Electronic control device for liquids

Details Electronic control device for liquids Electronic control device for liquids

1983-07-05

1987-01-13

Wayner, William E.

Automatic temperature and humidity regulation

Mixing fluid of dissimilar temperature

Mixing valve with temperature motive means

1375525, G05D 23185

Patent

active

046358447

ABSTRACT:
An electronic device is disclosed for controlling the temperature of a liquid such as water flowing into a container such as a bathtub or the like. The device also controls the level of liquid within the container and includes a solid state circuit in conjunction with a temperature sensing device for maintaining the temperature of the liquid within the container to a preselected level. The control device includes a plurality of switches for preselecting the required temperature and liquid level. Switches are also provided for selecting the use of the bathtub as a bath or as a shower. The flow and mixing of water into the bathtub and the flow of water out of the bathtub is accomplished by solenoid flow control valves responsive to the control device. The invention may be applied to industrial, commercial, medical or residential applications and the like.

REFERENCES:
patent: 3437098 (1969-04-01), Stark et al.
patent: 3581984 (1971-06-01), Buechner
patent: 4406401 (1983-09-01), Nettro
patent: 4421269 (1983-12-01), Si-Ling Ts'Ao

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