Keypads
US5704467A · kind A · utility
11Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Oct 19, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keypad is provided wherein the keys are sealingly mounted in keyholes provided in a housing by means of a key mount which centers each key and seals the space between each key and the edge of its keyhole. The key mount also provides an electrical contact which is brought into engagement with underlying circuitry in response to depression of a key. The key mount also resiliently mounts the key within the keyhole so after depression of the key the key mount returns the key to its initial position in which the contact is spaced from the circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.