	US 7,498,004 B2
	Ultraviolet disinfecting apparatus
Robert J. Saccomanno, Montville, N.J. (US)
Assigned to Honeywell International Inc., Morristown, N.J. (US)
Filed on Oct. 30, 2002, as Appl. No. 10/284,709.
Application 10/284709 is a continuation in part of application No. 10/268567, filed on Oct. 09, 2002, granted, now 6,773,584, filed on Aug. 10, 2004.
Claims priority of provisional application 60/336381, filed on Nov. 02, 2001.
Prior Publication US 2003/0086848 A1, May 08, 2003
Int. Cl. A61L 9/00 (2006.01); A61L 2/00 (2006.01); A62B 7/08 (2006.01); B01J 19/08 (2006.01); G01N 21/00 (2006.01); G01N 23/00 (2006.01); B03C 3/38 (2006.01)

U.S. Cl. 422—306 [422/1; 422/4; 422/5; 422/24; 422/121; 422/186; 422/186.3; 422/292; 422/900; 250/453.11; 250/454.11; 250/455.11; 96/16; 96/223; 96/224; 96/FOR.175]

20 Claims

1. A system to disinfect air using ultraviolet radiation (UV), said system comprising:

(a) an air inlet tube (110) comprising an entrance end (111), a distally opposing exit end (112), an elongate internal surface (121) in contact with said air, and an elongate external surface;

(b) total internal reflecting features disposed upon at least a portion of at least one of the elongate surfaces of said air inlet tube;

(d) an ultraviolet inlet window (135) that allows penetration of said air containment vessel by ultraviolet radiation but prevents passage therethrough of air;

(e) a high intensity ultraviolet lamp (40) providing ultraviolet radiation that passes through said ultraviolet inlet window and impinges upon the internal surface of said air inlet tube; and

(f) an air outlet (150) extending from said air containment vessel.