Portable Air Purifier with Segmented Canisters and Flexible Hoses

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Solution Overview

Problem

Existing portable air purification devices lack extreme portability and flexibility in component separation, and often restrict airflow due to hose diameter mismatches and lack of multiple filtration media options.

Innovation Solution

A portable air purification device with separable vacuum and filtration canisters, flexible hoses, and a step switch, featuring a transfer hose with adjustable length and diameter, and multiple filtration media including HEPA, liquid, and solid filters, ensuring efficient airflow and component placement flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the device uses fixed rigid hoses, then structural stability is improved, but portability and flexibility deteriorate

Engineering Contradiction:

Improvestructural stabilityVSAvoidportability and flexibility

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent replaces rigid hoses with flexible hoses that have sufficient structural integrity to maintain airflow while providing the necessary flexibility and portability. The flexible hoses can be positioned and routed as needed while still performing their function of transporting air between components.

Inventive Principle:

Principle #30Flexible shells and thin films

2Ease of manufacture

If the transfer hose diameter matches the restriction fitting diameter, then manufacturing simplicity is improved, but airflow velocity deteriorates

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidairflow velocity

Core Design Contradiction:

Ease of manufactureVSSpeed

Solution Approach 1:

The patent intentionally changes the diameter parameter of the transfer hose to be smaller than the restriction fitting diameter. This parameter change creates the necessary velocity pressure differential to drive airflow through the system while maintaining manufacturing feasibility through standard hose sizes.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If the intake hose diameter matches the expansion fitting diameter, then manufacturing simplicity is improved, but airflow restriction increases

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidairflow efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent changes the intake hose diameter parameter to be smaller than the expansion fitting diameter. This creates a velocity increase at the intake that enhances airflow efficiency and prevents stagnation, while still allowing for practical manufacturing using standard hose dimensions.

Inventive Principle:

Principle #35Parameter changes

4Ease of manufacture

If the filtration outlet diameter matches the transfer hose diameter, then manufacturing simplicity is improved, but air outlet restriction increases

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidair outlet flow

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent changes the filtration outlet diameter parameter to be larger than the transfer hose diameter. This reduction in restriction at the outlet allows for maximum airflow discharge while maintaining compatibility with standard hose sizes through the transfer hose connection.

Inventive Principle:

Principle #35Parameter changes

5Device complexity

If the device uses a single integrated canister, then device complexity is reduced, but placement flexibility deteriorates

Engineering Contradiction:

Improvedevice complexityVSAvoidplacement flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent divides the air purification device into separate canisters (vacuum canister and filtration canister) connected by flexible hoses. This segmentation allows each component to be positioned independently in optimal locations while still functioning as an integrated system, thereby improving placement flexibility.

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

Enables easy transportation and placement of air purification components, maintains airflow efficiency through optimized hose diameters, and provides comprehensive air filtration capabilities, enhancing portability and effectiveness.

Implementation Method 1

vacuum mechanism 25...intake hose 24...transfer hose 50...filtration canister 40

Methodology Applied

Scientific EffectVacuum suction: Pressure Gradient

Implementation Method 2

liquid filtration medium 45

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 3

liquid filtration medium 45

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 4

solid filtration medium 46

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 5

solid filtration medium 46

Methodology Applied

Scientific EffectMechanical filtration: Filter (physical)

Implementation Method 6

HEPA filter 48

Methodology Applied

Scientific EffectDiffusion: Diffusion

Implementation Method 7

HEPA filter 48

Methodology Applied

Scientific EffectInterception: Filter (physical)

Data Source

PatentUS8580022B1Portable air purification device

Publication Date: 2013.11.12 GALLARDO JOSE F

AI summary

The portable air purification device provides extreme portability such that the device can be placed virtually anywhere desired. Should an area need the device, one person can easily transport as needed. Also important is the separability of the vacuum canister and filtration canister. Often it may be advantageous to place the vacuum canister strategically, and the filtration canister supplying purified air in another location. The device provides for such via the separate canisters and the transfer hose, which can be almost any length needed. The device uses liquid filtration media, solid filtration media, and a HEPA filter.