CA2573515A1 - Retrofit cover for furnace filter opening - Google Patents
Retrofit cover for furnace filter opening Download PDFInfo
- Publication number
- CA2573515A1 CA2573515A1 CA 2573515 CA2573515A CA2573515A1 CA 2573515 A1 CA2573515 A1 CA 2573515A1 CA 2573515 CA2573515 CA 2573515 CA 2573515 A CA2573515 A CA 2573515A CA 2573515 A1 CA2573515 A1 CA 2573515A1
- Authority
- CA
- Canada
- Prior art keywords
- filter
- cover
- frame
- duct
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A method and apparatus is provided for sealing a removable filter in a duct supply air to a forced air furnace. The duct has a slot-shaped aperture sized to allow a filter to be inserted through the aperture and into the duct so that the filter is positioned across a cross-sectional area of the duct. Once the filter is positioned inside the duct, a cover sized to completely cover the aperture is magnetically attached over the aperture, holding the filter in place and sealing the duct from the air surrounding duct and the forced air furnace.
Description
RETROFIT COVER FOR FURNACE FILTER OPF,NING
This invention is in the field of heating systems and more particularly filter assemblies for forced air furnace systems.
BACKGROUND
Forced air fumaces for heating buildings use a series of ducts to transport the air that has been heated (or cooled) by the furnace throughout the building the forced air furnace is t0 installed in. Heated (or cooled) air is blown from the forced air furnace through the ducts and into the building.
Air is fed into the forced air furnace from an air intake (a system of ducts that draws air froin inside the building as a cold air return and in sonie cases at least a portion of air t5 from outside the huilding). A removable filter is placed between the air intake and the motor, fan and heating coil of the forced air fumace. In some forced air furnaces the filter is located in the forced air furnace itself, however, in many applications the filter is placed in the ducting coming from the air intake, usually close to, if not immediately adjacent, the forced air furnace.
The purpose of the filter is to remove dust and other potentially harmful particles from the incoming air stream to prevent the dust and other contaminants from eventually damaging the components of the forced air furnace. such as the motor, fan and other internal components. Without a filter, the forced air furnace can eventually become clogged with dust that prevents the forced air furnace from working properly or may even stop the forced air fumace from working at all and damaging the fumace. In some cases, some of these filters can also remove particles and other contaminants from the incoming air to improve the air quality in the building.
These filters are made to be removal. Dust and other contaminants build up on the filters and the filters must be removed periodically and either cleaned or replaced.
Typically, a to slot is placed in the ducting system adjacent to the forced air furnace in the cold air return ducting. The filter is sized to fit the cross-section of the ducting and the slot is sized slightly wider than the filter. The filter is installed by inserted in the duct by sliding it through the slot where a track channel keeps it in place in the duct and removed by sliding it back out of the slot.
A panel is comrnonly placed over the slot to prevent air leakage from the slot and seal the inconung duct. In some jurisdictions it is now required to provide a cover that seals the filter in. Some of these panels screw into place with the aid of screws and hole, others snap into place with some type of clip structure and still others use bent sheet metal and arc pressed into the slot with flanges that slide around the edges of the filter to hold the panel in place. These covers are often tricky to use and the edges can be quite sharp.
Some of these panels such as patiels that screw into place need a screw driver and take some time to remove and put back in place. Often they do not provide a very good seal against air from the surrounding area entering the duct through the slot.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an apparatus for covering a removable filter place in a heating system that overcomes problems in the prior art.
to A magnetic cover is provided that is sized to fit over a slot in a filter assembly. When a removal filter is installed through the slot and into the filter assembly in a heating system, the cover is placed over a slot and magnetically held in place to seal the removal filter into the duct.
