Integral enclosure and shield for EMI radiating circuitry
US5323298A · kind A · utility
Inventors
Key dates
| Filing date | Jul 13, 1992 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Jul 13, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An enclosure is constructed of electromagnetic radiation shielding material for housing and supporting circuitry that emits electromagnetic interference. Symmetrical top and bottom covers are fabricated of a generally U-shaped configuration, with a downwardly extending tab on one side region of the upper cover and an upwardly extending tab on an opposite side region of the lower cover, these tabs for covering a butt joint between the upper and lower covers. Symmetrical front and rear covers are each constructed having inwardly extending sides also for covering the butt joints, with a lip on each of these side regions. Slots in these lips support circuit boards in the enclosure. Segmented lips on upper and lower sides of the front and rear covers contact upper and lower regions of the upper and lower covers. Constructed as such, there are no significant gaps in the enclosure to radiate electromagnetic radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.