Ozone treatment system for point of use purification of water and sanitizing agent for surfaces, articles and foods

US5824274A · kind A · utility

Inventor

• Ron Long · Orange, US

Key dates

• Filing date: Jan 28, 1997
• Grant date: Oct 20, 1998
• Expiry date: Jan 28, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F1/78
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An water purifier and surface sanitizer uses an ozone generator but requires no air dryer, is adapted for simple maintenance and for use in remote areas from low-voltage DC. The sanitizer has a housing with a high-voltage supply device such as a pulse coil, coupled directly to a tubular inner electrode. A dielectric tube of borosilicate glass (e.g. PYREX) is shaped like a test tube with one open end, and slides over the inner electrode with a push fit. The dielectric tube is easy to clean since it is can be nulled off the inner electrode, cleaned with acid/neutralizer or detergent to remove built-up surface-contaminants, and replaced; this avoids any need for an air dryer. An outer electrode includes an air space (corona space) and gaps for ventilation. Air passes over the dielectric, becoming ozonated by the high voltage, and is drawn into a water stream by a venturi. The water may also pass through a particle filter. The water flow is controlled by an fully-on or fully-off faucet.