DESCRIPTION OF THE DRAWINGS
While the invention is claimed in the concluding portions hereof, preferred embodinient-s are provided in the accompanying detailed description which may be best understood in conjnnction with the acconipanying diagrams where like parts in each of the several diagrams are labeled with like numbers, and where:
Fig. 1 is a perspective view of a removal filter assembly in an exploded view;
and Fig. 2 is a perspective view of a removal filter assembly in an assembled state.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS
Fig. 1 illustrates an exploded view of a filter assembly 10 that is installed in a heating system to protect a forced air furnace. The filter assembly 10 comprises: a frame 20; a removable filter 30; and a cover 40.
The frame 20 is installed in the duct work between the air intake and the forced air fiirnace (typically adjacent the forcaed air furnace) and is made of a magnetic material, typically steel. The frame 20 has the same cross-sectional area as the duct work. A slot 24 is provided in the side of the frame 20 sized to fit the filter 30 with track channels 22 0 in the frame 20 to guide the filter 20 into place in the frame 20.
The filter 30 is positioned in place by inserting the filter 30 through the slot 24 and into the track channels 22 where the track channels 22 guide the filter 30 into its proper location in the frame 20.
The cover 40 is a magnetic stri.p which is preferably flexible. The cover 40 is sized to cover the slot 24. When the filter 30 is inserted in its proper position in the frame 20, the cover 40 is placed over the slot 24 where it is magnetically held in place against the frame 20, covering the slot 24 and seafing the filter 30 in the filter assembly 10. To remove the filter 30 a user simply has to pull the cover 40 off the slot 24 and remove the filter 30, simply placing the cover 40 back over the slot 24 when the cleaned or replaced filter 30 is inserted back in the filter assembly 10.
Optionally, advertising can be placed on outside surface 42 of the cover 40 so that it faces outward when the cover 40 is placed on the filter assembly 10.
Fig. 2 illustrates the filter assembly 10 with all of the components installed.
The foregoing is considered as illustrative only of the principles of the invention.
Further, since numerous changes and modifications will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to are intended to fall within the scope of the claimed invention.
This invention is in the field of heating systems and more particularly filter assemblies for forced air furnace systems.
BACKGROUND
Forced air fumaces for heating buildings use a series of ducts to transport the air that has been heated (or cooled) by the furnace throughout the building the forced air furnace is t0 installed in. Heated (or cooled) air is blown from the forced air furnace through the ducts and into the building.
Air is fed into the forced air furnace from an air intake (a system of ducts that draws air froin inside the building as a cold air return and in sonie cases at least a portion of air t5 from outside the huilding). A removable filter is placed between the air intake and the motor, fan and heating coil of the forced air fumace. In some forced air furnaces the filter is located in the forced air furnace itself, however, in many applications the filter is placed in the ducting coming from the air intake, usually close to, if not immediately adjacent, the forced air furnace.
The purpose of the filter is to remove dust and other potentially harmful particles from the incoming air stream to prevent the dust and other contaminants from eventually damaging the components of the forced air furnace. such as the motor, fan and other internal components. Without a filter, the forced air furnace can eventually become clogged with dust that prevents the forced air furnace from working properly or may even stop the forced air fumace from working at all and damaging the fumace. In some cases, some of these filters can also remove particles and other contaminants from the incoming air to improve the air quality in the building.
These filters are made to be removal. Dust and other contaminants build up on the filters and the filters must be removed periodically and either cleaned or replaced.
Typically, a to slot is placed in the ducting system adjacent to the forced air furnace in the cold air return ducting. The filter is sized to fit the cross-section of the ducting and the slot is sized slightly wider than the filter. The filter is installed by inserted in the duct by sliding it through the slot where a track channel keeps it in place in the duct and removed by sliding it back out of the slot.
A panel is comrnonly placed over the slot to prevent air leakage from the slot and seal the inconung duct. In some jurisdictions it is now required to provide a cover that seals the filter in. Some of these panels screw into place with the aid of screws and hole, others snap into place with some type of clip structure and still others use bent sheet metal and arc pressed into the slot with flanges that slide around the edges of the filter to hold the panel in place. These covers are often tricky to use and the edges can be quite sharp.
