Ralf Dedeken

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Witten-Heven, DE

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Patents Grantslast 30 patents

Information Patent Grant
Contactless pressurizing-gas shaft seal
- Patent number 5,435,574
- Issue date Jul 25, 1995
- Pacific Wietz GmbH & Co. KG
- Karl-Heinz Victor
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Contactless pressurizing-gas shaft seal
- Patent number 5,368,314
- Issue date Nov 29, 1994
- Pacific Wietz GmbH & Co. KG
- Karl-Heinz Victor
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Shaft seal assembly, especially for high-pressure turbocompressors
- Patent number 5,158,431
- Issue date Oct 27, 1992
- Mannesmann AG
- Helmut Schellong
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Shaft seal assembly, especially for high-pressure turbocompressors
- Patent number 5,149,249
- Issue date Sep 22, 1992
- Mannesmann AG
- Helmut Schellong
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Contactless pressurizing-gas shaft seal
- Patent number 5,092,612
- Issue date Mar 3, 1992
- Pacific Wietz GmbH & Co. KG
- Karl-Heinz Victor
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...