US20060111034A1 - Omnidirectional vent cap - Google Patents
Omnidirectional vent cap Download PDFInfo
- Publication number
- US20060111034A1 US20060111034A1 US10/994,468 US99446804A US2006111034A1 US 20060111034 A1 US20060111034 A1 US 20060111034A1 US 99446804 A US99446804 A US 99446804A US 2006111034 A1 US2006111034 A1 US 2006111034A1
- Authority
- US
- United States
- Prior art keywords
- vent cap
- ramp surface
- base
- central opening
- top cover
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
-
- 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
Definitions
- the application relates to the field of ventilating caps for ventilating exhaust vents, such as roof top vents for recreational vehicle holding tanks and the like.
- Ventilator caps are widely used to facilitate venting from gas exhaust outlets on building roofs and transportation vehicles.
- recreational vehicles utilize a holding tank for storage and processing of sewage (black water) and/or grey water.
- Such holding tanks are generally vented to the exterior atmosphere by a vent pipe which typically exits the vehicle through the roof of the vehicle.
- a cap is provided on the vent pipe to prevent objects from entering the pipe.
- the unpleasant odors can accumulate in the holding tank and seep back into the living area of the vehicle.
- vent caps To improve and facilitate the exhaust of gases from the holding tank, a rotating vent cap resembling a wind vanes has been used to take advantage of wind movement.
- Such vent caps are pivotally connected to the outlet of the vent pipe and have a vane which causes the outlet opening to point downwind, thereby drawing vapors from the holding tank.
- a drawback of such vent caps however is that they require a certain minimum wind velocity to function effectively, in particular at least enough wind velocity to pivot the wind vane. In the absence of that minimum wind force, the device may not function.
- vent cap which functions to improve the exhaust of gasses from holding tanks or the like omni-directionally with no moving parts and with a minimum of air movement.
- the invention provides a roof vent cap for venting an exhaust gas passage, comprising: i) a generally circular base having a central opening for communicating with the exhaust gas passage and a generally circular perimeter, and an upper ramp surface extending between the perimeter and the central opening, the ramp surface having an increasing slope as the distance from the central opening decreases; ii) a top cover element supported above the base and having an outer edge and providing a convex lower surface extending at its lowest point below the outer edge to thereby in combination with the base cause a effect above the exhaust gas passage when air moves through the cap; and iii) means for supporting the top cover element above said base.
- the invention further comprises a plurality of spaced, radially extending vanes projecting upwardly from the upper ramp surface.
- the present invention can use a small movement of air to significantly reduce the air pressure above exhaust port to draw vapors from the exhaust pipe. Since the device is symmetrical about the central axis the movement of air can be from any direction relative to the device.
- FIG. 1 is a perspective view of the vent cap of the invention:
- FIG. 2 is a front elevation view of the vent cap shown in FIG. 1 having a variation in the shape of the support legs;
- FIG. 3 is a detail view in front elevation of the base of the vent cap shown in FIG. 2 ;
- FIG. 4 is a top view of the base shown in FIG. 3 ;
- FIG. 5 is a cross-section of the cap taken along lines 5 - 5 of FIG. 6 ;
- FIG. 6 is a top view of the vent cap shown in FIG. 1 ;
- FIG. 7 is a cross-section view showing a recreational vehicle holding tank
- FIG. 8 is a perspective view showing the installation of the vent cap shown in FIG. 2 ;
- FIG. 9 is a front elevation view of the vent cap shown in FIG. 1 having a further variation in the shape of the support legs.
- FIG. 7 illustrates a holding tank 10 , containing sewage 14 , and having an air inlet 16 and a vent pipe 18 extending through roof 20 .
- the vent cap 22 of the invention is shown in FIG. 1 . It has a base 24 , top 26 and support legs 28 joining the base 24 and top 26 . It is preferably formed of molded plastic but could be constructed of other synthetic or natural materials including wood and metal or combinations of such materials.