Some of these panels such as patiels that screw into place need a screw driver and take some time to remove and put back in place. Often they do not provide a very good seal against air from the surrounding area entering the duct through the slot.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an apparatus for covering a removable filter place in a heating system that overcomes problems in the prior art.
to A magnetic cover is provided that is sized to fit over a slot in a filter assembly. When a removal filter is installed through the slot and into the filter assembly in a heating system, the cover is placed over a slot and magnetically held in place to seal the removal filter into the duct.
DESCRIPTION OF THE DRAWINGS
While the invention is claimed in the concluding portions hereof, preferred embodinient-s are provided in the accompanying detailed description which may be best understood in conjnnction with the acconipanying diagrams where like parts in each of the several diagrams are labeled with like numbers, and where:
Fig. 1 is a perspective view of a removal filter assembly in an exploded view;
and Fig. 2 is a perspective view of a removal filter assembly in an assembled state.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS
Fig. 1 illustrates an exploded view of a filter assembly 10 that is installed in a heating system to protect a forced air furnace. The filter assembly 10 comprises: a frame 20; a removable filter 30; and a cover 40.
The frame 20 is installed in the duct work between the air intake and the forced air fiirnace (typically adjacent the forcaed air furnace) and is made of a magnetic material, typically steel. The frame 20 has the same cross-sectional area as the duct work. A slot 24 is provided in the side of the frame 20 sized to fit the filter 30 with track channels 22 0 in the frame 20 to guide the filter 20 into place in the frame 20.
The filter 30 is positioned in place by inserting the filter 30 through the slot 24 and into the track channels 22 where the track channels 22 guide the filter 30 into its proper location in the frame 20.
The cover 40 is a magnetic stri.p which is preferably flexible. The cover 40 is sized to cover the slot 24. When the filter 30 is inserted in its proper position in the frame 20, the cover 40 is placed over the slot 24 where it is magnetically held in place against the frame 20, covering the slot 24 and seafing the filter 30 in the filter assembly 10. To remove the filter 30 a user simply has to pull the cover 40 off the slot 24 and remove the filter 30, simply placing the cover 40 back over the slot 24 when the cleaned or replaced filter 30 is inserted back in the filter assembly 10.
Optionally, advertising can be placed on outside surface 42 of the cover 40 so that it faces outward when the cover 40 is placed on the filter assembly 10.
Fig. 2 illustrates the filter assembly 10 with all of the components installed.
The foregoing is considered as illustrative only of the principles of the invention.
Further, since numerous changes and modifications will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all such suitable changes or modifications in structure or operation which may be resorted to are intended to fall within the scope of the claimed invention.
Claims (12)
1. A filter assembly for a heating system having a forced air system, the assembly comprising:
a frame positionable as a portion of a duct supplying air to a forced air furnace, the frame having a slot-shaped aperture sized to accept a removable filter;
and a cover sized to cover the aperture when the cover is placed over the aperture and attachable over the aperture in the frame by magnetic force.
a frame positionable as a portion of a duct supplying air to a forced air furnace, the frame having a slot-shaped aperture sized to accept a removable filter;
and a cover sized to cover the aperture when the cover is placed over the aperture and attachable over the aperture in the frame by magnetic force.
2. The filter assembly of claim 1 wherein the aperture runs substantially a height of the frame.
3. The filter assembly of claim 1 or 2 wherein the frame has a track channel for guiding a removable filter into position in the frame.
4. The filter assembly of any one of claims 1 to 3 wherein the cover is magnetic and magnetic material surrounds the aperture.
5. The filter assembly of any one of claims 1 to 4 wherein the cover is flexible.
6. The filter assembly of any one of claims 1 to 5 wherein the cover has advertising on an outside surface.
7. The filter assembly of any one of claims 1 to 6 wherein the frame has substantially the same cross-sectional area as the duct.
