CA2091429C - Pivoting flue liner adaptor - Google Patents
Pivoting flue liner adaptor Download PDFInfo
- Publication number
- CA2091429C CA2091429C CA 2091429 CA2091429A CA2091429C CA 2091429 C CA2091429 C CA 2091429C CA 2091429 CA2091429 CA 2091429 CA 2091429 A CA2091429 A CA 2091429A CA 2091429 C CA2091429 C CA 2091429C
- Authority
- CA
- Canada
- Prior art keywords
- firebox
- top panel
- flue liner
- plate
- flue
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/1806—Mounting of closed stoves in a fireplace
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Clamps And Clips (AREA)
Abstract
A flue liner adaptor connects an exhaust opening in a top panel of a firebox to a flue liner within the chimney. The adaptor is pivoted and therefore does not have to be slid into place which can cause jamming problems. The flue liner adaptor comprises a plate having one end engageable in a clip at a near corner of the top panel of the firebox, the plate pivotable and removable from the clip, the plate having an aperture therein to match the exhaust opening in the top panel when the plate is flush with the top panel. A connection on the firebox retains the plate flush with the top panel, and a sleeve is located over the aperture in the plate and attached thereto, the sleeve extends upwards and is adapted for connection to the flue liner.
Description
PIVOTING FLUE LINER ADAPTOR
This invention relates to fireplace inserts and more specifically to a flue liner adaptor for connecting to a flue liner in a chimney flue upon installation of a firebox in a fireplace.
In the installation of a fireplace insert, known as a firebox, it is necessary to connect the exhaust opening in the firebox to a flue liner within a chimney flue to direct flue gases up the chimney. An exhaust opening is provided in a top panel of a firebox which is generally positioned beneath the chimney opening when the firebox is installed in the fireplace. A flue liner or duct in the chimney is connected to the exhaust opening of the firebox. This flue liner extends upwards into the chimney to ensure that the exhaust gases are directed up the chimney and no exhaust gas leaks into the space between the firebox and the fireplace. A leakage of exhaust gas into a room can provide an environmental health hazard and is unacceptable.
The connection between the exhaust opening in the top panel of the firebox and the flue liner generally presents some problems because there is little space available between the firebox and the interior surfaces of the fireplace once the firebox is installed. This makes it difficult to manoeuvre the firebox into the fireplace and at the same time connect the exhaust opening in the firebox to a flue liner in the chimney.
A method and adaptor for installing a flue liner to a firebox is shown in Canadian Patent 1,281,249 issued March 12, 1991 to Rieger. This patent provides an adaptor which has a slider plate to slide between slider brackets on the firebox to allow assembly between the ~0914~9 _ 2 _ firebox and the flue liner. One problem that has been encountered with such an arrangement is that the slider plate does not easily slide without binding in the slider brackets. If the clearance is too great to provide ease of sliding, then exhaust gas is able to escape and this is not acceptable. One is sliding the slider plate into the brackets at the same time that the firebox is pushed into the fireplace. If the firebox is not pushed in exactly straight, then the slider plate may deform and jam. Most liners are typically formed of lightweight flexible material and in some cases crushing or deformation can occur which is not always easy to detect after installation. The fact that fireplace inserts or fireboxes are cumbersome and heavy and the flue liners are light and flexible can pose a hazard to safety as any deformation or jamming of the slider plate may go undetected.
Another requirement for a flue liner adaptor is not only for the installation of a firebox into the fireplace and connection to the flue liner, but also to permit removal of the firebox from time to time for maintenance purposes and inspection. It has been found that a sliding plate sliding within two brackets tends to become warped or distorted after repeated cycles of heating and cooling. Furthermore, soot and other combustion products can cause a slider plate to jam within the brackets, thus removal of a slider plate by sliding can present a jamming problem. Even small amounts of combustion products such as soot can jam the sliding plate and thus make it difficult to remove.
It is an aim of the present invention to provide a flue liner adaptor for connection between an exhaust opening in a top panel of a firebox and a flue liner within_a chimney. The flue liner adaptor is pivoted at one end to swing downwards and be clamped to the top panel of the flue box. The flue liner adaptor may be removed by simply unclamping at one end and pivoting upwards. Thus, one does not have to slide an adaptor within sliding brackets for installation of an insert.
