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. 22, 2000
Filed:
Jul. 06, 1998
Mitsubishi Gas Chemical Company Inc., Tokyo, JP;
Katayama Chemical Inc., Osaka, JP;
Abstract
A method for preventing obstruction in aluminum brass pipes in a water flow path, including the steps of continuously supplying iron ions or an iron ion supply compound to water in the water flow path in such a manner that a concentration of iron ions in the water is 0.005 to 0.05 mg/liter, and supplying hydrogen peroxide or a hydrogen peroxide supply compound for a period of time sufficient for preventing adhesion of organisms to the aluminum brass pipes but not impeditive to formation of corrosion-resistant coating inside the pipes, in such a manner that a concentration of hydrogen peroxide in the water is 0.1 to 1.5 mg/liter, whereby corrosion of aluminum brass pipes and adhesion of organisms to the pipes are prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile