Shoe cleaning apparatus and method

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Solution Overview

Problem

Existing methods for removing dirt and bacteria from footwear are inadequate, particularly in environments like hospitals where hospital-acquired infections are a concern, as they fail to effectively eliminate contaminants and debris, leading to potential health risks.

Innovation Solution

A shoe cleaning apparatus with a fluid delivery system and a recovery system, including a suction source, that cleans footwear while worn, using a platform with nubs for agitation and optional UV light for sanitization, which can be integrated with plumbing or used standalone, automatically deploying and operating to remove debris and bacteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rubber mats or carpeting are used at entrances to wipe shoes, then some loose dirt may be removed, but the cleaning effectiveness is insufficient and contaminants remain on footwear

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs a fluid delivery system that sprays cleaning fluid onto the footwear and a fluid recovery system with suction source that removes the fluid along with contaminants. This pneumatic and hydraulic approach significantly enhances cleaning effectiveness compared to passive rubber mats, reliably removing embedded dirt and bacteria from shoe surfaces and soles.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent introduces cleaning fluid as an intermediary substance between the cleaning system and the footwear. The fluid acts as a mediator that penetrates and loosens contaminants on the shoe surface, enabling effective removal. This intermediary approach transforms the inadequate direct mechanical wiping by rubber mats into an enhanced chemical-mechanical cleaning process.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a shoe cleaning apparatus uses cleaning fluid and suction system, then cleaning effectiveness is improved, but the device complexity increases

Engineering Contradiction:
Improvecontaminant removal effectivenessVSAvoidapparatus complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The shoe cleaning apparatus integrates multiple functions into a single device: fluid delivery for wet cleaning, suction for contaminant removal, UV light for sanitization, and heating for drying. This multi-functionality approach achieves comprehensive contaminant removal effectiveness while consolidating what would otherwise require multiple separate devices, thereby managing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the fluid delivery system, fluid recovery system with suction, UV sanitization system, and heating element into an integrated shoe cleaning apparatus. By merging these subsystems into a single coordinated device, the patent achieves superior contaminant removal effectiveness while avoiding the complexity of managing multiple separate cleaning devices.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If UV light is used for sanitization, then bacteria elimination is improved, but energy consumption increases

Engineering Contradiction:
Improvebacteria eliminationVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The UV light sanitization system operates periodically after the mechanical cleaning process, using UV-C radiation to eliminate bacteria and viruses on the footwear. This periodic sanitization action provides reliable bacteria elimination while limiting energy consumption to specific time intervals rather than continuous operation, balancing effectiveness with energy efficiency.

Inventive Principle:
Principle #19Periodic 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

Effectively removes debris and bacteria from footwear, reducing the risk of hospital-acquired infections and improving indoor hygiene by using a combination of cleaning fluids and UV light for sanitization, while also prolonging footwear lifespan and aesthetics.

Implementation Method 1

a fluid recovery system fluidly coupled to the upper surface and including a suction source

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

a light emitting element configured to emit light

Methodology Applied
Scientific EffectUltraviolet light emission: Light

Data Source

PatentUS11707178B2Shoe cleaning apparatus and method
Publication Date: 2023.07.25 BISSELL INC
  • US11707178B2 patent drawing
  • US11707178B2 patent drawing
  • US11707178B2 patent drawing

AI summary

A shoe cleaning apparatus and method configured for cleaning a user's shoes while the user is wearing said shoes. A cleaning solution can be supplied by the shoe cleaning apparatus and operation of the shoe cleaning apparatus can agitate the surface of the shoe and the cleaning solution. The shoe cleaning apparatus can be provided as part of a decorative or storage unit, entry system, portable system, or built-in system.