Method and device for determining the compression factor of powders
US6711962B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Jan 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method to determine the compression factor of powders for processing by roller presses with a roller diameter of 100-400 mm. A rotating press-roller (2), a matrix (4) and a piston (11) for measurement of the compression factor are used in the inventive method. The device to carry out the inventive method consists of a rotating press-roller (2) which is connected to a groove (5) in a displaceable matrix (4) and a piston (11) connected to a ruler (17) and a pointer (15) by means of a guide element (12) and a guide rod (13), whereby the depth of the groove is greater than the 20° angle tangent on the press-roller (2) when measured from the horizontal center axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.