With Suction Pump Inlet Communicating With Bore Bottom Patents (Class 175/213)
  • Patent number: 9623497
    Abstract: A rotary cutting tool includes a cutter body, a coolant cap, and a retaining ring for removably securing the coolant cap to the cutter body. The coolant cap includes an outer surface, an inner surface and a generally cylindrical outer surface extending between the outer surface and the inner surface. The retaining ring is disposed within a retaining ring notch of the cutter body such that the outer surface of the coolant cap contacts the retaining ring when high pressure coolant is introduced into the cutter body to removably secure the coolant cap to the cutter body.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 18, 2017
    Assignee: KENNAMETAL INC.
    Inventor: Ronald Louis Dudzinsky
  • Patent number: 9512591
    Abstract: The invention relates to a cleaning device for cleaning a bottom of a borehole in the ground and also to a method for creating a bored pile in a borehole. The cleaning device has a pumping means, through which sedimented ground material in the region of the bottom of the borehole can be sucked away via a suction opening and can be discharged from the borehole via a suction line. At least one flushing nozzle is provided, through which a flushing jet can be produced, which exits the cleaning device and flushes sedimented ground material from the bottom of the borehole. A bored pile can then be produced in a thus cleaned borehole.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 6, 2016
    Assignee: BAUER Spezialtiefbau GmbH
    Inventors: Stefan Spreitzer, Ulli Wiedenmann, Helmut Hross
  • Patent number: 9440344
    Abstract: A dust collection device, that collects dust particles generated by an impact tool, has a feature that enables the attachment of the device to the impact tool, which is not provided with an attachment section for the device. The dust collection device has a tool body and an auxiliary handle, attached removably to the tool body, and is attached to an electric hammer that, in the lengthwise direction, linearly operates a tool bit mounted to the tip region of the tool body, and collects dust generated by the electric hammer. The dust collection device has: a dust collection unit that has a dust intake port at the tip; a dust collection hose, connected to the dust collection unit, for transferring dust to the downstream side; and a hose-holding unit that holds the dust collection hose. The hose-holding unit can be attached to and removed from the auxiliary handle.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: September 13, 2016
    Assignee: MAKITA CORPORATION
    Inventors: Hiroki Ikuta, Ken Yamauchi, Takamasa Hanai, Masao Miwa, Tomohiro Ukai, Shusaku Wakatsuki, Akihiro Ito
  • Patent number: 9279232
    Abstract: A hydraulic hammer may include a power cell adapted to reciprocally drive a piston along an axis. The piston may, in turn, drive a hammer tool having a first end juxtaposed against the piston for accommodating cyclic impacts by the piston. While the first end of the hammer tool may be contained within a housing, the other end may extend from the housing for impacting rock, for example. The power cell and housing are axially secured together by a plurality of tie rods and nuts secured to ends of the tie rods, and the housing may include exterior pockets for accommodating the nuts. Each nut may have a circular exterior surface, and each nut pocket may have a generally elliptical interior surface, such that the exterior surface of each nut may be configured to engage at least two spaced apart areas of a corresponding interior surface of each nut pocket.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 8, 2016
    Assignee: Caterpillar Inc.
    Inventor: Rakesh Jagdale
  • Publication number: 20150034393
    Abstract: An attachment used for digging and removing debris from a hole is connected to a flexible hose of a typical shop vacuum device, and includes a handle, a first tubular section, a second tubular section, a plurality of depth indicators, a bubble level, and a cutting head. This is a light-weight accessory that transforms the existing shop vacuum into an excavating and digging tool instantaneously. There is less energy expended and time spent digging holes.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Inventors: Heinz Otto Hutt, Gregory David Norman Janes
  • Patent number: 8944187
    Abstract: A tool for boring holes in soil includes an elongated tubular housing which has disposed through its length a bore having an upper opening coupleable to a vacuum source and a lower opening coupled to the bore of a ring-shaped bore head having circumferentially spaced apart cutting teeth protruding downwards from the bore head. A zig-zag shaped unclogger bar disposed coaxially through the bore head and rotated by a drive shaft disposed coaxially through the tubular and housing and protruding through a bearing in an upper end of the housing and driven by a rotary power source such as an electric motor fixed to the housing fragments lumps of clay or wet soil lodged in the bore of the housing, facilitating removal of soil and clay, which are severed by twisting the tool around its longitudinal axis by manipulating handle bars protruding from the upper end of the housing.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: February 3, 2015
    Assignee: Corbas Marketing, Inc.
