Chemical feeder device
US4548227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4891
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A chemical feeder device for treatment of influent liquid and designed for relatively free maintenance being free of moving parts and including a head member to be disposed in a liquid supply line, a vessel detachably connected to the head member and a disposable, replaceable chemical feeder cartridge also attached to the head member and disposed inside the vessel, the cartridge being a unitary structure including pre-inserted chemical material, built-in capillaries, an inlet check valve. The device is designed to feed a concentrated chemical solution into a stream of flowing liquid at a constant, very low resulting chemical concentration independent of liquid pressure, flow rate and interruptions in flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.