Adjustable Nozzle With Collapsible Cleats For Mortar Application

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Solution Overview

Problem

Existing nozzles for applying flowable building materials like mortar and plaster are rigid and require multiple sizes to accommodate different mortar joint depths, leading to inefficiencies in use and storage.

Innovation Solution

A collapsible nozzle with adjustable metal cleats that can be manually compressed to alter the nozzle height, allowing for versatile use with different mortar joint sizes without changing the length, and made from durable materials like stainless steel for resistance to abrasion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a rigid nozzle is used, then the nozzle structure is simple and durable, but multiple different sized nozzles are required for different mortar joint depths

Engineering Contradiction:

Improvenozzle adaptabilityVSAvoidnozzle structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The nozzle incorporates collapsible cleats that can be manually compressed to alter the internal dimensions of the nozzle body, transforming a static rigid structure into a dynamically adjustable one. This allows the same nozzle to adapt to different mortar joint depths by changing its internal geometry through mechanical compression of the cleats.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the physical parameters of the nozzle by allowing manual compression of the cleats to alter the internal diameter and length of the nozzle chamber. This parameter adjustment enables a single nozzle to function as multiple different sized nozzles would traditionally be required.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If multiple differently dimensioned nozzles are purchased, then the correct mortar depth can be achieved for different tasks, but storage space increases and device complexity increases

Engineering Contradiction:

Improvemortar depth precisionVSAvoidnumber of nozzles

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The nozzle is designed to perform multiple functions by accommodating different mortar joint depths through adjustable cleats. A single universal nozzle design replaces the need for multiple specialized nozzles, each designed for a specific depth requirement.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The adjustable cleats enable the nozzle to dynamically change its internal dimensions to match different mortar depth requirements, allowing one nozzle to replace multiple fixed-dimension nozzles while maintaining precise control over mortar application depth.

Inventive Principle:

Principle #15Dynamics

3Weight of moving object

If the nozzle is made of thin metal, then the nozzle is lightweight and easy to handle, but resistance to abrasion decreases

Engineering Contradiction:

Improvenozzle weightVSAvoidabrasion resistance

Core Design Contradiction:

Weight of moving objectVSStrength

Solution Approach 1:

The nozzle combines thin metal construction for lightweight handling with strategic reinforcement elements (such as reinforced cleats or coated surfaces) that provide localized abrasion resistance where wear occurs during use, balancing weight and durability requirements.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentEP2051819B1Nozzle for application of flowable building material

Publication Date: 2012.01.25 OLIVER CORPORATION LTD

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Figure 3~4

AI summary

A nozzle for applying flowable building materials is provided. The nozzle is formed with cleats (24, 24' ) to allow its height to be adjusted.