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This invention describes an automated system for cleaning shopping carts. Carts are moved by a conveyor through a prewash station using high-pressure water jets and a soap solution, then a wash station with two brushes that squirt water and scrub. Following this are a rinse station, a drying station, and a physical disinfecting station using ultraviolet light. A two-compartment cleaning fluid tank is positioned between the prewash and wash stations.
Why it matters: UV-C LED technology has become significantly more efficient and affordable since 2007, making the disinfecting station more practical. Modern automation and sensor systems could also simplify precise control of the conveyor, jets, and brushes.
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