IP Library Granted Patent US 11,293,653
Granted Patent B1
US 11,293,653 · App. 16/161,997 · Granted Apr 5, 2022

Magnetically sealed air-cleaner door

Inventor: Gregg W. Burnett (Royse City, TX)
F24F8/10B01D46/0002B01D2265/023B01D2271/025
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Quick Facts
Patent No.
US 11,293,653
App. No.
16/161,997
Granted
Apr 5, 2022
Kind
B1
Abstract

A door for an air cleaner housing is disclosed. The door comprises a baseplate having a first side and a second side, a gasket attached to the first side of the baseplate, a backplate connected to the second side of the baseplate, and a front plate spaced apart from the backplate by spacers, wherein the baseplate, the backplate and the front plate are attached by a plurality of fasteners. Slots may be formed in the baseplate, and a magnet is positioned in each of the slots. The baseplate, the backplate, and the gasket dimensions may be adapted to fit within an opening in an air-cleaner housing. The magnets may be positioned to hold the door in position the housing opening. The gasket comprises a cellular urethane that seals the door to the housing to prevent air leaks.

Claims (29)

1. A device comprising:

a baseplate having a first side and a second side;

a gasket attached to the first side of the baseplate;

a backplate connected to the second side of the baseplate; and

a front plate spaced apart from the backplate by spacers, the baseplate, the backplate and the front plate attached to one another by a plurality of fasteners and is removably-attached to a heating, ventilation, and air conditioning (HVAC) system as a door.

2. The device of claim 1 , wherein slots are formed in the baseplate, and wherein a magnet is positioned in each of the slots.

3. The device of claim 1 , wherein the fasteners comprise flush-head studs.

4. The device of claim 1 , wherein the baseplate comprises a thermoplastic polymer.

5. The device of claim 1 , wherein the backplate, the front plate, and the spacers comprise a nonmagnetic material.

6. The device of claim 1 , wherein the backplate, the front plate, and the spacers comprise aluminum.

7. The device of claim 1 , wherein the gasket comprises a cellular urethane.

8. The device of claim 1 , wherein the gasket is attached to the baseplate using an adhesive.

9. The device of claim 1 , wherein the baseplate, the backplate, and the gasket have same height and width dimensions.

10. The device of claim 1 , wherein the baseplate, the backplate, and the gasket dimensions are adapted to fit within an opening in an air-cleaner housing in the HVAC system.

11. A device, comprising:

a housing for an air quality component for a heating, ventilation, and air conditioning (HVAC) system, the housing comprising:

an open first side and an open second side, wherein the open first side and the open second side are configured to be attached to ducting in the HVAC system;

a hollow interior configured to receive the air quality component so that airflow between the open first side and the open second side flow through the air quality component; and

an opening to the hollow interior, the opening configured to allow access to the air quality component; and

a door configured to seal the opening, the door comprising:

a baseplate having a first side and a second side;

a gasket attached to the first side of the baseplate;

a backplate connected to the second side of the baseplate; and

a front plate spaced apart from the backplate by spacers, the baseplate, the backplate and the front plate attached to one another by a plurality of fasteners.

12. The device of claim 11 , wherein slots are formed in the baseplate, and wherein a magnet is positioned in each of the slots.

13. The device of claim 12 , wherein the opening to the hollow interior comprises metal, and wherein the door is held in place by magnetic force between the door and the housing.

14. The device of claim 11 , wherein the air quality component is an air filter.

15. The device of claim 11 , wherein the baseplate comprises a thermoplastic polymer, and wherein the backplate, the front plate, and the spacers comprise a nonmagnetic material.

16. The device of claim 11 , wherein the gasket comprises a cellular urethane that seals the door against the housing to prevent air leaks.

Assignments (3)
MERGER Recorded Jun 30, 2026
From: DUST FREE, LP
To: RECTORSEAL, LLC
Reel/Frame 075131/0129 →
SECURITY INTEREST Recorded May 27, 2025
From: BALCO, INC.; WHITMORE MANUFACTURING, LLC; SMOKE GUARD, INC.; RECTORSEAL, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 071393/0293 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2024
From: BURNETT, GREGG W.
To: DUST FREE, LP
Reel/Frame 066079/0881 →
Continuity (1)
Provisional Application 62734583 · Sep 21, 2018
Cited By (1)
US 12,203,677