Water vending apparatus

This invention describes a water vending machine that purifies water using distillation. It dispenses water through a spout, controlled by a valve that opens when a user is detected by a proximity sensor. The system also includes a sensor to check the water's purity after it leaves the spout, and the claims specifically describe a membrane-based pump with a system to precisely manage and verify any additives delivered.

Why it matters: Advancements in compact, energy-efficient distillation and precise microfluidic control systems since 2020 could make the integrated compressor and additive verification more viable. These improvements reduce the complexity and cost of such a system.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedDistillation unit, sensors, controller, precise additive management

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