Separable Support For Cutter Axle Patents (Class 175/346)
  • Patent number: 9157282
    Abstract: A roller reamer includes a roller assembly deployed in a corresponding axial recess in a tool body. The roller assembly is retained in the axial recess via compound wedging action provided by at least one retention assembly. The retention assembly includes first and second wedges, the first of which converts a substantially radially directed force to an axially directed force and the second of which converts the axially directed force to a cross-axially directed retention force that retains the roller assembly in the axial recess.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 13, 2015
    Assignee: Smith International, Inc.
    Inventors: Brian Mohon, Michael D. Vercher, Vishal Saheta, Ken Yik Kan Leung
  • Patent number: 8789624
    Abstract: The present invention discloses a cutting tool integrated in a drillstring for enlarging a borehole, where the cutting tool at least comprises: one or more side mills (12, 13, 14) arranged along the axis of said drillstring in a reamer housing (11), where the side mills (12, 13,14) are adapted to be rotated relative to the tool housing (11) by individual driving means. The self driven rotational side mills may be dome shaped cones where expand radially out of the reamer housing (11), or may be a special non-circular dome shaped cones where rotates without expanding.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: July 29, 2014
    Assignee: Sinvent AS
    Inventor: Mohammad Ali Taghipour Khadrbeik
  • Patent number: 8347989
    Abstract: A hole opener having a hybrid reaming section for reaming subterranean wellbores may include a tubular reamer body having a longitudinal axis and upper and lower ends, a rolling cutter mount coupled to the body, a rolling cutter rotatably coupled to the mount, and a fixed blade coupled to the body adjacent the mount. A method of forming a hybrid reamer tool for downhole use may include providing a tubular stem having couplers on the upper and lower ends, coupling a reamer body having an outer periphery to the stem between the stem upper and lower ends, coupling a rolling cutter mount to the outer periphery of the reamer body, the mount having a rolling cutter rotatably coupled thereto, and coupling a fixed blade to the outer periphery of the reamer body adjacent the rolling cutter mount.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Robert J. Buske, Rudolf C. Pessier
  • Patent number: 7661489
    Abstract: This invention describes a reaming tool (10) for attachment to a drill string having a body (12) that has connection means (14a, 14b) at either end for attachment to a drill string, at least one roller reamer (16) rotatably mounted to the body (12), and at least one channel (18) extending on the body positioned to intersect with the roller reamer (16). This ensures that flushing fluid flow is directed to each roller reamer (16).
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: February 16, 2010
    Assignee: Transco Manufacturing Australia Pty Ltd.
    Inventor: George Fyfe
  • Patent number: 7308956
    Abstract: A rotary cutter assembly constructed in accordance with this method of securing a rotary cutter to a body has a cutter pocket with a first shoulder and a truncated second shoulder. A receptacle extends into the first shoulder. A first retainer retains a first axle end of the rotary cutter and engages the first shoulder to prevent axial movement in a first direction. A projection on the first retainer engages the receptacle to prevent removal of the first retainer radially from the cutter pocket. A second retainer retains a second axle end of the rotary cutter. The second retainer has a step down portion engaging the truncated second shoulder of the cutter pocket to prevent axial movement in a second direction. A locking ring overlies the truncated second shoulder and the step down portion of the second retainer to prevent removal of the second retainer radially from the cutter pocket.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: December 18, 2007
    Inventors: William R. Wenzel, Robert Wenzel
  • Patent number: 7000713
    Abstract: A blockless reamer drilling tool comprising an elongated tool body and a reamer unit. The reamer unit includes, a shaft having a first end and a second end and a cutter mounted on the shaft between the first and second ends. A pocket on the exterior surface of the tool body is sized to accept the reamer unit with a portion of the reamer unit recessed in the pocket. A plurality of pins engage the tool body and secure the reamer unit within the pocket. The plurality of pins includes a first pin engaging the tool body and passing through the shaft at the first end and a second pin engaging the tool body and passing through the shaft at the second end.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: February 21, 2006
    Assignee: NQL Energy Services, Ltd.
