IP Library Granted Patent US 12,638,214
Granted Patent B2
US 12,638,214 · App. 18/211,144 · Granted May 26, 2026

Wind driven rain louver

Inventors: Vikas Patil (Jaysingpur, IN); Joseph S. Rockhold (Bates City, MO); Vahe Michael Astourian (Lee's Summit, MO); James Smardo (Kansas City, MO)
Assignee: Air Distribution Technologies IP, LLC
F24F13/15F24F13/1406
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Quick Facts
Patent No.
US 12,638,214
App. No.
18/211,144
Granted
May 26, 2026
Kind
B2
Abstract

A louver blade for a louver assembly includes a first segment and a second segment, where the second segment is adjustable relative to the first segment to selectively contact the first segment, the second segment is configured to reduce an amount of free area between adjacent louver blades of the louver assembly in a first position of the second segment, and the second segment is configured to increase the amount of free area between adjacent louver blades of the louver assembly in a second position of the second segment.

Claims (36)

1 . A louver blade for a louver assembly, the louver blade comprising:

a first segment;

a second segment, wherein the second segment is adjustable relative to the first segment to selectively contact the first segment, the second segment moveable between a first position and a second position, wherein the second segment reduces an amount of free area between adjacent louver blades of the louver assembly in the first position, and wherein the second segment increases the amount of free area between adjacent louver blades of the louver assembly in the second position;

a first extension of the first segment;

a second extension of the second segment; and

a seal disposed within a recess of the second extension,

wherein, in the first position of the second segment, the seal engages the first extension of the first segment.

2 . The louver blade of claim 1 , wherein the first segment is configured to be fixed relative to a frame of the louver assembly.

3 . The louver blade of claim 1 , wherein the second segment is configured to rotate relative to the first segment to transition between the first position and the second position.

4 . The louver blade of claim 1 , wherein the second segment comprises:

a joint configured to rotatably couple the second segment to a frame of the louver assembly; and

the second extension extending from the joint, wherein, in the first position of the second segment, the second extension at least partially defines a recess between the first segment and the extension, and wherein the second extension is configured to guide particles into the recess in an installed configuration of the louver blade with the louver assembly.

5 . The louver blade of claim 4 , wherein, in the second position of the second segment, the second extension contacts the first segment and to guide an air flow across the louver blade.

6 . The louver blade of claim 1 , wherein, in the second position of the second segment, the seal is disengaged from the first extension.

7 . The louver blade of claim 6 , wherein the first segment comprises a mounting portion configured to enable securement of the first segment to a frame of the louver assembly, and the second extension contacts the mounting portion in the second position.

8 . The louver blade of claim 1 , wherein the first segment is an upstream blade segment and the second segment is a downstream blade segment, relative to a direction of air flow through the louver assembly.

9 . A louver assembly for a heating, ventilation, and air conditioning (HVAC) system, the louver assembly comprising:

a louver blade comprising a first segment and a second segment, wherein the second segment is adjustable, relative to the first segment, between a first position and a second position, the second segment movable between a first position and a second position, wherein the second segment reduces an amount of free area through the louver assembly, and wherein the second segment is increases the amount of free area through the louver assembly in the second position;

a controller configured to control transition of the second segment between the first position and the section position; and

a sensor communicatively coupled to the controller, wherein the sensor is configured to collect data indicative of an operating parameter of an environment surrounding the louver assembly, and the controller is configured to control transition of the louver blade between the first position and the second position based on the data.

10 . The louver assembly of claim 9 , wherein the operating parameter is indicative of an amount of rainfall of the environment, and the controller is configured to:

control transition of the second segment to the first position based on the data indicating that the amount of rainfall is greater than a threshold value; and

control transition of the second segment to the second position based on the data indicating that the amount of rainfall is less than the threshold value.

11 . The louver assembly of claim 9 , wherein the operating parameter is indicative of a wind speed of the environment, and controller is configured to:

control transition of the second segment to the first position based on the data indicating that the wind speed is greater than a threshold value; and

control transition of the second segment to the second position based on the data indicating that the wind speed is less than the threshold value.

12 . The louver assembly of claim 9 , wherein the second segment comprises an extension, the extension at least partially defining a recess in the first position, and wherein the recess is configured to capture solid particles or liquid particles directed into the louver assembly.

13 . The louver assembly of claim 12 , comprising a frame assembly, wherein the frame assembly comprises a jamb frame member coupled to the louver blade, the jamb frame comprises a channel that aligns with the recess to receive the solid particles or the liquid particles from the recess.

14 . The louver assembly of claim 9 , wherein the louver blade comprises a seal positioned within a recess of the second segment, wherein the seal is engages with an extension of the first segment to establish a sealing interface between the first segment and the second segment in the first position of the second segment.

15 . A louver blade for a louver assembly, wherein the louver blade comprises:

an upstream segment comprising a first extension;

a downstream segment comprising a second extension and a third extension, wherein the downstream segment is configured to rotate relative to the upstream segment between a first position and a second position; and

a seal disposed within a recess of the second extension, wherein the seal is engages with the first extension of the upstream segment in the first position of the downstream segment,

wherein the downstream segment reduces an amount of free area through the louver assembly in the first position and increases the amount of free area through the louver assembly in the second position.

16 . The louver blade of claim 15 , wherein the first extension, the second extension, the third extension, and the seal collectively define a cavity configured to collect particles in the first position of the downstream segment.

17 . The louver blade of claim 15 , wherein the third extension is contacts a mounting portion of the upstream segment in the second position of the downstream segment to limit rotation of the downstream segment beyond the second position and away from the first position.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Jan 9, 2026
From: ACQUIOM AGENCY SERVICES, LLC
To: AIR DISTRIBUTION TECHNOLOGIES IP, LLC; AIR SYSTEM COMPONENTS, INC.
Reel/Frame 074282/0279 →
SECURITY INTEREST Recorded Aug 1, 2024
From: AIR DISTRIBUTION TECHNOLOGIES IP, LLC; AIR SYSTEM COMPONENTS, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 068324/0782 →
SECURITY INTEREST Recorded Aug 1, 2024
From: AIR DISTRIBUTION TECHNOLOGIES IP, LLC; AIR SYSTEM COMPONENTS, INC.
To: ACQUIOM AGENCY SERVICES LLC, AS COLLATERAL AGENT
Reel/Frame 068550/0054 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 9, 2024
From: PATIL, VIKAS; ROCKHOLD, JOSEPH S.; ASTOURIAN, VAHE MICHAEL; SMARDO, JAMES
To: AIR DISTRIBUTION TECHNOLOGIES IP, LLC
Reel/Frame 067051/0225 →
Continuity (2)
Provisional Application 63352909 · Jun 16, 2022
Related Publication 20230408139A1 · Dec 21, 2023
References Cited (4)
US 3682084A · Tarnoff · 1972 [cited by examiner]
US 11993361B2 · Parks · 2024 [cited by examiner]
US 20210172646A1 · Patil et al. · 2021 [cited by applicant]
Architectural Louver Catalog, Ruskin, Apr. 11, 2018, p. 1-64, 3900 Dr. Greaves Rd. Kansas City, MO 64030, https://www.ruskin.com/doc/id/6935. [cited by applicant]