Debris-Filter Materials for Automatic Swimming Pool Cleaners Better Filtration for Self-Operating Pool Cleaners

This patent describes improved filter materials used mainly in automatic swimming pool cleaners, the self-operating units that roam a pool collecting dirt and debris. It comes from Zodiac Pool Systems LLC, part of the global pool equipment group Fluidra.

The Problem

An automatic pool cleaner is only as good as the filter that captures what it picks up. The filter has to trap a wide range of material, from large leaves and twigs down to fine grit and silt, while still letting water pass through freely so the cleaner keeps moving and the pump is not overworked. If the filter clogs too quickly it loses suction and has to be emptied constantly; if its openings are too coarse, fine debris slips straight through and clouds the water. Pool cleaner filters also live in a harsh environment of sunlight and pool chemicals, so the material has to stand up to repeated use without degrading.

What This Invention Does

The patent sets out debris-filter materials engineered principally for automatic pool cleaners, balancing the competing demands of fine capture and free flow. The material is designed to hold both coarse and fine debris while maintaining the filtration performance and water throughput that an automatic cleaner needs to operate effectively. By tuning the structure of the filter medium, the invention aims to extend how long the cleaner can run between cleanings and to improve the clarity of the water it leaves behind. The patent covers the filter materials themselves and their application within pool cleaning equipment.

Key Features

• Wide debris range. The material is built to capture both large debris and fine particles.
• Maintained flow. Filtration is balanced against free water throughput so the cleaner keeps working.
• Built for pool cleaners. The materials are tailored principally for automatic swimming pool cleaner units.
• Longer run time. Improved debris handling aims to reduce how often the filter must be emptied.
• Durable medium. The filter material is suited to repeated use in a pool environment.

Who Is Behind It

The applicant is Zodiac Pool Systems LLC, a leading maker of pool cleaners and pool equipment and part of the Fluidra group, which owns brands including Zodiac, Polaris and Jandy. The named inventors are E. Keith McQueen, Remi Deloche and Louis Favie.

Why It Matters

Automatic pool cleaners are a mainstream product in a country with as many backyard pools as Australia, and the filter is the part owners interact with most. A filter material that captures more debris, clogs less and keeps the water clearer makes the whole cleaning system more effective and less of a chore. Protecting the materials in Australia supports the company’s position in a competitive local pool-care market.

Related Concepts

• Automatic swimming pool cleaner – the device these filter materials are made for.
• Filtration – the core process the material performs.
• Swimming pool – the environment the equipment serves.
• Fluidra – the parent group behind the Zodiac brand.
• Filter media) – the broader idea of engineered materials that trap debris from water.

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AU 2026201918 was published in the Australian Official Journal of Patents on 2 April 2026 and is open for public inspection. Patent applications represent inventions that are sought to be protected and do not necessarily reflect commercially available products.