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:
Dec. 30, 2003
Filed:
Nov. 08, 2000
Edward F. Steiner, Lombard, IL (US);
James T. C. Yuan, Naperville, IL (US);
Other;
Abstract
A method for sanitizing a food processing environment includes preparing an ozonated foam sanitizing medium and applying the sanitizing medium to either objects in the food processing environment, such as food processing equipment, food contact surfaces, interior surfaces of the food processing facility, or the ambient environment within the food processing facility, or both the objects within the food processing facility and the ambient environment of the food processing facility. An ozonated foam sanitizing medium includes a foaming agent dissolved in an aqueous solution and an ozone concentration of at least about 0.1 ppm and is prepared by either injecting gaseous ozone or introducing an aqueous ozone solution into an aqueous solution containing a foaming agent. In a system for generating the ozonated foam medium, the gaseous ozone can be injected with a feed gas, such as oxygen, air, an inert gas, and mixtures thereof. Additionally, an inert gas, such as nitrogen, carbon dioxide, argon, krypton, xenon, neon, and mixtures thereof can be injected separately into the aqueous foam solution. Once prepared, the ozonated foam is applied to a surface within the food-processing environment to a thickness of about 0.25 inches to about 7 inches or more, and allowed to stand for a predetermined period of time. The ozonated foam is then washed away with an aqueous solution.