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. 04, 2012
Filed:
Jun. 04, 2007
Kensuke Kuroki, Shizuoka, JP;
Tatsunori Nishihara, Minamiashigara, JP;
Kouji Wada, Fujikawa, JP;
Hideharu Tanaka, Shizuoka, JP;
Toshimasa Hiraoka, Yaizu, JP;
Tsuyoshi Morii, Tsubame, JP;
Kensuke Kuroki, Shizuoka, JP;
Tatsunori Nishihara, Minamiashigara, JP;
Kouji Wada, Fujikawa, JP;
Hideharu Tanaka, Shizuoka, JP;
Toshimasa Hiraoka, Yaizu, JP;
Tsuyoshi Morii, Tsubame, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Koshin Industries Co., Ltd., Niigata, JP;
Abstract
The multiblade impeller of the present invention comprises a main plate, a side plate having a suction port at a center thereof, and a large number of blades provided between the main plate and the side plate and extend in the radial direction in an arc form. The main plate and the side plate each have a large number of ridge portions, each extending in the radial direction in an arc form so as to coincide with the shape of the blade extending in the radial direction in an arc form. End portions of the blades are inserted in grooves formed inside the ridge portions of the main plate and the side plate and are fixed to the ridge portions by being bent.