Particulate material metering and vaporization
US8062427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jul 21, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C14/246
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Apparatus for metering and vaporizing a particulate material, includes a metering device for metering particulate material including: a reservoir for receiving particulate material; a housing having an internal volume and having first and second openings; a rotatable shaft disposed in the internal volume, the shaft having a smooth surface and a circumferential groove; a structure disposed in the reservoir for delivery and cooperating with the rotating shaft for fluidizing particulate material and transporting it from the reservoir into the groove; the shaft and internal volume cooperating such that particulate material is transported by the groove; a scraper cooperates with the groove to dislodge particulate material retained therein and fluidize the scraped particulate material, and deliver metered amounts of particulate material through the second opening; and a flash evaporator that receives and flash vaporizes the metered particulate material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.