Panasonic Corporation of North America

Matsushita Electric Industrial Co., Ltd.

Matsushita Electric Corporation of America

Matsushita Electric Industrial

Tamaki Nishikori

Ron E Davis

Koichi Ito

Seizo Hayashi

Naoyuki Ohara

Toru Odachi

J Erik Hitzelberger

Tomonori Kato

Hiroshi Hayakawa

Henry Marcussen

Michael J McCormick

Eric J Streciwilk

Kazuhisa Morishita

Richard Eric Downey

Yasuhiro Yuasa

Norihiro Tsuchiya

Hiroshi Nakamoto

Yasuhiro Madokoro

Hiroshi Nishimura

A vacuum cleaner includes an electric blower for generating a suction air stream and a dust collecting unit for collecting dirt particles contained in the suction air stream. The suction air stream passing through the dust collecting unit into the electric blower flows in an approximately linear path. A dust removing unit is provided for removing dirt particles adhered to the dust collecting unit. The dust removing unit is preferably disposed adjacent to a communication hole between the dust collecting chamber and an electric blower chamber.

Vacuum cleaner

An upright vacuum cleaner includes a nozzle assembly, a canister assembly pivotally mounted to said nozzle assembly, a suction fan and drive motor and a biaser. The biaser has a first end that engages the nozzle assembly and a second end that engages the canister assembly. The biaser provides a positive downforce urging the forward end of the nozzle assembly toward the surface being cleaned.

Upright vacuum cleaner with spring loaded nozzle

A bagless vacuum cleaner () includes a nozzle assembly () having a suction nozzle for picking up dirt and debris from a surface to be cleaned and a canister assembly () including a cavity (). A dust collection assembly () is received and held in that cavity (). The dust collection assembly () includes a filtering subassembly () and a dust container (). The dust container () has an open top (), a bottom wall (), a first cylindrical sidewall (), an inlet (), and a downwardly directed outlet () extending through the bottom wall. An airstream conduit is provided for conveying a vacuum airstream between the suction nozzle and the inlet. A suction fan () and suction fan drive motor () carried on either the nozzle assembly () or the canister assembly () generates the vacuum airstream for drawing dirt and debris through the suction nozzle, the airstream conduit and the dust container ().

Airflow system for bagless vacuum cleaner

A bagless vacuum cleaner () includes a nozzle assembly () having a suction nozzle for picking up dirt and debris from a surface to be cleaned and a canister assembly () including a cavity (). A dust collection assembly () is received and held in that cavity (). The dust collection assembly () includes a filtering subassembly () and a dust container (). The dust container () has an open top (), a bottom wall (), a first cylindrical sidewall (), an inlet (), and a downwardly directed outlet () extending through the bottom wall. An airstream conduit is provided for conveying a vacuum airstream between the suction nozzle and the inlet. A filter () is carried on the filtering subassembly (). A sweeper () rotates relative to the filtering subassembly () to clean dirt and debris from at least a portion of the filter (). A suction fan () and suction fan drive motor () carried on either the nozzle assembly () or the canister assembly () generates the vacuum airstream for drawing dirt and debris through the suction nozzle, the airstream conduit and the dust container ().

Cyclonic vacuum cleaner with filter and filter sweeper

An upright vacuum cleaner includes a nozzle assembly, a canister assembly pivotally mounted to said nozzle assembly, a suction fan and motor and a biaser. The biaser has a first end that engages the nozzle assembly and a second end that engages the canister assembly. The biaser provides a positive downforce urging the forward end of the nozzle assembly toward the surface being cleaned.

In the invention, a brush body that is rotated and driven by a motor is disposed in a suction unit and dust is sucked from the suction unit by a blower while exhaust of the blower is sent to the suction unit side through an exhaust passage While the exhaust of the blower is blown to the motor exhaust is blown to the floor for lifting the dust from the floor to enhance the dust collection efficiency, and moreover, if the output of the motor for driving the brush is increased, temperature rise of the motor can be suppressed, and thus durability may be enhanced.

In the invention, a brush body that is rotated and driven by a motor is disposed in a suction unit , and dust is sucked from the suction unit by a blower , while exhaust of the blower is sent to the suction unit side through an exhaust passage . While the exhaust of the blower is blown to the motor exhaust is blown to the floor for lifting the dust from the floor to enhance the dust collection efficiency, and moreover, if the output of the motor for driving the brush is increased, temperature rise of the motor can be suppressed, and thus durability may be enhanced.

Growing community of inventors

Kusatsu, Japan

Tamaki Nishikori