Ventilation Duct

Abstract 10 A ventilation duct 10, the duct 10 comprising a substantially rigid, elongate tube section 12 moulded from plastics material and having a tube wall 14 comprising a plurality of layers. At least one of the layers comprises an intumescent material which acts as a fire retardant in the even...

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Bibliographische Detailangaben
1. Verfasser:	Durkin, Steven Peter
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING EARTH DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING RANGES SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	Abstract 10 A ventilation duct 10, the duct 10 comprising a substantially rigid, elongate tube section 12 moulded from plastics material and having a tube wall 14 comprising a plurality of layers. At least one of the layers comprises an intumescent material which acts as a fire retardant in the event of exposure to extreme heat. Figure to accompany drawings: Figure 3 d 0' --- -- -r I--