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 7172387 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 06, 2007

Filed:

Nov. 07, 2003
Applicants:

Jiro Yamamoto, Sakai, JP;

Zhiming Zheng, Sakai, JP;

Inventors:

Jiro Yamamoto, Sakai, JP;

Zhiming Zheng, Sakai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fan guard includes a plurality of extending ribs extending from a blocking plate to an outer frame, a plurality of inner ribs arranged between the extending ribs and extending from the blocking plate to the substantial center in the radial direction, and a plurality of outer ribs arranged between the extending ribs and extending from the substantial center in the radial direction to the outer frame. The number of the inner ribs is set smaller than the number of the outer ribs. Hence, strength to prevent bending of the fan guard due to load application in the axial direction is ensured and increase in ventilating resistance of forced airflow (W) from a blower fan is suppressed.


Find Patent Forward Citations

Yamamoto, Jiro. (2007). Fan guard for blower unit (U.S. Patent No. 7172387). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7172387

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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