Viscous Fluid Nozzle Screen for Masonry Injection

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Solution Overview

Problem

Existing nozzles fail to effectively inject viscous fluids, such as mortar, into deep holes, cracks, or grooves between bricks without draining outwardly, especially when gravity does not favor inward drainage, limiting the construction and repair of masonry walls with bricks and separators.

Innovation Solution

A nozzle with a screen at the tip that prevents outward draining by guiding the fluid and maintaining contact with the surface, allowing for deeper penetration of viscous fluids into narrow spaces, combined with a pumping system and connectors for efficient mortar injection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If viscous fluid is injected into deep holes or cracks without additional containment structure, then injection process is simple, but fluid drains outwardly instead of penetrating inwardly

Engineering Contradiction:
Improvefluid penetration depthVSAvoidnozzle structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The nozzle is segmented into a body and a separate screen component that can be attached to the tip. This segmentation allows the screen to be positioned precisely at the injection point to prevent outward draining, while keeping the main nozzle structure simple and easy to manufacture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A screen is introduced as an intermediary element between the nozzle and the hole/crack. This screen acts as a mediator that prevents the viscous fluid from draining outwardly while allowing it to penetrate inwardly, solving the contradiction between simple injection and effective containment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If screen is added to nozzle tip to prevent outward draining, then fluid penetration is improved, but nozzle structure becomes more complex

Engineering Contradiction:
Improvefluid containmentVSAvoidnozzle assembly
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The screen is designed with freedom of movement relative to the nozzle body, allowing it to dynamically adapt to the surface geometry of the hole or crack being injected. This dynamic capability ensures reliable fluid containment while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The screen functions as a thin film structure that can flex and conform to the injection surface. This thin film approach provides effective fluid containment without adding significant structural complexity or weight to the nozzle assembly.

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If nozzle tip breaks through screen slightly to act as guide, then nozzle displacement control is improved, but screen effectiveness may be reduced

Engineering Contradiction:
Improvenozzle guidanceVSAvoiddraining prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The screen is designed with non-uniform properties: it remains intact over most of its surface to prevent draining, but has a localized breakthrough at the center where the nozzle tip emerges. This localized modification provides guidance functionality while preserving the overall draining prevention capability.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Instead of completely breaking through the screen, only a slight breakthrough is made—just enough to allow the nozzle tip to guide displacement. This partial action is sufficient for guidance while maintaining adequate screen coverage to prevent outward draining.

Inventive Principle:
Principle #16Partial or excessive action

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 effective and efficient injection of viscous fluids into deep holes and cracks, facilitating faster and more economical brick masonry construction by ensuring proper filling and sealing of mortar between bricks, enhancing the quality and safety of constructed houses.

Implementation Method 1

comprising a screen hanging on the tip of the injector to prevent the draining outwardly the volume to fill

Methodology Applied
Scientific EffectPhysical containment: Physical Containment

Implementation Method 2

The tip of the injector should slightly break through the screen and thus to act as guide for the displacement of the nozzle through the grooves

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10058887B2Procedure of masonry and nozzle for viscous fluid injection
Publication Date: 2018.08.28 SIC SPA
  • US10058887B2 patent drawing
  • US10058887B2 patent drawing
  • US10058887B2 patent drawing

AI summary

The present invention consists in a nozzle for the efficient injection of viscous fluids into holes, cracks or groves through a mechanism preventing the draining outwardly of the volume to fill, which is obtained by incorporating to the injector's tip a screen with a central boring adjusted to the injector tip's surface, preferably of a semi-spherical form and of ferrous material, where said screen shows some freedom of movement levels with respect to the injector, thanks to screen's central boring being surrounded of magnets and having a semi-spherical profile that supplements the injector's tip.