Device for providing a relatively constant rate of dissolution of a solid article within it
US8142731B2 · kind B2 · utility
0Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Mar 6, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/4445
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for providing a relatively constant rate of dissolution of a solid article (2) within it has one or more opening (22) to allow the passage of water. There is a flow pathway between said one or more openings and the solid article, which flow pathway is obturated by a water-permeable packing (26), through which water must pass, in entering or leaving the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.