Ducted fan (super-quiet)

Abstract

1. The name of the design product: duct fan (super-silence). 2. The use of the design product: for ventilation. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 combination use state reference drawing. 5. Design 1 component 2 rear view is symmetrical with design 1 component 2 front view, omit design 1 component 2 rear view; design 1 component 2 left view is symmetrical with design 1 component 2 right view, omit design 1 component 2 left view; design 2 component 2 rear view is symmetrical with design 2 component 2 front view, omit design 2 component 2 rear view; design 2 component 2 left view is symmetrical with design 2 component 2 right view, omit design 2 component 2 left view; design 2 component 2 top view is symmetrical with design 2 component 2 bottom view, omit design 2 component 2 top view; design 2 component 3 front, rear, left, right, bottom and top views are the same as design 1 component 3 front, rear, left, right, bottom and top views, omit design 2 component 3 front, rear, left, right, bottom and top views. 6. Design 1 is designated as the basic design.

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