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:
Feb. 07, 1995
Filed:
Feb. 23, 1993
Applicant:
Inventors:
Assignee:
Ebara Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210662 ; 210678 ; 210686 ; 210688 ; 521 26 ;
Abstract
A method of mixed-bed filtration and demineralization for removing suspended impurities from the primary cooling water in a power plant by means of a demineralizer having a mixed bed formed of a particulate cation and anion exchange resin that have such a surface layer structure that granules are seen to bind with one another under microscopic examination, being able to be operated in a safe and yet economical manner by virtue of established conditions for operating processes, such as regeneration of the demineralizer by backwashing and by passage of chemicals and also, replacement of the demineralizer.