The firebox is first installed, and then the adaptor is fitted and pivoted down to be clamped in position.
Similarly, when removing the flue liner adaptor for maintenance purposes, it may be unclamped and pivoted upwards, thus soot or other deposits formed thereon do not jam the flue liner adaptor to hold it in the installed position.
The present invention provides a flue liner adaptor for connection to an exhaust opening in a top panel of a firebox to join to a flue liner, the firebox adapted to be installed in a fireplace having a chimney flue, the flue liner adaptor comprising:
a plate means having one end engageable in a clip means at a rear corner of the top panel of the firebox, the plate means being pivotable and removable from the clip means, the plate means having an aperture therein to match the exhaust opening in the top panel of the firebox when the plate means is flush with the top panel;
connection means on the firebox to retain the plate means flush with the top panel of the firebox comprising a front flange at a front edge of the plate means extending upwardly to match a firebox flange at the front of the top panel of the firebox with fastening means to join the front flange and the firebox flange; and sleeve means located over the aperture in the plate means and attached thereto, the sleeve means extending upwards and adapted for connection to the flue liner.
In another aspect, the present invention provides a method of installing a firebox in a fireplace and connecting an exhaust opening in a top panel of the firebox to a flue liner within a chimney flue, comprising the steps of:
fitting a sleeve means of a flue liner adaptor to mate with the flue liner, the flue liner adaptor having a flat plate with an aperture in the flat plate under the sleeve means;
installing a mounting clip on a rear edge of the top panel of the firebox;
inserting the firebox into the fireplace;
fitting a rear edge of the flat plate of the flue liner adaptor into the mounting clip, and pivoting the flat plate downwards to rest flush on the top panel of the firebox with the aperture in the flat plate over the exhaust opening in the top panel of the firebox, and fastening a substantially vertical front flange on the front edge of the flue liner adapter to a firebox flange at the front of the top panel of the firebox to clamp the flue liner adaptor to the top panel of the firebox to ensure a sealed exhaust connection between the exhaust opening in the firebox and the flue liner.
In drawings which illustrate embodiments of the present invention, Figure 1 is an isometric view of a firebox for installation in a fireplace having a flue liner adaptor positioned for fitting within a clip on the near corner of the firebox for pivoting to a sealed connection, Figure 2 is a top view of a flue liner adaptor according to one embodiment of the present invention, Figure 3 is a side elevational view of the flue liner adaptor shown in Figure 2, Figures 4, 5 and 6 are side elevational views of a fireplace showing steps of installing a firebox therein.
- 4a -A firebox 10 is shown in Figure 1. The firebox is generally rectangular in shape and may be a gas fired firebox or a solid fuel firebox for either wood, coal or other types solid fuel. The firebox 10 has a top panel 11 which extends from a near corner a portion of the way down the back of the firebox 10. The top panel 11 has a front firebox flange 12 extending upwards. An adaptor clip 13 is shown positioned at the rear corner of the top panel 11 in approximately the centre position and adjacent to it in the top panel 11 is an exhaust opening 14 for flue gases to escape. A flue liner adaptor plate _ 5 _ 15, shown in more detail in Figures 2 and 3, has a rear edge 16 which fits under the adaptor clip 13 attached to the top panel 11. The adaptor plate 15 has side edges that extend up and provide a positioning arrangement for positioning the plate 15 to the adaptor clip 13. The plate 15 has a width just sufficient for the near edge 16 to fit under the clip 13 and the side edges locate the plate 15 in the centre of the top panel 11. A front flange 17 at the front edge of the plate 15 extends upwards approximately the same height as the front firebox flange 12. Upon installation, the flue liner adaptor plate 15 has the rear edge 16 inserted under the clip 13, it is then pivoted downwards until the plate 15 is resting flush on the top panel 11.