8. A method of for sealing a filter in an air duct supplying air to a forced air furnace, the method comprising:
providing a duct supplying air to a forced air furnace, the duct having a slot-shaped aperture;
inserting a filter through the aperture into an interior of the duct so that the filter is positioned across a cross-sectional area of the duct ; and placing a cover over the aperture held in place by magnetic force and sealing the filter inside the duct.
providing a duct supplying air to a forced air furnace, the duct having a slot-shaped aperture;
inserting a filter through the aperture into an interior of the duct so that the filter is positioned across a cross-sectional area of the duct ; and placing a cover over the aperture held in place by magnetic force and sealing the filter inside the duct.
9. The method of claim 8 wherein the cover is magnetic and magnetic material surrounds the aperture.
10. The method of claim 8 or 9 wherein the aperture runs substantially a height of the duct.
11. The method of any one of claims 8 to 10 wherein the cover is flexible.
12. The method of any one of claims 8 to 11 wherein the cover has an outer surface containing advertising.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS
Fig. 1 illustrates an exploded view of a filter assembly 10 that is installed in a heating system to protect a forced air furnace. The filter assembly 10 comprises: a frame 20; a removable filter 30; and a cover 40.
The frame 20 is installed in the duct work between the air intake and the forced air furnace (typically adjacent the forced air furnace) and is made of a magnetic material, typically steel. The frame 20 has the same cross-sectional area as the duct work. A slot 24 is provided in the side of the frame 20 sized to fit the filter 30 with track channels 22 in the frame 20 to guide the filter 30 into place in the frame 20.
The filter 30 is positioned in place by inserting the filter 30 through the slot 24 and into the track channels 22 where the track channels 22 guide the filter 30 into its proper location in the frame 20.
The cover 40 is a magnetic strip which is preferably flexible. The cover 40 is sized to cover the slot 24. When the filter 30 is inserted in its proper position in the frame 20, the
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS
Fig. 1 illustrates an exploded view of a filter assembly 10 that is installed in a heating system to protect a forced air furnace. The filter assembly 10 comprises: a frame 20; a removable filter 30; and a cover 40.
The frame 20 is installed in the duct work between the air intake and the forced air furnace (typically adjacent the forced air furnace) and is made of a magnetic material, typically steel. The frame 20 has the same cross-sectional area as the duct work. A slot 24 is provided in the side of the frame 20 sized to fit the filter 30 with track channels 22 in the frame 20 to guide the filter 30 into place in the frame 20.
The filter 30 is positioned in place by inserting the filter 30 through the slot 24 and into the track channels 22 where the track channels 22 guide the filter 30 into its proper location in the frame 20.
The cover 40 is a magnetic strip which is preferably flexible. The cover 40 is sized to cover the slot 24. When the filter 30 is inserted in its proper position in the frame 20, the
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2573515 CA2573515A1 (en) | 2007-01-09 | 2007-01-09 | Retrofit cover for furnace filter opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2573515 CA2573515A1 (en) | 2007-01-09 | 2007-01-09 | Retrofit cover for furnace filter opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2573515A1 true CA2573515A1 (en) | 2008-07-09 |
Family
ID=39595858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2573515 Abandoned CA2573515A1 (en) | 2007-01-09 | 2007-01-09 | Retrofit cover for furnace filter opening |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2573515A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2010888C2 (en) * | 2013-05-29 | 2014-12-02 | Virus Free Air B V | A tube-like element for use in a duct system and method for manufacturing. |
-
2007
- 2007-01-09 CA CA 2573515 patent/CA2573515A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2010888C2 (en) * | 2013-05-29 | 2014-12-02 | Virus Free Air B V | A tube-like element for use in a duct system and method for manufacturing. |
| WO2014193233A1 (en) * | 2013-05-29 | 2014-12-04 | Virus Free Air B.V. | A tube-like element for use in a duct system and method for manufacturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |