CA1155329A - Chimney closure apparatus - Google Patents
Chimney closure apparatusInfo
- Publication number
- CA1155329A CA1155329A CA000375413A CA375413A CA1155329A CA 1155329 A CA1155329 A CA 1155329A CA 000375413 A CA000375413 A CA 000375413A CA 375413 A CA375413 A CA 375413A CA 1155329 A CA1155329 A CA 1155329A
- Authority
- CA
- Canada
- Prior art keywords
- frame
- damper plate
- flue
- vertical members
- chimney
- 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
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Abstract
"CHIMNEY CLOSURE APPARATUS"
ABSTRACT OF THE DISCLOSURE
A supporting frame is engaged within the upper end of is the chimney and/sealed around the base thereof adjacent the flue liner and supported by overlapping pegs extending from the frame and engaging the upper edges of the flue liner or chimney. In one embodiment a damper plate is hinged to one side of the lower end of the frame and hangs vertically against the side of the flue liner when open but is pulled upwardly into engagement with the under side of the frame when closed. In another embodiment, the damper plate is hinged centrally of the frame base and hangs vertically, when open, with the upper half extending above the frame base and the other, weighted half, extending below the frame base. Vertically staggered halves of damper plate engag-ing strips are provided one on each half of the frame with the upper half of the damper plate, when closed, engaging the upper surface of one of the strips and the lower half of the damper plate engaging the under side of the other of the strips. In both embodiments, the damper plate is actuated by cable but will move to the open position if the cable breaks or becomes dis-connected from the damper plate.
ABSTRACT OF THE DISCLOSURE
A supporting frame is engaged within the upper end of is the chimney and/sealed around the base thereof adjacent the flue liner and supported by overlapping pegs extending from the frame and engaging the upper edges of the flue liner or chimney. In one embodiment a damper plate is hinged to one side of the lower end of the frame and hangs vertically against the side of the flue liner when open but is pulled upwardly into engagement with the under side of the frame when closed. In another embodiment, the damper plate is hinged centrally of the frame base and hangs vertically, when open, with the upper half extending above the frame base and the other, weighted half, extending below the frame base. Vertically staggered halves of damper plate engag-ing strips are provided one on each half of the frame with the upper half of the damper plate, when closed, engaging the upper surface of one of the strips and the lower half of the damper plate engaging the under side of the other of the strips. In both embodiments, the damper plate is actuated by cable but will move to the open position if the cable breaks or becomes dis-connected from the damper plate.
Description
11553~9 'ICHIMNEy CLOSURE APPARATUS "
B~CKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in selectively closeable chimney apparatus for use on *ireplace chimneys for the elimination of heat loss, down drafts, cooling ef~ects and to improve draft conditions and also to ass~st in the prevention of rain and snow penetration down the chimney shaft.
Althoug~ it is designed primarily for use with fire-places, nevertheless it will be appreciated that it can be used for chimneys in other heating devices.
Fireplaces are usually eguipped with a damper locat-ed just above the firebox and this damper is often damaged at the time of installation or is affected by heat and differen-tial movements in such a way as to allow relatively large amounts of air movement when the fireplace is not in use and the damper is closed.
There are three possible conditions for air movement through a chimney:
1) A flow of air from inside the building to the out-side resulting in energy loss.
B~CKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in selectively closeable chimney apparatus for use on *ireplace chimneys for the elimination of heat loss, down drafts, cooling ef~ects and to improve draft conditions and also to ass~st in the prevention of rain and snow penetration down the chimney shaft.
Althoug~ it is designed primarily for use with fire-places, nevertheless it will be appreciated that it can be used for chimneys in other heating devices.
Fireplaces are usually eguipped with a damper locat-ed just above the firebox and this damper is often damaged at the time of installation or is affected by heat and differen-tial movements in such a way as to allow relatively large amounts of air movement when the fireplace is not in use and the damper is closed.
There are three possible conditions for air movement through a chimney:
1) A flow of air from inside the building to the out-side resulting in energy loss.
2) A flow of alr down the chimney and into the en-closed area, in which case the surrounding area is cooled and uncomfortable, and
3) No movement at all (neutral equilibrium). For this and fo~ condition #2, the total chimney and '~
surrounding material ~brick, blocks, liner, etc.)are cooled substantially. Thus by contactivity they create a draft o~ cool air inside the room.
(Warm air comes in contact with the cool surface of the face of the chimney or fireplace, and ad~a-cent area, cools off and then circulates by con-vection currents.
