Pigs/Moles TRIZ Cases
- Wedge-Cone Pipe Gripper With Spring Balls for Damage-Free Sealing
Spring-biased balls on a wedge cone grip pipe inner walls instantly, delivering high holding force without surface damage and easing release.
- Pipeline Pig Wear Indicator for Visual Surface Loss Monitoring
Visual wear indicators on pipeline pig contact surfaces reveal material loss quickly, helping prevent ineffective cleaning runs and late replacement.
- Deployment Probe Retainer for In-Pipe Leak Repair
A retainer-guided probe delivers and releases an expanding pipe repair insert inside the pipeline to seal wall breaks without excavation.
- Passive Probe Alignment Mechanism for Off-Center Pipe Deployment
A passive alignment mechanism deploys probes perpendicular to pipe walls without centering, handling varying diameters and weld obstacles.
- Pipeline Lining Curing Head With Liquid-Cooled LED Temperature Control
A transparent insulating liquid cools and electrically isolates curing LEDs, improving temperature control and diode life in pipeline lining.
- Deformable Pipeline Gauge Pig for Dent Detection Without Lodging
A resettable foam pig uses deformation sensing to detect dents and bends while passing obstructions, reducing inspection tool lodging risk.
- Duct Lining Pig With Tree Diffuser for Uniform Thermoplastic Melting
A tree diffuser and zoned heating layout spread hot gas evenly in a compact duct lining pig, preventing cold spots and weak liners.
- UAV Magnetic Tracking for Precise Pipeline Geopig Localization
A UAV tracks a geopig's magnetic field through pipeline walls to avoid inertial drift and Faraday cage errors in pipeline location.
- Spring-Sleeve Pipe Stent for Leak Repair Without Shutdown
A compressed spring stent with a sealing sleeve expands inside a damaged pipe to stop leaks without excavation or interrupting fluid flow.
- Pneumatic Water Pipe Inspection Robot for Debris-Tolerant Traversal
Inflatable actuators and pressure control let this pipe inspection robot move through debris, adapt to pipe geometry, and collect more accurate data.
- Internal Pipe Wall Isolation for In-Flow Annular Repair
An isolation sheet, dual seals, and an ejector create a low-pressure annular workspace for internal pipe wall repair without stopping flow.