Key device and multi-legged supporting balance bar structure thereof
US9899157B1 · kind B1 · utility
2Cited by
1References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Dec 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H3/125
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key device includes a base plate, a key cap and at least one balance bar. The at least one balance bar is with a tabular body and is disposed between the base plate and the key cap. The at least one balance bar has an elongated rod and a plurality of supporting legs connected to the elongated rod and protruded from a lower edge of the elongated rod. The elongated rod is connected to the key cap. The plurality of supporting legs is connected to the base plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.