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.

Date of Patent:
May. 23, 2006

Filed:

Aug. 08, 2002
Applicants:

Hidenori Kitamura, Shiga, JP;

Saburo Kajikawa, Kusatsu, JP;

Masakazu Onda, Yokaichi, JP;

Seiji Ishikawa, Yokaichi, JP;

Yasunori Tsuzaki, Yokaichi, JP;

Masashi Okushima, Yokaichi, JP;

Tetsuharu Nomachi, Yokaichi, JP;

Koji Yamamura, Yokaichi, JP;

Hirokazu Nagaoka, Yokaichi, JP;

Inventors:

Hidenori Kitamura, Shiga, JP;

Saburo Kajikawa, Kusatsu, JP;

Masakazu Onda, Yokaichi, JP;

Seiji Ishikawa, Yokaichi, JP;

Yasunori Tsuzaki, Yokaichi, JP;

Masashi Okushima, Yokaichi, JP;

Tetsuharu Nomachi, Yokaichi, JP;

Koji Yamamura, Yokaichi, JP;

Hirokazu Nagaoka, Yokaichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vacuum cleaner includes a main body having an electric blower for generating a suction air flow, a dirt collecting case for centrifugally separating and collecting dirt, and a compression assembly for compressing dirt collected in the dirt collecting case to reduce a volume thereof. The dirt collecting case has a separation chamber for centrifugally separating dirt from the dirt containing air and a dirt collecting chamber in communication with the separation chamber for accumulating the dirt separated by the separation chamber. The compression assembly has a first air intake member provided in the separation chamber and communicating with the electric blower, a second air intake member provided in the dirt collecting chamber and communicating with the electric blower, a shielding plate for selectively opening the first and the second air intake member and an actuator for driving the shielding plate.


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