Encased pool chemical tablet with domed ends
US4876003A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | May 9, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/42
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A chlorine compound containing chemical tablet for dissolution into a surrounding body of water which includes an elongate tablet with length longer than thickness having an elongate central section connecting two opposing obliquely tapered ends along a longitudinal axis and an elongate tablet shell encasing the tablet having a corresponding elongate central section connecting two opposing obliquely tapered ends. The ends of the shell have openings therein and form an inwardly sloping and obliquely angled junction with the shell's elongate central section. The encased tablet lies in a skimmer unit on its side along a longitudinal axis and dissolves in a generally uniform and slow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.