Automatic device for opening and closing the cover vents

The present invention relates to an automatic cover opening and closing device for overpressure, capable of opening a cover through overpressure by setting pressure, able to protect a building, to prevent damage to high-priced machine or facilities, caused by the expansion of pressure, when a fire i...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	YU, BYONG KYU
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING FIRE-FIGHTING HEATING HUMAN NECESSITIES LIFE-SAVING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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