Biodegradable surface layer film for pools or spas to prevent evaporation and heat loss
US7763178B2 · kind B2 · utility
1Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jan 24, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/42
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to swimming pools and other pools of standing water, and in particular to a dispensing unit that distributes a chemical solution that reduces evaporation and heat loss by forming a film or monomolecular layer over the surface or substantial surface area of the swimming pool or water pond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.