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:
Mar. 25, 2003
Filed:
Mar. 01, 2001
Hiroyuki Uratani, Shiga, JP;
Yoshiaki Ohnishi, Shiga, JP;
Toshifumi Miyahara, Shiga, JP;
Masaki Shibuya, Shiga, JP;
Kazuma Suo, Shiga, JP;
Saburo Kajikawa, Shiga, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An electric cleaner provided with a main body comprised of a cleaner housing ( ) equipped with wheels ( ) for mobility on a floor surface. Both side surfaces of the main body extend outwardly beyond rim portions ( ) of the respective wheels ( ) that stay in contact with the floor surface, and a center of gravity G ( ) of the main body is placed in such a position that the main body rolls toward a direction where the wheels ( ) stand on the floor surface so as to return itself into an original posture when the main body tilts in a way that one of the side surfaces lies in contact to the floor.