with screws surrounded by a casing provided with grooves or cavities

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Patents Grantslast 30 patents

Information Patent Grant
Extruder with planetary roller section for cooling melts
- Patent number 11,446,617
- Issue date Sep 20, 2022
- Entex Rust & Mitschke GmbH
- Harald Rust
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mixing elements having an improved dispersing effect
- Patent number 10,207,424
- Issue date Feb 19, 2019
- Covestro Deutschland AG
- Michael Bierdel
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Twin extruder
- Patent number 5,516,205
- Issue date May 14, 1996
- The Japan Steel Works, Ltd.
- Norimasa Oda
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
3927869
- Patent number 3,927,869
- Issue date Dec 23, 1975
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
2744287
- Patent number 2,744,287
- Issue date May 8, 1956
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL