Duct and electronic apparatus having the duct

Details Duct and electronic apparatus having the duct Duct and electronic apparatus having the duct

2005-01-18

2005-01-18

Brinson, Patrick (Department: 3752)

Pipes and tubular conduits

Flexible

Braided, interlaced, knitted or woven

C138S145000, C138S146000, C138S172000, C138SDIG007, C428S036200

Reexamination Certificate

active

06843277

ABSTRACT:
The invention provides a duct with high sound absorbing effect and sufficient exhausting efficiency, as well as an electronic apparatus having the duct. The duct can include a hollow duct body, an inflated section arranged at an intermediate part of a passage of the duct body, and a sponge bonded on internal surfaces of the duct body and the inflated section. The duct body and the inflated section can have a thickness of 0.25 mm and be formed of a sheet member of paper impregnated with polymethylpentene on the surface thereof. The duct body can also include an intake-port side duct body and an exhaust-port side duct body, which are connected together at an angle of 90° therebetween. Further, a fan can be connected to an intake port of the intake-port side duct body201. The inflated section can be arranged in the side of the intake port, and the cross-sectional area of the inflated section can be 1.8 times that of the duct body.

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