Electrically controlled plumbing fixture of a hot and cold water dispenser
US4873830A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9464
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Two heat exchangers are arranged in a fixture body of a water dispenser. A Peltier arrangement is provided between the two heat exchangers. Valves arranged downstream of the two heat exchangers with respect to the direction of water flow control the flow of hot and cold water through the water dispenser. The Peltier arrangement senses and responds to the temperature difference prevailing between the two heat exchangers through which respectively flows hot water and cold water. This Peltier arrangement converts the sensed temperature difference into an electrical potential or voltage which is used to power an electronic control. This electronic control, among other things, influences opening and closing of the valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.