Bezel Assembly for Litter Containment and Easy Cat Entry

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Solution Overview

Problem

Existing litter boxes face challenges such as litter and waste being tracked outside the box, difficulty for animals to enter, incomplete waste elimination, natural grooming behaviors leading to furniture damage, odor and bacteria management, and the need for customizable features.

Innovation Solution

A litter device with a bezel assembly and removable accessories, including litter guards, grooming portions, and a filtering system, which maintains litter and waste within the device, attracts animals, and reduces odors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a litter box is designed with standard entry height, then it is simple in structure, but small animals or elderly animals with limited mobility cannot easily enter

Engineering Contradiction:
Improveease of entryVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The entry structure is segmented into multiple levels with intermediate steps, allowing animals to gradually ascend to the chamber rather than making a single large jump. This segmentation of the entry path enables small or mobility-impaired animals to access the litter box while maintaining overall structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a vertical dimension with intermediate steps at different heights, creating a graduated entry system. This dimensional approach allows animals to use their existing jumping and stepping abilities across multiple smaller vertical increments rather than confronting a single high barrier.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the litter box has open sides for easy access, then animals can easily enter and exit, but litter and waste are easily tracked outside the box

Engineering Contradiction:
Improveaccess easeVSAvoidlitter tracking
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The bezel assembly provides localized containment at the critical entry/exit zone where litter tracking occurs most frequently. By concentrating the containment function at this specific location rather than enclosing the entire box, the design maintains easy animal access while locally preventing litter from being carried outside.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The bezel assembly acts as an intermediary element between the open litter box interior and the surrounding environment. It intercepts litter and waste at the boundary zone, preventing them from being tracked outside while not interfering with animal movement in and out of the box.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If accessories are permanently attached to the litter box, then features are stable and reliable, but the device cannot be easily customized or adapted to different animal needs

Engineering Contradiction:
ImprovecustomizabilityVSAvoidattachment stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The attachment system transitions from static permanent fixation to dynamic removable attachment. Accessories can be attached, detached, and repositioned as needed, allowing the system to adapt to different animal requirements while maintaining stable attachment when accessories are installed. The magnetic or snap-fit mechanisms provide sufficient holding force during use while enabling easy removal.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bezel assembly serves multiple functions: it provides structural containment, acts as a mounting platform for various accessories, and enables customization. By integrating an accessory mounting system into the bezel structure, the design achieves versatility without compromising the primary containment function or requiring separate attachment mechanisms.

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

4Productivity

If the litter box contains features to address animal behavior, then animal attraction and proper usage improve, but the device becomes more complex

Engineering Contradiction:
Improveusage effectivenessVSAvoidfeature complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Multiple behavioral features (litter containment, grooming surfaces, scratching areas, intermediate steps) are merged into a single integrated bezel assembly structure. This consolidation provides comprehensive animal behavior support while avoiding the complexity of separate components, as all features are incorporated into one unified structural element surrounding the entry opening.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4231817B1Litter device with bezel assembly
Publication Date: 2026.02.18 AUTOMATED PET CARE PRODUCTS LLC
  • EP4231817B1 patent drawingFigure 1~3
  • EP4231817B1 patent drawingFigure 4~5
  • EP4231817B1 patent drawingFigure 6~7

AI summary

A bezel assembly comprising: a) a bezel configured for encircling an entry opening of a litter device; and b) one or more accessories removably affixed thereon. A litter device having: a) a base; b) a chamber with an entry opening, wherein the chamber is configured to retain litter and is supported by the base; c) a bezel located about the entry opening; and d) one or more accessories removably affixed to the bezel.