IDiyas

For the Inventor, By the Inventor

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 9885364 B1

PDFFull Text
Date of Patent:
Feb. 06, 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, JP;

Attorney:

Birch, Stewart Kolasch & Birch, LLP.

Primary Examiner:

Ninh H Nguyen

Int. Cl.
CPC ...
F04D 17/04 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (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 29/282 (2013.01); F04D 29/30 (2013.01); F04D 29/4226 (2013.01); F04D 29/666 (2013.01); B29L 2031/08 (2013.01); F04D 29/283 (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 the pressure surface. The plurality of blade portions include a first blade portion and a second blade portion different from each other in at least one of an outer peripheral blade tip angle and an inner peripheral blade tip angle, and are provided such that a discrepancy angle is equal among a plurality of the blade portion.

Find Patent Forward Citations

Loading…