CA2167041A1 - Static attic-ventilating device - Google Patents
Static attic-ventilating deviceInfo
- Publication number
- CA2167041A1 CA2167041A1 CA 2167041 CA2167041A CA2167041A1 CA 2167041 A1 CA2167041 A1 CA 2167041A1 CA 2167041 CA2167041 CA 2167041 CA 2167041 A CA2167041 A CA 2167041A CA 2167041 A1 CA2167041 A1 CA 2167041A1
- Authority
- CA
- Canada
- Prior art keywords
- conduit means
- duct section
- static
- recited
- distance
- 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
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
A static ventilator for ventilating the attic of a building comprises a generally vertical duct section with an open lower end and at least one vent opening in the upper portion thereof. A set of generally vertical air conduits are mounted externally of the duct section, wherein the conduits are disposed radially with respect both to each other and to the duct section, each conduit means has a lower mouth and an upper end communicating with the vent opening, the respective heights of the lower mouths reduce from one conduit to the other as the distance from the duct section reduces, and the conduits have, between their lower mouth and upper end, respective lengths which increase from one conduit to the other as the distance from the duct section reduces. Finally, the static ventilator comprises a top wall. Each conduit comprises an inner wall face opposite to the duct section and provided with upper and lower deflectors for preventing liquid and/or solid foreign matter from entering the duct section. The static ventilator may comprise two diametrically opposite sets of generally vertical air conduits. Alternatively, each conduit is annular in horizontal cross section and encircles the duct section.
Description
216~0~1 -STATIC ATTIC-VENTILATING DEVICE
BACKGROUND QF THE INVENTION
1. Field of the invention:
The present invention relates to a static ventilator of simple construction, capable of efficiently ventilating in particular but not exclusively the attic of a house or other building while preventing liquid and solid foreign matter, for example rain and snow, from entering the ventilator.
BACKGROUND QF THE INVENTION
1. Field of the invention:
The present invention relates to a static ventilator of simple construction, capable of efficiently ventilating in particular but not exclusively the attic of a house or other building while preventing liquid and solid foreign matter, for example rain and snow, from entering the ventilator.
2. Brief description of the prior art:
Numerous prior art attic-ventilating devices of various designs have been proposed.
Examples are shown in the following United States patents:
1,657,625 (Hoal) 1928 1,669,722 (Miller) 1928 2,640,413 (Reed) 1953 21670~1 -2,763,196 (Singleton) 1956 2,830,527 (Breidert et al.) 1958 2,922,354 (Breidert et al.) 1960 3,209,669 (Bayne) 1965 3,216,161 (Forsman) 1965 3,338,006 (Belden) 1967 4,572,059 (Ramsey) 1986 The complexity and efficiency of these prior art designs vary from one attic-ven~ilating 15 device to the other.
OBJECT OF THE INVENTION
An object of the present invention is to provide a static ventilator of new, simple design which is very efficient to both ventilate in particular but not exclusively the attic of a house or 25 other building, and prevent liquid and solid foreign matter from entering the ventilator and therefore the attic.
704i SUMMARY OF T~ INVENTION
More particularly, in accordance with the present invention, there is provided a static 0 ventilator comprising:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
a set of generally vertical air conduit means mounted externally of the duct section, wherein (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with the vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces;
and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means.
~:167041 Sets of generally vertical and radially disposed air conduit means having (a) lower mouths with respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (b) respective lengths which increase from one conduit means to the other as the distance from the duct section reduces have proved to be very efficient in ventilating in particular but not exclusively the attic of a house or other building, while preventing liquid and solid foreign matter from entering the ventilator and therefore the attic.
Preferably, the upper ends of the conduit means have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces.
In accordance with a preferred embodiment of the present invention, the static ventilator comprises two diametrically opposite sets of generally vertical air conduit means.
In accordance with another preferred embodiment of the static ventilator of the present invention, each conduit means is annular in horizontal cross section and encircles the duct section.
