Filter cover waterfall with lighting for a portable spa
US7194774B2 · kind B2 · utility
5Cited by
28References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/401
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plenum chamber mounted to the underside of a filter cover of a portable spa provides a source of constant water flow for a waterfall. The plenum chamber is fed by a line from a water flow system of the portable spa. The plenum chamber has a shaped exit that causes a predetermined waterfall effect. A light source located at the shaped exit lights up the waterfall. Another light source is located in the filter housing to create backdrop lighting for the waterfall. The light sources are preferably fiber optic or arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.