Automatic flow-control device

Details Automatic flow-control device Automatic flow-control device

1986-02-28

1989-06-13

Jones, W. Gary

Liquid purification or separation

Automatic control

4623, 137551, 137599, 137883, 25112904, 25112906, 222 52, 222 54, 222189, 367 94, 210251, 210422, 2104331, 210460, B01D 3600, E03C 105

Patent

active

048390399

ABSTRACT:
An add-on device (10) for converting a conventional manual faucet to an automatic faucet includes a body (12) that includes an adapter (14) by which the add-on device is mounted onto the outlet of the manual faucet. A conduit (32) provides a fluid path from the faucet outlet to a device outlet (18), and an electrically operable valve (30) is interposed in the conduit (32). A control circuit (26) operates an ultrasonic transducer (20) to sense objects in a target region near the device outlet 18, and it operates the valve (30) to permit water to flow out the device outlet (18) when the transducer detects a moving object in the target region.

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