Compression seal for force sensing device
US9829397B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Apr 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/88
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic device includes a seal compressed between a moveable structure and a support. A retainer maintains seal compression in a first direction absent force exerted on the moveable structure. However, the retainer allows increased seal compression by moving in a second, opposing direction when force is exerted on the moveable structure. A force sensor (positioned internal to the seal) is influenced by movement of the moveable structure in response to the force and a signal received from the force sensor indicates an amount of the force. By maintaining the seal in compression but allowing further compression, the seal can hermetically seal the electronic device against contaminant entry without adversely impacting detection of the amount of force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.