- Top 26 serves as a cap to prevent materials from entering vent pipe 18 . It has a convex or domed upper surface 30 which provides an aerodynamic shape and permits water and debris to run off. Top 26 has a convex lower surface 32 which forms the upper surface of the channel formed between base 24 and top 26 . The central area or apex 33 of convex lower surface 32 (see FIG. 5 ) extends below the outer edge 31 of upper surface 30 by a distance A. Legs 28 , whose number and thickness are preferably minimized to reduce air turbulence and whose shape is similarly chosen to reduce air turbulence, support top 26 at the appropriate height above base 24 . It has been found that a useful minimum separation of base 24 from top 26 is about 1 ⁇ 2 the length of the ramp surface 40 as described below.
- Base 24 is circular in top view and has a central cylindrical opening 34 for receiving the vent pipe 18 , as shown in dotted outline in FIG. 3 .
- the bottom surface 36 of base 24 is flat.
- the circular outer circumference of base 24 forms a generally vertical rim or edge 38 .
- a radially extending ramp 40 is formed on the upper surface of base 24 between the outer edge 38 and central opening 34 .
- the surface of ramp 40 is curved, with a smoothly increasing tangential angle, being almost flat at edge 38 to about 80 degrees at opening 34 .
- the vertical height of the ramp rises about one-half its surface distance over the curvature of the ramp from outer to inner edge.
- the radial length of the ramp is preferably roughly the same as the radius of opening 34 .
- the shape of ramp 40 causes the moving air to be accelerated upwardly away from the exhaust port 34 .
- the shape of ramp 34 in combination with the shape of surface 32 , causes a low pressure effect above exhaust port 34 causing the vapors to be drawn upwardly from holding tank 10 .
- radial channeling vanes 48 which extend vertically from ramp 40 may be provided. Vanes 48 serve to focus and direct the air flow toward the center of the device, and reducing the amount of air that slips around the side of the raised inner area of the device. Due to the radial direction of the vanes, the space between vanes decreases towards the center of the device, thereby funneling, concentrating and magnifying the air flow as it reaches the center of the device, and further increasing the air speed and lowering the air pressure above exhaust port 34 .
- the height of the vanes 48 above ramp 40 is preferably 5% to 10% of the length of the surface of ramp 40 .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Closures For Containers (AREA)
Abstract
An omnidirectional vent cap for venting holding tanks is provided. Current vent caps seldom exhaust gasses and create higher rather than lower pressure above the vent. By providing a 360 degree channel, the present invention can use a small movement of air to significantly reduce the air pressure above the exhaust port to draw out vapors. Since the device is symmetrical about the central axis the movement of air can be from any direction relative to the device.
Description
- The application relates to the field of ventilating caps for ventilating exhaust vents, such as roof top vents for recreational vehicle holding tanks and the like.
- Ventilator caps are widely used to facilitate venting from gas exhaust outlets on building roofs and transportation vehicles. For example, recreational vehicles utilize a holding tank for storage and processing of sewage (black water) and/or grey water. Such holding tanks are generally vented to the exterior atmosphere by a vent pipe which typically exits the vehicle through the roof of the vehicle. A cap is provided on the vent pipe to prevent objects from entering the pipe. However, the unpleasant odors can accumulate in the holding tank and seep back into the living area of the vehicle.
- To improve and facilitate the exhaust of gases from the holding tank, a rotating vent cap resembling a wind vanes has been used to take advantage of wind movement. Such vent caps are pivotally connected to the outlet of the vent pipe and have a vane which causes the outlet opening to point downwind, thereby drawing vapors from the holding tank. A drawback of such vent caps however is that they require a certain minimum wind velocity to function effectively, in particular at least enough wind velocity to pivot the wind vane. In the absence of that minimum wind force, the device may not function.
- Other venting apparatus are shown in U.S. Pat. No. 55,094 Hardy; U.S. Pat. No. 3,302,552 Walsh; U.S. Pat. No. 3,347,147 and U.S. Pat. No. 3,382,792 Howard; U.S. Pat. No. 3,509,811 Topp; U.S. Pat. No. 4,531,455 Palmer; and U.S. Pat. No. 4,603,619 Amphoux.
- It is therefore desired to provide a vent cap which functions to improve the exhaust of gasses from holding tanks or the like omni-directionally with no moving parts and with a minimum of air movement.
