Floor cleaning unit with a brush assembly

US6640386B2 · kind B2 · utility

Assignee

• Hoover Limited · US

Inventors

• Jeffery A. Morgan · Cuyahoga Falls, US
• Douglas E. Gerber · North Canton, US
• Robert W. Hecht · Canton, US
• Charles A. Lang · Hartville, US
• Adam C. Sclafani · Uniontown, US
• Kevin L. Thomas · North Canton, US
• Vincent L. Weber · North Lawrence, US
• Robert S. Wilson · New Philadelphia, US
• Christopher J. Fawcett · Charlotte, US
• Kam Hoi Ma · Mui Wo, CN
• Tak On Yip · Kwai Chung, CN

Key dates

• Filing date: Sep 18, 2001
• Grant date: Nov 4, 2003
• Expiry date: Oct 25, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L5/30
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A floor cleaning device includes a base portion for movement along a surface. The base portion further includes a suction nozzle and a brush assembly driven by a brush motor for agitating the surface. The brush assembly includes a lifting mechanism for moving the brush assembly from a first position wherein the brush is off the surface to a second position wherein the brush assembly is on the surface. A switching assembly is responsive to the brush lifting mechanism to energize the brush motor when the brush assembly is in the second position.