Powdery-material feeding device
US10632482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Feb 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B11/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powdery-material feeding device includes a hopper configured to reserve a powdery material, a transfer member configured to deliver and to discharge the powdery material fed from the hopper, a motor configured to drive the transfer member, a measuring instrument configured to measure a discharge amount of a powdery material delivered to be discharged by the transfer member, and a controller configured to control, while control according to the discharge amount of the powdery material measured by the measuring instrument is not conducted, a current applied to a coil of the motor to have a substantially constant amount, to control the discharge amount of the powdery material delivered to be discharged by the transfer member to have a required amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.