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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12270589 B1

PDFFull Text
Date of Patent:
Apr. 08, 2025

Filed:

Aug. 29, 2018

Antimicrobial air ducts

Applicant:

Whirlpool Corporation, Benton Harbor, MI (US);

Inventors:

Mehmet Ali Acar, Izmir, TR;

Muhammad Khizar, St. Joseph, MI (US);

Andrea Olivani, Milan, IT;

Matteo Parnisari, Biandronno, IT;

Assignee:

Whirlpool Corporation, Benton Harbor, MI (US);

Attorney:

Price Heneveld LLP

Primary Examiner:

Regina M Yoo

Int. Cl.
CPC ...
F25D 17/04 (2006.01); A61L 9/20 (2006.01); B01D 53/00 (2006.01); B01D 53/88 (2006.01); B01J 23/08 (2006.01); B01J 23/50 (2006.01); B01J 23/66 (2006.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); F25D 17/06 (2006.01); F25D 17/08 (2006.01); F24F 8/24 (2021.01);
U.S. Cl.
CPC ...
F25D 17/042 (2013.01); A61L 9/205 (2013.01); B01D 53/007 (2013.01); B01D 53/885 (2013.01); B01J 23/08 (2013.01); B01J 23/50 (2013.01); B01J 23/66 (2013.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); F25D 17/065 (2013.01); F25D 17/08 (2013.01); A61L 2209/12 (2013.01); B01D 2255/104 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/209 (2013.01); B01D 2255/802 (2013.01); B01D 2257/708 (2013.01); B01D 2257/91 (2013.01); F24F 8/24 (2021.01); F25D 2317/041 (2013.01); F25D 2317/0417 (2013.01);
Abstract

A refrigerator includes a cabinet coupled to one or more doors forming a storage compartment and an air purifying duct system positioned in the storage compartment. The air purifying duct system includes an air duct in fluid communication with the storage compartment; a fan configured to circulate air between the storage compartment and air duct; a photocatalyst disposed on a portion of the interior surface; one or more LEDs positioned to project light across the air duct and onto the photocatalyst; and an air circulation path configured to direct pathogens within the storage compartment into the air duct using the fan and circulate purified air into the storage compartment.

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