GB2411716A - Louvre - Google Patents

Louvre Download PDF

Info

Publication number
GB2411716A
GB2411716A GB0404914A GB0404914A GB2411716A GB 2411716 A GB2411716 A GB 2411716A GB 0404914 A GB0404914 A GB 0404914A GB 0404914 A GB0404914 A GB 0404914A GB 2411716 A GB2411716 A GB 2411716A
Authority
GB
United Kingdom
Prior art keywords
louvre
elongate
weather
crown
crown portion
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.)
Granted
Application number
GB0404914A
Other versions
GB0404914D0 (en
GB2411716B (en
Inventor
Peter Braybrook
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Levolux AT Ltd
Original Assignee
Levolux AT Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Levolux AT Ltd filed Critical Levolux AT Ltd
Priority to GB0404914A priority Critical patent/GB2411716B/en
Publication of GB0404914D0 publication Critical patent/GB0404914D0/en
Publication of GB2411716A publication Critical patent/GB2411716A/en
Priority to HK05108270A priority patent/HK1075488A1/en
Application granted granted Critical
Publication of GB2411716B publication Critical patent/GB2411716B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/52—Weather protecting means, e.g. against wind, rain or snow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

A louvre 11 comprises an elongate nose portion 16, an elongate crown portion 17 having an arched shape, and an elongate intermediate portion 18 between the nose 16 and crown 17 portions. Crown portion 17 may be convex having a first upward curved portion 17a and a second downward curved portion 17b providing low resistance to air flow. Nose portion 16 may be non vertical, may have a convex upper surface and may comprise a lip 23 turned inwards. An elongate gutter 21 on an upper surface of the crown portion 17 and an elongate gutter 22 on an underside of the crown portion 17 may be provided to trap residual moisture carried by the air flow. Intermediate portion 18 may have a shallow concaved surface or may be multi-faceted such that the entire louvre 11 is swan-neck shaped and restricts rain from entering a building. Elongate formations 19, 20 on the crown portion 17 may be clipped into formations 14, 15 of a bracket 10. Louvres 11 may be spaced in an assembly such that it is not possible to see though the assembly. The assembly may be provided with a bird and/or insect screen.

