초록 ▼

An apparatus and method for controlling plumbing fixtures includes an electronic control board having a microprocessor that accepts four inputs and produces four outputs. Inputs at other than the microprocessor's operating voltage are converted thereto. Outputs having different voltages are controll

An apparatus and method for controlling plumbing fixtures includes an electronic control board having a microprocessor that accepts four inputs and produces four outputs. Inputs at other than the microprocessor's operating voltage are converted thereto. Outputs having different voltages are controlled by latching relays. The control board can be used with a sink that requires a sequenced hand washing. The control board can form a node on a network that monitors and controls the functions of multiple boards throughout a facility.

대표청구항 ▼

[ We claim:] [14.] In a hand washing apparatus comprising a faucet for discharging water, a soap dispenser for dispensing soap to a user hands, a dryer means for drying hands, a first sensor for detecting hands under the faucet, a second sensor for detecting hands under said soap dispenser, a third

[ We claim:] [14.] In a hand washing apparatus comprising a faucet for discharging water, a soap dispenser for dispensing soap to a user hands, a dryer means for drying hands, a first sensor for detecting hands under the faucet, a second sensor for detecting hands under said soap dispenser, a third sensor for detecting hands proximate to the dryer means, and a programmable computer controller operatively connected to said faucet, soap dispenser, dryer means, and said first, second and third sensors, a method of assuring a proper hand washing sequence comprising the steps of:discharging water from the faucet to wet hands during a user-determined wetting time interval;dispensing soap to a user hands when said soap dispenser sensor is triggered;disabling the faucet sensor during a predetermined hand scrub time interval;thereafter discharging water from the faucet during a user-determined hand rinse time interval; andoperating said hand dryer means at the end of the rinse time interval.