Magnetic and electric field shielding of computer components from lightning
US3982058A · kind A · utility
14Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1975 |
| Grant date | Sep 21, 1976 |
| Priority date | — |
| Expiry date | May 13, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S174/34
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multilayer cylindrical or rectangular shielding container oriented to pect computer components primarily from magnetic and electromagnetic field disturbances of cloud-to-ground electric lightning strokes is provided. The shielding container is formed of spaced magnetic and nonmagnetic walls. The container preferably is oriented vertically, and leads and cables entering and leaving the container are passed through the top and bottom ends thereof to provide maximum protection from electric fields and from the the predominantly horizontal components of the magnetic field vectors that propagate from such strokes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.