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.:
Date of Patent:
Feb. 12, 2002
Filed:
Jul. 06, 1999
Tomonori Kato, Shiga, JP;
Tamaki Nishikori, Shiga, JP;
Hiroshi Hayakawa, Shiga, JP;
Naoyuki Ohara, Shiga, JP;
Koichi Ito, Shiga, JP;
Toru Odachi, Shiga, JP;
Seizo Hayashi, Shiga, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
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.