Maskless Coating Touch-Up Tool With Sealed Surface Application

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Solution Overview

Problem

Traditional methods for touching up surface coatings, such as chromate conversion coatings on rocket bodies, require extensive masking and chemical preparation, which can damage the surface and result in hazardous waste, especially when applied to vertical surfaces.

Innovation Solution

A maskless touch up tool with a faceplate and handle that forms a sealing interface around the target area, allowing for the application of coatings without masking, and includes a reservoir to collect excess coating, preventing drippage and reducing surface damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional masking methods are used for touch up coating, then coating application precision is improved, but surface damage and hazardous waste increase

Engineering Contradiction:

Improvecoating application precisionVSAvoidsurface damage

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and eliminates the masking step from the traditional touch up process. By using a maskless tool with a contained coating application mechanism, the harmful masking materials and associated surface damage are removed from the process while maintaining coating precision through the tool's geometric design and seal interface.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a maskless tool as an intermediary device between the coating material and the surface. This tool includes a seal interface that acts as a mediator to contain the coating application to the target area, eliminating the need for separate masking materials while preventing coating spread to unintended areas.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If masking is used to prevent coating spread, then coating application precision is improved, but device complexity and time consumption increase

Engineering Contradiction:

Improvecoating application precisionVSAvoidprocess complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the functions of masking, coating containment, and application into a single integrated maskless tool. The seal interface and geometric design of the tool combine to provide the containment function that previously required separate masking materials and steps, simplifying the overall process while maintaining precision.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The maskless tool serves multiple functions simultaneously: it contains the coating application, provides the seal interface, and acts as the application vehicle. This multi-functionality eliminates the need for separate masking materials and steps, reducing process complexity while maintaining coating precision.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If absorbent materials are used to catch excess coating, then drippage prevention is improved, but hazardous waste and disposal complexity increase

Engineering Contradiction:

Improvedrippage preventionVSAvoidhazardous waste

Core Design Contradiction:

Object-affected harmful factorsVSLoss of substance

Solution Approach 1:

The patent converts the potentially harmful excess coating that would normally require absorbent materials into a beneficial contained resource. The seal interface and tool design contain the excess coating within the target area or collection chamber, transforming what would be waste into a manageable and potentially reusable material.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The maskless tool with its seal interface acts as an intermediary that prevents excess coating from reaching the surface where it would become hazardous waste. The tool contains and directs excess coating through controlled paths, eliminating the need for absorbent materials and associated waste disposal complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If chemical preparation methods are used for touch up, then coating adhesion is improved, but surface damage and time consumption increase

Engineering Contradiction:

Improvecoating adhesionVSAvoidsurface damage

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and eliminates the chemical preparation step from the touch up process. By using a maskless tool with a seal interface that provides mechanical containment and a controlled application method, the harmful chemical preparation and associated surface damage are removed while maintaining coating adhesion through proper application techniques.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20250320596A1Maskless touch up tool for surface coatings

Publication Date: 2025.10.16 BLUE ORIGIN MANUFACTURING LLC

AI summary

A maskless touch up tool having a faceplate and handle. The faceplate is placed on a surface for touching up of a coating on the surface. The surface may be on a rocket body. The faceplate may form a seal around a target region of the surface. The faceplate has an opening configured to receive a touch up coating therethrough for application of the touch up coating to the surface. The handle may extend away from the faceplate and be configured for gripping by a user. The tool may include a reservoir, or an attachment for an external container, configured to collect excess touch up coating from the surface. The tool may be used to touch up the surface coating without the need for masking of the surface.