Low configuration keyboard
US5525979A · kind A · utility
13Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Aug 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2233/016
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low-profile keyboard (5) each switch (3) having a dished keybutton (3) held upward by a rubber dome (49) and having ribs (55) which depress extension (43 and 31) which carry electrical traces (45 and 33) to activate the switch. The assembly is mounted on post (15). A lower recess (21) permits excess travel to a quiet stop. The rubber sheet (47) provides spill resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.