System for continuously monitoring the integrity of an electrical contact connection
US5744965A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Sep 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/641
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for monitoring the integrity of electrical connections includes a transformer with its primary coupled across a dual split contact arrangement and the secondary coupled to both an energy source and a monitoring circuit. When the contact condition is made the secondary impedance reaches a given value which results in a low output indicated by the monitoring circuit. The energy source is preferably a radio frequency oscillator driving the transformer secondary, which is also connected to a monitoring circuit. Preferably, the output from a current reference circuit, coupled to the secondary of the transformer, is coupled to the energy source circuit and the monitoring circuit so as to produce a given output in the monitoring circuit when the contact condition is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.