Dog Litter Box Grinding and Deodorizing for Odor-Free Cleaning

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Solution Overview

Problem

Existing automatic cleaning litter boxes are not available for dogs, requiring dog owners to take them outside for bathroom breaks, and they do not maintain an inconspicuous appearance or eliminate odors effectively.

Innovation Solution

A self-cleaning litter box for dogs with an upright section featuring a grinding system to dispose of waste, a horizontal base for liquid collection, and integrated water pumping, drying, and deodorizing systems to maintain freshness and conceal the waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional manual cleaning litter box is used, then the structure is simple and easy to manufacture, but it requires constant manual cleaning and creates unpleasant odors

Engineering Contradiction:
Improvemanual cleaning requirementVSAvoidcleaning mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The litter box system performs cleaning operations automatically without human intervention. The grinding mechanism processes waste autonomously, the water pumping system delivers cleaning water automatically, and the drying system operates without manual input, enabling the device to serve itself in maintaining cleanliness

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical cleaning actions with an automated grinding mechanism that uses a grinding wheel driven by a motor. This mechanical substitution eliminates the need for manual scooping and cleaning operations, transforming a manual process into an automated one

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If automatic cleaning litter boxes are designed with visible cleaning mechanisms, then cleaning effectiveness is improved, but the appearance becomes conspicuous and unsuitable for indoor placement

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidappearance inconspicuousness
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

The litter box is divided into distinct functional segments: a visible litter box area for pet use, a hidden grinding chamber for waste processing, and concealed water pumping and drying systems. This segmentation allows the cleaning mechanisms to be functionally integrated while remaining visually concealed from external view

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The grinding mechanism, water pumping system, and drying system are nested within the structure of the litter box itself, with the grinding chamber positioned inside the litter box housing and other components integrated into the overall structure. This nesting allows multiple functions to coexist within a compact, aesthetically pleasing exterior

Inventive Principle:
Principle #7Nested doll (Nesting)

3Device complexity

If waste is disposed of without grinding, then the device structure is simpler, but the waste creates unpleasant odors and requires frequent manual removal

Engineering Contradiction:
Improvewaste disposal structureVSAvoidodor generation
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces simple waste collection with an automated grinding mechanism that mechanically processes waste into fine particles. The grinding wheel, driven by a motor, mechanically breaks down solid and liquid waste, eliminating odors through thorough processing while maintaining a relatively simple overall structure

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The grinding mechanism changes the physical state and form of the waste material, transforming it from recognizable solid and liquid waste into fine, odorless particles. This parameter change in the physical state of waste eliminates odors and simplifies disposal requirements

Inventive Principle:
Principle #35Parameter changes

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 litter box automatically disposes of pet waste and sanitizes the area without creating unpleasant sights or odors, providing convenience and hygiene for dog owners.

Implementation Method 1

an inbuilt grinding system, that grinds up and disposes of solid and liquid waste

Methodology Applied
Scientific EffectGrinding: Abrasion

Implementation Method 2

An inbuilt water pumping system, and a drying and deodorizing system helps keep the litter box fresh and odor free

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 3

An inbuilt water pumping system, and a drying and deodorizing system helps keep the litter box fresh and odor free

Methodology Applied
Scientific EffectDrying: Evaporation

Implementation Method 4

An inbuilt water pumping system, and a drying and deodorizing system helps keep the litter box fresh and odor free

Methodology Applied
Scientific EffectDeodorizing: Absorption (physical)

Data Source

PatentUS12564173B2Automated self-cleaning litter box
Publication Date: 2026.03.03 RICHMOND DOUGLAS JOHN
  • US12564173B2 patent drawing
  • US12564173B2 patent drawing
  • US12564173B2 patent drawing

AI summary

An automated self-cleaning litter box is a device intended to entice pets to the device and provide users with a litter box that conveniently cleans and disposes of pet waste. In order to accomplish this the device includes an upright section with an inbuilt grinding system, that grinds up and disposes of solid and liquid waste. Further, a horizontal base section receives liquid waste and folds to create an appealing design. Additionally, the control system controls the automated aspects of the device. Furthermore, a plurality of wheels allows the device to be transported easily and efficiently. An inbuilt water pumping system, and a drying and deodorizing system helps keep the litter box fresh and odor free. Thus, the device is an automatic self-cleaning litter box that disposes of waste and sanitizes an area without creating an unpleasant sight or odor.