Electrolytic pool purifier
US4992156A · kind A · utility
Inventor
Key dates
| Filing date | Aug 18, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Aug 18, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/04
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A submerged pool purifier which has a cell including an immersed enclosure (20) to which a number of electrodes (28) are disposed in parallel array along with a masking grid (29) on each electrode. Wires (30) are routed inside existing pool piping connected to opposed electrodes on one end and a power supply (58) to the other. The wires immerge from the pool piping at a convenient location and the egress is interfaced with a compression fitting (36) making the connection watertight. The power supply changes AC electrical power to DC and a polarity reversing timer (60) reverses the polarity at regular intervals to the cell eliminating scale deposits. The DC current to the electrodes that are submerged in pool water containing dilute halite salt cause an electrolytic action ultimately producing nascent oxygen and sodium hypochlorite. In a second embodiment, the electrodes utilize a copper-silver alloy creating copper and silver ions for pool purification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.