    Inventor: Jay Camron Adam Crooks
  • Patent number: 6527066
    Abstract: A hole opener (10) having a tubular body (11) with threaded ends (12, 14) for connection in a drill string. The hole opener provides slots or grooves (21, 21′) along its longitudinal axis (16) into which are inserted cutter arm support members (30, 30′, 60, 60′) which may be screwed, (43) pinned (68) or bolted (168) to the body (11) to permit easy replacement of the support arms (30). The grooves (21, 21′) in the body (11) of the hole opener (10) also provide a spindle (20) spatially aligned with the groove (21, 21′) to support the proximal end of a rotatable journal body (28) supporting the cutter body (25) providing hard facing for grinding of the bore hole to be enlarged. The support arms (30) at their distal end provide further support for the cutter journals (70). The hole opener (10) also may provide pressure compensated lubrication mechanism (71) to provide grease to the bearing surfaces to increase their service life and thereby extend the useful life of the tool.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: March 4, 2003
    Inventor: Allen Kent Rives
  • Patent number: 5381868
    Abstract: The roller reamer drilling tool includes an elongated body having a fluid circulation bore. A plurality of roller reamer units are mounted circumferentially about the body and are capable of being installed as units within a series of pockets machined within the body. The pockets include a central pocket to receive the roller reamer, a lower bearing block pocket and an upper bearing block pocket which has a width greater than the width of the roller so that the roller can be installed through the upper bearing block pocket, which allows the installation of the roller, shaft and upper bearing block as a unit.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: January 17, 1995
    Assignee: Triumph*LOR Inc
    Inventor: William H. Schock
  • Patent number: 4793425
    Abstract: A roller-reamer stabilizer having a plurality of roller cutters mounted in recesses in the supporting body such that each roller is free to rotate in its own bearing blocks. The cutters and bearing blocks are provided with air bleed lubrication and cooling from a central bore in the supporting body as is common and well known in the art. The present invention deals with the supporting body of a roller-reamer stabilizer of the near bit type and in particular one that would be used in the mining blast hole drilling industry. This supporting body is characterized by having a profiled lower end having maximum diameter outer surfaces separated by minimum diameter relief areas. The maximum diameter surfaces are, respectively, aligned with the cutters and extend upwardly from near the lower surface of the body to encompass the lower bearing blocks. The minimum diameter relief areas extend further up the body and terminate level with the upper bearing blocks.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: December 27, 1988
    Inventor: Kenneth M. White
  • Patent number: 4583604
    Abstract: A roller reamer for an earth boring tool is provided in which rollers are carried by shafts in pockets in the reamer body. The shafts are supported in bearing blocks which have segmental cylindrical surfaces at their widths, and a relatively shorter length as measured along the axis of the opening in the block for the shaft. The bearing blocks are passed through an entryway communicating the pocket with a recess adjacent the end of the pocket. The bearing block is passed through the entryway in a position transverse to its operative position and into the recess, and is then rotated in the recess, by cooperation of the cylindrical walls of the bearing block and mating cylindrical walls of the recess, to the operative position. The movement of the bearing block is readily achieved since it has a clearance fit with the recess to permit free assembly and disassembly of the bearing block.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: April 22, 1986
    Assignee: Hytech International, Inc.
    Inventor: Richard L. Greer
  • Patent number: 4548284
    Abstract: A roller reamer/stabilizer tool is shown with rolling cutter assemblies removeably retained within elongated pockets in the body of the tool by cap members capturing opposing ends of the cutter axle pin. The cap members are received in sockets adjacent opposed ends of the pockets and secured thereon by balls, received within a passage defined by the mating faces of the socket and caps, and by threaded bolts. A countersunk bore in the cap members receives the bolts therethrough and provides an entry into a transverse opening through the cap to the passage for inserting or removing the balls. A shim plate between the cap and the body determine the gauge diameter of the tool.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: October 22, 1985
    Assignee: Dresser Industries, Inc.
    Inventors: Calvin W. Shinn, Robert G. Terry
  • Patent number: 4508184
    Abstract: A roller reamer/stabilizer apparatus for use on a drill string assembly. The apparatus includes a reamer body which has a number of pockets formed in the body. A cutter assembly is anchored in each pocket. The cutter assembly includes a bearing pin on which two bearing blocks are mounted with a reamer cutter mounted in between the two bearing blocks. The entire cutter assembly is first assembled and is then placed in a corresponding pocket of the reamer body. The cutter assembly is secured within the pocket by means of pull pins which are inserted transversely through the reamer body so as to engage corresponding holes which are formed in the bearing blocks of the cutter assembly. The pull pins are secured by means of snap rings that can be easily removed so that the pull pins can then be retracted to permit the cutter assembly to be replaced after it is worn.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: April 2, 1985
    Inventor: Michael S. Hansen
  • Patent number: 4480704
    Abstract: A reamer used in earth boring by the rotary method includes a body having a plurality of sockets in its outer periphery. Upper and lower blocks are disposed in the socket for supporting a shaft. A roller is rotatably mounted on the shaft with the inner periphery of the roller and the outer periphery of the shaft providing bearings for the roller. The shaft has an upper annular shoulder with a downwardly facing sealing surface disposed above the bearings. Upper and lower seals are disposed above and below the bearings with the upper seals having a facing seal sealingly engaging the roller and the downwardly facing sealing surface on the shoulder of the shaft.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: November 6, 1984
    Assignee: Smith International, Inc.
