Ceiling Tile With Built-In Air Flow Mechanism

Patent No. US11255336 (titled "Ceiling Tile With Built-In Air Flow Mechanism") was filed by Go Fan Yourself Llc on May 6, 2020.

What is this patent about?

’336 is related to the field of ceiling-mounted air circulation and lighting systems, specifically addressing the need for improved air quality and efficient lighting in indoor environments. Traditional HVAC systems often struggle to provide uniform air distribution, while separate lighting solutions may lack energy efficiency and thermal management. The patent aims to integrate these functions into a single unit that fits within the standard dimensions of a ceiling tile.

The underlying idea behind ’336 is to combine an axial fan with LED lighting within a standard ceiling tile form factor, creating a self-contained air circulation and illumination system. The key inventive insight is to use the fan to actively cool the LED lights, improving their lifespan and efficiency, while simultaneously circulating air within the room. Furthermore, the addition of a UV light source within a shielded chamber allows for air decontamination as it passes through the unit.

The claims of ’336 focus on an air circulation device comprising a housing, a fan, a vent, and a baffle that defines an airway between the fan and the vent. Critically, the claims require a UV kill chamber mounted within this airway, including a UV light source and a UV shield to prevent UV light from escaping. This combination provides both air circulation and decontamination within a compact, ceiling-mountable unit.

In practice, the fan draws air into the device, and the baffle directs this airflow across the LED lighting to dissipate heat. The air then passes through the UV kill chamber, where the UV light irradiates and neutralizes airborne contaminants. The UV shield ensures that the harmful UV rays are contained within the chamber, preventing exposure to occupants of the room. The purified and circulated air is then expelled through the vent.

This design differentiates itself from prior approaches by integrating air circulation, lighting, and air purification into a single, easily installed unit. Unlike traditional ceiling fans or separate air purifiers, ’336 provides a compact and efficient solution that addresses multiple needs simultaneously. The active cooling of the LED lights also improves their performance and longevity, offering a more sustainable and cost-effective lighting solution.

How does this patent fit in bigger picture?

Technical landscape at the time

In the mid-2010s when ’336 was filed, at a time when HVAC systems were commonly relied upon for air circulation and separate lighting systems were used for illumination. Hardware constraints made it non-trivial to integrate both air circulation and lighting within the standard dimensions of a ceiling tile. Furthermore, efficiently managing heat dissipation from LED lighting systems was a known challenge.

Novelty and Inventive Step

The examiner approved the application because the prior art did not teach or suggest combining the claimed features. Specifically, the prior art failed to disclose or make obvious a baffle mounted to the housing that defines an airway between the fan and vent, a UV kill chamber in the airway, and a UV shield to prevent UV light from escaping the airway. Similar reasoning was applied to the dependent claims.

Claims

This patent includes 20 claims, with independent claims numbered 1, 10, and 14. The independent claims generally focus on an air circulation device incorporating a UV kill chamber or UV light source for air purification. The dependent claims generally add specific features, materials, or configurations to the air circulation device described in the independent claims.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Air chamber
(Claim 10)
“In some embodiments, the air purifying device comprises at least a second vent, and wherein the baffle further defines at least a second airway between the fan and the second vent, wherein a second UV light source is mounted in the second airway, wherein the second airway accommodates a UV-reflective material in at least a portion of the second airway, and wherein a second UV-screen is attached to the first airway to block UV light from exiting the airway.”A chamber positioned within the housing adjacent the fan, wherein air from the fan enters the air chamber and proceeds through a vent.
Reflective material
(Claim 14)
“In some embodiments, the first and second airway are lined with a UV-reflective material. Moreover, the UV-reflective material may be stainless steel. Further yet, in some embodiments the UV-reflective material creates a kill zone which decontaminates air flowing through the first and second airway.”A material lining a portion of the first airway to create a kill chamber inside the first airway.
Uv kill chamber
(Claim 1)
“Embodiments of the inventions may further include one or more UV lights which irradiate the air flow, thereby removing airborne contaminants such as viruses, superbugs, mold, etc.”A chamber mounted in the first airway that includes a UV light source and a UV-shield adapted to block UV light generated by the UV light source from exiting the first airway.
Uv light source
(Claim 1, Claim 10, Claim 14)
“Further yet, embodiments of the invention may include one or more UV lights which irradiate the air flow, thereby removing airborne contaminants such as viruses, superbugs, mold, etc. The first and second UV light sources may emit UV-C light waves having a wavelength between 200 to 280 nanometers.”A source capable of emitting UV light rays positioned in the air chamber.
Uv-shield
(Claim 1)
“The inventions include an air purifying device, comprising: a ceiling tile having at least one vent; a fan mounted to the ceiling tile; a baffle defining at least a first airway between the fan and the vent; and at least a first UV light source mounted in the first airway, wherein the first airway accommodates a UV-reflective material in at least a portion of the first airway; and wherein a first UV-screen is attached to the first airway to block UV light from exiting the airway.”A shield adapted to block UV light generated by the UV light source from exiting the first airway.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
1:25-cv-06684Jun 17, 2025Go Fan Yourself, LLC v. Louvers International, Inc.
1:25-cv-00644Jun 10, 2025Go Fan Yourself, Llc V. Uv Partners, Inc.
1:25-cv-03367Apr 28, 2025Go Fan Yourself, Llc V. Olympia Lighting, Inc.

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US11255336

GO FAN YOURSELF LLC
Application Number
US16868042
Filing Date
May 6, 2020
Status
Granted
Expiry Date
Mar 30, 2037
External Links
Slate, USPTO, Google Patents