Rotating Basin Litter Box with Filter Screen
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Solution Overview
Problem
Conventional self-cleaning litter boxes often scare cats, leading to decreased usage, and existing solutions do not adequately address the need for efficient separation of excrement from litter, especially for multi-cat households where litter boxes need frequent cleaning.
Innovation Solution
A self-cleaning litter box design featuring a rotating basin with a filter screen and a waste container, where the basin rotates to separate excrement from litter using a motor and sensor system, allowing for automatic separation and easy cleaning by the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a self-cleaning mechanism is implemented in the litter box, then user effort and maintenance time are reduced, but the mechanism may scare cats and decrease usage
Solution Approach 1:
The patent removes the traditional sifting mechanism from the cat's perspective by placing it in a separate, hidden compartment. The rotating basin with filter screen is positioned such that cats cannot see or access it, extracting the cleaning function from the cat's experience space while maintaining its operational effectiveness for separating waste from litter.
Solution Approach 2:
The litter box is divided into distinct functional zones: a visible area for the cat to use and a hidden mechanical area for cleaning. The rotating basin is segregated from the main litter area, allowing the cleaning mechanism to operate independently without disturbing the cat during usage.
2Reliability
If manual cleaning is required frequently, then excrement separation is effective, but user time and effort increase
Solution Approach 1:
The litter box performs self-cleaning through an automated rotating mechanism that agitates the litter and separates waste. The filter screen automatically sifts excrement from litter when the basin rotates, eliminating the need for frequent manual intervention while maintaining reliable separation effectiveness.
Solution Approach 2:
The cleaning mechanism operates periodically through rotation of the basin at scheduled intervals. This periodic agitation and sifting action continuously maintains litter quality without requiring constant user attention, reducing cleaning frequency while preserving separation reliability.
3Productivity
If the basin rotates automatically, then cleaning efficiency increases, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into the single rotating basin structure: waste separation, litter agitation, and filter screening all occur within one integrated component. The filter screen is incorporated directly into the basin wall, merging the sifting function with the rotating mechanism rather than requiring separate components.
Solution Approach 2:
The rotating basin serves multiple purposes: it contains the litter, provides the filtering surface through its integrated screen, enables waste separation through rotation, and facilitates easy cleaning by the user. This multi-functionality reduces the need for additional separate components, managing device complexity while maintaining high cleaning efficiency.
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 design provides a convenient and non-threatening self-cleaning mechanism that effectively separates litter from excrement, reducing user effort and increasing cat usage by minimizing litter box maintenance.
Implementation Method 1
A filter screen is disposed within the interior volume extending across the basin and configured to sift excrement from litter
Implementation Method 2
a rotating basin with a filter screen and a waste container, where the basin rotates to separate excrement from litter
Data Source
AI summary
A self-cleaning litter box. The self-cleaning litter box includes a basin designed to rotate about an axis, having a hollow center with an interior volume designed to hold litter. An aperture is disposed in the basin designed to provide access to the interior volume. A filter screen disposed within the interior volume and extending across the basin is designed to sift excrement from the litter. The basin is disposed within a base that supports the basin. A waste container is positioned within the base. The waste container includes an opening in communication with the basin such that the aperture of the basin fits flush against the opening of the waste container when the basin is rotated for sifting excrement. In one embodiment, the self-cleaning litter box incorporates a motion sensor, a weight sensor and a wireless transceiver.