An opening 19 is provided in the flue liner adaptor plate 15, the opening 19 is exactly positioned to mate with the exhaust opening 14 in the top panel 11 of the firebox 10. A sleeve 20 extends up from the exhaust opening 19 in the flue liner adaptor plate 15 and is connected to the flue liner adaptor plate 15. The sleeve 20 is shown fitting over a flue liner or duct in a chimney flue. It is customary to have the sleeve 20 fitting over the flue liner for gas fired fireplaces and to have the sleeve 20 fitting into the flue liner for solid fuel fireplaces.
Upon installation, the flue liner adaptor plate 15 has the rear edge 16 pushed under the clip 13 of the firebox, and is then pivoted downwards. A hole 21 in the front firebox flange 12 mates with a hole 22 in the front flange 17 of the flue liner adaptor plate 15. The flue liner adaptor plate 15 is pushed down flush with the top panel 11 so that there is a seal between the exhaust opening 14 in the top panel 11 and the adaptor plate 15 and no exhaust gases can escape. A machine screw is inserted between holes 21 and 22 to ensure that the flue 209I~29 liner adaptor plate 15 is pressed firmly downwards on the top panel 11 and is held to form a sealed connection.
As seen in more detail in Figures 4, 5 and 6, a flue liner 23 within a chimney 24 of a fireplace 25 has a flue liner adaptor plate 15 connected to it by the sleeve 20 fitting over the end of the flue liner 23. In another embodiment the sleeve 20 fits into the end of the flue liner 23. As shown, the flue liner 23 is flexible. In other embodiments the flue liner 23 need not specifically be flexible.
For installation of a firebox 10, the firebox is installed as shown in Figure 5 and pushed into place and only when it is in place the flue liner adaptor plate 15 has its rear edge 16 pushed under the clip 13 attached to the near corner of the firebox 10. The side edges of the flue liner adaptor plate 15 ensure that the adaptor plate is centred on the firebox 10, the adaptor plate 15 is then pivoted downwards as shown in Figure 6. A bolt is fitted between the hole 21 in the front firebox flange 12 and hole 22 of the front flange 17 of the adaptor plate 15 so that the adaptor plate 15 is flush with the tap panel 11 to provide a seal preventing exhaust gases from escaping. The connection of the flue liner adaptor plate 15 to the firebox 10 is achieved only after the firebox is installed in the fireplace 25.
If it is necessary to remove the firebox 10, then the bolt or screw is removed from holes 21 and 22, the adaptor plate 15 lifted at the front and pivoted open where it then may be moved forward to disconnect it from the clip 13. The firebox 10 can then be slid out of the fireplace leaving the adaptor plate 15 connected to the flue liner 23.
Various changes may be made to the embodiments shown herein without departing from the scope of the present invention which is limited only by the following claims.
This invention relates to fireplace inserts and more specifically to a flue liner adaptor for connecting to a flue liner in a chimney flue upon installation of a firebox in a fireplace.
In the installation of a fireplace insert, known as a firebox, it is necessary to connect the exhaust opening in the firebox to a flue liner within a chimney flue to direct flue gases up the chimney. An exhaust opening is provided in a top panel of a firebox which is generally positioned beneath the chimney opening when the firebox is installed in the fireplace. A flue liner or duct in the chimney is connected to the exhaust opening of the firebox. This flue liner extends upwards into the chimney to ensure that the exhaust gases are directed up the chimney and no exhaust gas leaks into the space between the firebox and the fireplace. A leakage of exhaust gas into a room can provide an environmental health hazard and is unacceptable.
The connection between the exhaust opening in the top panel of the firebox and the flue liner generally presents some problems because there is little space available between the firebox and the interior surfaces of the fireplace once the firebox is installed. This makes it difficult to manoeuvre the firebox into the fireplace and at the same time connect the exhaust opening in the firebox to a flue liner in the chimney.
A method and adaptor for installing a flue liner to a firebox is shown in Canadian Patent 1,281,249 issued March 12, 1991 to Rieger. This patent provides an adaptor which has a slider plate to slide between slider brackets on the firebox to allow assembly between the ~0914~9 _ 2 _ firebox and the flue liner. One problem that has been encountered with such an arrangement is that the slider plate does not easily slide without binding in the slider brackets. If the clearance is too great to provide ease of sliding, then exhaust gas is able to escape and this is not acceptable. One is sliding the slider plate into the brackets at the same time that the firebox is pushed into the fireplace. If the firebox is not pushed in exactly straight, then the slider plate may deform and jam. Most liners are typically formed of lightweight flexible material and in some cases crushing or deformation can occur which is not always easy to detect after installation. The fact that fireplace inserts or fireboxes are cumbersome and heavy and the flue liners are light and flexible can pose a hazard to safety as any deformation or jamming of the slider plate may go undetected.
Another requirement for a flue liner adaptor is not only for the installation of a firebox into the fireplace and connection to the flue liner, but also to permit removal of the firebox from time to time for maintenance purposes and inspection. It has been found that a sliding plate sliding within two brackets tends to become warped or distorted after repeated cycles of heating and cooling. Furthermore, soot and other combustion products can cause a slider plate to jam within the brackets, thus removal of a slider plate by sliding can present a jamming problem. Even small amounts of combustion products such as soot can jam the sliding plate and thus make it difficult to remove.
It is an aim of the present invention to provide a flue liner adaptor for connection between an exhaust opening in a top panel of a firebox and a flue liner within_a chimney. The flue liner adaptor is pivoted at one end to swing downwards and be clamped to the top panel of the flue box. The flue liner adaptor may be removed by simply unclamping at one end and pivoting upwards. Thus, one does not have to slide an adaptor within sliding brackets for installation of an insert.
The firebox is first installed, and then the adaptor is fitted and pivoted down to be clamped in position.
Similarly, when removing the flue liner adaptor for maintenance purposes, it may be unclamped and pivoted upwards, thus soot or other deposits formed thereon do not jam the flue liner adaptor to hold it in the installed position.
The present invention provides a flue liner adaptor for connection to an exhaust opening in a top panel of a firebox to join to a flue liner, the firebox adapted to be installed in a fireplace having a chimney flue, the flue liner adaptor comprising:
a plate means having one end engageable in a clip means at a rear corner of the top panel of the firebox, the plate means being pivotable and removable from the clip means, the plate means having an aperture therein to match the exhaust opening in the top panel of the firebox when the plate means is flush with the top panel;
connection means on the firebox to retain the plate means flush with the top panel of the firebox comprising a front flange at a front edge of the plate means extending upwardly to match a firebox flange at the front of the top panel of the firebox with fastening means to join the front flange and the firebox flange; and sleeve means located over the aperture in the plate means and attached thereto, the sleeve means extending upwards and adapted for connection to the flue liner.
In another aspect, the present invention provides a method of installing a firebox in a fireplace and connecting an exhaust opening in a top panel of the firebox to a flue liner within a chimney flue, comprising the steps of:
fitting a sleeve means of a flue liner adaptor to mate with the flue liner, the flue liner adaptor having a flat plate with an aperture in the flat plate under the sleeve means;
installing a mounting clip on a rear edge of the top panel of the firebox;
inserting the firebox into the fireplace;
fitting a rear edge of the flat plate of the flue liner adaptor into the mounting clip, and pivoting the flat plate downwards to rest flush on the top panel of the firebox with the aperture in the flat plate over the exhaust opening in the top panel of the firebox, and fastening a substantially vertical front flange on the front edge of the flue liner adapter to a firebox flange at the front of the top panel of the firebox to clamp the flue liner adaptor to the top panel of the firebox to ensure a sealed exhaust connection between the exhaust opening in the firebox and the flue liner.
In drawings which illustrate embodiments of the present invention, Figure 1 is an isometric view of a firebox for installation in a fireplace having a flue liner adaptor positioned for fitting within a clip on the near corner of the firebox for pivoting to a sealed connection, Figure 2 is a top view of a flue liner adaptor according to one embodiment of the present invention, Figure 3 is a side elevational view of the flue liner adaptor shown in Figure 2, Figures 4, 5 and 6 are side elevational views of a fireplace showing steps of installing a firebox therein.
- 4a -A firebox 10 is shown in Figure 1. The firebox is generally rectangular in shape and may be a gas fired firebox or a solid fuel firebox for either wood, coal or other types solid fuel. The firebox 10 has a top panel 11 which extends from a near corner a portion of the way down the back of the firebox 10. The top panel 11 has a front firebox flange 12 extending upwards. An adaptor clip 13 is shown positioned at the rear corner of the top panel 11 in approximately the centre position and adjacent to it in the top panel 11 is an exhaust opening 14 for flue gases to escape. A flue liner adaptor plate _ 5 _ 15, shown in more detail in Figures 2 and 3, has a rear edge 16 which fits under the adaptor clip 13 attached to the top panel 11. The adaptor plate 15 has side edges that extend up and provide a positioning arrangement for positioning the plate 15 to the adaptor clip 13. The plate 15 has a width just sufficient for the near edge 16 to fit under the clip 13 and the side edges locate the plate 15 in the centre of the top panel 11. A front flange 17 at the front edge of the plate 15 extends upwards approximately the same height as the front firebox flange 12. Upon installation, the flue liner adaptor plate 15 has the rear edge 16 inserted under the clip 13, it is then pivoted downwards until the plate 15 is resting flush on the top panel 11.
An opening 19 is provided in the flue liner adaptor plate 15, the opening 19 is exactly positioned to mate with the exhaust opening 14 in the top panel 11 of the firebox 10. A sleeve 20 extends up from the exhaust opening 19 in the flue liner adaptor plate 15 and is connected to the flue liner adaptor plate 15. The sleeve 20 is shown fitting over a flue liner or duct in a chimney flue. It is customary to have the sleeve 20 fitting over the flue liner for gas fired fireplaces and to have the sleeve 20 fitting into the flue liner for solid fuel fireplaces.
Upon installation, the flue liner adaptor plate 15 has the rear edge 16 pushed under the clip 13 of the firebox, and is then pivoted downwards. A hole 21 in the front firebox flange 12 mates with a hole 22 in the front flange 17 of the flue liner adaptor plate 15. The flue liner adaptor plate 15 is pushed down flush with the top panel 11 so that there is a seal between the exhaust opening 14 in the top panel 11 and the adaptor plate 15 and no exhaust gases can escape. A machine screw is inserted between holes 21 and 22 to ensure that the flue 209I~29 liner adaptor plate 15 is pressed firmly downwards on the top panel 11 and is held to form a sealed connection.
As seen in more detail in Figures 4, 5 and 6, a flue liner 23 within a chimney 24 of a fireplace 25 has a flue liner adaptor plate 15 connected to it by the sleeve 20 fitting over the end of the flue liner 23. In another embodiment the sleeve 20 fits into the end of the flue liner 23. As shown, the flue liner 23 is flexible. In other embodiments the flue liner 23 need not specifically be flexible.
For installation of a firebox 10, the firebox is installed as shown in Figure 5 and pushed into place and only when it is in place the flue liner adaptor plate 15 has its rear edge 16 pushed under the clip 13 attached to the near corner of the firebox 10. The side edges of the flue liner adaptor plate 15 ensure that the adaptor plate is centred on the firebox 10, the adaptor plate 15 is then pivoted downwards as shown in Figure 6. A bolt is fitted between the hole 21 in the front firebox flange 12 and hole 22 of the front flange 17 of the adaptor plate 15 so that the adaptor plate 15 is flush with the tap panel 11 to provide a seal preventing exhaust gases from escaping. The connection of the flue liner adaptor plate 15 to the firebox 10 is achieved only after the firebox is installed in the fireplace 25.
If it is necessary to remove the firebox 10, then the bolt or screw is removed from holes 21 and 22, the adaptor plate 15 lifted at the front and pivoted open where it then may be moved forward to disconnect it from the clip 13. The firebox 10 can then be slid out of the fireplace leaving the adaptor plate 15 connected to the flue liner 23.
Various changes may be made to the embodiments shown herein without departing from the scope of the present invention which is limited only by the following claims.
