Ventilation – Electronic cabinet
Patent
1999-03-18
2000-11-07
Joyce, Harold
Ventilation
Electronic cabinet
165 803, 165122, 361691, H05K 720
Patent
active
061428663
ABSTRACT:
An air circulation control apparatus and method for a system such as a Base Transmission (or Transceiver) System (BTS) provides a control of an ambient air flow between inside and outside of the system. The apparatus includes at least one controller, such as a fan, and a member along an air flow path of the system. The member may be moveably mounted on the inside wall of the system. The controller operates in a forcing mode or a drawing mode to open or close the member so as to allow or not allow the air flow between inside and outside of the system.
REFERENCES:
patent: 5544012 (1996-08-01), Koike
patent: 5559673 (1996-09-01), Gagnon et al.
patent: 5793610 (1998-08-01), Schmitt et al.
patent: 5890959 (1999-08-01), Pettit et al.
Joyce Harold
Nokia Telecommunications OY
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