Quotables
"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
Ambose Bierce
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7992658 | Pilot reamer with composite framework A reamer for subterranean wellbores may include a composite framework, which may include one or more high strength stems, each having one or more reamer bodies coupled thereto. The body may include a plurality of plates coupled together and may include additional co... | 08/09/2011 |
| 7766103 | Drill bit and a single pass drilling apparatus A drill bit and a single pass drilling apparatus are disclosed. The one-piece drill bit is rotatable about a drilling axis and has a connection portion, adapted to be rigidly connected to a drill steel, a pilot part and a reamer part. The reamer part has a leading a... | 08/03/2010 |
| 7753144 | Drill bit with a retained jack element A drill bit having a bit body intermediate a shank and a working face having at least one cutting insert. A bore is formed in the working face co-axial within an axis of rotation of the drill bit. A jack element is retained within the bore by a retaining element tha... | 07/13/2010 |
| 7641002 | Drill bit In one aspect of the present invention, a rotary drag drill bit has a body intermediate a shank and a working face. The working face has a plurality of blades converging towards a center of the working face and diverging towards a gauge of the working face. A carbid... | 01/05/2010 |
| 7571780 | Jack element for a drill bit In one aspect of the present invention, a drill bit has an axis of rotation and a working face with a plurality of blades extending outwardly from a bit body. The blades form in part an inverted conical region and a plurality of cutters with a cutting surface are ar... | 08/11/2009 |
| 7549489 | Jack element with a stop-off In one aspect of the present invention, a drill bit has a body intermediate a shank and a working face, the working face comprising a plurality of blades formed on the working face and extending outwardly from the bit body. Each blade comprises at least one cutting ... | 06/23/2009 |
| 7537067 | Rotary claw bit A rotary claw bit for drilling. The rotary claw bit includes a base plate having multiple lobes, the lobes having upper surfaces located in the same plane and lower surfaces located in the same plane. A plurality of bullet tooth attachment blocks are attached to the... | 05/26/2009 |
| 7506706 | Retaining element for a jack element A drill bit having a bit body intermediate a shank and a working face having at least one cutting insert. A bore is formed in the working face co-axial within an axis of rotation of the drill bit. A jack element is retained within the bore by a retaining element tha... | 03/24/2009 |
| 7464774 | Drill bit and system for drilling a borehole A drill bit for drilling a borehole in an object, the drill bit having a central longitudinal axis and comprising: a pilot section for drilling a pilot bore section of the borehole in the object; an under-reaming s... | 12/16/2008 |
| 7455129 | Drilling and/or chiseling tool A drilling and/or chiseling tool, in particular for machining materials such as concrete, rock, masonry, and the like, having a hard metal cutting element (1) contained in the machining end of the tool head, a radially outer, second working region (II) of the... | 11/25/2008 |
| 7424922 | Rotary valve for a jack hammer In one aspect of the present invention a tool string comprises a jack element substantially coaxial with an axis of rotation. The jack element is housed within a bore of the tool string and has a distal end extending beyond a working face of the tool string. A rotar... | 09/16/2008 |
| 7419016 | Bi-center drill bit In one aspect of the present invention a drill bit assembly comprises a working portion opposite a shank of the bit. The working portion has a plurality of cutting elements. The drill bit assembly also has a central axis eccentric to its axis of rotation. A jack ele... | 09/02/2008 |
| 7416036 | Latchable reaming bit A drilling assembly supports a liner for making a wellbore. The BHA comprises a pilot bit and a reamer above it that is larger in diameter than the suspended liner. If the BHA needs to be pulled out, the reamer is brought into contact with the liner and a latch mech... | 08/26/2008 |
| 7389829 | Method and apparatus for forming bored hole A method and apparatus for creating a reamed hole below the surface are disclosed. The reaming apparatus is arranged to be connected to one or more boring stems and has an interior section and an exterior section. The interior section is rotatable independently of t... | 06/24/2008 |
| 7384223 | Anchoring drill bit, system and method of anchoring A system, apparatuses and methods for anchoring are provided. The system includes two-stage drill bit and a method of anchoring into a two-stage hole drilled by the drill bit. The apparatus of the instant invention includes a two-stage drill bit for drilling a pilot... | 06/10/2008 |
| 7367099 | Method for assembling two parts having accurate dimensions and use for brazing of a linac RFQ accelerator A method of assembling two parts of which the dimensions of one of the parts or the final assembly are to be adhered to with precision. In the part whose dimensions are to be adhered to with the highest level of precision, a groove is machined to have a depth greate... | 05/06/2008 |
| 7360612 | Roller cone drill bits with optimized bearing structures A roller cone drill bit may include optimally designed bearing structures and cutting structures. The roller cone drill bit may include three cone assemblies rotatably mounted on respective spindles via respective bearing structures. Each cone assembly may have a re... | 04/22/2008 |
| 7360610 | Drill bit assembly for directional drilling In one aspect of the invention a drill bit assembly has a body portion intermediate a shank portion and a working portion, the working portion having at least one cutting element. A shaft is supported by the body portion and extends beyond the working portion. The s... | 04/22/2008 |
| 7350596 | Methods and apparatus for expanding the diameter of a borehole A borehole reamer which may be deployed to a desired depth in an existing uncased borehole or below existing casing and used to substantially expand the diameter of the borehole. The diameter may be expanded by an amount that ranges from a fraction to a multiple of ... | 04/01/2008 |