    Inventors: Carlos J. Cordova, Sammy Vargas
  • Publication number: 20140238684
    Abstract: A fitting having a cover tube connected to one end and a pressure line in the fitting, connected to a rigid tube projecting from the fitting and through the cover tube. The method includes projecting a rigid tube in a masonry bore, and applying pressurized air to blow debris from the bore to be captured in a cover tube.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Inventor: Hadley H. Caneer
  • Publication number: 20140209390
    Abstract: Mineral particles may provide for wellbore fluids with tailorable properties and capabilities. Such wellbore fluids may be included in systems that comprise a pump in fluid communication with a wellbore via a feed pipe; and a wellbore fluid disposed in at least one selected from the group consisting of the pump, the feed pipe, the wellbore, and any combination thereof, wherein the wellbore fluid comprises a base fluid, a plurality of first mineral particles, and a plurality of second mineral particles such that the first mineral particles and the second mineral particles having a multiparticle specific gravity of about 3 to about 20.
    Type: Application
    Filed: May 21, 2013
    Publication date: July 31, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dale E. Jamison, Charles Landis, Jay Deville, Cato McDaniel
  • Publication number: 20130264067
    Abstract: An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 10, 2013
    Inventor: Danny T. Williams
  • Patent number: 8439450
    Abstract: The present disclosure relates to a tunneling apparatus including a pipe string having a distal end and a proximal end. The pipe string includes a plurality of pipe-sections connected end-to end. The pipe string also includes a cutting head coupled to a distal-most one of the pipe-sections. The pipe string defines a vacuum passage that extends through the pipe string from the proximal end to the distal end of the pipe string. A source of vacuum is in fluid communication with the vacuum passage for drawing cuttings through the vacuum passage. A blockage sensor can be used for sensing whether a precursor blockage condition exists within the vacuum passage. A source of air pressure can be used to force air distally through the pipe string to assist in moving cuttings proximally through the vacuum passage.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 14, 2013
    Assignee: Vermeer Manufacturing Company
    Inventors: Stuart Harrison, Andis Normunds Salins, Matthew Arlen Mills, Melvin Nguyen
  • Patent number: 8381841
    Abstract: A cover tube concentric about a pressure tube at the opposite end.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 26, 2013
    Inventor: Hadley H. Caneer
  • Publication number: 20120048569
    Abstract: An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Inventor: Danny T. Williams
  • Patent number: 8025111
    Abstract: An apparatus assists in preventing the accumulation of debris in a flow path during the formation of a borehole. In one embodiment, the apparatus comprises a drill head including a drive shaft for driving a drilling element to form the borehole. Preferably, the drilling element includes a passage forming a flow path for debris from the borehole. A carrier positioned adjacent the flow path is connected to at least one agitator connected to the carrier for agitating debris in the flow path. A related method pertains to manufacturing a drill head including an agitator.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: September 27, 2011
    Assignee: J.H. Fletcher & Co.
    Inventor: Kerry Hopf
  • Publication number: 20110036635
    Abstract: An improved hydro-vac excavation apparatus is presented with the blower located on a recessed portion of the mud tank, saving space and eliminating piping. The blower and silencers are oriented so that airflow through the blower and out through the silencers is in a downward direction, eliminating low spots that could trap liquid.
    Type: Application
    Filed: March 30, 2010
    Publication date: February 17, 2011
    Inventor: Robert C. Rajewski
  • Patent number: 7726417
    Abstract: The invention relates to a water collecting device (30) intended for a core drilling unit (1) that comprises a drilling machine including an electric drilling motor (6), a machine housing (3) with an output shaft (9), that can be composed of many sections, a core drill (4) connected to the machine shaft and means to supply cooling water, as required, to the cylindrical inner part of the of the core drill via the machine shaft (9). The water collecting device (30) comprises a vessel (31) with a bottom (32) and a side wall (33), the bottom (32) positioned below the core drill (4), the vessel (31) arranged to collect spent water as well as drill cuttings from the core drill (4), the vessel (31) further comprising at least a draining duct (58) for drainage of spent water as well as drill cuttings from the vessel (31). The invention also relates to the core drilling unit equipped with the water collecting device.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Husqvarna AB
    Inventor: Martin Larsson
  • Publication number: 20100000796
    Abstract: The invention relates to an earth drilling device having a rotary drive and a drilling head connected to the rotary drive via a shaft.
