Shelf unit for electronic communication devices
US4447856A · kind A · utility
30Cited by
6References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1981 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Oct 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/903
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Electronic communication device shelf units for packing therein printed circuit boards wherein the shelf units are to be put one upon another in a cabinet, wherein each said shelf unit comprises hollow side plates provided with air inlet openings on their outer faces, and a top plate which is connected to the side plates and having a V-shaped heat diffusion plate defining thereon an air introduction space; the side plates are provided, on their inner faces, with openings communicating with the air introduction space, such that hot air diffusion for each shelf unit is independent of the other shelf units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.