Gas assisted flow tube and filling device
US6668874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/66
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which permits the gas to flow through the particulate material and out a vent screen so that the particulate material is permitted to flow out of the fluidizing chamber essentially free of gas and wherein the pressure of the gas delivered to the fluidizing chamber is sufficient to provide a gas bearing to said particulate material adjacent the distributor plate, but not high enough to cause turbulence in said fluidizing chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.