    Type: Application
    Filed: April 17, 2009
    Publication date: January 7, 2010
    Inventor: Alexander Boeck
  • Patent number: 7575069
    Abstract: A mobile soil sampling device is mounted on the side of a vehicle such as an ATV or UTV and includes an upstanding frame member which is vertically movable with respect to the vehicle by means of a parallel arm linkage and actuator. A vertically disposed and rotatable auger is mounted on the frame member and is moved upwardly and downwardly with respect thereto through the use of a motor and pinion gear with the pinion gear engaging a gear rack on the frame member. The auger is rotated so as to dig into the ground to the desired depth with the soil sample being conveyed upwardly into a vacuum collection chamber with the soil sample being conveyed to a vacuum chamber mounted on the vehicle. A sample collection device is mounted beneath the vacuum chamber for receiving the desired soil samples.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: August 18, 2009
    Inventor: John Pavlik
  • Patent number: 7563060
    Abstract: An improved vacuum drilling system and drill bit includes a generally hollow vacuum drill bit with one or more chip inlets arranged proximate to one or more cutting surfaces. The drill bit also includes grooves along its exterior. When the drill bit is guided by a bushing or guide hole, the grooves serve to reduce the friction therebetween. The grooves can also convey air for cooling and improved chip collection.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: July 21, 2009
    Assignee: The Boeing Company
    Inventors: Matthew G Kesterson, James A DeLand
  • Publication number: 20090057028
    Abstract: An apparatus for drawing down a fluid level in a wellbore. The apparatus comprises a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular. A method of drawing down a fluid level is also disclosed.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 5, 2009
    Inventor: Danny T. Williams
  • Patent number: 7455486
    Abstract: An extracting device (4) for removing material cut away in the operation of a motor-driven hand tool, has an extracting opening (48) and a receiving space (18) for the cut material, which communicate with one another through an extracting path, and an air current generator (42) for generating an air current (L) from the extracting opening (48) to the receiving space (18). A closure device (20) is provided between the extracting opening (48) and the receiving space (18), which at least substantially places the extracting path in a closed position and which is operated by the air current (L). The closure device (20) is arranged between the extracting opening (48) and the air current generator (42) and the closure device (20) has a closure element (22), which can be removed from a valve seat (24) by means of an underpressure created by the air current generator (42) for forming an open position of the closure device.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: November 25, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventor: Rory Britz
  • Patent number: 7451824
    Abstract: An apparatus for drawing down a fluid level in a wellbore. The apparatus comprises a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular. A method of drawing down a fluid level is also disclosed.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: November 18, 2008
    Inventor: Danny T. Williams
  • Patent number: 7419341
    Abstract: The present invention relates to a device for machining mechanical parts by means of a hollow cylindrical tool presenting a distal end with a free edge that is shaped to perform machining when said tool is rotated about its axis.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: September 2, 2008
    Assignee: Romer
    Inventor: Romain Granger
  • Patent number: 7281886
    Abstract: A suction device that is used with a power drilling tool for aspirating material removable during operation of the drilling tool, and which includes a suction head (20) displaceable relative to the drilling tool (2) in a direction opposite a drilling direction (B) of the drilling tool (2), and an aeration device (22) fixedly connected by a suction conduit with the suction head (20) for joint displacement therewith.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: October 16, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventor: Thorsten Stoerig
  • Patent number: 7222675
    Abstract: An apparatus and method for drawing down a fluid level in a wellbore which has a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: May 29, 2007
    Inventor: Danny T. Williams
  • Patent number: 7185720
    Abstract: A hole digger for digging a hole in ground. The hole digger includes a handle end for manually turning the hole digger. The hole digger includes a support section extending from the handle end. The hole digger includes a digging end extending from the support section.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: March 6, 2007
    Inventor: Thomas Menna
  • Patent number: 7163070
    Abstract: A drill head for use in drilling bores in mines and tunnels has a bit and at least one suction opening (5) for removing drillings and having a crushing profile.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: January 16, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Roland Gienau, Wolfgang Ludwig, Erich Leibhard
  • Patent number: 7073612
    Abstract: A surge device providing a vent for bleeding pressure off an air drilled well and providing connectors for surge lines in the blooie line. The surge device has a hollow, abrasion resistant, tapered chamber into which two surge lines and the blow down line enter the surge device. The device is provided with a flange at each end of the chamber for attaching the device into a blooie line with the narrow end of the tapered chamber attached to the downstream end of the blooie line and an enlarged end of the tapered chamber attached to the upsteam end of the blooie line. An abrasion resistant shield pipe penetrating the enlarged end of the tapered chamber and extending into the tapered chamber a sufficient distance to serve as a shield for the terminal ends of the surge lines and the blow down line.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: July 11, 2006
