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:
Aug. 30, 1994
Filed:
Aug. 17, 1993
Yoshitaka Niinai, Katsuta, JP;
Akio Nagata, Katsuta, JP;
Norihisa Sagawa, Katsuta, JP;
Shigeru Shinohara, Mito, JP;
Eiji Nakayama, Katsuta, JP;
Mitsutoshi Yotsuyanagi, Katsuta, JP;
Hiroshi Hayasaka, Katsuta, JP;
Kazuyoshi Tokunaga, Katsuta, JP;
Hitachi Koki Company Limited, Tokyo, JP;
Abstract
A management system for use in a centrifuge equipped with a detachable rotor which is rotatable so as to separate density-different samples by a centrifugal force due to the rotation. The management system is for managing the lifetime of the rotor on the basis of the detection results of an operated-condition detector for detecting operated conditions such as the number of times of rotation, running time and rotational speed of the rotor. The management system includes a data storing device which is provided on the rotor to be rotatable therewith and is composed of a magnetic recording medium to allow keeping data relating to the operated conditions of the rotor. Also included in the management system is a data processing unit coupled through a data reading and writing device such as a magnetic head to the data keeping device and also coupled to the operated-condition detector to be responsive to the operated conditions. The data processing unit reads out previous data from the data keeping device at the time of start of operation of the centrifuge, processes the operated conditions from the detector together with the read previous data to write on the data storing device new data produced by the data processing.