Method and apparatus for preventing injury to an electronic computer keyboard operator
US5676476A · kind A · utility
17Cited by
16References
1Claims
0Family size
Inventor
Key dates
| Filing date | Dec 14, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Dec 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2235/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The keystroke resistance and keystroke length of an electronic QWERTY style keyboard for personal computers and other electronic devices are increased to at least one hundred grams and ten millimeters, respectively, to reduce the incidence of carpal tunnel syndrome and other injuries associated with repetitive movements in long term keyboard operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.