Air treatment system for localized and personal use

• US 20040184949A1
• Filed: 03/17/2003
• Published: 09/23/2004
• Est. Priority Date: 03/17/2003
• Status: Abandoned Application

• Current Assignee: Steri-Lus LLC (Lasko Holdings, Inc.)
• Original Assignee: Steri-Lus LLC (Lasko Holdings, Inc.)
• Inventors: McEllen, John J.
• Application Number:
  US10/389,822
• Publication Number:
  US 20040184949A1
• Time in Patent Office: Days
• US Class Current: 422/4
• CPC Class Codes: A61L 9/20 Ultraviolet radiation

Abstract

In general, the present invention provides a personal air sterilization unit including an intake port; an exhaust port; a sterilization duct communicating in between the intake port and the exhaust port; an ultraviolet light source emitting ultraviolet light and retained within the sterilization duct to expose the interior of the sterilization duct to ultraviolet light; and means for drawing air into the intake port, forcing it through the sterilization duct, where it is treated by ultraviolet light, and thereafter forcing it out through the exhaust port to create a circulating air current encompassing a personal air space.

Claims

1. A personal air sterilization unit comprising:

an intake port;

an exhaust port;

a sterilization duct communicating between said intake port and said exhaust port;

a UV light source emitting UV light and retained within said sterilization duct to expose the interior of said sterilization duct to UV light;

means for drawing air into said intake port, forcing it through said sterilization duct, where it is treated by the UV light, and thereafter forcing it out through said exhaust port to create a circulating air current encompassing a volume of up to about 125 cubic feet, defining a personal airspace.

2. The personal air sterilization unit according to claim 1, wherein said exhaust port is adjustable and directs air forced out thereof in an arc selectively measuring from about 60 to about 120 degrees with respect to a central axis of said sterilization duct.

3. The personal air sterilization unit according to claim 2, wherein said intake port transfers air into said sterilization duct through an arc measuring about 180 degrees with respect to said central axis of said sterilization duct.

4. The personal air sterilization unit according to claim 3, wherein sterilized air is exhausted from said adjustable exhaust port and a portion of the exhausted sterilized air is overtaken by the intake port, to create a partial closed circuit of sterilized air within said personal airspace.

5. A method for protecting an individual from exposure to microorganisms and for protecting others from exposure to microorganisms exhaled by an infected individual comprising the steps of:

circulating air in a targeted partial closed circuit encompassing an individual'"'"'s personal airspace; and

treating the air with an ultraviolet light source to disable microorganisms within the air.

6. A method for protecting an individual from exposure to microorganisms and for protecting others from exposure to microorganisms exhaled by and infected individual comprising the steps of:

drawing air through a air sterilization unit having an intake port that spans approximately 180°

, an exhaust port that spans approximately 120°

, and a sterilization duct communicating between the intake port and exhaust port; and

treating the air with an ultraviolet light source within the sterilization duct to disable microorganisms within the air drawn therethrough.