Frank W. Christianson

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Blomkest, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Silencer for pneumatic grain conveyor
- Patent number 4,913,597
- Issue date Apr 3, 1990
- Christianson Systems, Inc.
- Roy O. Christianson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Cyclone separator with accelerator plate for pneumatic conveyor
- Patent number 4,887,936
- Issue date Dec 19, 1989
- Christianson Systems, Inc.
- Roy O. Christianson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pneumatic grain conveyor with universal frame
- Patent number 4,846,605
- Issue date Jul 11, 1989
- Christianson Systems, Inc.
- Roy O. Christianson
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL