Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1983-03-21
1985-01-22
Eisenzopf, Reinhard J.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
H05K 720
Patent
active
044955456
ABSTRACT:
An enclosure for electrical equipment is arranged in sections, typically vertical and with an equipment mounting section at the front and an air passage section at the rear. Air is constantly circulated through the two sections, in a closed loop, to maintain an even temperature and avoid hotspots in the enclosure. At the top, one or more fans are positioned over each section, and an air inlet and an air outlet are provided. A pivotal baffle has two positions. In one it shuts off access to the inlet and outlet and permits the closed circulation of air. In the other position it shuts off circulation between sections at one end and opens access to the inlet and outlet, giving an air circulation from the inlet, through the sections and out of the outlet. An additional fan can be switched on for the latter form of circulation.
REFERENCES:
patent: 2459322 (1949-01-01), Johnston
patent: 2610567 (1952-09-01), Davis
patent: 2927736 (1960-03-01), Rohatyn
patent: 3015217 (1962-01-01), Beemer et al.
patent: 3253646 (1966-05-01), Koltuniak et al.
patent: 3951336 (1976-04-01), Miller et al.
Campbell Alexander F.
Campbell David
Devlin George V.
Dufresne Gilles L.
Eisenzopf Reinhard J.
Jelly Sidney T.
Northern Telecom Limited
Thompson Gregory D.
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