Portable electrostatic field safety monitor
US4714915A · kind A · utility
33Cited by
3References
12Claims
0Family size
Inventors
Key dates
| Filing date | Sep 29, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | Sep 29, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/182
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable monitoring system for detecting a radiated electrostatic field and producing an audible warning when the detected field exceeds a selected value is characterized by a switching device which can be used to reset the threshold warning level and which is not affected by the hand proximity effect. An alarm is sounded when a signal corresponding to the detected field exceeds a value which is stored. The stored value can be reset by a manually operated switching circuit including a delay device operable to delay the storage of a reference level corresponding to the intensity of the field currently detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.