Title:
DEVICE AND METHOD TO MEASURE BULK UNCONFINED YIELD STRENGTH OF POWDERS USING MINIMAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/028387
Kind Code:
A3
Abstract:
A method bulk strength of powders uses acceleration forces to compact the powder into a small conical test cell that is rotated at high speed. Once the material is consolidated to a prescribed condition, the rotation is stopped, the outlet of the cell is exposed, and the cell is rotated again at increasing acceleration until material freely exits the cell. The forces generated on the powder in the cell are determined and used to compute the cohesive strength of the bulk material.
Inventors:
JOHANSON KERRY (US)
Application Number:
PCT/US2010/045265
Publication Date:
June 30, 2011
Filing Date:
August 12, 2010
Export Citation:
Assignee:
JOHANSON HOLDINGS LLC (US)
JOHANSON KERRY (US)
JOHANSON KERRY (US)
International Classes:
G01N11/04; G01L1/00; G01N9/30
Foreign References:
| US5847294A | 1998-12-08 | |||
| US5109717A | 1992-05-05 | |||
| US20070107540A1 | 2007-05-17 | |||
| US5117699A | 1992-06-02 |
Other References:
See also references of EP 2470879A4
Attorney, Agent or Firm:
HANSON, Sven, W. (Gainesville, FL, US)
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