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:
Jan. 26, 1993
Filed:
Jul. 23, 1991
Applicant:
Inventors:
Assignee:
Daiki Engineering Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
204147 ; 204130 ; 204196 ;
Abstract
A stain preventing method comprises: lining a conductive sheet on an article subjected to stain prevention; arranging an electrode member and a reference electrode in sea water; applying direct electric current using the conductive sheet as an anode and the electrode member as a cathode; allowing a current to flow while controlling a potential difference between the reference electrode and the anode to be in a certain range; and thereby giving electric shock to microorganisms which contact with the conductive sheet so as to prevent adhesion thereof. Stain prevention can be effectively carried out without generating substances harmful for life such as chlorine due to electrolysis of sea water.