Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage (container gates or closures operating by deformation of flexible walls B65D90/56; means for plugging pipes or hoses F16L55/10 )

Child Classifications

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• F16K 7/02 with tubular diaphragm
• F16K 7/10 with inflatable member
• F16K 7/12 with flat, dished, or bowl-shaped diaphragm
• F16K 7/18 with diaphragm secured at one side only, e.g. to be laid on the seat by rolling action
• F16K 7/20 with a compressible solid closure member