~ 11 of these conditions are variable for the same unit depending upon weather conditions such as témperature, wind, pressure ana the like, and the pressurization existing within the building (furnace off or on, air supply for com-bustion, clothes driers and the like).
Therefore most fireplaces have a stack of cold air which comes down to the damper (for the case of neutral equi-librium) and when an attempt is made to light a fire in the fireplace, this column of cold air will prevent proper estab-lishment of the necessary upward airflow The result is that -smoke often enters the room and in many cases it is necessary to preheat the chimney by burning newspaper or the like and holding same at the base of the chimney until the up-draft is established.
Water and snow penetration into the chimney can cause damage to the joints of the flue liner by freezing and thawing and can thus result in deterioration of the unit.
SUMMARY OF TE~E INVENTION
e present invention overcomes these disadvantages 1 ~553~
by elimi~nating or at least reducing the above mentioned pro-blems. The ~nvention descri~ed is easily installed in new and ex~sting fireplaces, does not freeze shut, does not inter-~ere w;th the flow, does not cause turbulence, and provides shelter from xain and snow and is also fail-safe inasmuch as it will drop to the open position if the cables should fail.
The dev~ce is particularly useful in conserving energ~ and provid~ng for better fireplace operation ana, of course, providing for the extension of the life of the flue liner and associatea structures.
In accordance with the invention there is provided a selectively operated closure assembly for chimney flues which include a flue liner; comprising in combination a frame engageable within th.e upper discharge end of the ch.imney flueand, when installed, extending from the upper discharge end downwardly to a location spaced below the upper discharge end, means detachably supporting said frame within the upper dis-- charge end of the chimney flue, a damper plate hinged to said . frame adjacent the lower end thereof and movable from a clos-ed position to an open position and vice versa, means adjacent the lower end of the frame engageable by said damper plate when in the closed position, means to control the position of said damper plate relative to said frame and means where-by said damper plate moves to the open position if said means to control the position of said damper plate become inopera tively disconnected from said damper plate, thereby resulting in a fail-safe open relationship of said damper plate relative t:o said chimney flue.
Another advantage of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed.
It will be noted that if the cable breaks or be-comes disconnected from the flap or p~ate, the flap will drop open thus providing a fail-safe construction.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the inven-tion is herein described by reference to the accompanying drawings forming a part hereof, which includes a description of the preferred typical embodiment of the principles of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is an isometric view of the device per se with the flap shown in a partially open or closed position.
Figure 2 is a vertical section showing the device installed within the upper end of a chimney construction with the flap in the closed position.
In the drawings like characters of reference indi-cate corresp~nding parts in the different figures.
DETAILED DESCRIPTION
Before proceeding with the description of this in-vention, it will be appreciated that although the chimney and the device are shown as having a rectangular cross sectional configuration in Figures 1 and 2, nevertheless it will be appreciated that a cylindrical or round configuration can be used.
Proceeding therefore to describe the invention in detail, reference should first be made to Figure 2 in which reference character 10 illustrates the upper end of a chimney with.a cap 11 and flue liner 12 all of which are conventional.
As shown in Figures 1 and 2, the invention, collec-tively designated 13, includes a rectangular base frame 14 of a size just sufficient to slidably engage within the upper end of the flue liner 12. This frame is preferably formed from angle iron and is provided with a hinge 15 on one side thereof to which a rectangular flap or damper plate 16 is hinged for movement from a vertical, open position shown in phantom in the drawings, to a horizontal or closed position shown in full li,ne în Flgure 2, under which circumstances, the plate en-gages the horizontal flanges 17 of the rectangular frame. If de~ired, a seal of material such as asbestos rope (not illus-trated2 ~ay be secured around the undersiae of frame 14 against which the plate engages when closed.
Four rods 18 extend upwardly from the corners of the frame to which they are welded or otherwise secured and a small cross bar 19 is welded to each of the rods spaced up-wardly from the frame and situated diagonally with reference 'to the right angled corners of the frame so that when the frame is slidably engaged within the flue liner, these cross bars engage the upper sides or ends of the flue liner and support the frame as clearly shown in Figure 2.
A rain or snow shedding cap 20 is secured to the upper end of the rods 18 by means of screws 21 ana extends beyond the dimensions of the flue liner as shown in the draw-ings, said cap having sides which slope upwardly and inward-ly towards a common apex 22 as clearly illustrated.
