with special sealing means between the engaging surfaces

Full Title

Adjustable joints; Joints allowing movement (of the quick-acting type F16L37/50; for double-walled or multi-channel pipes or pipe assemblies F16L39/04 ) > Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction > with partly-spherical engaging surfaces > with special sealing means between the engaging surfaces

Child Classifications

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• F16L 27/067 the sealing means being actuated by the medium pressure
• F16L 27/073 one of the cooperating surfaces forming the sealing means