Controllably feeding powdered or granular material
US7625602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2005 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jun 16, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/448
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for metering powdered or granular material onto a heated surface to vaporize such material. The method comprises providing a rotatable auger d for receiving powdered or granular material and as the rotatable auger rotates, such rotatable auger translates such powdered or granular material along a feed path to a feeding location. The method also providing at least one opening at the feeding location such that the pressure produced by the rotating rotatable auger at the feeding location causes the powdered or granular material to be forced through the opening onto the heated surface in a controllable manner. The material is agitated or fluidized proximate to the feeding location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.