Conduit Spray Robot With Adaptive Arms for Interior Coating

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Solution Overview

Problem

Cylindrical conduits used for fluid transport often degrade over time, leading to issues like rupture or exposure of hazardous materials, and replacing them is costly and difficult due to their small diameter, making interior treatment challenging.

Innovation Solution

A spray coating system with a robot-sized to fit within conduits, featuring movable arms and a spray head that maintains contact with the conduit's interior surface, allowing it to apply multi-component compounds while navigating changes in diameter and bends, using a base station to supply fluids and control the robot's movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If conduits are made with small diameter to meet space constraints, then space utilization is improved, but accessibility for interior treatment becomes difficult

Engineering Contradiction:
Improveconduit diameterVSAvoidaccessibility for interior treatment
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The spraying robot is equipped with self-propelling mechanisms including propellers or jets that enable it to move autonomously through the conduit without external assistance, allowing it to service itself and the conduit interior despite the confined space

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Traditional mechanical propulsion methods are replaced with fluid dynamic propulsion using propellers or jets that can effectively move the robot through narrow conduits, substituting conventional mechanical drive systems with ones suited for confined fluid environments

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If conduits have bends or changing diameter to adapt to installation requirements, then adaptability is improved, but maintaining contact during movement becomes more difficult

Engineering Contradiction:
Improveconduit configuration adaptabilityVSAvoidarm movement coordination
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The robot employs dynamically adjustable arms that can independently extend, retract, and position themselves to maintain contact with the conduit interior surface, allowing the system to adapt to bends and diameter changes through continuous motion adjustment rather than fixed mechanical configurations

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The arm system is divided into multiple independently controllable segments that can move separately, allowing each arm to independently adapt to different conduit geometries and maintain contact points even when the conduit has complex bends or varying diameter sections

Inventive Principle:
Principle #1Segmentation

3Reliability

If multi-component compounds are used for coating to improve performance, then coating effectiveness is improved, but mixing and supply complexity increases

Engineering Contradiction:
Improvecoating performanceVSAvoidfluid supply system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fluid supply system separates different components into distinct reservoirs and delivery lines, with each component being transported independently through the robot to the mixing chamber, allowing complex multi-component compounds to be managed through segmented delivery rather than pre-mixed systems

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A centralized mixing chamber serves as an intermediary where separate fluid components are combined just before application, acting as a mediator that transforms separately supplied components into the final multi-component coating compound, simplifying the supply system while maintaining coating effectiveness

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient application of coatings within conduits, ensuring even thickness and coverage despite diameter changes and bends, reducing the need for costly replacements and allowing treatment of otherwise inaccessible areas.

Implementation Method 1

a spray head from which a compound formed from the fluids is sprayed onto the interior surface of the conduit

Methodology Applied
Scientific EffectSpray: Spray

Data Source

PatentUS12515233B2Spray coating system and method
Publication Date: 2026.01.06 HARTMAN WALSH CORP
  • US12515233B2 patent drawing
  • US12515233B2 patent drawing
  • US12515233B2 patent drawing

AI summary

A spray coating system includes a spraying robot sized to fit within a conduit. The spraying robot includes arms that extend outward and retract inward to maintain contact with an interior surface of the conduit. The spraying robot is configured to be coupled with hoses that separately supply different fluids to the spraying robot. The spraying robot includes a spray head from which a compound formed from the fluids is sprayed onto the interior surface of the conduit. The spraying robot is configured to be pulled through the conduit and/or self-propel in the conduit to spray the compound onto the interior surface of the conduit and form a coating thereon.