Switch probe
US5225773A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/06722
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A switch probe, generally for use in testing cable harnesses, is for placement within a standard probe receptacle and can be removed and replaced as necessary. The switch probe includes a conductive barrel with a front open end and a rear closed end. A conductive first switch portion is received within the barrel at the rear closed end and includes a first shaft projecting forwardly. A conductive second switch portion is received within the barrel and has an engagement tip positioned forwardly of the barrel open end for electrical contact with a test site. A second shaft extends rearwardly and into axially spaced relation to the first shaft. An elongate hollow insulator extends fully between and provides a guideway for reciprocatory contact between the first and second shafts and fully shields the second shaft from electrical leakage prior to conductive contact of the second shaft with the first shaft. When the first and second shafts contact each other, the current path is closed and electrical current now flows from the receptacle through the barrel and into the second shaft to the test site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.