Cowls

Industry

CPC
E21C25/145

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C25/00Cutting machines

Current Industry

E21C25/145Cowls

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method of indirect measurement of cowl position on a longwall shearer
- Patent number 5,013,091
- Issue date May 7, 1991
- Consolidation Coal Company
- Stephen L. Bessinger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for use with cutting drums of mineral machines
- Patent number 4,389,073
- Issue date Jun 21, 1983
- Gewerkschaft Eisenhutte Westfalia
- Thomas Trumper
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cowl assembly for longwall mining machine
- Patent number 4,346,939
- Issue date Aug 31, 1982
- Gerb. Eickhoff Machinenfabrik und Eisengiesserei m.b.H.
- Rolf Krause
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for pivotally positioning a clearing shield for a drum-cu...
- Patent number 4,251,112
- Issue date Feb 17, 1981
- Geb. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
- Rolf Krause
- E21 - EARTH DRILLING MINING
Information Patent Grant
Equipment for laying elongate material
- Patent number 4,196,935
- Issue date Apr 8, 1980
- Coal Industry (Patents) Limited
- Eric Dring
- E21 - EARTH DRILLING MINING
Information Patent Grant
3897110
- Patent number 3,897,110
- Issue date Jul 29, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3578811
- Patent number 3,578,811
- Issue date May 18, 1971
- E21 - EARTH DRILLING MINING
Information Patent Grant
3482879
- Patent number 3,482,879
- Issue date Dec 9, 1969
- E21 - EARTH DRILLING MINING
Information Patent Grant
3291533
- Patent number 3,291,533
- Issue date Dec 13, 1966
- E21 - EARTH DRILLING MINING

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method of indirect measurement of cowl position on a longwall shearer

Apparatus for use with cutting drums of mineral machines

Cowl assembly for longwall mining machine

Apparatus for pivotally positioning a clearing shield for a drum-cu...

Equipment for laying elongate material

3897110

3578811

3482879

3291533

Patents Applicationslast 30 patents