IP Library Granted Patent US 10,744,439
Granted Patent B2
US 10,744,439 · App. 15/632,122 · Granted Aug 18, 2020

Compound air filter and method of removing airborne molecular contaminants and volatile organic compounds therefrom

Inventors: Jere James Wall (Helendale, CA); Steve Williams (Cherry Valley, CA)
Assignee: K&N Engineering, Inc.
B01D46/0005B01D27/08B01D46/0016B01D46/0036B01D46/02B01D46/10B01D46/521B01D53/02B03C9/00F02M35/024B01D46/00B01D2239/0613B01D2239/0618B01D2253/10B01D2253/102B01D2257/708B01D2258/06B01D2259/4566B01D2265/06B01D2275/10B01D2279/40
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Quick Facts
Patent No.
US 10,744,439
App. No.
15/632,122
Granted
Aug 18, 2020
Kind
B2
Abstract

An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within building spaces is disclosed. The air filter comprises a support frame having a shape and size suitable to orient the air filter within a HVAC system. A compound filter medium is retained within the support frame to remove the airborne molecular contaminants and VOCs from air flowing through the HVAC system. A method of removing airborne molecular contaminants and volatile organic compounds (VOCs) from air is disclosed that includes an operation of coupling a first media layer, comprising uniformly disposed pleats, with a second media layer, comprising a woven fiber material, so as to form a compound filter medium.

Claims (14)

1. An air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within an enclosed space, comprising:

a support frame comprising a shape and size configured for orienting the air filter within a heating, ventilation, and air conditioning (HVAC) system;

a compound filter medium comprising at least two filter media layers, that are retained within the support frame and configured to remove the airborne molecular contaminants and VOCs from the air flowing through the HVAC system, at least one of the at least two media layers comprises of a multiplicity of pleats, wherein a first media layer of the at least two media layers includes embossed shapes disposed in a parallel direction with airflow and between adjacent pleats of the multiplicity of pleats so as to maintain the multiplicity of pleats in a spaced configuration, wherein the embossed shapes are longitudinally aligned such that apices of adjacent pleats contact one another, and each pleat includes a first embossed shape protruding from a first side and a second embossed shape protruding from a second side opposite the first side, and wherein a second media layer is comprised of a woven material adhered to a down-stream side of the first media layer with respect to the airflow; and

a support layer coupled with the compound filter medium and configured to maintain a uniform distribution between the multiplicity of pleats, wherein a first support layer of the one or more support layers includes a wire mesh that is co-pleated and configured to provide reinforcing support.

2. The air filter of claim 1 , wherein at least one of the at least two filter media layers is configured to remove the VOCs from the air.

3. The air filter of claim 1 , wherein the filter includes an electrostatic component.

4. The air filter of claim 1 , wherein one of the at least two filter media layers is configured to maintain a uniform distribution of the multiplicity of pleats.

5. A method of removing airborne molecular contaminants and volatile organic compounds (VOCs) from air, the method comprising:

coupling a first media layer, comprising uniformly disposed pleats, with a second media layer, comprising a woven fiber material, so as to form a compound filter medium, wherein the first media layer includes embossed shapes disposed in a parallel direction with airflow and between adjacent pleats so as to maintain the pleats in a spaced configuration, wherein the embossed shapes are longitudinally aligned such that apices of adjacent pleats contact one another, and each pleat includes a first embossed shape protruding from a first side and a second embossed shape protruding from a second side opposite the first side, and wherein the second media layer is comprised of a woven material adhered to a down-stream side of the first media layer with respect to the airflow;

incorporating one or more support layers into the compound filter medium to impart structural integrity to the air filter, wherein a first support layer of the one or more support layers includes a wire mesh that is co-pleated and configured to provide reinforcing support;

extending a support frame along a perimeter of the compound filter medium; and

configuring the support frame to retain the compound filter medium and orient the air filter within a heating, ventilation, and air conditioning (HVAC) system.

6. The method of claim 5 , wherein extending further comprises molding a rim onto the perimeter such that the compound filter medium is retained therein.

7. The method of claim 5 , wherein coupling further comprises extending lines of adhesive along a width of the first media layers, perpendicular to the pleats, so as to adhere the second media layer to the first media layer.

Assignments (6)
PATENT SECURITY AGREEMENT – SUPPLEMENT NO. 1 Recorded Oct 25, 2024
From: K & N ENGINEERING, INC.
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 069268/0013 →
SECURITY INTEREST Recorded Oct 24, 2024
From: K & N ENGINEERING, INC.
To: FIFTH THIRD BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 071008/0165 →
RELEASE OF SECURITY INTEREST Recorded Feb 15, 2023
From: ANKURA TRUST COMPANY, LLC
To: K & N ENGINEERING, INC.
Reel/Frame 062760/0937 →
SUPERPRIORITY PATENT SECURITY AGREEMENT Recorded Oct 17, 2022
From: K & N ENGINEERING, INC.
To: ANKURA TRUST COMPANY, LLC
Reel/Frame 061689/0682 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2020
From: WILLIAMS, STEVE
To: K&N ENGINEERING, INC.
Reel/Frame 052869/0794 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2019
From: WALL, JERE JAMES
To: K&N ENGINEERING, INC.
Reel/Frame 050438/0532 →
Continuity (2)
Provisional Application 62354549 · Jun 24, 2016
Related Publication 20170368488A1 · Dec 28, 2017