US2005106003A1PendingUtilityA1

Structure for a backup fan

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Assignee: TATUNG CO LTDPriority: Nov 14, 2003Filed: Jun 21, 2004Published: May 19, 2005
Est. expiryNov 14, 2023(expired)· nominal 20-yr term from priority
Inventors:Wen Fang
F04D 29/601
40
PatentIndex Score
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Cited by
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References
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Claims

Abstract

An improved structure for a backup fan includes a containment case comprising a top opening and at least one containment space, each containment space has a front-side ventilation opening and a back-side ventilation opening; at least one first fan capable of being positioned in the containment space of the containment case through the top opening of the containment case; at least one second fan capable of being positioned in the containment space of the containment case through the top opening of the containment case, the second fan and the first fan placed tightly next to each other; and a top cover for covering the top opening of the containment case.

Claims

exact text as granted — not AI-modified
1 . An improved structure for a backup fan comprising: 
 a containment case comprising a top opening and at least one containment space, each containment space has a front-side ventilation opening and a back-side ventilation opening;    at least one first fan capable of being positioned in the containment space of the containment case through the top opening of the containment case;    at least one second fan capable of being positioned in the containment space of the containment case through the top opening of the containment case, the second fan and the first fan placed tightly next to each other; and    a top cover for covering the top opening of the containment case.    
   
   
       2 . The improved structure as claimed in  claim 1 , wherein the containment case further comprises a slot and a stay ring, the top cover comprising a pin and a fastening plug, the pin of the top cover capable of inserting into the slot of the containment case, and the fastening plug of the top cover capable of being fastened in the stay ring of the containment case.  
   
   
       3 . The improved structure as claimed in  claim 1 , wherein there is one containment space, one first fan and one second fan.  
   
   
       4 . The improved structure as claimed in  claim 1 , wherein there are two containment spaces, two first fans and two second fans.

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