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Barrier seal systems
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Patent number 6,210,107
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Issue date Apr 3, 2001
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John Crane Inc.
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Douglas J. Volden
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Gas lubricated barrier seal
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Patent number 5,713,576
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Issue date Feb 3, 1998
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John Crane Inc.
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James R. Wasser
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Secondary containment seal
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Patent number 5,375,853
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Issue date Dec 27, 1994
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John Crane Inc.
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James R. Wasser
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Barrier seal systems
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Patent number 5,249,812
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Issue date Oct 5, 1993
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John Crane Inc.
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Douglas J. Volden
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Internally installable package seal
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Patent number 4,669,738
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Issue date Jun 2, 1987
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John Crane Houdaille, Inc.
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James P. Netzel
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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