Axial flow fan

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7585155
APP PUB NO 20050207894A1
SERIAL NO

11081082

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Blades mounted on a circumferential outer surface of a hub of an axial flow fan do not deform even when rotated at high speed, thus promoting structural stability. The direction of the sweeping angle of each blade alternately changes between the blade root and tip. A chord length between the blade leading and trailing edges gradually decreases from the blade root to an intermediate portion of the blade, and the chord length gradually increases from a predetermined position on the intermediate portion of the blade to the blade tip.

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Patent Owner(s)

Patent OwnerAddress
HANON SYSTEMS95 SINILSEO-RO DAEDEOK-GU DAEJEON 34325 34325

International Classification(s)

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  • 2005 Application Filing Year
  • F04D Class
  • 345 Applications Filed
  • 154 Patents Issued To-Date
  • 44.64 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200520062007200820092010201120122013201420152016201720180255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Kyung-seok Daejeon-si , KR 4 85
Park, Se-Young Daejeon-si , KR 10 105

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Patent Citation Ranking

  • 8 Citation Count
  • F04D Class
  • 7.22 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1311041861101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6005101520253035404550556065707580859095100105110115120

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