Description

AN ARCHITECTURAL WEATHER LOUVRE
This invention relates to an elongate architectural weather louvre and to an assembly of such louvres which are intended to prevent or substantially prevent rain entering through an opening in a building or other structure but which allows ventilation.
According to a first aspect of the present invention there is provided an elongate architectural weather louvre comprising an elongate nose portion adjacent to one longitudinal edge, an elongate crown portion adjacent to the other longitudinal edge and an elongate intermediate portion between the nose portion and the crown portion, the crown portion, with the louvre considered supported in use to extend horizontally, being convex and having a first upwardly curved or substantially curved portion adjacent to the intermediate portion and a second downwardly curved or substantially curved portion adjacent to said other longitudinal edge.
"Substantially curved" is intended to cover a multi-faceted crown having a minimum of five facets and preferably ten or more facets in order to minimise the resistance to air flow over the crown of the louvre as air flow changes direction. The facets could be curved or flat.
Preferred and/or optional features of the first aspect of the invention are set forth in claims 2 to 10, inclusive.
According to a second aspect of the invention, there is provided a louvre assembly comprising two or more spaced apart brackets supporting a plurality of louvres according to the first aspect of the invention in spaced apart relationship.
Preferred and/or optional features of the second aspect of the invention are set forth in claims 14 to 16, inclusive.
The invention will now be more particularly described, by way of example, with reference to the accompanying drawings, in which: Figure l is a cross-sectional view of one embodiment of a louvre assembly according to the second aspect of the invention and comprising a plurality of louvres each according to one embodiment of the first aspect of the invention, and Figure 2 shows the louvres of Figure 1 with the brackets omitted for clarity.
Referring firstly to Figure 1 of the drawings, the louvre assembly shown therein comprises two or more support brackets 10 which are spaced apart horizontally, typically by a distance of about 150 mm and a plurality of elongate weather louvres 11 supported in vertically spaced apart relationship by the brackets 10.
Each bracket 10 has a vertical limb 12 which is attached to a building or structure (not shown) having an opening to be protected from rain by the louvres 11.
Each bracket also has a plurality (as shown 3) of generally horizontally extending arms 13 for supporting the louvres 11. Each arm 13 has two spaced elongate formations 14 and 15 for co-operating with corresponding formations on a louvre 11.
Formation 14 is adjacent to the free end of its respective arm 13 and formation 15 is adjacent to the vertical limb 12.
The louvres 11 extend horizontally, but in vertically spaced apart relationship and typically have a length of 2400 to 3000 mm. The louvres 11 are typically of extruded aluminium.
Each louvre 11 comprises an elongate nose portion 16 adjacent to one longitudinal edge, an elongate crown portion 17 adjacent to the other longitudinal edge and an elongate intermediate portion 18 between the nose portion 16 and the crown portion 17.
The nose portion 16 is non-vertical and preferably, as shown, has a convex upper surface.
The crown portion 17 has a convex upper surface which, as shown, is of substantially semi-cylindrical shape and has a first upwardly curved portion 17a adjacent to the intermediate portion 18 and a second downwardly curved portion 17_ adjacent to the longitudinal free edge of the crown portion 17. The crown 17 could be of other arched shape.
The crown portion 17 also has two elongate formations 19 and 20 which cooperate respectively with the formations 14 and 15 of the brackets 10 in order to clip the louvres in position. The crown portion 17 also has two elongate gutters 21 and 22, both adjacent its longitudinal free edge. The gutter 21 is on the upper surface of the louvre 11 and the gutter 22 is on the lower surface of the louvre and these gutters serve to trap any residual moisture which may be carried through the assembly of louvres by air flow.
The gradient of the intermediate portion 18 increases from the nose portion 16 towards the crown portion 17 and preferably as shown has a shallow concave upper surface.
The free edge of the nose portion 16 has an in-turned lip 23.
As will be noted, the louvres 11 are of swan-neck shape in transverse cross section and the smoothly curved surface portions of each of the louvres form an aerodynamic shape which offers least resistance to air flow through the louvre assembly but yet which serves to restrict the entry of rain into the building or structure.
Although the crown portion 17 is described above as being of substantially semi-cylindrical shape, it could be of other curved shapes and could, for example, have a more steeply curved portion 17a and a less steeply inclined portion 17b.
Ideally, the space between the louvres 11 is such that it is not possible to see through the louvre assembly, although in some circumstances this is not essential. In order that it is not possible to see through the louvre assembly, the curved portion 17_ of the crown 17 should extend downwardly sufficiently to ensure no vision when the 1ouvres are spaced apart vertically at a pitch of 50 millimetres.
The louvre assembly may also be provided with a bird and/or insect screen.
As described, the nose portion 16, crown portion 17 and intermediate portion 18 are all curved as this produces the least resistance to air flow through the louvre assembly. However, the nose portion could be flat although, in this case, it is preferably inclined to the vertical. The intermediate portion 18 could be multi-faceted although in this case the gradient of the intermediate portion preferably still increases from the nose portion 16 to the crown portion 17. The crown portion 17 could also be multi-faceted although in this case it should have a minimum of five facets and preferably ten or more facets in order to minimise the resistance to air flow over the crown portion 17 as the air flow changes direction.
The louvre assembly described above has been described with the louvres 11 extending horizontally. However, it would be possible to arrange the louvre assembly so that the louvres extend vertically.
The above embodiments are given by way of example only and various modifications will be apparent to persons skilled in the art without departing from the scope of the invention as defined by the appended claims. s

Claims (16)

