Retaining internal pressure in a data storage device in a vacuum
US11105703B2 · kind B2 · utility
1Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Nov 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus includes a test chamber and a pressure-application structure. The pressure-application structure is configured to apply a force on a device under test within the test chamber in response to a vacuum being drawn in the test chamber. The force has a magnitude that is proportional to a difference between an external pressure outside the test chamber and an internal pressure within the test chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.