A cable 23 is provided with one end extending dow~-wardly through the flue liner,to a convenient location adja-cent the fireplace (not illustrated), said cable being attach-ed to adjacent the edge 24 of the damper plate 16 opposite to the hinge 15. The cable then extends diagonally upwardly and over a cross bar ~5 which acts as a sheave and which ex-tends between two rods 18 secured to the corners of the frame to which the flap'is hinged. The other end of the cable then ex-tends downwardly thro~lgh the flue liner to a position con- , ven~ent to the fireplace. An aperture may be provided in the damper plate adjacent the hinge if desired.
When the cable end specificall~ designated 23A is pulled, the flap is pulled open to the vertical position against one side of the flue liner as shown in phantom ~n ~gure 1.
When the other end 23B of the cable is pulled, the flap is raised to the horizontal or closed position under which circumstances said other end 23B is detachably anchored to a convenient location adjacent the fireplace.
,Alternatively, a weight (not illustrated~ may be attached to the end 23B within the flue to close the damper plate and hold same closed under which circumstances, the end 23A must be detachably anchored when the damper plate is in the open position.
The soot and other particulate materials contained within the smoke of a fireplace coats the undersiae or hori-zontal flanges 17 of the frame and the surfaces of the flap so that when in the closed position, they assist in the seal-ing relationship between the flap and the frame.
Any freezing which might occur during relatively cold weather is easily broken by pulling on the cable 23A in order to break the seal should this become necessary.
Although the frame is shown made of angle iron, nevertheless it is desirable that the vertical flange 17A
thereof be formed so that it inclines inwardly slightly thus enabling packing such as asbestos, rope or string 14A to be engaged between the back of the vertical flange and the flue liner to give a relatively good seal at this point.
Since various modifications can be made in my in-vention as hereinabove described, and many apparently widely different embodiments of the same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense.
surrounding material ~brick, blocks, liner, etc.)are cooled substantially. Thus by contactivity they create a draft o~ cool air inside the room.
(Warm air comes in contact with the cool surface of the face of the chimney or fireplace, and ad~a-cent area, cools off and then circulates by con-vection currents.
~ 11 of these conditions are variable for the same unit depending upon weather conditions such as témperature, wind, pressure ana the like, and the pressurization existing within the building (furnace off or on, air supply for com-bustion, clothes driers and the like).
Therefore most fireplaces have a stack of cold air which comes down to the damper (for the case of neutral equi-librium) and when an attempt is made to light a fire in the fireplace, this column of cold air will prevent proper estab-lishment of the necessary upward airflow The result is that -smoke often enters the room and in many cases it is necessary to preheat the chimney by burning newspaper or the like and holding same at the base of the chimney until the up-draft is established.
Water and snow penetration into the chimney can cause damage to the joints of the flue liner by freezing and thawing and can thus result in deterioration of the unit.
SUMMARY OF TE~E INVENTION
e present invention overcomes these disadvantages 1 ~553~
by elimi~nating or at least reducing the above mentioned pro-blems. The ~nvention descri~ed is easily installed in new and ex~sting fireplaces, does not freeze shut, does not inter-~ere w;th the flow, does not cause turbulence, and provides shelter from xain and snow and is also fail-safe inasmuch as it will drop to the open position if the cables should fail.
The dev~ce is particularly useful in conserving energ~ and provid~ng for better fireplace operation ana, of course, providing for the extension of the life of the flue liner and associatea structures.
In accordance with the invention there is provided a selectively operated closure assembly for chimney flues which include a flue liner; comprising in combination a frame engageable within th.e upper discharge end of the ch.imney flueand, when installed, extending from the upper discharge end downwardly to a location spaced below the upper discharge end, means detachably supporting said frame within the upper dis-- charge end of the chimney flue, a damper plate hinged to said . frame adjacent the lower end thereof and movable from a clos-ed position to an open position and vice versa, means adjacent the lower end of the frame engageable by said damper plate when in the closed position, means to control the position of said damper plate relative to said frame and means where-by said damper plate moves to the open position if said means to control the position of said damper plate become inopera tively disconnected from said damper plate, thereby resulting in a fail-safe open relationship of said damper plate relative t:o said chimney flue.
Another advantage of the invention is to provide a device of the character herewithin described which is simple in construction, economical in manufacture and otherwise well suited to the purpose for which it is designed.
It will be noted that if the cable breaks or be-comes disconnected from the flap or p~ate, the flap will drop open thus providing a fail-safe construction.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the inven-tion is herein described by reference to the accompanying drawings forming a part hereof, which includes a description of the preferred typical embodiment of the principles of the present invention, in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is an isometric view of the device per se with the flap shown in a partially open or closed position.
