Helmut Timmermann

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Bochum, DE

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Patents Grantslast 30 patents

Information Patent Grant
Jigging screen device with pneumatic valve control
- Patent number 5,740,920
- Issue date Apr 21, 1998
- Ruhrkohle Aktiengesellschaft
- Helmut Timmermann
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Air pillow in the air chambers of a bottom pulsed jigging machine
- Patent number 4,832,835
- Issue date May 23, 1989
- Klockner-Humboldt Deutz AG
- Werner Strauss
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...