Night light for plumbing fixtures
US6805458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A showerhead (802, 804) or faucet (12, 602, 702) includes a water outlet (16, 606, 706, 802) for emitting a water flow (22, 610, 710) and a handle (18, 20, 604, 704, 830) for controlling the water flow (22, 610, 770). At least one LED (42, 242, 342, 442, 542, 544, 546, 624, 658, 730, 810) is arranged on or in the showerhead (802, 804) or faucet (12, 602, 702) and viewable by an associated user thereof. A light-transmissive encapsulant (630, 660, 732) seals the at least one LED (42, 242, 342, 442, 542, 544, 546, 624, 658, 730, 810) and transmits light produced by the at least one LED (42, 242, 342, 442, 542, 544, 546, 624, 658, 730, 810) to the associated user. A controller (550) produces a controller output for controlling the LED light emission responsive to at least one of a water flow rate, a water flow temperature, an ambient light level, and a position of the handle (18, 20, 604, 704, 830). The at least one LED (42, 242, 342, 442, 542, 544, 546, 624, 658, 730, 810) is can be arranged on a printed circuit board (626, 656) and electrically powered via conductive traces thereon, in which case the light-transmissive encapsulant (630, 660, 732) seals the LED source and the conducti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.