Axial fan

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11808271
APP PUB NO 20230072211A1
SERIAL NO

17879491

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is an axial fan including: a rotor blade; a base portion placed on a rotation axis of the rotor blade and on a downstream side in an air-blowing direction of the rotor blade; and an outer frame portion where the rotor blade and the base portion are housed, wherein the base portion includes an inclined portion in an end portion, on the downstream side in the air-blowing direction, of the base portion, the inclined portion reducing in diameter toward the downstream side in the air-blowing direction, the inclined portion includes opening portions and hollow ribs, the opening portions are placed at predetermined intervals in a peripheral direction of the inclined portion, and each of the hollow ribs surrounds a peripheral part on an outer side of each of the opening portions, sticking out from the inclined portion toward the downstream side in the air-blowing direction along the rotation axis.

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First Claim

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Family

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Patent Owner(s)

  • SANYO DENKI CO., LTD.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamazaki, Yoshihisa Tokyo, JP 24 264

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 7, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 May 7, 2031
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Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00