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:
Jun. 12, 2001
Filed:
Mar. 13, 2000
Kouichi Nakai, Himeji, JP;
Toshinari Kobayashi, Ono, JP;
Sadaki Kodera, Kasai, JP;
Yoshihiro Mori, Kasai, JP;
Toshiyuki Fujiyoshi, Kasai, JP;
Takahiro Nishiyama, Kasai, JP;
Sanyo Electric Co., Ltd., Osaka-fu, JP;
Abstract
A vacuum cleaner wherein a hose, a pipe and a suction nozzle, which are connected to a vacuum cleaner main body incorporating therein a motor fan, are formed with a suction air passage as well as an exhaust air passage for making air exhausted from the motor fan circumfluently flow. The pipe is composed of an inner cylindrical portion having a substantially circular section and forming the suction air passage, and an outer cylindrical portion a part of which is uniformly formed with the inner cylindrical portion and which covers the inner cylindrical portion to form the exhaust air passage. There can be achieved for a light-weighted and slim-sized arrangement of the pipe through which the suction air passage and the exhaust air passage extends without the fear of dust plugging, and a vacuum cleaner of exhaust circumfluently flowing type can be easily put into to practice.