Electronic faucet and manual override system therefor

Details Electronic faucet and manual override system therefor Electronic faucet and manual override system therefor

2011-05-24

2011-05-24

Jiang, Chen-Wen (Department: 3784)

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Mixing valve with temperature motive means

C137S897000, C251S129040

Reexamination Certificate

active

07946504

ABSTRACT:
An electronic faucet for mixing hot and cold fluids and a manual override system therefor. The override system is adapted to override the electronics of the faucet in order to allow a user to gain full manual control, for example, if the user merely desires it or there is a malfunction in the faucet's electronics or an electric power outage. The faucet can be operated in an automatic mode, a manual mode and switch between those modes. According to one embodiment, the override system disables the faucet's electronics as a result of manual movement of the handles causing a motor of the electronic faucet to deviate from its normal resistance or current, signaling the electronics to become disabled. According to another embodiment, pulling or pushing of the handles mechanically disengage them from the electronic control.

REFERENCES:
patent: 4222410 (1980-09-01), Geimer
patent: 4696428 (1987-09-01), Shakalis
patent: 4700885 (1987-10-01), Knebel
patent: 4842191 (1989-06-01), Bergmann
patent: 6438770 (2002-08-01), Hed et al.
patent: 6913203 (2005-07-01), DeLangis
patent: 7624757 (2009-12-01), Schmitt

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