by devices with parts pressed mechanically against the wall of a borehole or a slit

Industry

CPC
E21C37/04

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C37/00Other methods or devices for dislodging with or without loading

Current Industry

E21C37/04by devices with parts pressed mechanically against the wall of a borehole or a slit

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for removing debris from a drill hole during d...
- Patent number 11,591,867
- Issue date Feb 28, 2023
- L. Curtis Beaton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for splitting or cleaving rock
- Patent number 11,002,134
- Issue date May 11, 2021
- L. Curtis Beaton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Enhanced endcap ram accelerator system
- Patent number 10,822,877
- Issue date Nov 3, 2020
- Hypersciences, Inc.
- Mark C. Russell
- F41 - WEAPONS
Information Patent Grant
Hydraulically operated splitting device
- Patent number 10,612,377
- Issue date Apr 7, 2020
- DARDA GmbH
- Burkhard Darda
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method and apparatus for splitting or cleaving rock
- Patent number 10,087,755
- Issue date Oct 2, 2018
- L. Curtis Beaton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Borehole impact rock breaker
- Patent number 8,783,383
- Issue date Jul 22, 2014
- Jeffrey S. Senules
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Rock breaker tool
- Patent number 6,948,573
- Issue date Sep 27, 2005
- Ferruccio I. China
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process and device for splitting stones
- Patent number 6,539,933
- Issue date Apr 1, 2003
- Stu-Stein, Teknologi og Utvikling
- Roar Nordhagen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for hydraulically splitting up rock
- Patent number 5,676,427
- Issue date Oct 14, 1997
- Jong Su Ha
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of fracturing rock or similar material and apparatus therefore
- Patent number 5,087,100
- Issue date Feb 11, 1992
- Howard D. Bruce
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically actuated mechanical rock excavator
- Patent number 5,015,039
- Issue date May 14, 1991
- The United States of America as represented by the Department of the Interior
- Sterling J. Anderson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic rock splitter
- Patent number 4,571,002
- Issue date Feb 18, 1986
- Kabushiki Kaisha Komatsu Seisakusho
- Shigetake Akanuma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for mechanically breaking up rock
- Patent number 4,566,736
- Issue date Jan 28, 1986
- Kabushiki Kaisha Komatsu Seisakusho
- Shigetake Akanuma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Power-driven, wedge-operated rock splitter
- Patent number 4,474,410
- Issue date Oct 2, 1984
- Kabushiki Kaisha Komatsu Seisakusho
- Koji Ogaki
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus for breaking rock or concrete
- Patent number 4,311,343
- Issue date Jan 19, 1982
- Terraspace, Inc.
- William C. Cooley
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wear or thrust plates for hydraulic rock splitting apparatus
- Patent number 4,252,375
- Issue date Feb 24, 1981
- Langfield; Edward R.
- Edward R. Langfield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically actuated tool for mechanically splitting rock-like ma...
- Patent number 4,215,901
- Issue date Aug 5, 1980
- Langfield; Edward R.
- Edward R. Langfield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rock splitting attachment for a breaking hammer
- Patent number 4,190,293
- Issue date Feb 26, 1980
- Charles E. Nieder
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Wear or thrust plates for hydraulic rock splitting apparatus
- Patent number 4,168,862
- Issue date Sep 25, 1979
- Edward R. Langfield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulically actuated tool for mechanically splitting rock-like ma...
- Patent number 4,114,951
- Issue date Sep 19, 1978
- Edward R. Langfield
- Edward R. Langfield
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for breaking a hard compact material such as r...
- Patent number 4,114,950
- Issue date Sep 19, 1978
- Institut Cerac SA.
- George Anthony Cooper
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Method and apparatus for breaking hard compact material such as rock
- Patent number 4,099,784
- Issue date Jul 11, 1978
- Institut Cerac SA.
- George A. Cooper
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thrust-impact rock-splitter
- Patent number 4,072,353
- Issue date Feb 7, 1978
- The Curators of the University of Missouri
- George B. Clark
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for mechanically breaking up stone or reinforced concrete
- Patent number 4,026,602
- Issue date May 31, 1977
- H. Bieri AG, Liebefeld
- Hans Bieri
- E04 - BUILDING
Information Patent Grant
Rock-splitting apparatus
- Patent number 3,995,906
- Issue date Dec 7, 1976
- Helmut Darda
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for mechanically breaking up rock
- Patent number 3,957,309
- Issue date May 18, 1976
- Helmut Darda
- E21 - EARTH DRILLING MINING
Information Patent Grant
3894772
- Patent number 3,894,772
- Issue date Jul 15, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3883178
- Patent number 3,883,178
- Issue date May 13, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3791698
- Patent number 3,791,698
- Issue date Feb 12, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3743357
- Patent number 3,743,357
- Issue date Jul 3, 1973
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR REMOVING DEBRIS FROM A DRILL HOLE DURING D...
- Publication number 20210172317
- Publication date Jun 10, 2021
- L. Curtis Beaton
- E21 - EARTH DRILLING MINING
Information Patent Application
ENHANCED ENDCAP RAM ACCELERATOR SYSTEM
- Publication number 20190195022
- Publication date Jun 27, 2019
- HYPERSCIENCES, INC.
- MARK C. RUSSELL
- F41 - WEAPONS
Information Patent Application
Hydraulically operated splitting device
- Publication number 20190024507
- Publication date Jan 24, 2019
- DARDA GmbH
- Burkhard Darda
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND APPARATUS FOR SPLITTING OR CLEAVING ROCK
- Publication number 20180371906
- Publication date Dec 27, 2018
- L. Curtis Beaton
- E21 - EARTH DRILLING MINING
Information Patent Application
Borehole Impact Rock Breaker
- Publication number 20110253451
- Publication date Oct 20, 2011
- Jeffrey S. Senules
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
Rock breaker tool
- Publication number 20050088033
- Publication date Apr 28, 2005
- Ferruccio I. China
- E21 - EARTH DRILLING MINING

by devices with parts pressed mechanically against the wall of a borehole or a slit

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method and apparatus for removing debris from a drill hole during d...

Method and apparatus for splitting or cleaving rock

Enhanced endcap ram accelerator system

Hydraulically operated splitting device

Method and apparatus for splitting or cleaving rock

Borehole impact rock breaker

Rock breaker tool

Process and device for splitting stones

Apparatus for hydraulically splitting up rock

Method of fracturing rock or similar material and apparatus therefore

Hydraulically actuated mechanical rock excavator

Hydraulic rock splitter

Apparatus for mechanically breaking up rock

Power-driven, wedge-operated rock splitter

Apparatus for breaking rock or concrete

Wear or thrust plates for hydraulic rock splitting apparatus

Hydraulically actuated tool for mechanically splitting rock-like ma...

Rock splitting attachment for a breaking hammer

Wear or thrust plates for hydraulic rock splitting apparatus

Hydraulically actuated tool for mechanically splitting rock-like ma...

Method and apparatus for breaking a hard compact material such as r...

Method and apparatus for breaking hard compact material such as rock

Thrust-impact rock-splitter

Apparatus for mechanically breaking up stone or reinforced concrete

Rock-splitting apparatus

Apparatus for mechanically breaking up rock

3894772

3883178

3791698

3743357

Patents Applicationslast 30 patents

METHOD AND APPARATUS FOR REMOVING DEBRIS FROM A DRILL HOLE DURING D...

ENHANCED ENDCAP RAM ACCELERATOR SYSTEM

Hydraulically operated splitting device

METHOD AND APPARATUS FOR SPLITTING OR CLEAVING ROCK

Borehole Impact Rock Breaker

Rock breaker tool