    Inventors: James R. May, Billy E. Black
  • Patent number: 4437526
    Abstract: A milling tool for forming recesses, such as an undercut in a borehole, in masonry, concrete and similar material structures includes a tool shaft with a bearing pin extending outwardly from one end of the shaft and with the axis of the pin offset eccentrically to the axis of the tool shaft. A freely rotatable annular milling head is positioned on and encircles the bearing pin. The outside surface of the milling head has cutting edge members.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: March 20, 1984
    Assignee: Hilti Aktiengesellschaft
    Inventor: Peter Gloor
  • Patent number: 4398610
    Abstract: A roller reamer assembly for mounting in a longitudinally extending undercut groove in a reamer body and having longitudinally slidable bearing blocks with cooperating locking members for securing the bearing blocks in the groove upon longitudinal movement of the bearing blocks to prevent undesired longitudinal and radial movement of the bearing blocks and an automatic lubricating system for the bearing blocks.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: August 16, 1983
    Inventor: Grey Bassinger
  • Patent number: 4378058
    Abstract: A roller reamer-stabilizer tool includes a tubular body having threaded pin and box connectors at each end adapted to be connected in a drill string and providing a fluid passage connecting the upper part of the drill string with the lower part. Rollers having integral pins at their ends are mounted in pockets in the sides of the body. The pins are journaled in holes in arcuate cross section bearing blocks received in correlative sockets in the body at the ends of the pockets. The blocks make an interference fit with the body. Release bar access passages allow a release bar to be inserted behind each block to drive, wedge or pry it out. The holes in the blocks extend only part way through the blocks, the hole in the block at one end of each roller being blind, and the wall at the end of the hole in the block at the other end of each roller being ported. Each bearing is sealed by an O ring at the mouth or open end of the hole in the block.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: March 29, 1983
    Assignee: Smith International, Inc.
    Inventor: Glenn L. Allison
  • Patent number: 4261426
    Abstract: A roller reamer-stabilizer tool includes a tubular body having threaded pin and box connectors at each end adapted to be connected in a drill string and providing a fluid passage connecting the upper part of the drill string with the lower part. Rollers having integral pins at their ends are mounted in pockets in the sides of the body. The pins are received in stepped, arcuate cross-section bearing blocks received in correlative sockets in the body at the ends of the pockets. The blocks make an interference fit with the body. Releasing bar access passages allow a releasing bar to be inserted behind each block to drive, wedge, or pry it out. Means is provided to seal and lubricate the full lengths of the pin-block interfaces. The seals are downwardly facing to avoid entrapment of foreign material. The lubrication means includes a reservoir having a flexible wall exposed to pressure outside the tool.
    Type: Grant
    Filed: May 1, 1979
    Date of Patent: April 14, 1981
    Assignee: Smith International, Inc.
    Inventor: William R. Garrett
  • Patent number: 4231437
    Abstract: An upper stabilizer and a lower reamer are mounted on an integral or one-piece body adapter to be connected in a tubular drilling string for drilling well bores.
    Type: Grant
    Filed: February 16, 1979
    Date of Patent: November 4, 1980
    Assignee: Christensen, Inc.
    Inventors: Gerald S. Swersky, Keith J. Mason
  • Patent number: 4227586
    Abstract: A roller reamer assembly for mounting in a longitudinally extending undercut groove in a reamer body and having longitudinally slidable bearing blocks with cooperating locking members for securing the bearing blocks in the groove upon longitudinal movement of the bearing blocks to prevent undesired longitudinal and radial movement of the bearing blocks and an automatic lubricating system for the bearing blocks.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: October 14, 1980
    Assignee: Grey Bassinger
    Inventor: Grey Bassinger
  • Patent number: 4189012
    Abstract: A roller reamer body is provided with junk receiving pockets that are downward extensions of the body cavities in which the rollers and their shaft mounting blocks are disposed. The slots have upwardly slidably openable or removable outside wall panels so that junk can be dumped from the slots while the reamer is still vertical in the drill string, making it unnecessary to disconnect the reamer to dump the junk.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: February 19, 1980
    Assignee: Smith International, Inc.
    Inventor: William R. Garrett
  • Patent number: 4000783
    Abstract: A self-advancing conical boring tool with frusto-conical roller cutters rotatably mounted to a tapered frame by means of self-aligning spherical roller bearings. Each roller cutter is constrained within a pair of spherical roller bearings for free rotation about an axis that is both oblique and skewed relative to a longitudinal axis of the frame.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: January 4, 1977
    Assignee: Foster-Miller Associates, Inc.
    Inventor: Hans Albert Hug