Circuit arrangement for the non-contacting control of a sanitary

Details Circuit arrangement for the non-contacting control of a sanitary Circuit arrangement for the non-contacting control of a sanitary

1987-08-18

1988-11-01

Hix, L. T.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

13762411, H01H 4724

Patent

active

047824247

ABSTRACT:
In a circuit arrangement for the non-contacting control of a sanitary fitting, the signal, by which the solenoid valve or valves is/are controlled, is monitored with regard to the leading or decaying edge. If the leading edge appears, then the sensitivity of the entire circuit arrangement is reduced from a higher to a lower value; on the other hand, if the decaying edge appears, then the sensitivity of the circuit arrangement is once more increased to the original higher value, possibly with a time lag. Due to this, a "self-holding effect" due to the flowing water is prevented from occuring.

REFERENCES:
patent: 3575640 (1971-04-01), Ishikawa
patent: 3799198 (1974-03-01), Kijimoto
patent: 4064509 (1977-12-01), Stockdale

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