    Inventor: Ray A. Finchum
  • Patent number: 7073597
    Abstract: An apparatus and method for drawing down a fluid level in a wellbore which has a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 11, 2006
    Inventor: Danny T. Williams
  • Patent number: 7025154
    Abstract: A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 11, 2006
    Assignee: CDX Gas, LLC
    Inventor: Joseph A. Zupanick
  • Patent number: 6904982
    Abstract: A sub-sea mud pump system includes a plurality of pump units, and each pumping unit includes a plurality of pumping elements. Each pumping element includes a pressure vessel with a first and a second chamber, a separating member between the first and second chambers, a measurement device adapted to measure the volume of at least one of the first and second chambers, a hydraulic inlet control valve and a hydraulic outlet control valve coupled to the first chamber, a mud suction valve and a mud discharge valve coupled to the second chamber. The first chamber is hydraulically coupled to receive and discharge a hydraulic fluid, and the second chamber is hydraulically coupled to receive and discharge a drilling fluid. The separating member is adapted to move within its the pressure vessel in response to a pressure differential between the first and second chambers. The pump system also includes a hydraulic control unit adapted to control the plurality of pump units.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: June 14, 2005
    Assignee: Hydril Company
    Inventors: Robert A. Judge, Dat Manh Nguyen, Harold Wade, Ronald D. Brooks
  • Patent number: 6892829
    Abstract: Method and apparatus for drilling a well bore in a hydrocarbon formation using concentric drill string having an inner pipe and an outer pipe defining an annulus there between. A drilling means such as an air hammer or a rotary drill bit and driving system is provide at the lower end of the concentric drill string and drilling medium is delivered through the annulus or inner pipe for operating the drilling means to form a borehole. Drilling medium, drilling cutting and hydrocarbon are removed from the well bore by extracting the drilling medium, drilling cutting and hydrocarbon through the other of the annulus or inner pipe.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 17, 2005
    Assignee: PressSol Ltd.
    Inventor: James I. Livingstone
  • Patent number: 6854534
    Abstract: Method and apparatus for drilling a well bore in a hydrocarbon formation using concentric coiled tubing drill string having an inner coiled tubing string and an outer coiled tubing string defining an annulus therebetween. A drilling device comprising a reciprocation air hammer and a dull bit, a positive displacement motor and a reverse circulating drill bit, or a reverse circulating mud motor and a rotary drill bit, is provided at the lower end of the concentric coiled tubing drill string. Drilling medium is delivered through the annulus or inner coiled tubing string for operating the drilling device to form a borehole. Exhaust drilling medium comprising drilling medium, drilling cuttings and hydrocarbons is removed from the well bore by extraction through the other of the annulus or inner coiled tubing string.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: February 15, 2005
    Inventor: James I. Livingstone
  • Patent number: 6792735
    Abstract: Advanced masonry coring systems for coring and grouting masonry walls are disclosed in this patent. The systems include rotating machinery and a drill column in the form of a cylindrical double-piped string of pipe sections, rotating a cylindrical drill body. The drill body mounts cutting end faces having alternative means of employing carbide or diamond cutting and/or pulverizing elements. The double drill pipe weight is made workable through new aerospace composite fabrication. The double pipe permits more efficient routing of air and removal of drill cuttings. Advancement in various system components and means of placing reinforcement into walls is disclosed. Further disclosure is included of advanced means of optimizing resin grouting materials and procedures to fill the wall cavities created by the core drill, integrating the reinforcement into the walls.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: September 21, 2004
    Inventor: William Mohlenhoff
  • Publication number: 20040140129
    Abstract: A method and system of drilling straight directional and multilateral wells utilizing hydraulic frictional controlled drilling, by providing concentric casing strings to define a plurality of annuli therebetween; injecting fluid down some of the annuli; returning the fluid up at least one annulus so that the return flow creates adequate hydraulic friction within the return annulus to control the return flow within the well. The hydraulic friction should be minimized on the injection side to require less hydraulic horsepower and be maximized on the return side to create the desired subsurface friction to control the well.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 22, 2004
    Inventor: Robert Gardes
  • Patent number: 6719072
    Abstract: A suction drill unit for the installation of a drill dowel (2) into rock, concrete, masonry and similar materials has an insertion end (3) for insertion into an at least partially rotary and percussive acting hand tool drilling device, with a reduced diameter shank (7) having an open suction passageway (9) extending axially through the shank (7) towards a bit head (8) and a rearward radial communication passage (10) connected thereto for suction-tight communication with a non-rotary suction head (11), wherein the drill bit head (8) is formed with an eccentrically arranged bit head tip (12) for boring of a hole (14) having a diameter (D) greater than that of the drill bit head diameter (B).
