Ozonated foam medium and production system and method for sanitizing a food processing environment
US6669902B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 environ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.