US Patent 8133009 Centrifugal fan
Patent 8133009 was granted and assigned to Umoe Mandal on March, 2012 by the United States Patent and Trademark Office.
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Patent abstract
An impeller device (10) for centrifugal fans (1), having comprising a center wheel (40), at least one side disc (20, 30) and fan blades (50). The center wheel (40) and the side disc(s) (20, 30) are equipped with attachment devices (24, 44) for attaching the blades and the center wheel's (40) attachment device (44) comprises a protrusion (45) extending substantially in the center wheel's radial direction and arranged to abut against the second side end (54) in the fan blades (50).
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Patent Inventor Names
Tormod Salvesen0
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US Patent 08133009 Centrifugal fan US Patent 8133009 Centrifugal fan
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Patent Number
08133009
Patent Number
8133009
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US Patent 08133009 Centrifugal fan
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Is a
Current assignee
Patent jurisdiction
Patent number
08133009
Date of patent
March 13, 2012
Patent application number
12064817
Date Filed
September 27, 2006
Patent primary examiner
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