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:
Jul. 21, 1992
Filed:
Oct. 09, 1990
Masao Sunagawa, Mito, JP;
Kouiti Sagawa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A vacuum cleaner including a main vacuum cleaner body having a plurality of caster mounting portions, respectively accommodating a caster, provided on a lower case of the vacuum cleaner main body, with the suction hose being turnably mounted substantially at a central portion of the upper case of the vacuum cleaner main body. A distance between an installation position of the suction hose and the respective caster mounting portions is substantially equal such that when the vacuum cleaner main body collides with an obstacle located on a surface to be cleaned by the vacuum cleaner, the suction hose can move easily and the vacuum cleaner main body can move and turn easily in a pulling direction of the suction hose to avoid the obstacle.