Charged water particle, and method for creating environment where mist of charged water particle is dispersed

• US 7,473,298 B2
• Filed: 05/26/2004
• Issued: 01/06/2009
• Est. Priority Date: 05/27/2003
• Status: Active Grant

• Current Assignee: Panasonic Electric Works Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Electric Works Company Limited (Panasonic Holdings Corporation)
• Inventors: Tanaka, Tomonori, Iwamoto, Narimasa, Azukizawa, Shigekazu, Matsui, Yasunori, Yamaguchi, Tomohiro, Nakada, Takayuki, Suda, Hiroshi, Yamauchi, Toshiyuki
• Primary Examiner(s): Chiesa; Richard L
• Application Number:
  US10/552,743
• Publication Number:
  US 20060214020A1
• Time in Patent Office: 1,686 Days
• Field of Search: 96/27, 96/52, 96/53, 96/50, 96/44, 96/46, 96/47, 95 64- 66, 95/71, 95/75, 239/3, 239/690, 239695-698, 239/704, 239/706
• US Class Current: 95/64
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes
• CPC Class Codes: B03C 3/014 Addition of water; Heat exchange, e.g. by condensation
• CPC Class Codes: B05B 1/14 with multiple outlet openings B05B1/02, B05B1/26 take precedence; with strainers in or outside the outlet opening
• CPC Class Codes: B05B 5/0255 spraying and depositing by electrostatic forces only
• CPC Class Codes: C01B 15/01 Hydrogen peroxide
• CPC Class Codes: C01B 5/00 Water

Abstract

Charged fine particulate water is provided, which has a nanometer particle size, for example, a particle size of 3 to 100 nm, and contains radicals such as hydroxyl radicals and superoxides. This charged fine particulate water can be generated by applying an electric-field intensity of 700 to 1200 V/mm between a pair of electrodes, while supplying water between the electrodes. By allowing the thus obtained charged fine particulate water to diffuse into an indoor space, it is possible to effectively remove bad odor components/bacteria from the indoor space.

Claims

1. Rayleigh fission generated charged fine particulate water having a particle size of 3 to 100 nm and containing at least one of hydroxyl radicals, superoxides, nitrogen monoxide radicals and oxygen radicals, wherein the charged fine particulate water is generated by Rayleigh fission caused by applying a high voltage to water on a needle end.

2. The charged fine particulate water as set forth in claim 1, containing acidic chemical species.

3. The charged fine particulate water as set forth in claim 2, containing a nitrogen oxide or an organic acid.

4. The charged fine particulate water as set forth in claim 1, containing at least one of nitric acid, nitric acid hydrate, nitrous acid and nitrous acid hydrate.

5. The charged fine particulate water as set forth in claim 1, wherein the charged fine particulate water is negatively charged.

6. A method of creating an environment where a mist of charged fine particulate water is dispersed, said method comprising the steps of:

providing a pair of electrodes, water supply unit configured to supply water between said electrodes, and a voltage applying unit configured to apply a voltage between said electrodes;

generating said mist of charged fine particulate water having a particle size of 3 to 100 nm and containing at least one of hydroxyl radicals, superoxides, nitrogen monoxide radicals and oxygen radicals, wherein the charged fine particulate water is generated by Rayleigh fission caused by applying a high voltage between said electrodes, while supplying water between said electrodes by said water supply unit; and

supplying said mist into a desired space to create the environment where said mist of charged fine particulate water is dispersed in the desired space.