|
US4296825A
(en)
*
|
1977-11-25 |
1981-10-27 |
Sandvik Aktiebolag |
Rock drill
|
|
US4304312A
(en)
*
|
1980-01-11 |
1981-12-08 |
Sandvik Aktiebolag |
Percussion drill bit having centrally projecting insert
|
|
US5161859A
(en)
*
|
1983-03-23 |
1992-11-10 |
Santrade Limited |
Excavating tool cutting insert
|
|
SE448108C
(en)
*
|
1983-04-05 |
1989-02-15 |
Sandvik Ab |
MOUNTAIN DRILL FOR BATTLE DRILLING OF SMALL HAIRS INCLUDING TILTED PERIPHERAL PINS
|
|
SE8307010L
(en)
*
|
1983-12-19 |
1985-06-20 |
Santrade Ltd |
PIPE FOR SHIPPING DRILLING AND DRILLING THEREOF
|
|
US4705124A
(en)
*
|
1986-08-22 |
1987-11-10 |
Minnesota Mining And Manufacturing Company |
Cutting element with wear resistant crown
|
|
US4716976A
(en)
*
|
1986-10-28 |
1988-01-05 |
Kennametal Inc. |
Rotary percussion drill bit
|
|
US4981328A
(en)
*
|
1989-08-22 |
1991-01-01 |
Kennametal Inc. |
Rotatable tool having a carbide insert with bumps
|
|
US5025875A
(en)
*
|
1990-05-07 |
1991-06-25 |
Ingersoll-Rand Company |
Rock bit for a down-the-hole drill
|
|
US5159857A
(en)
*
|
1991-03-01 |
1992-11-03 |
Hughes Tool Company |
Fixed cutter bit with improved diamond filled compacts
|
|
US5172777A
(en)
*
|
1991-09-26 |
1992-12-22 |
Smith International, Inc. |
Inclined chisel inserts for rock bits
|
|
ZA93584B
(en)
*
|
1992-05-27 |
1993-09-01 |
De Beers Ind Diamond |
Abrasive tools.
|
|
ZA95663B
(en)
*
|
1993-10-28 |
1996-07-29 |
Galison Drilling Pty Ltd |
Mounting drill buttons
|
|
SE507098C2
(en)
*
|
1994-10-12 |
1998-03-30 |
Sandvik Ab |
Carbide pin and rock drill bit for striking drilling
|
|
SE509280C2
(en)
*
|
1994-10-12 |
1999-01-11 |
Sandvik Ab |
Carbide pin and rock drill bit for striking drilling
|
|
BR9502857A
(en)
*
|
1995-06-20 |
1997-09-23 |
Sandvik Ab |
Rock Drill Tip
|
|
SE508490C2
(en)
*
|
1996-03-14 |
1998-10-12 |
Sandvik Ab |
Rock drill bit for striking drilling
|
|
US6199451B1
(en)
*
|
1996-09-09 |
2001-03-13 |
The Sollami Company |
Tool having a tungsten carbide insert
|
|
US5845547A
(en)
*
|
1996-09-09 |
1998-12-08 |
The Sollami Company |
Tool having a tungsten carbide insert
|
|
US6073711A
(en)
*
|
1997-08-18 |
2000-06-13 |
Sandvik Ab |
Partially enhanced drill bit
|
|
US6199645B1
(en)
*
|
1998-02-13 |
2001-03-13 |
Smith International, Inc. |
Engineered enhanced inserts for rock drilling bits
|
|
DE19924683C2
(en)
*
|
1999-05-28 |
2002-02-28 |
Betek Bergbau & Hartmetall |
Method for equipping a chisel head of a shaft chisel and chisel
|
|
SE515294C2
(en)
*
|
1999-11-25 |
2001-07-09 |
Sandvik Ab |
Rock drill bit and pins for striking drilling and method of manufacturing a rock drill bit for striking drilling
|
|
USD454143S1
(en)
*
|
2000-03-29 |
2002-03-05 |
Sandvik Ab |
Drill bit
|
|
WO2003012244A1
(en)
*
|
2001-08-01 |
2003-02-13 |
Techmo Entwicklungs- Und Vertriebs Gmbh |
Drill crown
|
|
SE523913C2
(en)
*
|
2002-04-04 |
2004-06-01 |
Sandvik Ab |
Striking drill bit and a pin therefore
|
|
US6799648B2
(en)
