Length-adjustable fan duct device

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices

Reexamination Certificate

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Details

C361S694000, C361S692000, C257S712000

Reexamination Certificate

active

11265401

ABSTRACT:
A fluid guiding device (1) includes a ventilating pipe (10), a barrel (20) and a holding frame (30). The ventilating pipe includes two spring levers (154). A handling tab (156) and an engaging tab (158) extend from a free end of each spring lever, respectively outwardly and inwardly. The barrel forms two jagged members (262) thereon. Each jagged member forms a plurality of parallel teeth (264). The engaging tabs are selectively engaged with corresponding teeth respectively to position the barrel to the ventilating pipe when the barrel is moved to a desired location in the ventilating pipe. The engaging tabs escape from teeth by pulling the handling tabs outwardly to allow the barrel to be movable on the ventilating pipe. The holding frame is secured to the barrel for holding a fluid-driving device thereon.

REFERENCES:
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patent: 5871396 (1999-02-01), Shen
patent: 6657863 (2003-12-01), Lee et al.
patent: 6736196 (2004-05-01), Lai et al.
patent: 6791837 (2004-09-01), Chen et al.
patent: 6871879 (2005-03-01), Gan
patent: 6969234 (2005-11-01), Lin
patent: 7088584 (2006-08-01), Chen
patent: 7100676 (2006-09-01), Li et al.
patent: 7126819 (2006-10-01), Liang
patent: 2006/0023419 (2006-02-01), Kao et al.

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