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:
Dec. 18, 2018
Filed:
Apr. 22, 2015
Toshiba Lifestyle Products & Services Corporation, Kawasaki-shi, JP;
Hiromitsu Ichikawa, Owariasahi, JP;
Masatoshi Tanaka, Seto, JP;
Atsushi Morishita, Hadano, JP;
Hiromitsu Murata, Kasugai, JP;
Yukio Machida, Owariasahi, JP;
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION, Kawasaki-shi, JP;
Abstract
An electric vacuum cleaner includes a main body case, driving wheels, and a cleaning portion. The main body case includes an electric blower, and a dust collecting portion communicating with a suction side of the electric blower. The driving wheels allow the main body case to travel on the surface to be cleaned. The cleaning portion includes a main body portion, the suction port, and wheels. The main body portion with a bottom surface portion facing the surface to be cleaned is located in a lower portion of the main body case and can move up and down. The suction port is provided on the bottom surface portion and communicates with the dust collecting portion. The wheels protrude downward from the bottom surface portion to contact the surface to be cleaned, thereby causing the main body portion to move up and down to trace the surface to be cleaned.