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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9869324 B1

PDFFull Text
Date of Patent:
Jan. 16, 2018

Filed:

Sep. 18, 2015

Fan, molding die, and fluid feeder

Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, JP;

Inventors:

Yukishige Shiraichi, Osaka, JP;

Masaki Ohtsuka, Osaka, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Osaka-shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Ninh H Nguyen

Int. Cl.
CPC ...
F04D 29/24 (2006.01); F04D 29/28 (2006.01); F04D 29/26 (2006.01); F04D 29/38 (2006.01); F04D 29/30 (2006.01); F04D 17/04 (2006.01); F04D 29/66 (2006.01); B29C 45/26 (2006.01); F04D 17/10 (2006.01); F04D 25/02 (2006.01); F04D 29/42 (2006.01); F04D 17/08 (2006.01); B29L 31/08 (2006.01);
U.S. Cl.
CPC ...
F04D 29/281 (2013.01); B29C 45/26 (2013.01); F04D 17/04 (2013.01); F04D 17/08 (2013.01); F04D 17/10 (2013.01); F04D 25/02 (2013.01); F04D 29/26 (2013.01); F04D 29/282 (2013.01); F04D 29/30 (2013.01); F04D 29/384 (2013.01); F04D 29/4226 (2013.01); F04D 29/666 (2013.01); B29L 2031/08 (2013.01); F04D 29/283 (2013.01); F05D 2240/301 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01); F05D 2240/305 (2013.01); F05D 2240/306 (2013.01); F05D 2250/711 (2013.01); F05D 2250/712 (2013.01); F05D 2250/713 (2013.01);
Abstract

A fan includes a plurality of blade portions arranged spaced apart from each other in a circumferential direction, each blade portion having a blade surface including a pressure surface disposed on a rotational direction side of the fan and a suction surface disposed on a back side of said pressure surface. The plurality of the blade portions include a first blade portion and a second blade portion in which when they are rotated around the rotation axis of the fan and overlapped on one blade portion, one of an inner edge portion and an outer edge portion is disposed to be coincident with each other, and the other of the inner edge portion and the outer edge portion is disposed to be displaced from each other.

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