Apparatus and method for online or offline measurement of vapor transmission through sheet materials
US6009743A · kind A · utility
47Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Aug 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring and comparing the permeant transmission rate through film material on a moving conveyor, including a first and second chamber through which the film material is moved, a permeant supply to the first chamber and a permeant detector connected to the second chamber. A computer processor is connected to the detector to quantify the detected amounts of permeant and to compare the detected permeant amounts with similar amounts detected for a different material sample, and for determining the permeant transmission rate characteristics of the film material by such comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.