Dose system
US6814095B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 7, 2001 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4891
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method for delivering both quick dispensing water treatment materials and slow dispensing water treatment materials from the same dispensing unit by dispensing the slow dispensing water treatment materials over an extended period of time and the quick dispensing water treatment materials in a matter of minutes to allow the container for the quick dispensing water treatment materials to be removed and replaced with either a container containing a different quick dispensing water treatment materials or a container containing a slow dispensing water treatment material and a closed container for holding a quick dispensing water treatment materials therein and for dispensing the quick dispensing water treatment material therefrom through a process of cross circulation between a fluid stream of waster and the quick dispensing water treatment material in the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.