Powder feeding apparatus and method thereof
US10988305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/226
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powder feeding apparatus drops powder from a tank storing the powder to an oblique portion, and accumulates the powder on a plate disposed below the oblique portion. The plate is provided with a flat surface portion and a groove portion which is inverted from the flat surface portion to a lower part. The scraper moves powder which has accumulated to a higher level than a constant height on the flat portion and the groove portion, to an outer-side of the flat portion and smoothes the powder on the flat portion and the groove portion to a constant height. An ejector takes in powder which has accumulated on the groove portion of the plate by a suction opening, disposed at a front side of the scraper, in a relative moving direction of the plate, and discharges the powder from the discharge opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.