AIR BLOWING PORT DEVICE OF VENTILATION AND AIR CONDITIONING DEVICE

PURPOSE:To prevent occurrence of air blowing sound, eliminate any noisy sound and provide a silent sound by a method wherein a wall thickness part at an inner circumference of a cylinder part is provided with a curved line inner surface contacting along an outer circumference of a damper in the same...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	TSUKADA SEIICHI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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