Powder feeding method and apparatus for feeding powders with a fluid with increased precision
US5727607A · kind A · utility
75Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jan 25, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B1/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A powder feeding method includes the steps of injecting a gaseous medium into a powder material held in a hopper from a porous wall forming a funnel at a bottom part of said hopper, such that the injection of the gaseous medium is carried out intermittently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.