Joints With Sealing Surfaces TRIZ Cases

An elastic blocking nut and retaining means prevent gasket deformation during insertion, enabling fast connection without compromising seal integrity.

A composite band adapter secures threaded high-pressure coolant lines to existing engine necks without permanent modification.

A fitting design uses a case-hardened ferrule and annealed body to grip conduit ends securely.

A sanitary line attachment uses an inelastic sealing ring with tool engagement indents for secure installation.

A pipe connector uses stacked sealing members and a locking member to form a secure mechanical joint.

A compressible coupling uses circumferential teeth to interlock with a tube and prevent relative rotation.

Segmented barbed connector within shell compresses against mating surface to eliminate leakage in soft tubing connections.

Circumferential pockets in the fitting engage internal locking balls to eliminate external lockwire hazards and reduce device complexity.

Rotating pipe fastening element grooves interior walls for leak-proof connections without cutting pipes.

A pipe connection combines a polysulfone body with a brass union nut secured by an intermediary retaining ring.

Hot pressing aluminum alloy bars resolves material homogeneity issues to produce crack-free unions suitable for high-pressure pneumatic systems.

A hose fitting uses a swage collar to radially deform a socket and retain a flexible hose, ensuring permanent attachment without complex assembly steps.

A pipe connecting device uses a cylindrical member with a spring seating portion to join stainless steel pipes securely.

A universal coupling assembly joins lined and unlined pipes using a segmented design with beveled recesses.

An inclined fixing ring converts axial pressure into radial clamping force, eliminating backlash in unpressurized pipelines.

A hybrid coupling element combines a plastic connector with a metallic support sleeve to form a single integrated component.

A pipe connection assembly uses a cutting ring to form a raised collar on the tube for secure mechanical interlock.

A pipe joint indicator ring deforms under cap pressure to project a protrusion, providing immediate visual and tactile confirmation of the connection.

A conduit fitting projection captures a gripping device via radial walls.

An end member with integrated spherical parts prevents metal pipe rotation during nut tightening, avoiding sealing surface damage and fuel leakage.

A locking device uses clamp members with angularly movable inserts to secure threaded pressure fittings.

Angled collet teeth resist tube rotation within connectors, preventing unwanted movement in shut-off valve installations.

A pipe joint structure uses a lock nut to push an auxiliary retaining ring forward, embedding brass pipes securely with metal claws.

A push-to-connect fitting uses a release pusher to expose clamping mechanisms for tool-free pipe removal.

Curved sealing projections press into grooves during assembly, eliminating O-ring positioning errors and tight tolerance requirements.

Asymmetric teeth and clamping ring constrain rotation to prevent threaded coupling loosening under vibration.

Angled seal structures guide elastomeric members radially outward into gland cavities, preventing displacement into fluid channels during tightening.

A captive union nut rotates between insertion and locking positions to secure pipe sections without axial play.

A spacer body creates a defined assembly path for a pipe screw cutting ring, resolving undefined pre-assembly end positions.

Thermal contraction of the sprinkler tube presses O-rings into grooves, preventing leakage without welding.

A corrugated tube connector uses a frusto-conical clamping surface to form a double flare against an elastomeric seal.

An inclined inner circumferential surface on a union nut presses a tube with a wide contact area to distribute clamping force.

Differential coatings on a tube nut bore and outer surface drive controlled crevice corrosion to form a protective seal against particulate ingress.

Dynamic groove design in fluorine resin joints resolves the trade-off between strong initial sealing and easy sleeve detachment for maintenance.

Reducing barb taper angles lowers insertion force while alignment flanges provide ergonomic gripping surfaces for universal tool compatibility.

Roller elements flex plastic coating from metallic pipe cores, preventing core damage and corrosion protection loss during stripping.

Selective molten salt carbonitriding creates multilayer hardness on ferrules, preventing rotational torque increases while maintaining corrosion resistance.

Hydroforming creates a monolithic fitting with integrated press and threaded zones, reducing manufacturing complexity and material waste.

A nurse tank coupling uses a sliding locking collar to secure the nozzle against vibration.

A screw nipple integrates a soft seal to join hydraulic components via threaded bushing alignment.

Hydraulic pup joint extends arms to release differential pressure sticking in formation testers.

Segmented pressing ring prevents pipe twisting while maintaining hydraulic sealing integrity.

Segmenting the fitting into a stainless steel body and carbon steel stem via press-fit resolves corrosion resistance versus manufacturing cost trade-offs.

Guide means direct a counter element to lock ring nuts, preventing loosening from vibration and pressure changes.

A dual ferrule compression fitting uses optimized geometric ratios to secure tubing without slippage.

Nested tubular elements and barbed grips accommodate varying hose diameters while resisting 16 BAR pressure.

Insulated conductive layer protects corrugated steel tubing from lightning damage by diverting energy through a TVS device and spark gap.

A tube fitting assembly uses a threaded nut to plastically deform a ferrule into a circumferential notch on the tube exterior.

Protrusions on the ferrule engage the nut's internal threads to prevent misalignment and back-out, reducing assembly complexity.

A curved stopping ring with a rounded inner edge prevents leakage and structural cracking while maintaining smooth water flow.