System for indicating fault condition on operator's electrostatic discharge protection equipment
US5519384A · kind A · utility
23Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1993 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for indicating fault condition on operator's electrostatic discharge protection equipment includes for an operator wearing ESD protection equipment comprising: a conductive wrist-strap in electrical contact with the operator's body, and an electrical wiring to a local ground, a portable system to alert the operator when a problem (cut or poor electrical connection) occurs with wiring to the ground, or when an electrical field reaches a predetermined value at the operator's wrist. In one embodiment, the invention also includes a device for memorizing that an ESD event has occurred.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.