Automatic level sensing device used in massage tub

Details Automatic level sensing device used in massage tub Automatic level sensing device used in massage tub

2007-05-29

2007-05-29

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

Immersible electrode type

C073S29000R

Reexamination Certificate

active

10982590

ABSTRACT:
An automatic water level sensing device is used in a massage tub. The massage tube comprises: a plurality of water circulation devices and a switch; each water circulation device having at least one suction opening, at least one water outlet and a motor; the automatic water level sensing device comprising a first sensor head, a second sensor head, a sensor element and a CPU control element. The first sensor head and second sensor head are connected to the sensor element; the second sensor head is connected to the CPU control element; and the CPU control element is connected to the motor and the switch. The sensor element serves to detect a resistance between the first sensor head and second sensor head for acquiring a level of water in the massage tub.

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patent: 6810732 (2004-11-01), Shon

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