Bernd Federhen

Person

Siegen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method and device for regenerating foundry sand
- Patent number 11,235,376
- Issue date Feb 1, 2022
- KLEIN Anlagenbau AG
- Bernd Federhen
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Conveyor conduit for bulk material to be pneumatically conveyed
- Patent number 5,464,310
- Issue date Nov 7, 1995
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method of regenerating used foundry sands
- Patent number 5,259,434
- Issue date Nov 9, 1993
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method and apparatus for controlling the infeed of air into the con...
- Patent number 5,224,802
- Issue date Jul 6, 1993
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Valve assembly including a hollow conduit
- Patent number 5,082,024
- Issue date Jan 21, 1992
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Process for pneumatically conveying material and apparatus for cont...
- Patent number 4,955,761
- Issue date Sep 11, 1990
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method and apparatus for introducing bulk material into a pneumatic...
- Patent number 4,850,751
- Issue date Jul 25, 1989
- Alb. Klein GmbH & Co. KG
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus and process for controlling a charging operation for a fe...
- Patent number 4,674,922
- Issue date Jun 23, 1987
- Bernd Federhen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pneumatic conveying process and apparatus
- Patent number 4,592,679
- Issue date Jun 3, 1986
- Alb. Klein GmbH & Co. KG
- Hans H. Boiting
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR REGENERATING FOUNDRY SAND
- Publication number 20190351479
- Publication date Nov 21, 2019
- KLEIN Anlagenbau AG
- Bernd Federhen
- B22 - CASTING POWDER METALLURGY

Bernd Federhen

Person

Patents Grantslast 30 patents

Method and device for regenerating foundry sand

Conveyor conduit for bulk material to be pneumatically conveyed

Method of regenerating used foundry sands

Method and apparatus for controlling the infeed of air into the con...

Valve assembly including a hollow conduit

Process for pneumatically conveying material and apparatus for cont...

Method and apparatus for introducing bulk material into a pneumatic...

Apparatus and process for controlling a charging operation for a fe...

Pneumatic conveying process and apparatus

Patents Applicationslast 30 patents

METHOD AND DEVICE FOR REGENERATING FOUNDRY SAND