Jerry Nelson

US Patent:

20020098109, Jul 25, 2002

Filed:

Jul 26, 2001

Appl. No.:

09/912546

Inventors:

Jerry Nelson - Warwick RI, US
Craig Andrews - Cambridge MA, US

International Classification:

A61L009/20
A61L009/015
A61L002/18
C02F001/32
C02F001/50

US Classification:

422/005000, 422/024000, 422/028000, 422/121000, 422/123000, 422/124000, 210/198100, 210/748000, 210/760000, 096/224000, 096/226000

Abstract:

A method and apparatus for producing purified or ozone enriched air to remove contaminants from fluids is accomplished by exposing an air stream from a surrounding area to ozone generating ultra-violet (UV) radiation to generate ozone in a system ozone chamber. The ozone chamber is configured to reduce through-flow velocity and provide time for the ozone to mix with the air and oxidize contaminants. The air stream subsequently enters a germicidal chamber and is exposed to germicidal UV radiation to destroy bacteria and ozone in the air stream resulting in sterilized air. The radiation source may include an end-cap that interfaces guiding mechanisms to align the end-cap for power connections, and/or controls emission of ozone generating radiation to control production of ozone. Further, the system may include an additional germicidal chamber that exposes an air stream to germicidal radiation prior to treatment within the ozone chamber. Moreover, the system may be configured to include a baffling arrangement to control air through-flow velocity, or may be implemented by a cartridge arrangement, whereby a cartridge housing the chambers and radiation sources is periodically replaced. The system may further be configured for installation within a wall or ceiling, or may be utilized to remove contaminants from and/or ozonate liquids. In addition, the air sterilization systems may be utilized within air treatment systems to remove contaminants from an air stream within these systems.

US Patent:

20030039577, Feb 27, 2003

Filed:

Feb 14, 2002

Appl. No.:

10/073889

Inventors:

Jerry Nelson - Warwick RI, US
Craig Andrews - Cambridge MA, US

International Classification:

A61L009/00
A62B007/08

US Classification:

422/004000, 422/005000, 422/120000, 422/121000

Abstract:

A method and apparatus for removing contaminants from contaminated air is accomplished by exposing an incoming air stream from a surrounding area to ultra-violet (UV) radiation to generate ozone in an ozone chamber of the system. The ozone chamber is configured to reduce air through-flow velocity and to provide time for the ozone to mix with the air and oxidize the contaminants. The air stream subsequently enters a germicidal chamber and is again exposed to UV radiation at a different wavelength to destroy bacteria and any ozone in the air stream thus resulting in sterilized air. The system may include various ozone and germicidal chamber configurations to increase residence time within these chambers. Further, the system may be configured for installation within a wall or ceiling, or for mounting on a ceiling fan motor for use with ceiling fans.

US Patent:

20050175498, Aug 11, 2005

Filed:

Jul 30, 2003

Appl. No.:

10/629628

Inventors:

Jerry Nelson - Warwick RI, US
Craig Andrews - Cambridge MA, US

International Classification:

A61L009/20

US Classification:

422004000, 422121000

Abstract:

A method and apparatus for producing purified or ozone enriched air to remove contaminants from fluids is accomplished by exposing an air stream from a surrounding area to ozone generating ultra-violet (UV) radiation to generate ozone in a system ozone chamber. The ozone chamber is configured to reduce through-flow velocity and provide time for the ozone to mix with the air and oxidize contaminants. The air stream subsequently enters a germicidal chamber and is exposed to germicidal UV radiation to destroy bacteria and ozone in the air stream resulting in sterilized air. The radiation source may include an end-cap that interfaces guiding mechanisms to align the end-cap for power connections, and/or controls emission of ozone generating radiation to control production of ozone. Further, the system may include an additional germicidal chamber that exposes an air stream to germicidal radiation prior to treatment within the ozone chamber. Moreover, the system may be configured to include a baffling arrangement to control air through-flow velocity, or may be implemented by a cartridge arrangement, whereby a cartridge housing the chambers and radiation sources is periodically replaced. The system may further be configured for installation within a wall or ceiling, or may be utilized to remove contaminants from and/or ozonate liquids. In addition, the air sterilization systems may be utilized within air treatment systems to remove contaminants from an air stream within these systems.