Compact scroll fan assembly

A radial fan assembly (18,20,30) for use in a powered air purifying respirator (10) includes at least an impeller (36), a printed circuit board (31) and a scroll casing (22). The scroll casing has a first (34) and a second (31) scroll casing element. The second scroll casing clement includes at leas...

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Bibliographische Detailangaben
Hauptverfasser:	MCLAUGHLIN, KEITH K, HAGEN, RONALD A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYCLE AXLE SUSPENSIONS CYCLE FRAMES CYCLE SIDE-CARS, FORECARS, OR THE LIKE CYCLE STEERING DEVICES CYCLES DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FIRE-FIGHTING HEATING HUMAN NECESSITIES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIFE-SAVING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES TRANSPORTING WEAPONS
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