Fiber micronaire measuring apparatus and method
US5359880A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Sep 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A micronaire testing apparatus includes a vertically movable carriage for receiving a test chamber formed by two telescoping cylinders. A scale is positioned below the carriage so that the chamber may be automatically weighed. Based on the weight information recorded for a sample, cylinders are telescoped together to produce an air flow test chamber of volume calculated to produce a constant density sample. A pivoting lid is used to close the top of the test chamber, and is spring biased to the open position. A latch bar is biased to a position firmly holding the lid in its closed position, and the carriage presses the test chamber against the lid to produce a peripheral seal of the lid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.