Electronic control device for liquids
US4635844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1983 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Jul 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8192
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.