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:
Mar. 03, 1987
Filed:
Jun. 07, 1985
Makoto Nagai, Yaizu, JP;
Isamu Horiuchi, Shimizu, JP;
Masamichi Hanada, Shimizu, JP;
Sigeaki Kuroda, Shimizu, JP;
Masakatsu Hayashi, Shimizu, JP;
Yasuro Ohishi, Fujieda, JP;
Yutaka Mori, Shizuoka, JP;
Eiji Maeda, Shimizu, JP;
Kimito Kasukabe, Shizuoka, JP;
Yuji Tsujita, Shimizu, JP;
Hironori Etou, Shimizu, JP;
Katsuaki Kikuchi, Shimizu, JP;
Masato Itagaki, Shimizu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An impeller of a centrifugal blower includes a hub, a hub plate, a plurality of blades and a shroud. The hub plate has an outer diameter which is smaller than an inner diameter of the shroud and a portion of the blades existing in the difference between the diameters is provided with a parting plane of molds, whereby the impeller can be integrally molded by the injection molding.