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 13, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Hans-Werner Bongers-Ambrosius, Tim Pröls
  • Patent number: 6666286
    Abstract: There is provided a fluid circulating apparatus for a drill that requires only a small amount of coolant, as a suspension is collected and reused. The apparatus (1) for use with a drill (2) includes a suspension collecting device (3) that collects a suspension derived from the coolant mixed with chippings (S) through cutting and drilling operations, a suspension filtering device that filters off the chippings included in the suspension, thereby making the resultant coolant to be stored in a reservoir (4a), and a coolant supplying means that supplies the coolant obtained by the suspension filtering device and stored in the reservoir to the bit. The suspension collecting device includes a vacuum pump used to collect the suspension from a water-receiving pad so provided as to surround a point to be drilled by changing a pressure in the reservoir to subatmospheric pressure.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: December 23, 2003
    Assignee: Goei Co., Ltd.
    Inventor: Hideaki Yamashita
  • Publication number: 20030111266
    Abstract: A drilling system (10) for drilling holes into concrete includes a drilling tool (20) attached to a frame (22) that can be secured to a drilling surface (S) of any orientation and permits (1) manual, (2) manual-power-assisted, or (3) stand-mounted, hands-free operation of the drilling tool (20). The system (10) utilizes air pressure, vacuum, gas regulating system, or even magnetism, to secure the frame (22) of the drilling tool (20) to the surface (S) and to control the movement of a drill bit (34) with respect to the surface (S). A fluid delivery system (80) is used to facilitate certain actions of the drill bit (34) and to effectively remove debris resulting from drilling from the drilling site. Also disclosed are related methods of drilling holes into concrete that reduce noise, mess, and debris resulting from drilling.
    Type: Application
    Filed: September 25, 2002
    Publication date: June 19, 2003
    Inventor: Leon T. Roach
  • Patent number: 6533047
    Abstract: A tool for drilling and/or chiseling for use with a hand-held mechanized tool having a suction device (10) including a housing (11) surrounding the tool (1), with the tool (1) including a tubular shaft (2) and a connection member (3) located opposite a front end of the shaft (2) for connecting the shaft (2) with the housing (11) of the suction device (10) and having a diameter larger than a diameter of the shaft (2), and with the connection member (3) being formed of a core (5) surrounding the shaft (2), and an adapter (6) surrounding the connection member core (5) and having a cross-bore (7) opening into the through-channel (8) formed in the shaft (2).
