Control for a sanitary fixture
US5651384A · kind A · utility
68Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1996 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86389
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An infrared proximity sensing circuit for use with sanitary fixtures to control water flow can have an ambient light proximity sensor which can control the period at which the circuit and the sensor are activated or the amplitude of the transmitted infrared power to conserve battery power when the circuit is a battery powered one. The ambient light sensor detects the ambient brightness and the time period of the circuit and the proximity sensor is changed upon the detected ambient brightness falling below the threshold brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.