Mist-Generating Cleaning Implement for Airborne Dust Suppression

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Solution Overview

Problem

Conventional vacuum cleaners and dusting tools generate airborne particulates and malodors during operation, posing health risks and unpleasant experiences for operators, especially those with allergies or respiratory sensitivities.

Innovation Solution

A modular mist generating system that can be integrated with vacuum cleaners, dust mops, and hand dusters, which uses a tank, atomizer nozzle, and air pump to create a finely atomized liquid mist to suppress dust, allergens, and odors, and can apply treatments like detergents or sanitizers to the cleaning surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a rotatably-driven agitator is used to agitate debris on a surface, then debris is released from the surface and more easily ingested, but dust and debris trapped on carpet fibers are disturbed and float upwardly polluting the ambient air

Engineering Contradiction:
Improvedebris ingestion efficiencyVSAvoidairborne particulates
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The mist generating system activates before the agitator begins rotating, creating a liquid mist barrier on the carpet surface. This preliminary action suppresses dust particles before they can be disturbed and become airborne during the agitation process, while still allowing the agitator to effectively release debris from the surface

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A liquid mist serves as an intermediary substance between the agitator and the carpet surface. The mist particles coat the carpet fibers and trapped dust, increasing their weight and preventing them from becoming airborne when disturbed by the agitator, while still allowing effective debris removal

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the working airflow is increased to improve debris ingestion, then more debris can be entrained and collected, but malodors are released more intensely as air flows through the system

Engineering Contradiction:
Improvedebris collection rateVSAvoidmalodors
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The liquid mist acts as an intermediary that contacts odorous particles and malodors in the working airflow. The liquid absorbs or neutralizes these contaminants, allowing high airflow rates to maintain productivity while reducing the intensity of released malodors

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system converts the potentially harmful effect of high airflow (which releases malodors) into a beneficial effect by using the same airflow to distribute liquid mist that neutralizes odors. The high velocity airflow that would normally spread malodors instead helps atomize and distribute the odor-suppressing liquid throughout the cleaning area

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

3Ease of manufacture

If a conventional dust mop or hand duster is used to dust surfaces, then dust particles are removed from the surface, but the same particles are disturbed and float upwardly polluting the atmosphere

Engineering Contradiction:
Improvedusting effectivenessVSAvoidairborne dust particles
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The system uses pneumatic principles by employing an air pump to generate pressurized air that flows through the liquid reservoir, atomizing the liquid into a fine mist. This pneumatic delivery system effectively distributes the dust-suppressing liquid without requiring manual application, maintaining ease of operation while preventing dust particles from becoming airborne

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 system effectively reduces airborne particulates and odors by agglomerating dust and allergens, improving air quality and user experience while applying beneficial treatments to the cleaning surface without excessive moisture.

Implementation Method 1

an air pump in fluid communication with the tank inlet for supplying air to the tank, wherein, when the air pump has pressurized the supply of liquid in the tank

Methodology Applied
Scientific EffectPressurization: Pressurisation

Implementation Method 2

an atomizer nozzle in fluid communication with the first outlet and having a nozzle outlet for spraying a mist

Methodology Applied
Scientific EffectAtomization:

Data Source

PatentUS9033316B2Cleaning implement with mist generating system
Publication Date: 2015.05.19 BISSELL INC
  • US9033316B2 patent drawing
  • US9033316B2 patent drawing
  • US9033316B2 patent drawing

AI summary

A mist generating system for a cleaning implement is adapted to generate a finely atomized liquid mist for suppressing dust, allergens, and other airborne particulates. The mist generating system can be adapted to fit many cleaning implements such as vacuum cleaners, wet extraction cleaners, floor mops, and dusters to suppress airborne dust and particulates generated during operation and the cleaning process.