Material sampling device with rotatable tube assembly
US8171808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Jul 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A material sampling device comprises an auger, a first motor, and a rotatable tube assembly. The auger is configured to extract material from a container. The first motor is configured to rotate the auger. The rotatable tube assembly comprises an outer tube and a second motor. The outer tube is configured to allow the auger to rotate within the outer tube. The outer tube comprises an upper portion configured to remain stationary, and a lower portion configured to rotate. The second motor is configured to rotate the lower portion of the outer tube. In a second embodiment, a material sampling device comprises an auger, and a rotatable tube assembly. The rotatable tube assembly comprises an outer tube comprising an upper portion configured to remain stationary and a lower portion configured to rotate. The auger and the lower portion of the outer tube are configured to rotate simultaneously in opposite directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.