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: March 18, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Werner Kleine, Hans-Werner Bongers-Ambrosius
  • Patent number: 6505691
    Abstract: The invention is a subsea pump that includes pumping elements, each pumping element including a pressure vessel with a first and a second chamber therein and a separating member disposed between the first and second chambers. The first and second chambers are hydraulically connected to receive and discharge a hydraulic fluid and a drilling fluid, respectively. The separating member moves within the pressure vessel in response to a pressure differential between the first and second chambers. A hydraulic power supply is arranged to pump the hydraulic fluid to the first chamber of each of the pumping elements. A valve assembly is hydraulically coupled to the first chambers of the plurality of pumping elements and to the hydraulic power supply. Volume measurement devices are arranged to measure volumes of each of the first chambers and the second chambers.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: January 14, 2003
    Assignee: Hydril Company
    Inventors: Robert A. Judge, Charles P. Peterman
  • Publication number: 20030000744
    Abstract: A hand-held wand is disclosed for exposing buried objects such as utility lines or the like. The wand comprises an elongated, hollow tube having upper and lower ends with first and second water supply conduits being positioned adjacent the exterior surface of the tube. The lower end of the first water supply conduit has a digging nozzle mounted thereon. The lower end of the second water supply conduit extends upwardly into the lower end of the tube to create a vacuum or suction within the lower end of the hollow tube to remove muddy water from the hole being dug. A two-way valve is connected to the upper ends of the first and second water supply lines for alternately delivering water to the water supply conduits. The intake side of the two-way valve is in fluid communication with a source of high pressure water. The upper end of the hollow tube has a mud take-off hose connected thereto which may be utilized to convey the muddy water to a location remote from the hole being dug or to a container.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Inventor: Franklin J. Chizek
  • Patent number: 6457529
    Abstract: An apparatus and method are provided for controlling hydrostatic pressure in drilling fluid in a subsea well. A main pump forces drilling fluid down the drill pipe, out of the end of the drill pipe, and upward in an annulus surrounding the pipe. A rotating drilling head is attached to a wellhead assembly at the sea floor. The drilling head has an inner body rotatably carried in an outer body landed in a bore of a housing. An energizable gripper in a bore of the inner body grips an outer surface of the drill pipe. The drilling head diverts the drilling fluid into a lateral passage in the sidewall of the housing. An auxiliary pump forces seawater through a venturi into a conduit, creating a lower pressure to draw drilling fluid into the conduit to be carried back to the surface vessel. Pressure and flow rate measurements are sent to a control system that modulates the speed of each pump to control hydrostatic pressure.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 1, 2002
    Assignee: ABB Vetco Gray Inc.
    Inventors: Ian Douglas Calder, Ready J. Johnson, John Nelson
  • Publication number: 20020104687
    Abstract: A suction drill unit for the installation of a drill dowel (2) into rock, concrete, masonry and similar materials has an insertion end (3) for insertion into an at least partially rotary and percussive acting hand tool drilling device, with a reduced diameter shank (7) having an open suction passageway (9) axially through the shank (7) towards a bit head (8) and a rearward radial communication passage (10) connected thereto for suction-tight communication with a non-rotary suction head (11), wherein the drill bit head (8) is formed with an eccentrically arranged bit head tip (12) for boring of a hole (14) having a diameter (D) greater than that of the drill bit head diameter (B).
    Type: Application
    Filed: February 6, 2002
    Publication date: August 8, 2002
    Inventors: Hans-Werner Bongers-Ambrosius, Tim Prols
  • Patent number: 6405812
    Abstract: A drilling tool for drilling bore holes into the ground and for removing the drilled material using an air-lifting process. The drilling tool has a drilling head equipped at its lower surface with curing elements, whose upper surface is connected to hollow drilling rods having an inner conveying channel and from whose lower surface boring material mixed with a rinsing liquid is removed via the conveying channel. At the lower surface of the drilling tool head, inside a radial channel connected to the conveying channel, a cross-flow of the rinsing liquid, flowing radially inwards and having a high flow velocity, is produced for the purpose of carrying along the boring material.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 18, 2002
    Assignee: Wirth Maschinen-und Bohrgerate-Fabrik GmbH
    Inventor: Fritz Tibussek
  • Publication number: 20020066599
    Abstract: The invention concerns a reverse circulation rock drill having a backhead attached to a piston and cylinder assembly between the backhead and a drill bit assembly and around a sample tube with the outer walls of the sample tube and piston profiled to provide air paths for power and exhaust strokes of the piston, a O-ring seal being provided in the backhead as a check valve.
    Type: Application
    Filed: December 5, 2000
    Publication date: June 6, 2002
    Inventor: Bernard Lionel Gien
  • Publication number: 20020027023
    Abstract: A cooling and flushing arrangement (1) for a tool (10), has a coolant and flushing agent (2) in a closed storage tank (3), which is connected to a suction pump (4) and has a closed flushing circulation system (6) running from the storage tank (3) through a filter (8), connected via a pressure pump (7) and through a collecting member (11) associated with the tool (10), with a suction line (12) running back to the storage tank (3). A reservoir circulation system (13) for the coolant and flushing agent (2), contains a reservoir (14) connected to the storage tank (3) via a float valve (15) situated in the storage tank (3), and is connected at another location in the flushing circulation system (6) to the reservoir (14) via a valve (16).
