IP Library Granted Patent US 12,540,742
Granted Patent B2
US 12,540,742 · App. 18/205,158 · Granted Feb 3, 2026

Distribution tray for humidifier

Inventors: Michael Schatz (Madison, WI); Nathan Hughes (Madison, WI); Joshua Edwards McKune (Madison, WI)
Assignee: Research Products Corporation
F24F6/04F24F13/222
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Quick Facts
Patent No.
US 12,540,742
App. No.
18/205,158
Granted
Feb 3, 2026
Kind
B2
Abstract

A distribution tray for a humidifier includes a surface, and a flow divider disposed on the surface, where the flow divider is configured to receive a flow of water. The distribution tray also includes a plurality of channels, where each channel within the plurality of channels is fluidly coupled to the flow divider and is configured to receive water from the flow divider. Each channel of the plurality of channels defines a flow path, and each flow path has a varying slope along a length of each channel.

Claims (35)

1 . A distribution tray for a humidifier, the distribution tray comprising:

a surface;

a flow divider disposed on the surface, the flow divider configured to receive a flow of water; and

a plurality of channels, wherein each channel of the plurality of channels is fluidly coupled to the flow divider and configured to receive water from the flow divider;

wherein each channel defines a flow path, and wherein each flow path increases in slope along a length of each channel.

2 . The distribution tray of claim 1 , wherein the distribution tray is rectangular in shape, having a first side, a second side opposite the first side, a third side substantially perpendicular to the first side, and a fourth side opposite the third side.

3 . The distribution tray of claim 2 , wherein a first channel of the plurality of channels extends toward the third side and a second channel of the plurality of channels extends toward the fourth side.

4 . The distribution tray of claim 2 , wherein the flow divider is disposed at a midpoint between the first side and the second side.

5 . The distribution tray of claim 2 , wherein the flow divider has one of a conical shape or a spherical shape.

6 . The distribution tray of claim 2 , wherein the slope of the flow path is greatest at an end of the channel.

7 . The distribution tray of claim 6 , wherein the flow path is configured to curve in a first direction and a second direction, the second direction being perpendicular to the first direction.

8 . A distribution tray for a humidifier, the distribution tray comprising:

a surface enclosed by a retaining wall; and

a flow divider disposed on the surface at a point between opposite sides of the retaining wall, the flow divider configured to receive a flow of water;

wherein the flow divider is fluidly coupled to a plurality of channels, each of the plurality of channels being disposed equidistantly about a circumference of the flow divider and configured to receive a portion of the flow of water;

wherein each of the plurality of channels includes a leaf portion, the leaf portion defining a flow path, and wherein the flow path has a varying slope along a length of the leaf portion.

9 . The distribution tray of claim 8 , wherein the slope is greatest at a terminal end of the leaf portion.

10 . The distribution tray of claim 8 , wherein the flow path corresponding to a longest of the plurality of channels has a greatest radius of curvature nearest the flow divider and the flow path corresponding to a shortest of the plurality of channels has a smallest radius of curvature nearest the flow divider.

11 . The distribution tray of claim 8 , wherein the plurality of channels comprises six channels.

12 . The distribution tray of claim 8 , wherein each of the plurality of channels is formed between two splitter walls, each splitter wall extending from the flow divider toward the retaining wall.

13 . The distribution tray of claim 8 , wherein the leaf portion comprises a plurality of ribs, the plurality of ribs configured to facilitate water beading.

14 . The distribution tray of claim 8 , further comprising a treated surface, the treated surface configured to have a lowered surface energy as compared to an untreated version of the distribution tray.

15 . A humidifier comprising:

a conduit configured to facilitate water flow from a water supply; and

a distribution tray fluidly coupled to the conduit, the distribution tray comprising:

a surface enclosed by a retaining wall;

a flow divider disposed on the surface, the flow divider configured to receive water from the conduit; and

a plurality of channels, each of the plurality of channels being defined between two splitter walls, wherein each of the plurality of channels is configured to receive a portion of the water;

wherein each of the plurality of channels includes a leaf portion, the leaf portion defining a flow path, and wherein the flow path has a varying slope along a length of the leaf portion; and

wherein an outlet of the conduit is configured to be placed between ends of the two splitter walls.

16 . The humidifier of claim 15 , wherein each of the ends of the two splitter walls comprises a shoulder, the shoulder configured to prevent downward motion of the outlet.

17 . The humidifier of claim 16 , wherein the flow divider is conical in shape.

18 . The humidifier of claim 17 , wherein a position of an apex of the flow divider relative to the outlet is based on a height of the ends of the two splitter walls.

19 . The humidifier of claim 15 , wherein the conduit is an elbow.

20 . The humidifier of claim 19 , wherein the distribution tray further comprises a recess disposed adjacent a side of the retaining wall, wherein the recess is configured to receive an anchor portion of the conduit.

Assignments (4)
ASSIGNMENT OF PATENT SECURITY AGREEMENT, RECORDED ON OCTOBER 15, 2025 AT REEL/FRAME 73109/0707 Recorded Jul 16, 2026
From: GOLDMAN SACHS BANK USA, AS EXISTING AGENT
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR AGENT
Reel/Frame 075998/0444 →
PATENT SECURITY AGREEMENT Recorded Oct 15, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 073109/0707 →
SECURITY INTEREST Recorded Oct 6, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 073007/0564 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2023
From: SCHATZ, MICHAEL; HUGHES, NATHAN; MCKUNE, JOSHUA EDWARDS
To: RESEARCH PRODUCTS CORPORATION
Reel/Frame 065054/0763 →
Continuity (2)
Provisional Application 63348913 · Jun 3, 2022
Related Publication 20230392803A1 · Dec 7, 2023
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