Featured patents

Fiber-Containing Diamond-Impregnated Cutting Tools and Methods of Forming and Using Same
US 08783384 B2, July 22, 2014, Core forming-type bit, Kristian S. Drivdahl et al. / Longyear TM, Inc. (South Jordan, US)
A cutting tool comprising a cutting section, the cutting section comprising:…

Method of Planting a Seed, Plant, Bush or Tree, and a Drill
US 08757295 B2, June 24, 2014, Common Drive or Advancing Means for Concurrently Boring Along Laterally Spaced Axes, Petrus Mattheus Maria Hoff / Holding P.M.M. Hoff B.V. (Steenbergen, NL)
A drill for realizing a partially tapered bore hole in a soil covering a hardpan…

Cartridge for Breaking Rock
US 08763723 B2, July 1, 2014, Boring With Explosion in Inaccessible Hole, Jarmo Uolevi Leppanen et al. / Sandvik Mining and Construction RSA (Pty) Ltd ZA
A cartridge for breaking rock which includes a tubular housing in which is formed…

Drill Bit With Enhanced Hydraulics and Erosion-Shield Cutting Teeth
US 08733475 B2, May 27, 2014, Fluid conduit lining or element, Craig Ivie et al. / National Oilwell DHT, L.P. (Conroe, US)
A drill bit of gage diameter for drilling through earthen formations and forming…

Downhole Tools Having Activation Members for Moving Movable Bodies Thereof and Methods of Using Such Tools
US 08746371 B2, June 10, 2014, With latch operated by fluid pressure or dropped element, Steven Richard Gentry / Baker Hughes Incorporated (Houston, US)
A downhole tool for use in forming a borehole in a subterranean formation,…

Polycrystalline Diamond Compact (PDC) Cutting Element Having Multiple Catalytic Elements
US 08622157 B1, Jan. 7, 2014, Diamond, Kenneth E. Bertagnolli et al. / US Synthetic Corporation (Orem, US)
A polycrystalline diamond compact, comprising:…

Polycrystalline Diamond Structure
US 08590643 B2, Nov. 26, 2013, Includes diamond, Moosa Mahomed Adia et al. / Element Six Limited (County Clare, IE)
A polycrystalline diamond (PCD) structure comprising a first region in a state…

Downhole Reamer Asymmetric Cutting Structures
US 08550188 B2, Oct. 8, 2013, Plural cutter elements longitudinally relative movable into transverse alignment, Sameer Bhoite et al. / Smith International, Inc. (Houston, US)
A cutting structure for use with a reamer in enlarging a borehole…

System and Method for Directional Drilling a Borehole With a Rotary Drilling System
US 08534380 B2, Sept. 17, 2013, Automatic Control, Michael Charles Sheppard et al. / Schlumberger Technology Corporation (Sugar Land, US)
A method for controlling a rotary drilling system, the rotary drilling system…

Method and Devices for Handling Rod-Like Pieces in Drilling and Bolting
US 08474549 B2, July 2, 2013, With Magazine for Successively Moving Unconnected, Oriented Tool or Shaft Sections to Use Position, Juha Piipponen / Sandvik Mining and Construction Oy (Tampere, FI)
A method for handling rods in a rock drilling rig, the method comprising…

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