- An omnidirectional vent cap for venting holding tanks is provided. The invention provides a roof vent cap for venting an exhaust gas passage, comprising: i) a generally circular base having a central opening for communicating with the exhaust gas passage and a generally circular perimeter, and an upper ramp surface extending between the perimeter and the central opening, the ramp surface having an increasing slope as the distance from the central opening decreases; ii) a top cover element supported above the base and having an outer edge and providing a convex lower surface extending at its lowest point below the outer edge to thereby in combination with the base cause a effect above the exhaust gas passage when air moves through the cap; and iii) means for supporting the top cover element above said base. According to one aspect the invention further comprises a plurality of spaced, radially extending vanes projecting upwardly from the upper ramp surface. By providing a 360 degree channel, the present invention can use a small movement of air to significantly reduce the air pressure above exhaust port to draw vapors from the exhaust pipe. Since the device is symmetrical about the central axis the movement of air can be from any direction relative to the device.
- In drawings which illustrate a preferred embodiment of the invention:
-
FIG. 1 is a perspective view of the vent cap of the invention: -
FIG. 2 is a front elevation view of the vent cap shown inFIG. 1 having a variation in the shape of the support legs; -
FIG. 3 is a detail view in front elevation of the base of the vent cap shown inFIG. 2 ; -
FIG. 4 is a top view of the base shown inFIG. 3 ; -
FIG. 5 is a cross-section of the cap taken along lines 5-5 ofFIG. 6 ; -
FIG. 6 is a top view of the vent cap shown inFIG. 1 ; -
FIG. 7 is a cross-section view showing a recreational vehicle holding tank; -
FIG. 8 is a perspective view showing the installation of the vent cap shown inFIG. 2 ; and -
FIG. 9 is a front elevation view of the vent cap shown inFIG. 1 having a further variation in the shape of the support legs. - Throughout the following description, specific details are set forth in order to provide a more thorough understanding of the invention. However, the invention may be practiced without these particulars. In other instances, well known elements have not been shown or described in detail to avoid unnecessarily obscuring the invention. Accordingly, the specification and drawings are to be regarded in an illustrative, rather than a restrictive, sense.
-
FIG. 7 illustrates aholding tank 10, containingsewage 14, and having anair inlet 16 and avent pipe 18 extending throughroof 20. Thevent cap 22 of the invention is shown inFIG. 1 . It has abase 24,top 26 andsupport legs 28 joining thebase 24 andtop 26. It is preferably formed of molded plastic but could be constructed of other synthetic or natural materials including wood and metal or combinations of such materials. - Top 26, as shown in
FIG. 6 , serves as a cap to prevent materials from enteringvent pipe 18. It has a convex or domedupper surface 30 which provides an aerodynamic shape and permits water and debris to run off. Top 26 has a convexlower surface 32 which forms the upper surface of the channel formed betweenbase 24 andtop 26. The central area orapex 33 of convex lower surface 32 (seeFIG. 5 ) extends below theouter edge 31 ofupper surface 30 by adistance A. Legs 28, whose number and thickness are preferably minimized to reduce air turbulence and whose shape is similarly chosen to reduce air turbulence, supporttop 26 at the appropriate height abovebase 24. It has been found that a useful minimum separation ofbase 24 fromtop 26 is about ½ the length of theramp surface 40 as described below. -
Base 24, as shown inFIG. 1-4 , is circular in top view and has a centralcylindrical opening 34 for receiving thevent pipe 18, as shown in dotted outline inFIG. 3 . Thebottom surface 36 ofbase 24 is flat. The circular outer circumference ofbase 24 forms a generally vertical rim oredge 38. A radially extendingramp 40 is formed on the upper surface ofbase 24 between theouter edge 38 andcentral opening 34. The surface oframp 40 is curved, with a smoothly increasing tangential angle, being almost flat atedge 38 to about 80 degrees at opening 34. The vertical height of the ramp rises about one-half its surface distance over the curvature of the ramp from outer to inner edge. The radial length of the ramp is preferably roughly the same as the radius of opening 34. The shape oframp 40 causes the moving air to be accelerated upwardly away from theexhaust port 34. The shape oframp 34, in combination with the shape ofsurface 32, causes a low pressure effect aboveexhaust port 34 causing the vapors to be drawn upwardly from holdingtank 10. - To further improve the operation of the device,
radial channeling vanes 48 which extend vertically fromramp 40 may be provided.Vanes 48 serve to focus and direct the air flow toward the center of the device, and reducing the amount of air that slips around the side of the raised inner area of the device. Due to the radial direction of the vanes, the space between vanes decreases towards the center of the device, thereby funneling, concentrating and magnifying the air flow as it reaches the center of the device, and further increasing the air speed and lowering the air pressure aboveexhaust port 34. The height of thevanes 48 aboveramp 40 is preferably 5% to 10% of the length of the surface oframp 40. - In this way a small movement of air can be channeled by the
vent cap 22 to significantly reduce the air pressure aboveexhaust port 34 to draw vapors from holdingtank 10 even with light air movement from any direction. Since the device is symmetrical about the central axis the movement of air can be from any direction relative to the device. - While the device has been described in the context of a vent cap for a holding tank, it will be apparent to the person skilled in the art that the present invention will have application in other venting applications also including chimneys, other types of roof vents, and other transportation vehicles.
