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Air-surface disinfection system, unit and method

  • US 9,433,693 B2
  • Filed: 05/21/2014
  • Issued: 09/06/2016
  • Est. Priority Date: 12/11/2012
  • Status: Active Grant
First Claim
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1. A disinfection unit comprising:

  • a housing comprising a blower or fan for blowing air;

    a transparent tubular member for receiving air blown by said blower or fan and for directing it in a predetermined direction;

    a plurality of ultraviolet light sources supported by said housing and arranged in a predetermined pattern around said transparent tubular member such that, when said plurality of ultraviolet light sources are energized, said plurality of ultraviolet light sources project ultraviolet radiation outward to facilitate sterilizing an environment outside said housing, said plurality of ultraviolet light sources also projecting ultraviolet radiation through said transparent tubular member to facilitate sterilizing air blown through said transparent tubular member; and

    a controller coupled to said blower or fan and said plurality of ultraviolet light sources for controlling operation of the disinfection unit;

    wherein said disinfection unit further comprises a plurality of transparent interrupters situated in a passageway of said transparent tubular member to slow or create turbulence in the air passing through said transparent tubular member, and which each of said plurality of transparent interrupters being generally tubular and permitting at least some of the air passing through said transparent tubular member to pass through it.

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