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 8443486 B1

PDF
Full Text
Expired
Date of Patent:
May. 21, 2013

Filed:

Jul. 17, 2008
Applicants:

Izumi Yamaura, Hyogo, JP;

Koichi Nakano, Osaka, JP;

Tetsuya Kouda, Osaka, JP;

Katsuyuki Oota, Shiga, JP;

Inventors:

Izumi Yamaura, Hyogo, JP;

Koichi Nakano, Osaka, JP;

Tetsuya Kouda, Osaka, JP;

Katsuyuki Oota, Shiga, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vacuum cleaner includes an electric air blower; a dust separator placed at an upstream side of the electric air blower and having a filtration filter for taking in dust-containing air sucked by the electric air blower and separating the dust from the air; and a dust accommodating section for accommodating the dust separated by the dust separator. The filtration filter includes a plurality of through-holes penetrating from an upstream surface at an upstream side to a downstream surface at the downstream side, and a central axis of the through-hole is inclined with respect to a normal line direction of a surface of the filtration filter.


Find Patent Forward Citations

Yamaura, Izumi. (2013). Electric vacuum cleaner (U.S. Patent No. 8443486). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8443486

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