VACUUM CLEANER

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090133212A1
SERIAL NO

12294432

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vacuum cleaner includes an electric blower that sucks dust through a suction connecting port, a first dust separating unit for separating the dust and air sucked into the suction connecting port from each other, and a pleat filter for separating the dust and air passing through a first dust separating unit. The vacuum cleaner further includes an external-air introducing air passage for introducing external air toward an upstream side of the pleat filter, a rotational fan for dropping off dust adhering to the pleat filter by the introduced external air, and a return air passage for returning the dust dropped off from the rotating fan toward the upstream side of the first dust separating unit by the introduced external air.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBA1-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 1058001 ?1058001
TOSHIBA HOME APPLIANCES CORPORATION2-15 SOTOKANDA 2-CHOME CHIYODA-KU TOKYO
TOSHIBA CONSUMER ELECTRONICS HOLDINGS CORPORATIONTOKYO 101-0021

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsushita, Hirokazu Tokyo, JP 15 132
Morishita, Atsushi Tokyo, JP 41 291
Takemoto, Ritsuo Tokyo, JP 8 200
Tsuchiya, Yoshihiro Tokyo, JP 178 2504

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