Antimicrobial air ducts
US12270589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2018 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Dec 16, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2317/0417
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.