Claims (6)
1. A flue liner adaptor for connection to an exhaust opening in a top panel of a firebox to join to a flue liner, the firebox adapted to be installed in a fireplace having a chimney flue, the flue liner adaptor comprising:
a plate means having one end engageable in a clip means at a rear corner of the top panel of the firebox, the plate means being pivotable and removable from the clip means, the plate means having an aperture therein to match the exhaust opening in the top panel of the firebox when the plate means is flush with the top panel;
connection means on the firebox to retain the plate means flush with the top panel of the firebox comprising a front flange at a front edge of the plate means extending upwardly to match a firebox flange at the front of the top panel of the firebox with fastening means to join the front flange and the firebox flange; and sleeve means located over the aperture in the plate means and attached thereto, the sleeve means extending upwards and adapted for connection to the flue liner.
a plate means having one end engageable in a clip means at a rear corner of the top panel of the firebox, the plate means being pivotable and removable from the clip means, the plate means having an aperture therein to match the exhaust opening in the top panel of the firebox when the plate means is flush with the top panel;
connection means on the firebox to retain the plate means flush with the top panel of the firebox comprising a front flange at a front edge of the plate means extending upwardly to match a firebox flange at the front of the top panel of the firebox with fastening means to join the front flange and the firebox flange; and sleeve means located over the aperture in the plate means and attached thereto, the sleeve means extending upwards and adapted for connection to the flue liner.
2. The flue liner adaptor according to claim 1 wherein the plate means comprises a rectangular plate having side edges to position the rectangular plate relative to the clip means, a rear edge of the rectangular plate fitting into the clip means.
3. The flue liner adaptor according to claim 1 in which the fastening means comprises a threaded fastener insertable through aligned openings in the front flange and the firebox flange.
4. The flue liner adaptor according to claim 2 wherein the rectangular plate extends across the top panel of the firebox from front to rear and is pivotable upwards from the clip means at the rear corner of the top panel of the firebox.
5. A method of installing a firebox in a fireplace and connecting an exhaust opening in a top panel of the firebox to a flue liner within a chimney flue, comprising the steps of:
fitting a sleeve means of a flue liner adaptor to mate with the flue liner, the flue liner adaptor having a flat plate with an aperture in the flat plate under the sleeve means;
installing a mounting clip on a rear edge of the top panel of the firebox;
inserting the firebox into the fireplace;
fitting a rear edge of the flat plate of the flue liner adaptor into the mounting clip, and pivoting the flat plate downwards to rest flush on the top panel of the firebox with the aperture in the flat plate over the exhaust opening in the top panel of the firebox, and fastening a substantially vertical front flange on the front edge of the flue liner adapter to a firebox flange at the front of the top panel of the firebox to clamp the flue liner adaptor to the top panel of the firebox to ensure a sealed exhaust connection between the exhaust opening in the firebox and the flue liner.
fitting a sleeve means of a flue liner adaptor to mate with the flue liner, the flue liner adaptor having a flat plate with an aperture in the flat plate under the sleeve means;
installing a mounting clip on a rear edge of the top panel of the firebox;
inserting the firebox into the fireplace;
fitting a rear edge of the flat plate of the flue liner adaptor into the mounting clip, and pivoting the flat plate downwards to rest flush on the top panel of the firebox with the aperture in the flat plate over the exhaust opening in the top panel of the firebox, and fastening a substantially vertical front flange on the front edge of the flue liner adapter to a firebox flange at the front of the top panel of the firebox to clamp the flue liner adaptor to the top panel of the firebox to ensure a sealed exhaust connection between the exhaust opening in the firebox and the flue liner.
6. The method of installing a firebox in a fireplace according to claim 5 wherein the fastening step involves threading a threaded fastener through aligned openings in the front flange of the flue liner adaptor and the firebox flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2091429 CA2091429C (en) | 1993-03-10 | 1993-03-10 | Pivoting flue liner adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2091429 CA2091429C (en) | 1993-03-10 | 1993-03-10 | Pivoting flue liner adaptor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2091429A1 CA2091429A1 (en) | 1994-09-11 |
| CA2091429C true CA2091429C (en) | 2004-01-27 |
Family
ID=4151281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2091429 Expired - Fee Related CA2091429C (en) | 1993-03-10 | 1993-03-10 | Pivoting flue liner adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2091429C (en) |
-
1993
- 1993-03-10 CA CA 2091429 patent/CA2091429C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2091429A1 (en) | 1994-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |