Composter Layout With Extendible Tap and Nested Tool Storage

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Solution Overview

Problem

Existing composters lack convenient means for measuring composting agents, extracting leachate, and compressing materials, while also requiring tools to be readily available and compact storage solutions.

Innovation Solution

A composter design featuring a strainer portion, extendible tap, and integrated paddle and measuring cup storage, allowing for easy measurement, extraction, and compression, with a telescoping tap for controlled leachate release and compact storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If composters are designed with integrated storage for tools like paddles and measuring cups, then tools are readily available and device versatility is improved, but device complexity increases

Engineering Contradiction:
Improvedevice versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements nested storage by placing the measuring cup inside the paddle storage compartment. The paddle is stored in a dedicated compartment within the lid, and the measuring cup nests within that same compartment, creating a compact nested arrangement that maximizes space utilization while keeping tools accessible.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The lid serves multiple functions: it closes the composter to maintain hygiene and odor control, provides structural support, and contains integrated storage compartments for the paddle and measuring cup. This multi-functionality reduces the need for separate tool storage devices, improving versatility without proportionally increasing complexity.

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

2Ease of operation

If an extendible tap is provided for leachate extraction, then ease of operation is improved, but device complexity increases

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

Solution Approach 1:

The tap is designed to be extendible rather than fixed, allowing it to move between a retracted position (for compact storage and transport) and an extended position (for convenient leachate extraction). This dynamic feature improves ease of operation during use while maintaining a compact form factor when not in use, balancing operational convenience with device simplicity.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If a strainer portion is integrated to separate holding and tank portions, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemeasurement precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The composter is divided into distinct functional portions: a holding portion for raw materials, a strainer portion for separation, and a tank portion for processed material and leachate collection. This segmentation enables precise measurement and monitoring of material levels in each section, improving measurement precision while organizing complexity into manageable, functionally distinct components.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4434958B1composter
Publication Date: 2026.02.04 EXEL INDUSTRIES
  • EP4434958B1 patent drawingFigure 1
  • EP4434958B1 patent drawingFigure 2
  • EP4434958B1 patent drawingFigure 3

AI summary

A composter comprising a holding portion 11a for holding material to be composted, a tank portion 11b for collecting leachate formed during composting and a tap 2 for allowing flow of collected leachate out of the tank portion 11b. The composter may comprise a paddle 3 for tamping down material added to the composter, wherein the composter comprises a paddle storage location for the paddle 3 and paddle securing means 12a for holding the paddle 3 in the storage location. The tap 2 may be an extendible tap moveable between a retracted position and an extended position.