Pipe Primer Applicator Kit for Even Interior and Exterior Coating

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Solution Overview

Problem

The application of PVC primer to pipe surfaces is inefficient, leading to uneven coverage, mess, and skin hazards due to its runny consistency and difficulty in achieving a consistent coat on both interior and exterior surfaces, which can result in inadequate sealing and potential pipe damage.

Innovation Solution

A lateral applicator kit comprising a pair of tool units, one for exterior and one for interior surface application, with absorbent sleeves and fluid communication to ensure even distribution of primer, reducing waste and skin exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a dauber or brush is used to apply primer, then the primer can be applied to the pipe surface, but the coverage becomes uneven and inconsistent

Engineering Contradiction:
Improveprimer coverage consistencyVSAvoidapplication process simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The applicator is divided into two separate units: an internal applicator for applying primer to the interior surface of the pipe and an external applicator for applying primer to the exterior surface. This segmentation allows each applicator to be optimized for its specific function, ensuring even coverage on both surfaces without the inconsistencies caused by using a single brush or dauber

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a primer reservoir and delivery mechanism as an intermediary between the primer source and the pipe surface. This intermediary system controls the flow and distribution of primer, ensuring consistent application rather than relying on manual brushing which creates uneven coverage

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If primer is applied using a dauber, then some coverage is achieved, but primer drips onto unintended surfaces creating mess and stains

Engineering Contradiction:
Improveprimer application controlVSAvoidprimer dripping and staining
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the excess primer delivery problem by using controlled delivery mechanisms in both internal and external applicators. The primer is delivered through controlled openings and channels that prevent over-application and dripping onto unintended surfaces, eliminating the staining hazard associated with traditional dauber application

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The applicators are designed to self-regulate primer delivery through their structural design, including reservoirs and controlled release mechanisms. This self-service feature ensures primer is applied in controlled amounts without requiring manual control that leads to dripping and mess

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If primer is applied with a brush, then coverage can be achieved, but skin contact with primer causes hazardous effects

Engineering Contradiction:
Improveprimer application uniformityVSAvoidskin contact hazards
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces enclosed applicator mechanisms as intermediaries between the primer and the user's skin. The internal and external applicators with their reservoirs and controlled delivery systems prevent direct skin contact with the primer, eliminating the hazardous effects while maintaining uniform application capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The applicators utilize enclosed structures and flexible components that contain the primer within the application device, preventing exposure to skin while allowing the primer to be applied uniformly to the pipe surfaces

Inventive Principle:
Principle #30Flexible shells and thin films

4Reliability

If primer is applied to ensure complete coverage, then sealing quality improves, but application time increases

Engineering Contradiction:
Improveseal qualityVSAvoidprimer application time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

By segmenting the application process into internal and external applicators that can be used simultaneously or sequentially without repositioning, the patent achieves complete coverage for reliable sealing more efficiently. Each applicator is designed to cover its specific surface area in one operation, reducing total application time while ensuring thorough coverage for quality seals

Inventive Principle:
Principle #1Segmentation

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

The kit provides a more efficient and controlled application of primer to both interior and exterior surfaces, enhancing the sealing process, reducing waste and skin hazards, and ensuring consistent coverage to prevent pipe damage.

Implementation Method 1

an absorbent, sleeve-shaped applicator... made at least in part of an absorbent material

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS11071995B2Lateral applicator kit for a pipe
Publication Date: 2021.07.27 TOOL DEN
  • US11071995B2 patent drawing
  • US11071995B2 patent drawing
  • US11071995B2 patent drawing

AI summary

A lateral applicator kit for a pipe has a first application unit and a second application unit that are configured to apply a primer material or other substance to the exterior and interior lateral surfaces of a pipe, respectively. The first application unit is configured to receive primer through a supply engagement feature, which is in fluid communication with a reservoir cavity internal to the first application unit and further in fluid communication with at least one perforated annular wall of an application receptacle configured to receive, and apply primer to, the exterior lateral surface of a pipe. The second application unit is similarly but inversely configured to apply primer to the interior lateral surface of a pipe by receiving primer into a supply receptacle, which is transferred through at least one spout set into and through an annular distributing container connected annularly around the supply receptacle.