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DEODORIZING APPLIANCE WITH EVACUATED DEODORIZATION CYCLE

IP.com Disclosure Number: IPCOM000200338D
Publication Date: 2010-Oct-06
Document File: 5 page(s) / 42K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention provides for an appliance for disinfecting or deodorizing articles that incorporates an evacuated deodorization cycle, by creating a vacuum in a control volume of the appliance prior to the introduction of ozone gas, and thus improving the ability of the ozone gas to permeate articles in the appliance and allowing the ozone to react with odor causing compounds.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 39% of the total text.

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DEODORIZING APPLIANCE WITH EVACUATED DEODORIZATION CYCLE

BACKGROUND

The present invention relates generally to home appliances, and more particularly to the incorporation of ozone in appliances for disinfecting and/or deodorizing an article.

Ozone gas provides numerous benefits when it is incorporated into the operation of an appliance for disinfecting or deodorizing articles. Ozone is similar in cleansing ability to chlorine bleach (sodium hypochlorite, NaClO). In appliances that require water in a wash cycle, such as a washing machine, less water is required to adequately rinse articles when ozonated water is utilized. Discoloration of articles is also less likely in appliances that utilize ozone, regardless of whether or not the appliance requires water to disinfect or deodorize clothing articles. This allows the user of the appliance to achieve savings in water and detergent use.

Appliances, such as clothes washing machines, may incorporate ozone in order to improve the ability of the appliance to cleanse and deodorize articles. Large-scale washing machines may be supplied with ozonated water. Such systems comprise a washing machine, a large external ozone generator, and a means for introducing the ozone to the water inlet of the conventional washing machine, in addition to known components of conventional washing machines.

However, appliances that utilize ozone in their operation require significant exposure times in order to adequately disinfect or deodorize articles. Additionally, high ozone concentrations are necessary to effectively disinfect or deodorize articles when ozone or ozonated water is used. Also, large ozone generators are necessary for use of ozonated water in such systems and impose significant monetary and space costs. These defects are illustrated in Figure 1, which shows a conventional residential washing machine with a system for providing ozonated water that is external to the washing machine.

There exists a need for an appliance that incorporates ozone in its operation, reduces energy needs, and maintains or improves the ability of the washing machine to deodorize or disinfect articles.

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BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a front view of an exemplary washing machine with a conventional water born ozonation system.

Figure 2 is a process diagram of the steps for providing ozone to the evacuated deodorization cycle in accordance with the present invention.

Figure 3 is a graph that illustrates the pressure experienced in a control volume of an appliance as a function of time for three cycles of the evacuated deodorization in accordance with the present invention.

Figure 4 is a graph that illustrates the status of a vacuum pump, a pump, and a solenoid valve for three cycles of the evacuated deodorization in accordance with the present invention.

DETAILED DESCRIPTION

The present invention relates to appliances for disinfecting or deodorizing articles. The appliance may...