Eberhart Unger

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Lunen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Cross-axis cutting assembly of a selective cutting machine
- Patent number 4,718,730
- Issue date Jan 12, 1988
- Gewerkschaft Eisenhutte Westfalia GmbH
- Eberhart Unger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic control means for pipe thrust-jacking apparatus
- Patent number 4,558,629
- Issue date Dec 17, 1985
- Gewerkschaft Eisenhutte Westfalia
- Eberhart Unger
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Drive shields for tunnel-driving apparatus
- Patent number 4,482,270
- Issue date Nov 13, 1984
- Gewerkschaft Eisenhutte Westfalia
- Eberhart Unger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic ram
- Patent number 4,457,212
- Issue date Jul 3, 1984
- Gewerkschaft Eisenhutte Westfalia
- Eberhart Unger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mounting for material loading means in a mining tunnelling machine
- Patent number 4,317,594
- Issue date Mar 2, 1982
- Gewerkschaft Eisenhutte Westfalia
- Eberhart Unger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of, and apparatus for, driving and lining tunnels
- Patent number 4,147,453
- Issue date Apr 3, 1979
- Gewerkschaft Eisenhutte Westfalia
- Eberhart Unger
- E21 - EARTH DRILLING MINING