Dial humidity indicator for containers
US4050307A · kind A · utility
6Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1975 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Sep 3, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N19/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dial humidity indicator for containers utilizes a shock mounted sensing chanism having an expansible tensioned sorption element, and a pressure-tight, window-type plug to position the indicator in the container wall. The present device, when mounted in the wall of an hermetically sealed shipping container, provides rapid, accurate and continuous readings of relative humidity at the extremes of relative humidity and temperature under severe shock and vibration conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.