- As will be apparent to those skilled in the art in the light of the foregoing disclosure, many alterations and modifications are possible in the practice of this invention without departing from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the following claims.
Claims (19)
1. A vent cap for venting an exhaust gas passage, comprising:
i) a generally circular base having a central opening for communicating with said exhaust gas passage and a generally circular perimeter, and an upper ramp surface extending between said perimeter and said central opening, said ramp surface having an increasing slope as the distance from the central opening decreases;
ii) a top cover element supported above said base and having an outer edge and providing a convex lower surface extending at its lowest point below said outer edge to thereby in combination with said base cause a low pressure effect above said exhaust gas passage when air moves through said cap; and
iii) means for supporting said top cover element above said base.
2. The vent cap of claim 1 further comprising a plurality of spaced, radially extending vanes projecting upwardly from said upper ramp surface.
3. The vent cap of claim 2 wherein said vanes extend above said ramp surface a distance which is 5% to 10% of the length of said ramp surface.
4. The vent cap of claim 1 wherein said top cover element comprises a convex upper surface.
5. The vent cap of claim 1 wherein said top cover element and said base have a minimum separation of approximately ½ the length of said ramp surface.
5. The vent cap of claim 1 wherein said ramp surface is curved with a smoothly increasing tangential angle
6. The vent cap of claim 1 wherein said ramp surface is approximately horizontal at its outer edge and is about 80 degrees at the central opening.
7. The vent cap of claim 1 wherein said ramp surface rises about one-half its surface distance over the curvature of the ramp from outer to inner edge.
8. The vent cap of claim 1 wherein the radial length of said ramp surface is approximately the same as the radius of said central opening.
9. The vent cap of claim 1 wherein said means for supporting said top cover element above said base comprise a plurality of legs.
10. A vent cap for venting an exhaust gas passage, comprising:
i) a generally circular base having a central opening for communicating with said exhaust gas passage and a generally circular perimeter, and an upper ramp surface extending between said perimeter and said central opening, said ramp surface having an increasing slope as the distance from the central opening decreases;
ii) a top cover element supported above said base and having an outer edge and providing a convex lower surface extending at its lowest point below said outer edge to thereby in combination with said base cause a low pressure effect above said exhaust gas passage when air moves through said cap;
iii) means for supporting said top cover element above said base; and
iv) a plurality of spaced, radially extending vanes projecting upwardly from said upper ramp surface.
11. The vent cap of claim 10 wherein said vanes extend above said ramp surface a distance which is 5% to 10% of the length of said ramp surface.
12. The vent cap of claim 10 wherein said top cover element comprises a convex upper surface.
13. The vent cap of claim 10 wherein said top cover element and said base have a minimum separation of approximately ½ the length of said ramp surface.
14. The vent cap of claim 10 wherein said ramp surface is curved with a smoothly increasing tangential angle
15. The vent cap of claim 10 wherein said ramp surface is approximately horizontal at its outer edge and is about 80 degrees at the central opening.
16. The vent cap of claim 10 wherein said ramp surface rises about one-half its surface distance over the curvature of the ramp from outer to inner edge.
17. The vent cap of claim 10 wherein the radial length of said ramp surface is approximately the same as the radius of said central opening.