| 7347291 | Bit assembly A bit assembly for a drilling apparatus working by impact and rotation or merely by rotation, and comprising a pilot bit (1) drilling the hole centre and in connection with the pilot bit a ring bit (2) is arranged to drill the outer circle of the hole ... | 03/25/2008 |
| 7341119 | Hydro-lifter rock bit with PDC inserts A rolling cone rock bit includes a plurality of PDC or other cutters mounted to the leg of the drill bit and positioned to cut the corner of the bottomhole. The plurality of cutters may be the primary cutting component at gage diameter, or may be redundant to gage t... | 03/11/2008 |
| 7337858 | Drill bit assembly adapted to provide power downhole In one aspect of the invention, a drill bit assembly has a body portion intermediate a shank portion and a working portion, the working portion having at least one cutting element. The working portion also has an opening to an axial chamber disposed in the body port... | 03/04/2008 |
| 7334652 | Roller cone drill bits with enhanced cutting elements and cutting structures Roller cone drill bits are provided with cutting elements and cutting structures optimized for efficient drilling of soft and medium formations interspersed with hard stringers. The cutting elements and cutting structures may be satisfactorily used to drill downhole... | 02/26/2008 |
| 7328755 | Hydraulic drill bit assembly In one aspect of the present invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element and the body portion has at least a portion of a jackleg apparatus. The jackleg ap... | 02/12/2008 |
| 7316277 | Bottom hole assembly A bottom hole assembly has a drill bit and an under-reamer on the up-hole side of the drill bit. In one aspect, the assembly further has a compliant element linking the drill bit to the under-reamer, the compliant element allowing displacement of the drill bit relat... | 01/08/2008 |
| 7299887 | Roller bit with a journal pin offset from the central axis thereof This invention relates to a single cone bit with offset axis and composite cones for oil and gas drilling, mining and other subterranean drilling operations. The bit consists of a head body and a cone. The cone section has a shape of composite cones. The outer circu... | 11/27/2007 |
| 7296639 | Wellstring assembly A wellstring assembly comprising a tubular first wellstring part with a passageway; a second wellstring part co-operating with the first wellstring part; and a releasable wellstring-interconnecting means for selectively interconnecting the first and second wellstrin... | 11/20/2007 |
| 7275605 | Rotatable drill shoe A rotatable drilling shoe attachable to a section of casing that allows for drilling and casing of a well bore in a single trip. The drilling shoe includes a fixed section and a rotatable section that has a drillable bit attached thereto. The drilling shoe further i... | 10/02/2007 |
| 7270196 | Drill bit assembly In one aspect of the present invention a drill bit assembly comprises a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element. The body portion has at least a portion of a reactive jackleg apparatus whi... | 09/18/2007 |
| 7258179 | Rotary bit with an indenting member In one aspect of the invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has a recess with a side wall which is substantially coaxial with the shank portion. At least one cutting element is attach... | 08/21/2007 |
| 7258165 | Hole opener and drillable casing guide and methods of use A down-hole tool guide is disclosed for deflecting various down-hole tools having a tendency to hang or bind in uncased bore holes. The down-hole tool guide or ball guide assembly, being adaptive to the down-hole tools, extends forwardly there from and includes an e... | 08/21/2007 |
| 7255181 | Method and device for the drilling of holes in ground or rocky material In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit (1) mounted on a drill rod... | 08/14/2007 |
| 7243737 | Interchangeable reamer The present disclosure relates to back reamers having bases including leading ends that can be connected to a drill string and trailing ends that can be connected to product desired to be pulled through a bore being backreamed. The back reamers also include reaming ... | 07/17/2007 |
| 7225886 | Drill bit assembly with an indenting member In one aspect of the invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has a recess with a side wall which is substantially coaxial with the shank portion. At least one cutting element is attach... | 06/05/2007 |
| 7226250 | Tool and method for forming a lug hole A single tool that provides multiple machining operations for forming a lug hole through a vehicle wheel hub includes an end portion having a first diameter and a mid-portion having a second diameter that is greater than the first diameter. A spade drill bit is moun... | 06/05/2007 |
| 7214009 | Drilling tool A drilling tool consisting of a drill shank having a drill point and of a transition section which adjoins the drill shank in the axial direction and which merges into a clamping shank, the transition section being heat-treated in such a way that it has higher bendi... | 05/08/2007 |
| 7207398 | Steerable rotary drill bit assembly with pilot bit A rotary drill bit assembly suitable for directionally drilling a borehole into an underground formation, the drill bit assembly having a bit body extending along a central longitudinal bit-body axis, and having a bit-body face at its front end, wherein an annular p... | 04/24/2007 |
| 7198119 | Hydraulic drill bit assembly In one aspect of the present invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element and the body portion has at least a portion of a jackleg apparatus. The jackleg ap... | 04/03/2007 |
| 7198434 | Full-displacement pressure grouted pile system and method An auger bit is provided for a foundation pile system including a drilling rig adapted for mounting and rotating a grout pipe connected to the auger bit to form an auger. The auger bit includes a stem with lower and upper sections, which taper towards a transition w... | 04/03/2007 |
| 7192178 | Extrusion auger with removable auger segments and removal tool There is provided an extrusion auger having auger segments that are removable from an auger shaft and that include a recess to facilitate removal of the auger segments. A pulling tool is also provided to engage the recess of the auger segment and to facilitate the r... | 03/20/2007 |