Figure 2 is a vertical section showing the device installed within the upper end of a chimney construction with the flap in the closed position.
In the drawings like characters of reference indi-cate corresp~nding parts in the different figures.
DETAILED DESCRIPTION
Before proceeding with the description of this in-vention, it will be appreciated that although the chimney and the device are shown as having a rectangular cross sectional configuration in Figures 1 and 2, nevertheless it will be appreciated that a cylindrical or round configuration can be used.
Proceeding therefore to describe the invention in detail, reference should first be made to Figure 2 in which reference character 10 illustrates the upper end of a chimney with.a cap 11 and flue liner 12 all of which are conventional.
As shown in Figures 1 and 2, the invention, collec-tively designated 13, includes a rectangular base frame 14 of a size just sufficient to slidably engage within the upper end of the flue liner 12. This frame is preferably formed from angle iron and is provided with a hinge 15 on one side thereof to which a rectangular flap or damper plate 16 is hinged for movement from a vertical, open position shown in phantom in the drawings, to a horizontal or closed position shown in full li,ne în Flgure 2, under which circumstances, the plate en-gages the horizontal flanges 17 of the rectangular frame. If de~ired, a seal of material such as asbestos rope (not illus-trated2 ~ay be secured around the undersiae of frame 14 against which the plate engages when closed.
Four rods 18 extend upwardly from the corners of the frame to which they are welded or otherwise secured and a small cross bar 19 is welded to each of the rods spaced up-wardly from the frame and situated diagonally with reference 'to the right angled corners of the frame so that when the frame is slidably engaged within the flue liner, these cross bars engage the upper sides or ends of the flue liner and support the frame as clearly shown in Figure 2.
A rain or snow shedding cap 20 is secured to the upper end of the rods 18 by means of screws 21 ana extends beyond the dimensions of the flue liner as shown in the draw-ings, said cap having sides which slope upwardly and inward-ly towards a common apex 22 as clearly illustrated.
A cable 23 is provided with one end extending dow~-wardly through the flue liner,to a convenient location adja-cent the fireplace (not illustrated), said cable being attach-ed to adjacent the edge 24 of the damper plate 16 opposite to the hinge 15. The cable then extends diagonally upwardly and over a cross bar ~5 which acts as a sheave and which ex-tends between two rods 18 secured to the corners of the frame to which the flap'is hinged. The other end of the cable then ex-tends downwardly thro~lgh the flue liner to a position con- , ven~ent to the fireplace. An aperture may be provided in the damper plate adjacent the hinge if desired.
When the cable end specificall~ designated 23A is pulled, the flap is pulled open to the vertical position against one side of the flue liner as shown in phantom ~n ~gure 1.
When the other end 23B of the cable is pulled, the flap is raised to the horizontal or closed position under which circumstances said other end 23B is detachably anchored to a convenient location adjacent the fireplace.
,Alternatively, a weight (not illustrated~ may be attached to the end 23B within the flue to close the damper plate and hold same closed under which circumstances, the end 23A must be detachably anchored when the damper plate is in the open position.
The soot and other particulate materials contained within the smoke of a fireplace coats the undersiae or hori-zontal flanges 17 of the frame and the surfaces of the flap so that when in the closed position, they assist in the seal-ing relationship between the flap and the frame.
Any freezing which might occur during relatively cold weather is easily broken by pulling on the cable 23A in order to break the seal should this become necessary.
Although the frame is shown made of angle iron, nevertheless it is desirable that the vertical flange 17A
thereof be formed so that it inclines inwardly slightly thus enabling packing such as asbestos, rope or string 14A to be engaged between the back of the vertical flange and the flue liner to give a relatively good seal at this point.
Since various modifications can be made in my in-vention as hereinabove described, and many apparently widely different embodiments of the same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illus-trative only and not in a limiting sense.
Claims
CLAIMS:
(1) A selectively operated closure assembly for chimney flues which includes a flue liner;comprising in com-bination a frame engageable within the upper discharge end of the chimney flue and, when installed, extending from the upper discharge end downwardly to a location spaced below the upper discharge end, means detachably supporting said frame within the upper discharge end of the chimney flue, a dam-per plate hinged to said frame adjacent the lower end thereof and movable from a closed position to an open position and vice versa, means adjacent the lower end of the frame engage-able by said damper plate when in the closed position, means to control the position of said damper plate relative to said frame and means whereby said damper plate moves to the open position if said means to control the position of said damper plate becomes inoperatively disconnected from said damper plate, thereby resulting in a fail-safe open relationship of said damper plate relative to said chimney flue.
