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. 30, 2004
Filed:
Oct. 05, 2001
Hiroshi Hayasaka, Hitachinaka, JP;
Yukiyoshi Maehara, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A swing rotor for centrifugal machines is provided. The rotor comprises a rotor body around which plural arms are disposed. A through hole is formed in place through each arm. Plural buckets are arranged around the rotor body so as to be swingable between two arms. Each rotor pin is inserted through each through hole to be arranged in a direction of a normal line to a rotation axis of the rotor body, so that two buckets are swingably supported by both ends of each rotor pin. Each end of the rotor pin is shaped into an outwardly extended taper form having a predetermined taper angle made to a center axis of each rotor pin. The taper angle is substantially equal to an angle made between a swinging axis of each bucket and the center axis of each rotor pin. This reduces failures in swing motions of the buckets.