    Type: Application
    Filed: August 29, 2001
    Publication date: March 7, 2002
    Inventor: Rory Britz
  • Publication number: 20010052429
    Abstract: A hand-held tool including a housing, a rod-shaped stop secured on the housing and a dust collector (3) having a dust screen (4) for at least partially circumferentially surrounding a working tool (2) insertable into tool, a deflection-resistant, axially resiliently displaceable at a radial distance from a tool axis (A), suction conduit (6), and guide and connection elements (7) for securing the dust collector (3) on the depth stop (9).
    Type: Application
    Filed: May 2, 2001
    Publication date: December 20, 2001
    Inventors: Jens Frenzel, Helmut Nussrainer
  • Patent number: 6325159
    Abstract: A system for drilling a subsea well from a rig through a subsea wellhead below the rig includes a wellhead stack which is mounted on the subsea wellhead. The wellhead stack includes at least a subsea blowout preventer stack and a subsea diverter. A drill string extends from the rig through the wellhead stack into the well to conduct drilling fluid from the rig to a drill bit in the well. A riser which has one end coupled to the wellhead stack and another end coupled to the rig internally receives the drill string such that a riser annulus is defined between the drill string and the riser. A well annulus extends from the bottom of the well to the subsea diverter to conduct fluid away from the drill bit. A pump has a suction side in communication with the well annulus and a discharge side in communication with the rig and is operable to maintain a selected pressure gradient in the well annulus.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: December 4, 2001
    Assignee: Hydril Company
    Inventors: Charles P. Peterman, Riley G. Goldsmith, Keith C. Mott, John Mark Danna, Kenneth L. Pelata, Kenneth W. Colvin
  • Publication number: 20010006121
    Abstract: A tool for effecting drilling and/or chiseling and including a tubular shaft (2, 22) having an axially extending through-channel (8, 28) and provided, at one of its axial ends, with a drilling or chiseling head (5), and a connection member (3, 23) connected with another of axial ends of the shaft and provided at its end remote from the shaft (2, 22) with a shank (4, 24), the through-channel (8, 28) being connected with the tool circumference by a cross-bore (7, 27), and the largest cross-sectional surface (A1, A4) of the connection member (3, 23) corresponding at least to 2.5 times of the largest cross-sectional surface of the shank (4, 24).
    Type: Application
    Filed: December 29, 2000
    Publication date: July 5, 2001
    Inventors: Werner Kleine, Hans-Werner Bongers-Ambrosius
  • Publication number: 20010006122
    Abstract: A tool for effecting drilling and/or chiseling and including a tubular shaft (2) provided, at its one axial end, with a cutting head (5), and a connection member (3) provided at another axial end of the shaft (2) and equipped with a shank (4), with the connection member (3) having a cross-bore (7) opening into the through-channel (8) formed in the shaft (2) and, with the connection member having, along a substantial portion of its axial extent, a diameter (d1) that at most corresponds to 1.6 of a diameter (d2) of the shank (4).
    Type: Application
    Filed: December 29, 2000
    Publication date: July 5, 2001
    Inventors: Werner Kleine, Hans-Werner Bongers-Ambrosius
  • Publication number: 20010006123
    Abstract: A tool for drilling and/or chiseling for use with a hand-held mechanized tool having a suction device (10) including a housing (11) surrounding the tool (1), with the tool (1) including a tubular shaft (2) and a connection member (3) located opposite a front end of the shaft (2) for connecting the shaft (2) with the housing (11) of the suction device (10) and having a diameter larger than a diameter of the shaft (2), and with the connection member (3) being formed of a core (5) surrounding the shaft (2), and an adapter (6) surrounding the connection member core (5) and having a cross-bore (7) opening into the through-channel (8) formed in the shaft (2).
    Type: Application
    Filed: December 29, 2000
    Publication date: July 5, 2001
    Inventors: Werner Kleine, Hans-Werner Bongers-Ambrosius