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:
May. 14, 2002
Filed:
Aug. 02, 2000
Tom L. Merk, Chesterland, OH (US);
Paul S. Malchesky, Painesville Township, OH (US);
Chung-Chiun Liu, Cleveland Hts., OH (US);
Steris Inc., Temecula, CA (US);
Abstract
An electrolysis unit ( ) has an anode ( ) and a gas diffusion cathode ( ). Air is fed to the cathode ( ) to generate peroxide species, such as hydrogen peroxide, peroxide ions, or peroxide radicals by electrolysis of oxygenated water. A peracetic acid precursor, such as acetyl salicylic acid, reacts with the peroxide to form peracetic acid. An ion selective barrier ( ) optionally separates the unit into two chambers, an anodic chamber ( ) and a cathodic chamber ( ). By selecting either a proton permeable membrane or an anion exchange membrane for the barrier, the peracetic acid may be formed in either an alkaline electrolyte in the cathodic chamber or in an acid electrolyte in the anode chamber, respectively.