Electrical contact avoidance device
US5296844A · kind A · utility
5Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/182
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrical contact avoidance device comprises an inductor plate directly or capacitively coupled to the user and coupled to a detector circuit which derives a DC signal corresponding to a voltage induced in the user's body by a radiated high voltage electrostatic field. A comparator compares the DC signal with a reference signal representing the potential difference between the inductor and reference plates, and activates an alarm if the detected signal exceeds a preselected reference level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.