(2) The invention according to Claim 1 in which said damper plate is hinged to said frame by one side of said damper plate, said damper plate engaging the under-side of said frame in substantially chimney-flue-sealing relationship when in the closed position and hanging verti-cal relative to said frame when in the open position.
(3) The invention according to Claim 1 in which said frame includes a base portion having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner, said damper plate also having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner.
(4) The invention according to Claim 2 in which said frame includes a base portion having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner, said damper plate also having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner.
(5) The invention according to Claim 1 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue liner with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(6) The invention according to Claim 2 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue liner with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(7) The invention according to Claim 3 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue line with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(8) The invention according to Claim 4 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue line with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(9) The invention according to Claims 1, 2 or 3 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engag-ing said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
(10) The invention according to Claims 4, 5 or 6 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engag-ing said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
(11) The invention according to Claims 7 or 8 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engaging said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
(1) A selectively operated closure assembly for chimney flues which includes a flue liner;comprising in com-bination a frame engageable within the upper discharge end of the chimney flue and, when installed, extending from the upper discharge end downwardly to a location spaced below the upper discharge end, means detachably supporting said frame within the upper discharge end of the chimney flue, a dam-per plate hinged to said frame adjacent the lower end thereof and movable from a closed position to an open position and vice versa, means adjacent the lower end of the frame engage-able by said damper plate when in the closed position, means to control the position of said damper plate relative to said frame and means whereby said damper plate moves to the open position if said means to control the position of said damper plate becomes inoperatively disconnected from said damper plate, thereby resulting in a fail-safe open relationship of said damper plate relative to said chimney flue.
(2) The invention according to Claim 1 in which said damper plate is hinged to said frame by one side of said damper plate, said damper plate engaging the under-side of said frame in substantially chimney-flue-sealing relationship when in the closed position and hanging verti-cal relative to said frame when in the open position.
(3) The invention according to Claim 1 in which said frame includes a base portion having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner, said damper plate also having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner.
(4) The invention according to Claim 2 in which said frame includes a base portion having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner, said damper plate also having a cross sectional con-figuration similar to the cross sectional configuration of the flue liner.
(5) The invention according to Claim 1 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue liner with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(6) The invention according to Claim 2 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue liner with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(7) The invention according to Claim 3 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue line with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(8) The invention according to Claim 4 in which said frame includes a substantially horizontal base component and a plurality of vertical members extending upwardly from said base component and extending above the upper distal end of the chimney flue, when installed therein, a rain and snow shedding cap on the upper ends of the vertical members, said means to detachably support said frame within the upper dis-charge end of the chimney flue including extending portions se-cured to said vertical members intermediate the ends thereof and engaging upon the upper end of the flue line with part of said vertical members extending above said upper discharge end of said chimney flue and part of said vertical members extend-ing below said upper discharge end of said chimney flue where-by said horizontal base component is situated spaced below said open discharge end of said chimney flue, said damper plate engaging the underside of said base component of said frame when in the closed position.
(9) The invention according to Claims 1, 2 or 3 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engag-ing said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
(10) The invention according to Claims 4, 5 or 6 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engag-ing said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
(11) The invention according to Claims 7 or 8 in which said means to control the position of said damper plate relative to said frame includes a flexible cable secured to said damper plate remote from said hinging thereof to said frame, with one end extending downwardly through said flue liner, guide means on said frame spaced above said damper plate, the other end of said flexible cable operatively engaging said guide means and then extending downwardly through said flue liner, the actuation of said other end moving said damper plate from the open position to the closed position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8012440 | 1980-04-15 | ||
| GB8012440 | 1980-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1155329A true CA1155329A (en) | 1983-10-18 |
Family
ID=10512810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000375413A Expired CA1155329A (en) | 1980-04-15 | 1981-04-14 | Chimney closure apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1155329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11674316B2 (en) | 2021-01-29 | 2023-06-13 | Hohmann & Barnard, Inc. | Facade support system |
| USD999617S1 (en) | 2020-06-01 | 2023-09-26 | Hohmann & Barnard, Inc. | Facade support |
-
1981
- 1981-04-14 CA CA000375413A patent/CA1155329A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD999617S1 (en) | 2020-06-01 | 2023-09-26 | Hohmann & Barnard, Inc. | Facade support |
| US11674316B2 (en) | 2021-01-29 | 2023-06-13 | Hohmann & Barnard, Inc. | Facade support system |
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| MKEX | Expiry |