*
|
2002-08-27 |
2004-10-05 |
Applied Process, Inc. |
Method of producing downhole drill bits with integral carbide studs
|
|
US7128773B2
(en)
*
|
2003-05-02 |
2006-10-31 |
Smith International, Inc. |
Compositions having enhanced wear resistance
|
|
SE526344C2
(en)
*
|
2003-12-09 |
2005-08-30 |
Sandvik Intellectual Property |
Rock drill bit
|
|
SE530135C2
(en)
*
|
2004-09-21 |
2008-03-11 |
Sandvik Intellectual Property |
Rock drill bit adapted for striking drilling
|
|
SE530602C2
(en)
*
|
2004-11-17 |
2008-07-15 |
Sandvik Intellectual Property |
Rock drill bit for striking drilling
|
|
US7681669B2
(en)
*
|
2005-01-17 |
2010-03-23 |
Us Synthetic Corporation |
Polycrystalline diamond insert, drill bit including same, and method of operation
|
|
USD574403S1
(en)
*
|
2007-03-09 |
2008-08-05 |
The William J. Brady Loving Trust |
Hard rock percussion drill bit with paraboloid PCD inserts
|
|
CA126500S
(en)
*
|
2008-02-26 |
2009-03-20 |
Sandvik Intellectual Property |
Rock drill bit
|
|
CA126499S
(en)
*
|
2008-02-26 |
2009-03-20 |
Sandvik Intellectual Property |
Drill bit
|
|
US8701799B2
(en)
*
|
2009-04-29 |
2014-04-22 |
Schlumberger Technology Corporation |
Drill bit cutter pocket restitution
|
|
SE534206C2
(en)
*
|
2009-10-05 |
2011-05-31 |
Atlas Copco Secoroc Ab |
Carbide pins for a drill bit for striking rock drilling, drill bit and method of grinding a cemented carbide pin
|
|
EP2369127A1
(en)
*
|
2010-03-09 |
2011-09-28 |
Sandvik Intellectual Property AB |
A rock drill bit, a drilling assembly and a method for percussive rock drilling
|
|
EP2586960B1
(en)
*
|
2011-10-27 |
2016-01-13 |
Sandvik Intellectual Property AB |
Drill bit having a sunken button and rock drilling tool for use with such a drill bit
|
|
GB201122187D0
(en)
*
|
2011-12-22 |
2012-02-01 |
Element Six Abrasives Sa |
Super-hard tip for a pick tool and pick tool comprising same
|
|
WO2013191386A1
(en)
*
|
2012-06-21 |
2013-12-27 |
한국생산기술연구원 |
Drill bit including button array having different radii extending from center of head section
|
|
USD705827S1
(en)
*
|
2012-09-07 |
2014-05-27 |
Sandvik Intellectual Property Ab |
Drill bit for percussive drilling
|
|
US20140182939A1
(en)
*
|
2012-12-28 |
2014-07-03 |
Smith International, Inc. |
Percussion drill bit with conical cutting elements
|
|
EP2799659A1
(en)
*
|
2013-05-03 |
2014-11-05 |
Sandvik Intellectual Property AB |
Percussive rock drill bit
|
|
CN105452589B
(en)
*
|
2013-05-17 |
2017-11-10 |
阿特拉斯·科普柯·塞科洛克有限公司 |
For hitting the device and system of rock drilling
|
|
US10100583B2
(en)
*
|
2013-09-04 |
2018-10-16 |
Smith International, Inc. |
Cutting elements with wear resistant diamond surface
|
|
EP2865843B1
(en)
*
|
2013-10-28 |
2016-01-20 |
Sandvik Intellectual Property AB |
Percussive rock drill bit with optimised gauge buttons
|
|
EP2902583B1
(en)
*
|
2014-01-31 |
2017-04-12 |
Sandvik Intellectual Property AB |
Percussive rock drill bit with flushing grooves
|