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:
Sep. 08, 1992
Filed:
Oct. 05, 1989
Applicant:
Inventors:
Syuji Watanabe, Ibaraki, JP;
Kouiti Sagawa, Hitachi, JP;
Gorou Sasai, Hitachi, JP;
Hidetoshi Sakurai, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15323 ; 15325 ; 153271 ; 153272 ; 153277 ; 15339 ;
Abstract
An electric cleaner is provided with a moving mechanism for avoiding or escaping an obstacle so as to turn and move a cleaner body when the cleaning body collides with the obstacle. According to the electric cleaner, even if the cleaner body is collided with the obstacle, it is easy to escape or avoid away from the obstacle to ensure a smooth travel of the cleaner body while preventing an overturn of the cleaner.