Joints With Sealing Surfaces TRIZ Cases

A tapered inner protrusion in the inner ring preserves sealing while avoiding flow stagnation, particle precipitation, and long flushing time.

A flexible bladder, split rigid shell, and threaded collars join multiple pipes with secure sealing while simplifying assembly and disassembly.

A monolithic locking element blocks back-rotation, cutting sealing torque while preventing loosening and screw breakage in plastic connections.

A push ring and sealing assembly secures swaged or stepped pipes without brazing, enabling leak-free joints and easy reuse.

A retainer-formed U-trap in a flexible drain pipe improves cleaning access, fits varied fixture layouts, and maintains a watertight gas seal.

Asymmetric bosses and arc transitions let pipe joints tighten easily while resisting accidental disassembly and leakage.

A pawl-equipped nut and retaining ring join flanged conduit sections without twisting, preserving liquid tightness and smooth blood flow.

A protruding support inside the reaction tube holds the gas injector in position, preventing tilt and preserving uniform gas supply.

A collared union nut uses threaded holes and screws to seal hydrogen pipe flanges in tight aircraft spaces without heavy clamping nuts.

Ratchet teeth and an elastic leaf let the luer connector tighten smoothly while blocking loosening under vibration to maintain a leak-resistant seal.

A shell-and-sleeve fastener uses pawls for push-on bolt insertion, secure thread engagement, and cross-threading prevention.

A spring-loaded piston coupling enables fast airtight compressed air connection while routing exhaust through ducts to lower motor noise.

A segmented support body, gasket, and grip ring keep compression fittings sealed and restrained across varying pipe diameters.

A flanged pipe joint with a male thread member, cap nut, and gasket prevents co-rotation loosening and allows pipe removal without moving blocks.

A barbed stem and retaining collar secure a hose end without crimping, preserving full internal diameter and simplifying assembly.

A modular seal with a reduced-flow bore and check valve adapts outlet flow without costly housing redesigns.

A tapered cup-shaped adapter seals gas exchange hose connections without O-rings, reducing wear, contamination risk, and handling complexity.

A two-stage tube expansion process adds internal radial spreading after cone expansion to reduce tensile residual stress without heat treatment.

A pointy annular sealing edge forms a tight corrugated tube seal with less compression force, reducing tube damage and easing installation.

A radial recess and sealing ring let a formed pipe end seal against an adapter cone while reducing steel use and preserving strength.

A spherical-end coupling absorbs slight misalignment in differential pressure transmitter hookups while keeping a leak-free metal seal.

A nested sleeve-and-screw structure secures wellhead components under high stress while avoiding OEM-specific tooling during workovers.

A captured sealing ring deforms into an arcuate pocket and recessed groove to resist high-pressure leaks and seal displacement.

A slotted collar secures IV tubing, releases at excess pullout force, and blocks re-coupling after disconnection to reduce infection risk.

A movable core and nut compress a resilient gripping element to seal and lock different pipe diameters without tools or adapters.

An inner pipe reinforces the connecting head so higher tightening torque can deliver stable axial sealing force without deformation.

Rows of shaped grip teeth increase friction so one clamp accessory can seal and hold both soft and hard pipe materials.

A quick union nut, retainer collar, and segmented load ring replace bulky bolted joints to speed frac pipe connection and repair.

A washer-separated sealing and locking sleeve lets greenhouse spray pipe joints balance watertightness, grip, and long-term seal durability.

Compression nuts and ferrules replace welding to create strong, leak-proof tube joints with less time, cost, and safety risk.

A flexible sealing ring and plastic fixing sleeve cut leakage points and keep corrosive fluids away from metal parts.

A stainless steel inner layer with a plastic outer layer resists refrigerant corrosion while enabling bendable, flange-free air-conditioning piping.

Spring-loaded piston channels speed air motor connection and disconnection while routing exhaust air to cut noise and support hygienic cleaning.

A split polymer nut with a pliable bridge improves tube sealing across different diameters while reducing leakage in corrosive, high-purity fluid lines.

A recessed wall-mounted coupler housing with a rotating dust cover enables one-handed hose connection while keeping hoses off the floor.

A threaded inner and outer joint clamps the hose against a conical face to resist pressure-driven expansion and prevent detachment.

A flanged sleeve with a bulge and annular seal shortens fitting thread length while maintaining tube alignment and sealing.

A nested torque-limiting luer connector blocks dust, prevents over-tightening, and maintains sealing to reduce fluid leakage.

Thermal spray coatings on conduit bevels resist high-pressure slurry abrasion, extending conduit life and reducing maintenance in fracturing fluid systems.

A push-ring swage connector creates leak-free, reusable pipe joints for stepped or swaged profiles without brazing, clamps, or tools.

A sealed multi-lumen connector keeps pressure measurement and ventilation working while simplifying manual hose connection in wound therapy.

A reduction element creates a flat sealing surface on corrugated steel pipes, letting one connector body join multiple diameters reliably.

A separate locking part secures the hose in a receiver without crimping or insertion, preserving water flow and pressure across connection geometries.

Tool-engaging apertures let a threaded fitting be tightened by rotation instead of hammer impact, reducing fatigue, leaks, and failure risk.

A tapered guide and metal grip ring secure metal or plastic pipes without beveling, preventing seal displacement and leakage.

A collet, fixing nut, and flare packing replace welding to speed pipe joining while maintaining airtight sealing and protecting the pressing portion.

An axially unlockable sleeve lets a water sprayer coupler rotate independently, reducing hose twisting and wrist strain during watering.