Helmut Thumm

Person

Heidenheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Means for removing wires from bales in particular waste paper bales
- Patent number 5,052,098
- Issue date Oct 1, 1991
- J. M. Voith GmbH
- Helmut Thumm
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for emptying suspension for a pulper
- Patent number 4,818,338
- Issue date Apr 4, 1989
- J. M. Voith GmbH
- Theodor Bahr
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and device for emptying suspension from a pulper
- Patent number 4,634,059
- Issue date Jan 6, 1987
- J. M. Voith GmbH
- Theodor Bahr
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulper device
- Patent number 4,592,513
- Issue date Jun 3, 1986
- J. M. Voith, GmbH
- Walter Musselmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulper for producing paper pulp suspensions
- Patent number 4,460,132
- Issue date Jul 17, 1984
- J. M. Voith GmbH
- Helmut Thumm
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pulp grinder with liquid retention
- Patent number 4,456,182
- Issue date Jun 26, 1984
- J. M. Voith GmbH
- Richard Suttinger
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Waste paper disintegrating, sorting and fiber recovery apparatus
- Patent number 4,420,117
- Issue date Dec 13, 1983
- J. M. Voith GmbH
- Fritz Peroutka
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for the production of mechanical wood pulp
- Patent number 4,405,091
- Issue date Sep 20, 1983
- J. M. Voith GmbH
- Theodor Bahr
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for producing mechanical wood pulp
- Patent number 4,401,277
- Issue date Aug 30, 1983
- J. M. Voith GmbH
- Helmut Thumm
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process and a grinding stone for preparing mechanical wood pulp
- Patent number 4,351,486
- Issue date Sep 28, 1982
- J. M. Voith GmbH
- Karl-Heinz Schmoller
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Wood pulper with constant wood feed
- Patent number 4,222,531
- Issue date Sep 16, 1980
- J. M. Voith GmbH
- Helmut Thumm
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...

Helmut Thumm

Person

Patents Grantslast 30 patents

Means for removing wires from bales in particular waste paper bales

Method for emptying suspension for a pulper

Method and device for emptying suspension from a pulper

Pulper device

Pulper for producing paper pulp suspensions

Pulp grinder with liquid retention

Waste paper disintegrating, sorting and fiber recovery apparatus

Apparatus for the production of mechanical wood pulp

Apparatus for producing mechanical wood pulp

Process and a grinding stone for preparing mechanical wood pulp

Wood pulper with constant wood feed