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Valve seat structure and assembly
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Patent number 4,911,407
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Issue date Mar 27, 1990
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Herman L. Paul
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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End loaded valve
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Patent number 4,446,883
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Issue date May 8, 1984
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Continental Disc Corporation
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Herman L. Paul
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve assembly
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Patent number 4,403,626
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Issue date Sep 13, 1983
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Continental Disc Corporation
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Herman L. Paul
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Overpressure relief control system
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Patent number 4,372,334
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Issue date Feb 8, 1983
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Continental Disc Corporation
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Herman L. Paul
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rotary energy converter
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Patent number 3,954,355
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Issue date May 4, 1976
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Herman L. Paul
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES