Apparatus and methods for storing and dispensing solid material
US7614429B2 · kind B2 · utility
25Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2005 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Oct 26, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/049
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is directed to a dispensing unit suitable to precisely dispense material in powdery and/or granular form. The dispensing device comprises an gate valve opening sealingly closed by a blend. A control unit, which is interconnected to a scaling device, controls the opening of the gate valve opening by the position of the blend. The precise amount of the material is adjusted in relation to the signal of the scaling device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.