O ~ i -According to further preferred embodiments of the present invention:
- each conduit means comprises an inner wall face opposite to the duct section and provided with air deflecting means for preventing foreign matter from entering the duct section through the vent opening;
- the air deflecting means comprises a lower deflector sloping downwardly from the inner wall face, and an upper deflector sloping downwardly toward the inner wall face;
- the lower and upper deflectors of each conduit means are separated by a vertical distance that increases from one conduit means to the other as the distance from the duct section reduces;
- the slope of the lower deflector is smaller than the slope of the upper deflector; and - the upper portion of the duct section comprises a mesh to define said at least one vent opening.
The present invention further relates to an arrangement of two static ventilators on a roof having an attic, wherein:
~167041 -(a) each static ventilator comprises:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
two diametrically opposite sets of generally vertical air conduit means mounted externally of the duct section, wherein, in each set of generally vertical air conduit means (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with the vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means;
(b) the open lower ends of the duct sections of the two static ventilators are mounted on the roof for _` ~1670~1 communicating with respective spaced apart holes in this roof whereby the duct section communicates with the attic; and (c) the two ventilators have respective angular positions about respective generally vertical axes which are 90 apart from each other.
The objects, advantages and other features of the present invention will become more apparent upon reading of the following non restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
BRIF.F DESCRIPTIQN OF THE DRAWINGS
In the appended drawings:
Figure 1 is a top plan view of a first embodiment of the static ventilator according to the present invention;
Figure 2 is a side elevational, cross sectional view of the static ventilator of Figure 1, taken along line 2-2 of Figure l;
~1 67041 -Figure 3 is an enlarged cross sectional view of air deflectors of the static ventilator of Figures 1 and 2; and Figure 4 is a top plan view of a second embodiment of the static ventilator according to the present invention.
DETAILED DESCRIPTION OF T~F. PREF~.RRED EMBODIMENTS
Although the preferred embodiments of the present invention will be described hereinafter in relation to ventilation of the attic of a house or other building, it should be kept in mind that this application is given as a non limitative example only and that the present invention encompasses any other possible application of the static ventilator.
Referring to Figures 1 and 2, the static ventilator is generally identified by the reference 10. Unless otherwise stated, the illustrated ventilator 10 is made of sheet metal. Of course, other materials are available to construct the static ventilator 10.
~15~0~1 The static ventilator 10 of Figures 1 and 2 comprises a generally vertical duct section 11. In the illustrated example, the duct section 11 is generally square in horizontal cross section as best shown in Figure 1.
The duct section 11 has a lower end 12 which is open. As well known to those of ordinary skill in the art, the open lower end 12 is normally connected to the periphery of a hole (not shown) in the roof of a house or other building whereby the duct section 11 communicates with the attic of this house or building in order to ventilate the same as will be described hereinafter. As such connection of the open lower end 12 to the periphery of a hole (not shown) in the roof of a house or other building is well known to those of ordinary skill in the art, it will not be further described in the present disclosure.
The duct section 11 also comprises an upper portion 13 in which at least one vent opening is made.
In the illustrated example, the upper portion 13 of the duct section 11 is made of a mesh material to define vent openings all around the duct section 11.
The mesh gauge used may for example be 6.2 mm x 6.2 mm. Other types of vent openings can also be used, for example perforations in the sheet metal of the ~1670~1 -duct section 11. Mesh material has the advantage of preventing bigger insects, birds and other small animals to penetrate the attic through the ventilator 10 .
10The static ventilator 10 further comprises a set 14 of three generally vertical air conduits 15, 16 and 17 mounted externally of one 18 of the rectangular, generally vertical walls of the duct section 11. As can be seen in Figures 1 and 2, the 15conduits 15, 16 and 17 are disposed radially with respect both to each other and to the duct section 11.
In the example of Figures 1 and 2, the conduits 15-17 have a substantially rectangular horizontal cross section.
The conduits 15, 16 and 17 have respective lower mouths 19, 20 and 21 of which the height reduces from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section reduces.
Also, the conduits 15, 16 and 17 comprise respective upper ends 22, 23 and 24 having respective heights which reduce from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
~1~i70~1 Finally, the conduits 15, 16 and 17 have, between their lower mouth 19, 20 or 21 and their upper end 22, 23 or 24, respective lengths which increase from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
A top wall 25 extends above both the upper portion 13 of the duct section 11 and the upper ends 22-24 of the conduits 15-16 to close the top portion 15 of the static ventilator 10.
As can be seen in Figure 2, the upper ends 22-24 of the vertical conduits 15-17 are in communication with the vent openings formed by the mesh material of 20 the top portion 13.
Each conduit 15, 16 or 17 comprises an inner wall face such as 26 opposite to the duct section 11.
The inner wall face 26 of each conduit 15, 16 or 17 is 25 provided with a pair of air deflectors 27 and 28 for preventing foreign matter from entering the duct section 11 through the mesh material of the upper portion 13 (vent openings).
As best shown in Figure 3, the pair of air deflectors comprise a lower deflector 28 sloping ~1670~i downwardly from the inner wall face 26, and an upper deflector 27 sloping downwardly toward that inner wall face 26. As can be seen, the slope of the lower deflector 28 is smaller than the slope of the upper deflector 27.
As illustrated in Figures 2 and 3, the lower 28 and upper 27 deflectors of each conduit 15, 16 or 17 are separated from each other by a vertical distance that increases from one vertical conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
Each pair of deflectors 27 and 28 is advantageously made of sheet metal bent to form the two deflectors and then "spot welded" to the inner wall face 26.
Referring to Figure 2, air from the outside will penetrate the duct section 11 and therefore the attic as shown for example by the arrow 29, or will leave the attic as shown by the arrow 30 to thereby ventilate the attic of the house or other building.
The example illustrated in Figures 1, 2 and 3 of the appended drawings comprises two diametrically opposite, symmetrical sets 14 and 14' of generally _` ~1670~1 vertical air conduits 14-17 and 14'-17', respectively.
The structure of the set 14' is the same as that of the set 14, but is symmetrical thereto. The elements of the set 14' corresponding to the elements of the set 14 are identified by the same reference numeral accompanied by the prime sign "`".
Furthermore, each generally vertical conduit 15, 16 or 17 may be annular in horizontal cross section and encircle the duct section 11 as shown in Figure 4. Although Figure 4 illustrates rectangular cross sections, it is within the scope of the present invention to construct a static ventilator 10 with a duct section 11 and annular conduits 15-17 which are circular in horizontal cross section.
Downward staggering of the generally vertical conduits 15-17 as illustrated in Figure 2 prevents infiltration of foreign matter such as rain or snow in the duct section 11 and therefore in the attic of the house or other building. Also, the deflectors 27 and 28 prevents infiltration of wind-swept foreign matter such as rain or snow in the duct section 11.
Consequently, the structure of the static ventilator 10 ensure resistance and imperviousness thereof to bad weather conditions.
_ ` 2 ~ 6 ~
To obtain a better ventilation of the attic of for example a flat roof 31, two static ventilators 10 and 10' as illustrated in Figures 1, 2 and 3 can be mounted on the periphery of respective spaced apart holes 32 and 32' of that roof 31 in respective angular positions about respective vertical axes 33 and 33' which are 90 apart from each other. Depending on the direction of the wind and for any direction of the wind, air will penetrate the attic through one ventilator and will exit through the other ventilator to efficiently ventilate the flat roof (See arrow 34 and 35). Such an arrangement enables the cooperation of the two static ventilators 10 and 10' with each other to properly ventilate the flat roof 31.
Although the present invention has been described herein above with reference to preferred embodiments thereof, these embodiments can be modified at will, within the scope of the appended claims, without departing from the spirit and nature of the subject invention.
Numerous prior art attic-ventilating devices of various designs have been proposed.
Examples are shown in the following United States patents:
1,657,625 (Hoal) 1928 1,669,722 (Miller) 1928 2,640,413 (Reed) 1953 21670~1 -2,763,196 (Singleton) 1956 2,830,527 (Breidert et al.) 1958 2,922,354 (Breidert et al.) 1960 3,209,669 (Bayne) 1965 3,216,161 (Forsman) 1965 3,338,006 (Belden) 1967 4,572,059 (Ramsey) 1986 The complexity and efficiency of these prior art designs vary from one attic-ven~ilating 15 device to the other.
OBJECT OF THE INVENTION
An object of the present invention is to provide a static ventilator of new, simple design which is very efficient to both ventilate in particular but not exclusively the attic of a house or 25 other building, and prevent liquid and solid foreign matter from entering the ventilator and therefore the attic.
704i SUMMARY OF T~ INVENTION
More particularly, in accordance with the present invention, there is provided a static 0 ventilator comprising:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
a set of generally vertical air conduit means mounted externally of the duct section, wherein (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with the vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces;
and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means.
~:167041 Sets of generally vertical and radially disposed air conduit means having (a) lower mouths with respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (b) respective lengths which increase from one conduit means to the other as the distance from the duct section reduces have proved to be very efficient in ventilating in particular but not exclusively the attic of a house or other building, while preventing liquid and solid foreign matter from entering the ventilator and therefore the attic.
Preferably, the upper ends of the conduit means have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces.
In accordance with a preferred embodiment of the present invention, the static ventilator comprises two diametrically opposite sets of generally vertical air conduit means.
In accordance with another preferred embodiment of the static ventilator of the present invention, each conduit means is annular in horizontal cross section and encircles the duct section.
O ~ i -According to further preferred embodiments of the present invention:
- each conduit means comprises an inner wall face opposite to the duct section and provided with air deflecting means for preventing foreign matter from entering the duct section through the vent opening;
- the air deflecting means comprises a lower deflector sloping downwardly from the inner wall face, and an upper deflector sloping downwardly toward the inner wall face;
- the lower and upper deflectors of each conduit means are separated by a vertical distance that increases from one conduit means to the other as the distance from the duct section reduces;
- the slope of the lower deflector is smaller than the slope of the upper deflector; and - the upper portion of the duct section comprises a mesh to define said at least one vent opening.
The present invention further relates to an arrangement of two static ventilators on a roof having an attic, wherein:
~167041 -(a) each static ventilator comprises:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
two diametrically opposite sets of generally vertical air conduit means mounted externally of the duct section, wherein, in each set of generally vertical air conduit means (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with the vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means;
(b) the open lower ends of the duct sections of the two static ventilators are mounted on the roof for _` ~1670~1 communicating with respective spaced apart holes in this roof whereby the duct section communicates with the attic; and (c) the two ventilators have respective angular positions about respective generally vertical axes which are 90 apart from each other.
The objects, advantages and other features of the present invention will become more apparent upon reading of the following non restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
BRIF.F DESCRIPTIQN OF THE DRAWINGS
In the appended drawings:
Figure 1 is a top plan view of a first embodiment of the static ventilator according to the present invention;
Figure 2 is a side elevational, cross sectional view of the static ventilator of Figure 1, taken along line 2-2 of Figure l;
~1 67041 -Figure 3 is an enlarged cross sectional view of air deflectors of the static ventilator of Figures 1 and 2; and Figure 4 is a top plan view of a second embodiment of the static ventilator according to the present invention.
DETAILED DESCRIPTION OF T~F. PREF~.RRED EMBODIMENTS
Although the preferred embodiments of the present invention will be described hereinafter in relation to ventilation of the attic of a house or other building, it should be kept in mind that this application is given as a non limitative example only and that the present invention encompasses any other possible application of the static ventilator.
Referring to Figures 1 and 2, the static ventilator is generally identified by the reference 10. Unless otherwise stated, the illustrated ventilator 10 is made of sheet metal. Of course, other materials are available to construct the static ventilator 10.
~15~0~1 The static ventilator 10 of Figures 1 and 2 comprises a generally vertical duct section 11. In the illustrated example, the duct section 11 is generally square in horizontal cross section as best shown in Figure 1.
The duct section 11 has a lower end 12 which is open. As well known to those of ordinary skill in the art, the open lower end 12 is normally connected to the periphery of a hole (not shown) in the roof of a house or other building whereby the duct section 11 communicates with the attic of this house or building in order to ventilate the same as will be described hereinafter. As such connection of the open lower end 12 to the periphery of a hole (not shown) in the roof of a house or other building is well known to those of ordinary skill in the art, it will not be further described in the present disclosure.
The duct section 11 also comprises an upper portion 13 in which at least one vent opening is made.
In the illustrated example, the upper portion 13 of the duct section 11 is made of a mesh material to define vent openings all around the duct section 11.
The mesh gauge used may for example be 6.2 mm x 6.2 mm. Other types of vent openings can also be used, for example perforations in the sheet metal of the ~1670~1 -duct section 11. Mesh material has the advantage of preventing bigger insects, birds and other small animals to penetrate the attic through the ventilator 10 .
10The static ventilator 10 further comprises a set 14 of three generally vertical air conduits 15, 16 and 17 mounted externally of one 18 of the rectangular, generally vertical walls of the duct section 11. As can be seen in Figures 1 and 2, the 15conduits 15, 16 and 17 are disposed radially with respect both to each other and to the duct section 11.
In the example of Figures 1 and 2, the conduits 15-17 have a substantially rectangular horizontal cross section.
The conduits 15, 16 and 17 have respective lower mouths 19, 20 and 21 of which the height reduces from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section reduces.
Also, the conduits 15, 16 and 17 comprise respective upper ends 22, 23 and 24 having respective heights which reduce from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
~1~i70~1 Finally, the conduits 15, 16 and 17 have, between their lower mouth 19, 20 or 21 and their upper end 22, 23 or 24, respective lengths which increase from one conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
A top wall 25 extends above both the upper portion 13 of the duct section 11 and the upper ends 22-24 of the conduits 15-16 to close the top portion 15 of the static ventilator 10.
As can be seen in Figure 2, the upper ends 22-24 of the vertical conduits 15-17 are in communication with the vent openings formed by the mesh material of 20 the top portion 13.
Each conduit 15, 16 or 17 comprises an inner wall face such as 26 opposite to the duct section 11.
The inner wall face 26 of each conduit 15, 16 or 17 is 25 provided with a pair of air deflectors 27 and 28 for preventing foreign matter from entering the duct section 11 through the mesh material of the upper portion 13 (vent openings).
As best shown in Figure 3, the pair of air deflectors comprise a lower deflector 28 sloping ~1670~i downwardly from the inner wall face 26, and an upper deflector 27 sloping downwardly toward that inner wall face 26. As can be seen, the slope of the lower deflector 28 is smaller than the slope of the upper deflector 27.
As illustrated in Figures 2 and 3, the lower 28 and upper 27 deflectors of each conduit 15, 16 or 17 are separated from each other by a vertical distance that increases from one vertical conduit to the other as the distance of the conduit 15, 16 or 17 from the duct section 11 reduces.
Each pair of deflectors 27 and 28 is advantageously made of sheet metal bent to form the two deflectors and then "spot welded" to the inner wall face 26.
Referring to Figure 2, air from the outside will penetrate the duct section 11 and therefore the attic as shown for example by the arrow 29, or will leave the attic as shown by the arrow 30 to thereby ventilate the attic of the house or other building.
The example illustrated in Figures 1, 2 and 3 of the appended drawings comprises two diametrically opposite, symmetrical sets 14 and 14' of generally _` ~1670~1 vertical air conduits 14-17 and 14'-17', respectively.
