with devices for provisionally supporting the front face

Industry

CPC
E21D9/065

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D9/00Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries

Current Industry

E21D9/065with devices for provisionally supporting the front face

Industries

Patents Grantslast 30 patents

Information Patent Grant
Barrier forming apparatus
- Patent number 9,732,612
- Issue date Aug 15, 2017
- Glen Roy Maynard
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnel boring machine with crusher
- Patent number 6,017,095
- Issue date Jan 25, 2000
- Tony DiMillo
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnelling machine
- Patent number 5,443,305
- Issue date Aug 22, 1995
- Heierli & Co.
- Werner Heierli
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunneling machine with center cutter and debris removing means
- Patent number 5,437,500
- Issue date Aug 1, 1995
- Herrenknecht GmbH
- Gebhard Lehmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield tunneling machine
- Patent number 5,393,172
- Issue date Feb 28, 1995
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield tunnelling machine
- Patent number 5,123,708
- Issue date Jun 23, 1992
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for boring hole in the ground and apparatus therefor
- Patent number 5,078,545
- Issue date Jan 7, 1992
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield type tunneling apparatus
- Patent number 4,818,026
- Issue date Apr 4, 1989
- Kabushiki Kaisha Komatsu Seisakusho
- Toshihiro Yamazaki
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield tunneling machine
- Patent number 4,655,493
- Issue date Apr 7, 1987
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Sumi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield tunneling machine
- Patent number 4,630,869
- Issue date Dec 23, 1986
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Excavating and propelling machine for laying pipelines underground
- Patent number 4,534,676
- Issue date Aug 13, 1985
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroshi Saito
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield tunneling method and machine therefor
- Patent number 4,406,498
- Issue date Sep 27, 1983
- Kabushiki Kaisha Iseki Kaihatsu Koki
- Toshio Akesaka
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield for tunneling and mining
- Patent number 4,332,508
- Issue date Jun 1, 1982
- Philipp Holzmann Aktiengesellschaft
- Wilfried Krabbe
- E21 - EARTH DRILLING MINING
Information Patent Grant
Slideway means and excavating machines comprising slideway means
- Patent number 4,303,275
- Issue date Dec 1, 1981
- Coal Industry (Patents) Limited
- Francis A. Haskew
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cutter unit assemblies for excavating machines and to excavating ma...
- Patent number 4,302,054
- Issue date Nov 24, 1981
- Coal Industry (Patents) Limited
- Francis A. Haskew
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shield assemblies for installation in under-ground roadways and roc...
- Patent number 4,289,356
- Issue date Sep 15, 1981
- Coal Industry (Patents) Limited
- Terence R. Howard
- E21 - EARTH DRILLING MINING
Information Patent Grant
Conveyor mounted excavator
- Patent number 4,283,090
- Issue date Aug 11, 1981
- The Robbins Company
- Tyman H. Fikse
- E21 - EARTH DRILLING MINING
Information Patent Grant
Articulated boom-dipper-bucket assembly for a tunnel boring machine
- Patent number 4,203,626
- Issue date May 20, 1980
- Zokor Corporation
- Herman Hamburger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic mining apparatus and method
- Patent number 4,061,398
- Issue date Dec 6, 1977
- Kaiser Resources Ltd.
- David M. Parkes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnelling machine
- Patent number 3,961,825
- Issue date Jun 8, 1976
- Richard Lovat
- E21 - EARTH DRILLING MINING
Information Patent Grant
3556599
- Patent number 3,556,599
- Issue date Jan 19, 1971
- E21 - EARTH DRILLING MINING
Information Patent Grant
3378305
- Patent number 3,378,305
- Issue date Apr 16, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
3373572
- Patent number 3,373,572
- Issue date Mar 19, 1968
- E21 - EARTH DRILLING MINING
Information Patent Grant
3350889
- Patent number 3,350,889
- Issue date Nov 7, 1967
- E21 - EARTH DRILLING MINING
Information Patent Grant
3250078
- Patent number 3,250,078
- Issue date May 10, 1966
- E21 - EARTH DRILLING MINING
Information Patent Grant
3138933
- Patent number 3,138,933
- Issue date Jun 30, 1964
- E21 - EARTH DRILLING MINING
Information Patent Grant
2997853
- Patent number 2,997,853
- Issue date Aug 29, 1961
- E21 - EARTH DRILLING MINING
Information Patent Grant
2010422
- Patent number 2,010,422
- Issue date Aug 6, 1935
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BARRIER FORMING APPARATUS
- Publication number 20160208608
- Publication date Jul 21, 2016
- Glen Roy MAYNARD
- E21 - EARTH DRILLING MINING

with devices for provisionally supporting the front face

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Barrier forming apparatus

Tunnel boring machine with crusher

Tunnelling machine

Tunneling machine with center cutter and debris removing means

Shield tunneling machine

Shield tunnelling machine

Method for boring hole in the ground and apparatus therefor

Shield type tunneling apparatus

Shield tunneling machine

Shield tunneling machine

Excavating and propelling machine for laying pipelines underground

Shield tunneling method and machine therefor

Shield for tunneling and mining

Slideway means and excavating machines comprising slideway means

Cutter unit assemblies for excavating machines and to excavating ma...

Shield assemblies for installation in under-ground roadways and roc...

Conveyor mounted excavator

Articulated boom-dipper-bucket assembly for a tunnel boring machine

Hydraulic mining apparatus and method

Tunnelling machine

3556599

3378305

3373572

3350889

3250078

3138933

2997853

2010422

Patents Applicationslast 30 patents

BARRIER FORMING APPARATUS