Surface mounted electrical switch and probe structure
US5220274A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Apr 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/06788
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrical switch usable in an electrical test probe has electrical contact pads formed on a substrate acting as fixed electrical switch contacts. A frame member is laterally disposed from the fixed electrical switch contacts. An actuator is disposed within the frame member having a movable switch pole contact extending from the actuator past the frame member for wipingly engaging the fixed electrical contacts on the substrate as the actuator is moved between first and second switch positions. For use in a switchable passive voltage probe, the electrical switch is formed on a circuit board that is disposed in an electrically conductive tubular body. Insulating material surrounds the fixed switch contacts on the circuit board to electrically isolate the contacts from the tubular body. The switch pole contact reaches into the electrically isolated region to perform the switching function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.