The structure of the set 14' is the same as that of the set 14, but is symmetrical thereto. The elements of the set 14' corresponding to the elements of the set 14 are identified by the same reference numeral accompanied by the prime sign "`".
Furthermore, each generally vertical conduit 15, 16 or 17 may be annular in horizontal cross section and encircle the duct section 11 as shown in Figure 4. Although Figure 4 illustrates rectangular cross sections, it is within the scope of the present invention to construct a static ventilator 10 with a duct section 11 and annular conduits 15-17 which are circular in horizontal cross section.
Downward staggering of the generally vertical conduits 15-17 as illustrated in Figure 2 prevents infiltration of foreign matter such as rain or snow in the duct section 11 and therefore in the attic of the house or other building. Also, the deflectors 27 and 28 prevents infiltration of wind-swept foreign matter such as rain or snow in the duct section 11.
Consequently, the structure of the static ventilator 10 ensure resistance and imperviousness thereof to bad weather conditions.
_ ` 2 ~ 6 ~
To obtain a better ventilation of the attic of for example a flat roof 31, two static ventilators 10 and 10' as illustrated in Figures 1, 2 and 3 can be mounted on the periphery of respective spaced apart holes 32 and 32' of that roof 31 in respective angular positions about respective vertical axes 33 and 33' which are 90 apart from each other. Depending on the direction of the wind and for any direction of the wind, air will penetrate the attic through one ventilator and will exit through the other ventilator to efficiently ventilate the flat roof (See arrow 34 and 35). Such an arrangement enables the cooperation of the two static ventilators 10 and 10' with each other to properly ventilate the flat roof 31.
Although the present invention has been described herein above with reference to preferred embodiments thereof, these embodiments can be modified at will, within the scope of the appended claims, without departing from the spirit and nature of the subject invention.
Claims (19)
1. A static ventilator comprising:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
a set of generally vertical air conduit means mounted externally of the duct section, wherein (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means.
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
a set of generally vertical air conduit means mounted externally of the duct section, wherein (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means.
2. A static ventilator as recited in claim 1, wherein each conduit means has a substantially rectangular horizontal cross section.
3. A static ventilator as recited in claim 1, wherein each conduit means comprises an inner wall face opposite to the duct section and provided with air deflecting means for preventing foreign matter from entering the duct section through said at least one vent opening.
4. A static ventilator as recited in claim 3, wherein said air deflecting means comprises a lower deflector sloping downwardly from said inner wall face, and an upper deflector sloping downwardly toward said inner wall face.
5. A static ventilator as recited in claim 4, wherein the lower and upper deflectors of each conduit means are separated by a vertical distance that increases from one conduit means to the other as the distance from the duct section reduces.
6. A static ventilator as recited in claim 4, wherein the slope of the lower deflector is smaller than the slope of the upper deflector.
7. A static ventilator as recited in claim 1, wherein the upper ends of the conduit means have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces.
8. A static ventilator as recited in claim 1, wherein the upper portion of the duct section comprises a mesh to define said at least one vent opening.
9. A static ventilator as recited in claim 1, comprising two diametrically opposite sets of generally vertical air conduit means, wherein, in each set of generally vertical air conduit means:
(a) the conduit means are disposed radially with respect both to each other and to the duct section;
(b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening;
(c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces;
and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces.
(a) the conduit means are disposed radially with respect both to each other and to the duct section;
(b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening;
(c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces;
and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces.
10. A static ventilator as recited in claim 9, wherein, in each set of generally vertical air conduit means, the upper ends of the conduit means have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces.
11. A static ventilator as recited in claim 9, wherein the upper portion of the duct section comprises a mesh to define said at least one vent opening.
12. A static ventilator as recited in claim 9, wherein each conduit means comprises an inner wall face opposite to the duct section and provided with air deflecting means for preventing foreign matter from entering the duct section through said at least one vent opening.
13. A static ventilator as recited in claim 12, wherein said air deflecting means comprises a lower deflector sloping downwardly from said inner wall face, and an upper deflector sloping downwardly toward said inner wall face.
