Systems and methods for measuring a particulate material
US9031424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | May 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/085
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for measuring a particulate material according to one example embodiment includes a container having a reservoir for storing the particulate material. A rotatable shaft is positioned within the reservoir. A paddle is mounted on the shaft and rotatable independent of the shaft. A driving member is rotatable with the shaft and positioned to push the paddle when the shaft rotates. The paddle is free to fall ahead of the driving member. At least one sensor is positioned to sense a rotational motion of the paddle as the shaft rotates. A processor in electronic communication with the at least one sensor is configured to determine an amount of the particulate material remaining in the reservoir based on the sensed rotational motion of the paddle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.