Automatic faucet-sink control system
US4823414A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1988 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Apr 22, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An automatically controlled faucet-sink system having a fluid dispensing faucet with a sink disposed below that faucet, is controlled by means of a light source-photosensor pair juxtapositioned within a housing mounted on or near the back of the sink so that the light beam and cone of vision of the photosensor are focused at a point intersecting the path of fluid flow from the faucet. Electrical circuitry and valve apparatus are provided which actuate and then cut-off the flow of fluid from the faucet in response to an object under the faucet reflecting light from the light source to the photosensor. Circuitry is also provided for terminating the flow of fluid from the faucet to the sink after a predetermined period has timed out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.