14. A static ventilator as recited in claim 13, wherein the lower and upper deflectors of each conduit means are separated by a vertical distance which increases from one conduit means to the other as the distance from the duct section reduces.
15. A static ventilator as recited in claim 13, wherein the slope of the lower deflector is smaller than the slope of the upper deflector.
16. A static ventilator as recited in claim 1, wherein each conduit means is annular in horizontal cross section and encircles the duct section.
17. An arrangement of two static ventilators on a roof having an attic, wherein:
(a) each static ventilator comprises:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
two diametrically opposite sets of generally vertical air conduit means mounted externally of the duct section, wherein, in each set of generally vertical air conduit means (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means;
(b) the open lower ends of the duct sections of said two static ventilators are mounted on the roof for communicating with respective spaced apart holes in said roof whereby the duct section communicates with said attic; and (c) said two ventilators have respective angular positions about respective generally vertical axes which are 90° apart from each other.
(a) each static ventilator comprises:
a generally vertical duct section having an upper portion and an open lower end;
at least one vent opening in the upper portion of the duct section;
two diametrically opposite sets of generally vertical air conduit means mounted externally of the duct section, wherein, in each set of generally vertical air conduit means (a) the conduit means are disposed radially with respect both to each other and to the duct section, (b) each conduit means has a lower mouth and an upper end communicating with said at least one vent opening, (c) the lower mouths have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces, and (d) the conduit means have, between their lower mouth and upper end, respective lengths which increase from one conduit means to the other as the distance from the duct section reduces; and a top wall extending above both the upper portion of the duct section and the upper ends of the conduit means;
(b) the open lower ends of the duct sections of said two static ventilators are mounted on the roof for communicating with respective spaced apart holes in said roof whereby the duct section communicates with said attic; and (c) said two ventilators have respective angular positions about respective generally vertical axes which are 90° apart from each other.
18. An arrangement of static ventilators as recited in claim 17, wherein, in each set of generally vertical air conduit means, each conduit means comprises an inner wall face opposite to the duct section and provided with air deflecting means for preventing foreign matter from entering the duct section through said at least one vent opening.
19. An arrangement of static ventilators as recited in claim 17, wherein, in each set of generally vertical air conduit means, the upper ends of the conduit means have respective heights which reduce from one conduit means to the other as the distance from the duct section reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2167041 CA2167041A1 (en) | 1996-01-11 | 1996-01-11 | Static attic-ventilating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2167041 CA2167041A1 (en) | 1996-01-11 | 1996-01-11 | Static attic-ventilating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2167041A1 true CA2167041A1 (en) | 1997-07-12 |
Family
ID=4157328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2167041 Abandoned CA2167041A1 (en) | 1996-01-11 | 1996-01-11 | Static attic-ventilating device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2167041A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008058359A1 (en) * | 2006-11-17 | 2008-05-22 | Jean-Rock Ramsay | Static roof ventilator |
| WO2012010822A1 (en) * | 2010-07-19 | 2012-01-26 | Vkr Holding A/S | Ventilation arrangements |
| US8381459B2 (en) | 2008-12-19 | 2013-02-26 | Serge Ramsay | Adjustable roof ventilator base |
-
1996
- 1996-01-11 CA CA 2167041 patent/CA2167041A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008058359A1 (en) * | 2006-11-17 | 2008-05-22 | Jean-Rock Ramsay | Static roof ventilator |
| US9222691B2 (en) | 2006-11-17 | 2015-12-29 | Serge Ramsay | Static roof ventilator |
| US8381459B2 (en) | 2008-12-19 | 2013-02-26 | Serge Ramsay | Adjustable roof ventilator base |
| WO2012010822A1 (en) * | 2010-07-19 | 2012-01-26 | Vkr Holding A/S | Ventilation arrangements |
| CN103097822A (en) * | 2010-07-19 | 2013-05-08 | Vkr控股公司 | ventilation device |
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| FZDE | Dead |