1. An elongate architectural weather louvre comprising an elongate nose portion adjacent to one longitudinal edge, an elongate crown portion adjacent to the other longitudinal edge and an elongate intermediate portion between the nose portion and the crown portion, the crown portion, with the louvre considered supported in use to extend horizontally, being convex and having a f rst upwardly curved or substantially curved portion adjacent to the intermediate portion and a second downwardly curved or substantially curved portion adjacent to said other longitudinal edge.
2. A weather louvre as claimed in claim 1, wherein the gradient of the intermediate portion increases from the nose portion towards the crown portion.
3. A louvre as claimed in claim 2, wherein the intermediate portion is concave.
4. A weather louvre as claimed in any one of claims 1 to 3, wherein the nose portion is non-vertical.
5. A weather louvre as claimed in claim 4, wherein the nose portion is convex.
6. A weather louvre as claimed in any one of the preceding claims, wherein the upper surface of the crown portion of the louvre has a gutter adjacent to its free edge.
7. A weather louvre as claimed in any one of the preceding claims, wherein the underside of the crown portion of the louvre has a gutter adjacent to its free edge.
8. A weather louvre as claimed in any one of the preceding claims, wherein the crown portion is provided with a pair of spaced elongate formations for clipping the louvre to a bracket.
9. A weather louvre as claimed in any one of the preceding claims, wherein the free edge of the nose portion is provided with an in-turned lip.
10. A weather louvre as claimed in any one of the preceding claims, wherein the louvre is of swan-neck shape in transverse cross-section.
11. An elongate architectural weather louvre comprising an elongate nose portion adjacent to one longitudinal edge, an elongate crown portion adjacent to the other longitudinal edge and an elongate intermediate portion between the nose portion and the crown portion, the crown portion, with the louvre considered supported in use to extend horizontally, being of arched shape.
12. An elongate architectural weather louvre substantially as hereinbefore described with reference to the accompanying drawings.
13. A louvre assembly comprising two or more spaced apart brackets supporting a plurality of louvres as claimed in any one of the preceding claims in spaced apart relationship.
14. A louvre assembly as claimed in claim 13, wherein the space between the louvres is such that it is not possible to see through the louvre assembly.
15. A louvre assembly as claimed in claim 13 or claim 14 further provided with an insect screen.
16. A louvre assembly as claimed in any one of claims 13 to 15, further provided with a bird screen.
GB0404914A 2004-03-05 2004-03-05 An architectural weather louvre Expired - Lifetime GB2411716B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0404914A GB2411716B (en) 2004-03-05 2004-03-05 An architectural weather louvre
HK05108270A HK1075488A1 (en) 2004-03-05 2005-09-21 An architectural weather louvre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0404914A GB2411716B (en) 2004-03-05 2004-03-05 An architectural weather louvre

Publications (3)

Publication Number Publication Date
GB0404914D0 GB0404914D0 (en) 2004-04-07
GB2411716A true GB2411716A (en) 2005-09-07
GB2411716B GB2411716B (en) 2006-03-01

Family

ID=32088724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0404914A Expired - Lifetime GB2411716B (en) 2004-03-05 2004-03-05 An architectural weather louvre

Country Status (2)

Country Link
GB (1) GB2411716B (en)
HK (1) HK1075488A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482129A (en) * 2010-07-19 2012-01-25 Vkr Holding As Roof ventilation louvre having upward passages with concave upper surface
FR2969115A1 (en) * 2010-12-15 2012-06-22 Saipem Sa Ventilation and safety device for wall of building defining enclosure and ventilated containment in industrial facility, has motorized sliding unit that is supported by frame and cooperates with movable panel to enable longitudinal sliding
FR3045138A1 (en) * 2015-12-15 2017-06-16 Electricite De France VENTILATION GRILLE ANTI-INTEMPERIES

