Apparatus for cleaning a swimming pool water filter
US6497814B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jun 18, 2001 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Jun 18, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/1209
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A water pump normally used in a system circulating pool water through a filter cartridge 26 is used to clean the filter cartridge by coupling a 3-way or inline valve 32 and a tee 36 in the piping 12 between the pump 16 and the filter. In a first valve position, the filter housing receives the entire water output from the pump, and in a second position, the entire water output of the pump is diverted to a flexible hose 52 secured to a first water discharge wand 58. A circular ring-shaped manifold 64 with an array of discharge apertures 66 directs streams of water radially outward into the filter cartridge in a direction opposite the normal flow of water for hydraulically flushing debris from the filter cartridge. A second wand with a C-shaped manifold (FIG. 5) is then connected to the hose and used to direct water streams onto the outer periphery of the filter cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.