Laggings making use of fluid cushions

Industry

CPC
E21D11/157

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D11/00Lining tunnels, galleries or other underground cavities

Current Industry

E21D11/157Laggings making use of fluid cushions

Industries

Patents Grantslast 30 patents

Information Patent Grant
Rigidifiable plastic composites and manufacturing methods therefor
- Patent number 5,874,151
- Issue date Feb 23, 1999
- ILC Dover, Inc.
- Donald R. Cohee
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making three dimensional articles from rigidizable plasti...
- Patent number 5,651,848
- Issue date Jul 29, 1997
- ILC Dover, Inc.
- Donald R. Cohee
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mine support bag
- Patent number 5,615,979
- Issue date Apr 1, 1997
- Fen-Fen Lin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Preload headboard for an elongate prop
- Patent number 5,288,178
- Issue date Feb 22, 1994
- HL&H Timber Products (PTY) Ltd.
- Frans R. P. Pienaar
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for formation of a tunnel lining
- Patent number 4,895,480
- Issue date Jan 23, 1990
- Signode Corporation
- Gert Jackel
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and device for the backfilling of roadway supports in mine a...
- Patent number 4,465,405
- Issue date Aug 14, 1984
- GTG Gesteins- und Tiefbau GmbH
- Werner Durrfeld
- E21 - EARTH DRILLING MINING
Information Patent Grant
Underground roadway or tunnel support
- Patent number 4,120,164
- Issue date Oct 17, 1978
- Coal Industry (Patents) Limited
- Malcolm George Tomlin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof support equipment
- Patent number 3,978,675
- Issue date Sep 7, 1976
- Coal Industry (Patents) Limited
- Philip Peter Jenkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
3750407
- Patent number 3,750,407
- Issue date Aug 7, 1973
- E21 - EARTH DRILLING MINING
Information Patent Grant
3508408
- Patent number 3,508,408
- Issue date Apr 28, 1970
- B60 - VEHICLES IN GENERAL
Information Patent Grant
2148783
- Patent number 2,148,783
- Issue date Feb 28, 1939
- E21 - EARTH DRILLING MINING

Laggings making use of fluid cushions

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Rigidifiable plastic composites and manufacturing methods therefor

Method of making three dimensional articles from rigidizable plasti...

Mine support bag

Preload headboard for an elongate prop

Method and apparatus for formation of a tunnel lining

Method and device for the backfilling of roadway supports in mine a...

Underground roadway or tunnel support

Mine roof support equipment

3750407

3508408

2148783