E21B1/02 - CPC Classification Index

ClassID:

135113 ⎘

E21B1/02 - CPC Classification

Classification description:

Percussion drilling Surface drives for drop hammers or percussion drilling , e.g. with a cable

Sub-classes:

E21B1/04 » Devices for reversing the movement of the rod or cable at the surface 6

Recent Application in this class:

20260125954

2026-05-07

SYSTEM AND METHOD OF MANUALLY OPERATED DRILLING ON AN EXTRATERRESTRIAL SURFACE

20240102377

2024-03-28

METHOD AND SYSTEM FOR DETECTING A STATE OF A JOINT OF A DRILL STRING

20220282577

2022-09-08

GROUND LOOP HEAT EXCHANGER

20210033216

2021-02-04

Systems and methods for underground pipe installation and soil clearing

20200158262

2020-05-21

Systems and methods for underground pipe installation and soil clearing

20200149383

2020-05-14

DOWN-THE-HOLE DRILLING CONTROL SYSTEM FOR MOBILE DRILLING MACHINES

20200072035

2020-03-05

Rock drilling device

20200071997

2020-03-05

PERCUSSIVE/ROTATING DRILL WITH BLOW-OUT, BROKEN BIT, AND PRESSURE LOSS DETECTION SYSTEMS

20190249800

2019-08-15

Systems and methods for underground pipe installation and soil clearing

#10

20190210205

2019-07-11

Hydraulic hammering device

#11

20190169938

2019-06-06

Drilling tool

#12

20170370150

2017-12-28

Rock drill

#13

20170361445

2017-12-21

ARRANGEMENT IN IMPACT UNIT

#14

20170275947

2017-09-28

Self-supporting pneumatic hammer positioner with universal joint

#15

20170089136

2017-03-30

Percussive/rotating drill with blow-out, broken bit, and pressure loss detection systems

#16

20170074040

2017-03-16

ARRANGEMENT IN ROCK DRILLING MACHINE AND METHOD OF MOUNTING ROCK DRILLING MACHINE

#17

20170030182

2017-02-02

Remote control of stroke and frequency of percussion apparatus and methods thereof

#18

20160318167

2016-11-03

Damping device for a percussion device, percussion device and rock drilling machine

#19

20160215573

2016-07-28

Shock wave modification in percussion drilling apparatus and method

#20

20160215569

2016-07-28

Shank adaptor with fracture resistant flushing hole

#21

20160138728

2016-05-19

Valve of a hydraulically striking device

#22

20160001432

2016-01-07

Breaking device

#23

20150315846

2015-11-05

Downhole drilling assembly with motor powered hammer and method of using same

#24

20150275459

2015-10-01

Apparatus for pile-driving or drilling

#25

20150260314

2015-09-17

Hose release device, rock drilling unit and method of managing hoses

#26

20150202763

2015-07-23

Cushioning slides

#27

20150144369

2015-05-28

Hammer Raising Device

#28

20150122117

2015-05-07

Device And Method In Respect Of A Rock Drilling Machine And Rock Drilling Machine

#29

20150083501

2015-03-26

Slide valve, percussion device and method

#30

20140367133

2014-12-18

Hydraulic rotator converter for a hydraulic impact hammer and method

#31

20140338978

2014-11-20

Wellbore percussion adapter and tubular connection

#32

20140332278

2014-11-13

EXTENDED REACH DRILLING

#33

20140182938

2014-07-03

Piston strike face and bit interface for percussion hammer drill

#34

20140144705

2014-05-29

Hydraulic percussion apparatus and method of use

#35

20140083775

2014-03-27

Rotary impact drill and double-layer drilling rod mechanism

#36

20130327555

2013-12-12

Device for rock and-concrete machining

#37

20130125855

2013-05-23

Dwell cycle crank with rollers

#38

20120305280

2012-12-06

Rock drilling machine and use thereof for hindering occurrence and spreading of cavitation bubbles

#39

20120037390

2012-02-16

Free-mass and interface configurations of hammering mechanisms

#40

20110253449

2011-10-20

Methods of preloading a sonic drill head and methods of drilling using the same

#41

20110056713

2011-03-10

Single piezo-actuator rotary-hammering (SPaRH) drill

#42

20110031020

2011-02-10

Wellbore percussion adapter and tubular connection

#43

20110000695

2011-01-06

Pulse generating device and a rock drilling rig comprising such a device

#44

20100288521

2010-11-18

Vibration hammer

#45

20100270084

2010-10-28

Casing hammer power swing-out apparatus for drilling rig

#46

20100258326

2010-10-14

Method and device

#47

20100252289

2010-10-07

Drilling apparatus

#48

20100155096

2010-06-24

Fail-resistant hammer assembly for a valveless percussive drill

#49

20100089646

2010-04-15

Sonic drill head

#50

20100051348

2010-03-04

Rock drilling equipment and a method in association with same

#51

20100032177

2010-02-11

Rock drilling method and rock drilling machine

#52

20100025106

2010-02-04

Method and device

#53

20090321100

2009-12-31

Method in respect of a percussive device, percussive device and rock drilling machine

#54

20090308627

2009-12-17

Percussion device and rock drilling machine

#55

20090272555

2009-11-05

PULSE MACHINE, METHOD FOR GENERATION OF MECHANICAL PULSES AND ROCK DRILL AND DRILLING RIG COMPRISING SUCH PULSE MACHINE

#56

20090223689

2009-09-10

Percussion Device and Rock Drilling Machine Including Such a Percussion Device

#57

20090139737

2009-06-04

Chain driven reciprocating hammer with work piece centering and clamping

#58

20090032305

2009-02-05

Control device

#59

20080230248

2008-09-25

Floating Piston _ an Oil Pressure Oscillation Dampening Device for Rock Drilling and Breaking Hammers

#60

20080000662

2008-01-03

Chain driven reciprocating hammer with automatic work piece input centering and clamping

#61

20070199725

2007-08-30

Pressure-fluid-operated percussion device

#62

20050230153

2005-10-20

Device for simulataneously casing a hole while drilling

#63

16804145

2022-04-05

Intelligent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna

#64

15660611

2020-03-31

Intellegent blast-hole drill bit with redundant transducer wear sensor and remote recessed reflector antenna

#65

14191664

2019-08-20

Fluid driven drilling motor

#66

13740653

2015-10-06

Portable hard rock drill rig