Brush-sieve powder fluidizing apparatus for nano-size and ultra fine powders
US10722910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | May 22, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B1/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Powder fluidizing apparatus includes a unitary pressure vessel having a powder compartment and a transfer compartment, a lid on a first open end of the powder compartment and a base on a second end of the unitary pressure vessel, the second end sealing an open end of the transfer compartment. A plate separates the powder compartment from the transfer compartment, the plate being located between the lid and the base. A coupling collar secures a sieve disk packet in an opening in the plate. A tube extends from the transfer compartment to the powder compartment, the tube extending to a location near the lid of the unitary pressure vessel. When the transfer compartment is pressurized with a carrier gas, pressure in the transfer compartment and pressure in the powder compartment are equalized by the tube. The unitary pressure vessel is configured to contain the carrier gas in both the powder compartment and the transfer compartment and simultaneously perform as a reservoir for holding a quantity of powder in the powder compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.