Button-key/cylindrical-key alphabetizer
US6157323A · kind A · utility
132Cited by
12References
18Claims
0Family size
Inventors
Key dates
| Filing date | Feb 25, 1999 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Feb 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multiple input key for inputting characters and the key has a body with a top and bottom surface, with the bottom surface being proximal to a printed circuit board and the top surface being distal from the printed circuit board. The key is pivotable about a pivot. A pivot extends from the bottom surface of the body and has an electrical contact pad such that when the contact pad contacts one of the leads on the printed circuit board a circuit is closed. A skirt surrounds the periphery of the body of the key and the skirt operatively supports the body of the key on the printed circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.