Ernst R. Berthelsen

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Patents Grantslast 30 patents

Information Patent Grant
Valve bag
- Patent number 4,618,993
- Issue date Oct 21, 1986
- Dac-Emballage A.M.B.A.
- Ernst R. Berthelsen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for folding paper sacks to Z shape
- Patent number 4,540,396
- Issue date Sep 10, 1985
- Bates Ventilsakke Co. A/S
- Ernst R. Berthelsen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for sealing the valve in a valve bag
- Patent number 4,394,207
- Issue date Jul 19, 1983
- Bates Ventilsaekke Co. A/S
- Ernst R. Berthelsen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for piling or stacking sacks or bags
- Patent number 4,338,084
- Issue date Jul 6, 1982
- Bates Ventilsaekke Co. A/S
- Ernst R. Berthelsen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL