Pressure detector and electronic apparatus having the same
US7958784B2 · kind B2 · utility
3Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K5/0215
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pressure detector configured to detect a predetermined pressure includes a housing having a concave that includes a perforation hole that perforates the housing, a sheet configured to cover the concave and to rupture when placed in an environment of the predetermined pressure or higher, and a semipermeable membrane configured to cover one end of the perforation hole, and to allow air to pass through the semipermeable membrane, the semipermeable membrane being configured to prevent water from passing through the semipermeable membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.