18. The vent cap of claim 10 wherein said means for supporting said top cover element above said base comprise a plurality of legs.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/994,468 US20060111034A1 (en) | 2004-11-23 | 2004-11-23 | Omnidirectional vent cap |
PCT/CA2005/001778 WO2006056056A1 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
CA002589282A CA2589282A1 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
US11/720,048 US8298053B2 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
US13/661,889 US20130045669A1 (en) | 2004-11-23 | 2012-10-26 | Omnidirectional vent cap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/994,468 US20060111034A1 (en) | 2004-11-23 | 2004-11-23 | Omnidirectional vent cap |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/720,048 Continuation-In-Part US8298053B2 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
PCT/CA2005/001778 Continuation-In-Part WO2006056056A1 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
US72004807A Continuation-In-Part | 2004-11-23 | 2007-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060111034A1 true US20060111034A1 (en) | 2006-05-25 |
Family
ID=36461533
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/994,468 Abandoned US20060111034A1 (en) | 2004-11-23 | 2004-11-23 | Omnidirectional vent cap |
US11/720,048 Active 2027-03-29 US8298053B2 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
US13/661,889 Abandoned US20130045669A1 (en) | 2004-11-23 | 2012-10-26 | Omnidirectional vent cap |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/720,048 Active 2027-03-29 US8298053B2 (en) | 2004-11-23 | 2005-11-22 | Omnidirectional vent cap |
US13/661,889 Abandoned US20130045669A1 (en) | 2004-11-23 | 2012-10-26 | Omnidirectional vent cap |
Country Status (3)
Country | Link |
---|---|
US (3) | US20060111034A1 (en) |
CA (1) | CA2589282A1 (en) |
WO (1) | WO2006056056A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US20080124553A1 (en) * | 2006-11-20 | 2008-05-29 | Terrance Davidson Hurt | Heat dispersing enclosure |
NL2008160C2 (en) * | 2011-09-05 | 2013-03-07 | Wilhelmus Josephus Alex Wall | ELEMENTS THAT MAKE USE OF AIRFLOW ALONG BUILDINGS TO DRAIN IRRADIATED SUN HEAT THROUGH THE SPOW. |
US8696416B1 (en) * | 2009-08-21 | 2014-04-15 | European Copper, Llc | Multi-Purpose chimney cap device |
US20150219347A1 (en) * | 2012-09-07 | 2015-08-06 | Csr Building Products Limited | Rotor ventilator |
EP3068203A1 (en) * | 2015-03-12 | 2016-09-14 | Alcatel Lucent | A cooling system, a method for cooling and an electronic apparatus |
US9695594B2 (en) | 2015-06-16 | 2017-07-04 | Liberty Diversified International, Inc. | Ridge vent |
US10596888B2 (en) | 2017-02-21 | 2020-03-24 | Sportech, Llc | Vent with integrated detent |
CN112942733A (en) * | 2021-02-01 | 2021-06-11 | 联知(北京)技术服务有限公司 | Wind cap |
USD929805S1 (en) * | 2020-09-02 | 2021-09-07 | William Todd Hamilton | Wheel chimney cap |
WO2022068888A1 (en) * | 2020-09-29 | 2022-04-07 | 芜湖美的厨卫电器制造有限公司 | Pipe assembly and heating apparatus |
USD984627S1 (en) * | 2023-01-17 | 2023-04-25 | Wei Huang | Exhaust fan |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090053990A1 (en) * | 2007-08-15 | 2009-02-26 | Canplas Industries Ltd. | Roof vent for venting a building enclosure |
US20100015908A1 (en) * | 2008-07-16 | 2010-01-21 | Leon Prevost | Vent cover plate |
US8845406B2 (en) * | 2010-05-07 | 2014-09-30 | Andrew McIver | Vent sealing device and system |
US9091439B2 (en) * | 2010-05-12 | 2015-07-28 | Lawrence A. Brown | Chimney damper |
US8461715B2 (en) * | 2010-10-10 | 2013-06-11 | Hong Kong Applied Science and Technology Research Institute Company Limited | Apparatus for wind collection |
