Hans-Joachim Schaeffer

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Laatzen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Extrusion devices
- Patent number 4,530,761
- Issue date Jul 23, 1985
- Hermann Berstorff Maschinenbau GmbH
- Klaus Koch
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Cylinder or barrel flange connection
- Patent number 4,529,232
- Issue date Jul 16, 1985
- Hermann Berstorff Maschinenbau GmbH
- Hans-Joachim Schaeffer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Worm press for mechanically separating liquid/solid mixtures
- Patent number 4,509,419
- Issue date Apr 9, 1985
- Hermann Berstorff Maschinenbau GmbH
- Klaus Koch
- B30 - PRESSES
Information Patent Grant
Extraction device for removing liquid from a liquid-solid mixture
- Patent number 4,404,101
- Issue date Sep 13, 1983
- Hermann Berstorff Maschinenbau GmbH
- Klaus Koch
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE