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. 02, 2008
Filed:
Mar. 04, 2004
Yutaka Arai, Chiyoda, JP;
Yuuji Hosoda, Chiyoda, JP;
Saku Egawa, Toride, JP;
Hiroyuki Sadamori, Chiyoda, JP;
Hirofumi Tanaka, Shiroyama, JP;
Wataru Yamamoto, Hitachi, JP;
Taiji Tajima, Tsukuba, JP;
Makoto Hattori, Chiyoda, JP;
Yutaka Arai, Chiyoda, JP;
Yuuji Hosoda, Chiyoda, JP;
Saku Egawa, Toride, JP;
Hiroyuki Sadamori, Chiyoda, JP;
Hirofumi Tanaka, Shiroyama, JP;
Wataru Yamamoto, Hitachi, JP;
Taiji Tajima, Tsukuba, JP;
Makoto Hattori, Chiyoda, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Home & Life Solutions, Inc., Tokyo, JP;
Abstract
A self-propelled cleaning device having a cylindrical side cover has a suction body capable of moving transversely to the forward direction. The side cover is held by a base via a suspension. When cleaning corners of a room, the suction body moves by a wall and as the suction body moves to a corner, the movement amount of the suction body is changed. When an obstacle touches the cleaning device, the side cover moves, and the article touches a side cover switch, and the direction of the article is detected.