JP5747152B2 (en) * | 2010-11-12 | 2015-07-08 | パナソニックIpマネジメント株式会社 | Vent cap for ventilation |
CA2753482C (en) | 2011-09-22 | 2018-03-06 | Canplas Industries Ltd. | Vent for venting a building enclosure |
US9534392B2 (en) | 2014-02-24 | 2017-01-03 | Liberty Diversified International, Inc. | Telescoping pipe boot |
US9869095B2 (en) * | 2014-08-21 | 2018-01-16 | Solarcity Corporation | Exhaust gas panel vent assembly for roof-mounted photovoltaic systems |
US10323418B2 (en) | 2014-10-10 | 2019-06-18 | Solarcity Corporation | Vent cover assembly for use with roof-mounted photovoltaic systems |
US9328514B1 (en) * | 2015-03-09 | 2016-05-03 | Michael Thompson | Roof-mounted vent pipe covering apparatus, kit, and related methods |
CN104971567A (en) * | 2015-07-07 | 2015-10-14 | 叶建荣 | Air purifier capable of performing 360 DEG air inlet/outlet |
US10690375B2 (en) | 2016-06-27 | 2020-06-23 | Ronald C Parry | Exhaust ventilator |
US20180266715A1 (en) * | 2017-03-20 | 2018-09-20 | Daniel Edmiston | Wind Powered Gas Extractor |
US11306917B2 (en) * | 2018-03-27 | 2022-04-19 | Roof Goose Vent Llc | Flue cap cover |
USD1023282S1 (en) | 2020-07-31 | 2024-04-16 | Ipex Technologies Inc. | Rain cap for gas venting system |
USD1028210S1 (en) * | 2021-12-16 | 2024-05-21 | Obvious Innovations Llc | Air vent |
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US8461715B2 (en) * | 2010-10-10 | 2013-06-11 | Hong Kong Applied Science and Technology Research Institute Company Limited | Apparatus for wind collection |
-
2004
- 2004-11-23 US US10/994,468 patent/US20060111034A1/en not_active Abandoned
-
2005
- 2005-11-22 WO PCT/CA2005/001778 patent/WO2006056056A1/en active Application Filing
- 2005-11-22 CA CA002589282A patent/CA2589282A1/en not_active Abandoned
- 2005-11-22 US US11/720,048 patent/US8298053B2/en active Active
-
2012
- 2012-10-26 US US13/661,889 patent/US20130045669A1/en not_active Abandoned
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US3382792A (en) * | 1965-08-16 | 1968-05-14 | Ben O. Howard | Omnidirectional exhaust ventilator |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080124553A1 (en) * | 2006-11-20 | 2008-05-29 | Terrance Davidson Hurt | Heat dispersing enclosure |
US8696416B1 (en) * | 2009-08-21 | 2014-04-15 | European Copper, Llc | Multi-Purpose chimney cap device |
NL2008160C2 (en) * | 2011-09-05 | 2013-03-07 | Wilhelmus Josephus Alex Wall | ELEMENTS THAT MAKE USE OF AIRFLOW ALONG BUILDINGS TO DRAIN IRRADIATED SUN HEAT THROUGH THE SPOW. |
US20150219347A1 (en) * | 2012-09-07 | 2015-08-06 | Csr Building Products Limited | Rotor ventilator |
US9644854B2 (en) * | 2012-09-07 | 2017-05-09 | Csr Building Products Limited | Rotor ventilator |
EP3068203A1 (en) * | 2015-03-12 | 2016-09-14 | Alcatel Lucent | A cooling system, a method for cooling and an electronic apparatus |
US9695594B2 (en) | 2015-06-16 | 2017-07-04 | Liberty Diversified International, Inc. | Ridge vent |
US10596888B2 (en) | 2017-02-21 | 2020-03-24 | Sportech, Llc | Vent with integrated detent |
USD929805S1 (en) * | 2020-09-02 | 2021-09-07 | William Todd Hamilton | Wheel chimney cap |
WO2022068888A1 (en) * | 2020-09-29 | 2022-04-07 | 芜湖美的厨卫电器制造有限公司 | Pipe assembly and heating apparatus |
CN112942733A (en) * | 2021-02-01 | 2021-06-11 | 联知(北京)技术服务有限公司 | Wind cap |
USD984627S1 (en) * | 2023-01-17 | 2023-04-25 | Wei Huang | Exhaust fan |
Also Published As
Publication number | Publication date |
---|---|
US20130045669A1 (en) | 2013-02-21 |
US20080096480A1 (en) | 2008-04-24 |
US8298053B2 (en) | 2012-10-30 |
CA2589282A1 (en) | 2006-06-01 |
WO2006056056A1 (en) | 2006-06-01 |
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