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL152973B (en) * 1968-12-12 1977-04-15 Colt Heating And Ventilation L VENTILATION GRILL.
GB2202934A (en) * 1987-02-06 1988-10-05 Hoesch Ag Device for covering of air vents in special vehicles
US4958555A (en) * 1989-10-23 1990-09-25 Mestek, Inc. Sight proof, drainable blade louver assembly
GB2328013A (en) * 1997-08-04 1999-02-10 Specialties Const Louver assembly
JP2000204856A (en) * 1999-01-07 2000-07-25 Fukusaka:Kk Louver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL152973B (en) * 1968-12-12 1977-04-15 Colt Heating And Ventilation L VENTILATION GRILL.
GB2202934A (en) * 1987-02-06 1988-10-05 Hoesch Ag Device for covering of air vents in special vehicles
US4958555A (en) * 1989-10-23 1990-09-25 Mestek, Inc. Sight proof, drainable blade louver assembly
GB2328013A (en) * 1997-08-04 1999-02-10 Specialties Const Louver assembly
JP2000204856A (en) * 1999-01-07 2000-07-25 Fukusaka:Kk Louver

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2482129A (en) * 2010-07-19 2012-01-25 Vkr Holding As Roof ventilation louvre having upward passages with concave upper surface
GB2482129B (en) * 2010-07-19 2012-12-19 Vkr Holding As Ventilation arrangements
FR2969115A1 (en) * 2010-12-15 2012-06-22 Saipem Sa Ventilation and safety device for wall of building defining enclosure and ventilated containment in industrial facility, has motorized sliding unit that is supported by frame and cooperates with movable panel to enable longitudinal sliding
FR3045138A1 (en) * 2015-12-15 2017-06-16 Electricite De France VENTILATION GRILLE ANTI-INTEMPERIES
WO2017102480A1 (en) * 2015-12-15 2017-06-22 Electricite De France Weatherproof fan grill
CN108700331A (en) * 2015-12-15 2018-10-23 法国电力公司 Weather-proof air grid
GB2561776A (en) * 2015-12-15 2018-10-24 Electricite De France Weatherproof fan grill
CN108700331B (en) * 2015-12-15 2021-02-02 法国电力公司 Weather-proof ventilation grille
GB2561776B (en) * 2015-12-15 2021-03-10 Electricite De France Weatherproof fan grill

Also Published As

Publication number Publication date
GB0404914D0 (en) 2004-04-07
HK1075488A1 (en) 2005-12-16
GB2411716B (en) 2006-03-01

Similar Documents

Publication Publication Date Title
US20160201329A1 (en) Gutter cover system
US8640402B1 (en) Building roof fascia, coping and/or solar panel connector arrangement
CA1188866A (en) Roof ridge ventilator
US6493993B1 (en) Gutter protector
USRE44212E1 (en) Gutter guard
US8316585B2 (en) Flexible gutter shield
US20160376790A1 (en) Covered gutter system
US20040187394A1 (en) Gutter shield
US20060037255A1 (en) Half round with hooks
US9404266B2 (en) Covered gutter system
US20130248672A1 (en) Rain gutter system
KR940007318A (en) Roof device
US20030110712A1 (en) Gutter shield
CA2597976A1 (en) Eavestrough cover for use with a drip edge
US8959840B1 (en) Gutter guard
EP1627974A2 (en) Half round with hooks
US20080190039A1 (en) Gutter Guard
GB2411716A (en) Louvre
US7721489B1 (en) Vented gutter and fascia systems
EP1449980A1 (en) Gutter shield
US20210062512A1 (en) Gutter guard for gutter and gutter assembly including same
US20060037254A1 (en) Half round with hooks
US8069619B1 (en) Vented gutter
JP7305148B2 (en) Gutter receiving structure and its construction method
JP5702940B2 (en) Solar panel eaves cover

Legal Events

Date Code Title Description
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1075488

Country of ref document: HK

REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1075488

Country of ref document: HK

PE20 Patent expired after termination of 20 years

Expiry date: 20240304