9, 1995
    Assignee: Reedrill, Inc.
    Inventor: Paul Campbell
  • Patent number: 5409072
    Abstract: A method and an arrangement for controlling the supply of air into a rock drilling machine. In the method, the air supply of an air compressor in a power unit operated by a diesel engine is adjusted so that when the percussion pressure of the percussion device of the rock drilling machine is high, the amount of air supplied by the compressor is small, and vice versa. In the arrangement, the pressure fluid pump of the hydraulic motor of the compressor is an adjustable-displacement pump, the volume flow of the pressure fluid supplied by the pump being adjusted inversely proportionally to the pressure of the supply conduit of the percussion device of the rock drilling machine.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: April 25, 1995
    Assignee: Tamrock Oy
    Inventors: Pentti Enlund, Kari Tantarimaki
  • Patent number: 5355966
    Abstract: The invention provides a drilling method for drilling a bore-hole in ground or soil, with a percussion drilling device operated directly in the bore-hole and with a rotary percussion drilling device operated from the surface of the ground or soil, both devices being received in a common support member and adapted to be simultaneously operated, and a drilling assembly for preforming this method. In order to avoid a damage of the percussion drilling device, the drilling impact forces and vibrations directed to the rotary percussion drilling device are registered, elastically dampened and absorbed prior to having an effect on the percussion drilling device.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: October 18, 1994
    Inventor: Andrea L. Mathis
  • Patent number: 5320189
    Abstract: Rock drilling device comprising a backhammer unit (10) in which a hammer piston (9) is movable to-and-fro for automatically exposing a tube string (4) to impacts in a direction away from a drill bit (8) in the tube string. The backhammer unit comprises a housing (13) and a springloaded tube part (14). The housing and the tube part form between them a first valve (16) and a second valve (17). At drilling the first valve which controls the supply of driving medium to said hammer piston is closed and the second valve which controls the flushing medium flow is open. At backwards feeding of the rock drilling machine (2) along the feed beam (1) with a force which exceeds a predetermined value the first valve is open and the second valve is closed.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: June 14, 1994
    Assignee: Atlas Copco Rocktech AB
    Inventors: Jorgen Rodert, Kurt Andersson
  • Patent number: 5289887
    Abstract: In a method of operating a ram boring machine having a rotatory-thrust drill rod an impact force is applied to the rear end of the drill rod. The boring machine includes a thrust unit and a striking tool that are combined to form a thrust/percussion aggregate.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: March 1, 1994
    Assignee: Tracto-Technik Paul Schmidt Spezialmaschinen KG
    Inventor: Franz-Josef Puttmann
  • Patent number: 5211248
    Abstract: A portable soil sampling device is provided that is easily positoned in confined and hard-to-reach locations. The device includes a mast assembly comprising a pair of upright masts mounted on a frame having a pair of wheels. By tilting the frame and mast assembly back using a provided handle, the device may be transported to a sampling location. Where low overhead locations are encountered, such as within buildings, the mast assembly may be lowered with the use of a hinged connection intermediate its ends. The device is powered by hydraulic power from a remote source through flexible hydraulic hose, so as to help reduce the size and weight of the device. A hydraulic motor on the device is used to position a hydraulic hammer over a tube for driving. A hydraulic cylinder on the device is used to pull the sample tube from the ground after it has been driven to the desired depth. The invention also involves the method steps in accomplishing the above operation.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: May 18, 1993
    Inventors: Michael A. Nosewicz, Stephen B. Turner
  • Patent number: 5125462
    Abstract: In a ram boring machine that has a striking piston reciprocating in a tubular housing and a striking tip that may be formed as a chisel and projects from the housing, connection of the striking tip to the housing by means of a bayonet joint makes installation and removal or replacement of the striking piston or a worn chisel possible in a simple manner.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: June 30, 1992
    Assignee: Paul Schmidt
    Inventor: Alfons Hesse