Method for removing scale causing chemicals in hot water systems
US7001524B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2003 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Jul 3, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion exchange and reverse osmosis water softeners eliminate scale buildup in pipes, but are expensive. This invention is a means of keeping the scale precipitate, created when water is heated, inside the water heater by passing the hot water through a removal medium where the scale sticks to the surface. The removal medium can be placed inside the water heater or in a separate tank connected to the water heater; both configurations remove the precipitate from hot water; both save hot water pipes from scale accumulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.