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. 15, 2005
Filed:
Mar. 26, 2002
Masaharu Aizawa, Hitachinaka, JP;
Masaharu Aizawa, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A rotor for a centrifugal separator. The rotor has a rotor body with a cylindrical outer wall extending upward from a bottom portion and a boss portion provided at a center of the bottom portion. The outer wall is located radially outward with respect to the boss portion serving as a rotational center of the rotor body. The rotor also has a plurality of buckets that are swingably supported in the rotor body and each of the buckets holds a boxlike sample container. A supporting element supports a hinge shaft serving as a swing center of the bucket. Each of the buckets has a bottom surface that is brought into contact with an inside surface of an outer wall of the rotor body due to a centrifugal force when the rotor rotates, so that the buckets and the rotor body integrally rotate during centrifugal operation. The hinge shaft is offset from a line extending from a centroid of the bucket perpendicularly to the bottom surface of the bucket, and is located at a position higher than the sample container and the bucket inclines obliquely with respect to the bottom portion of the rotor body when the rotor body is stopped.