EP0945560B1 - Roof ventilator - Google Patents
Roof ventilator Download PDFInfo
- Publication number
- EP0945560B1 EP0945560B1 EP99105618A EP99105618A EP0945560B1 EP 0945560 B1 EP0945560 B1 EP 0945560B1 EP 99105618 A EP99105618 A EP 99105618A EP 99105618 A EP99105618 A EP 99105618A EP 0945560 B1 EP0945560 B1 EP 0945560B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roof
- walls
- ventilator
- lower wall
- wall
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D1/30—Special roof-covering elements, e.g. ridge tiles, gutter tiles, gable tiles, ventilation tiles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/17—Ventilation of roof coverings not otherwise provided for
Definitions
- This invention is concerned with improvements in a roof ventilator and is particularly concerned with a covert ventilator for pitched tiled roofs.
- roof ventilators are disclosed in DE-U 93 09 676.3, see figures 1 and 2, GB 21 99 860, see Figures 17 and 22, GB 22 62 295, see Figure 4, GB 22 79 675, see Figure 4, GB 22 85 817, see Figure 2, DE-U 93 08 401, see Figure 3b and EP 0 663 487, see Figure 5.
- One of the main disadvantages of these and other prior art ventilators resides in their method of manufacture in that they are usually comprised of several pre-formed pieces of plastics material which are joined together by a suitable epoxy adhesive. Because the ventilators are formed in this way they are susceptible to deterioration, at the sealed joints between the pre-formed pieces thereof. This in turn causes the ingress of rainwater to the underside of the tiles on a roof with the result that the fabric of the dwelling may be harmed.
- ventilators include upwardly facing grille members for facilitating the ventilation of the underside of the tile and roof space, see GB 2199860 and GbM 9308401. Such arrangements are susceptible to internal blockage due to excess detritus collecting within the ventilator.
- Other ventilators see DE-U 93 09 676. GB 22 62 295 and
- EP 0 663 487 are provided with elongate ventilation apertures at a toe end portion of the ventilator unit; however, no provision is made for preventing the ingress of small mammals and birds or driven rain and snow to the inside of the ventilator unit. This may be particularly deleterious in inclement weather conditions when driven snow may pack into the ventilator and interfere with its efficiency.
- the present invention seeks to obviate or mitigate the drawbacks of prior art ventilators and thus provides a roof ventilator of hollow configuration in use comprising an upper wall of shape complementary to tiles with which the ventilator is used and a lower wall hingedly connected thereto and spaced therefrom the ventilator being formed as a planar configuration in which the upper and lower walls are disposed in the same plane, characterised in that the lower wall is provided with attachment means to facilitate the attachment of a tile blank element to the lower wall.
- the upper and lower walls are hingedly connected by a flexible web, which is provided between the upper and lower walls.
- the flexible web is formed integrally with the upper and lower walls as a unitary moulding of plastics material, viz polypropylene.
- the lower wall is provided with an aperture to facilitate in use the ventilation of a roof on which the ventilator is used.
- the upper and lower walls are provided with mutually aligned catch members which, when the upper wall is hingedly closed upon the lower wall to form the hollow configuration in use, enable the two walls to be fixedly secured together.
- the upper and lower walls have baffle elements formed thereon which baffle elements, when the upper wall is hingedly closed upon the lower wall in use, lie between the two walls to prevent the ingress, in use, of detritus and large insects.
- the present invention also provides a method of ventilating a roof comprising the steps of:
- the present invention provides a ventilator unit that does not rely on the durability of adhesives used for joining separate parts of a ventilator together but provides a hinged unit that clips together in a closed box-like configuration.
- the present invention thus comprises a roof ventilator unit 10 provided by a unitary moulding of polypropylene.
- the unit 10, see Figure 1 generally comprises a shallow tray 12 and a hinged lid 14 providing in use a box like structure as shown in Figure 2.
- the tray 12 comprises a lower wall 13 and upstanding from the lower wall 13 are left and right side walls 16 and 18 respectively and a rear wall 20.
- the tray 12 is open at its forward end portion 22 for a purpose to be made clear hereinafter.
- the lower wall 13 is provided with an elongate aperture 24 bounded by an upstanding wall 26 of an elongate downpipe 28 that depends below the lower wall 13, see Figures 8 and 9.
- the unit 10 is provided with two memorid rows of integrally formed baffle elements 32 upstanding from said wall 13. Rearwardly of said baffle elements 32, see Figure 1, the wall 13 is provided with four equi-spaced batten bearers 34.
- the wall 13 is provided with two pairs of elongate nailing bosses 36.
- the unit 10 is also provided with strengthening and spacing mid-wall elements 38 and 40 upstanding from the wall 13 and extending longitudinally therealong, see Figure 1.
- the wall 13 also includes a series of snap-fit protuberances 42 formed integrally therewith towards its forward end portion 22, only one such protuberance 42 being shown in Figure 1 and the purpose of which will be explained herinafter.
- the lower wall 13 is also provided with aligned ribs 44, 44a and 44b depending from an underside thereof for facilitating, in use, the ease with which the unit 10 may be located against a roof batten during its placement on a roof.
- the hinged lid 14 comprises an upper wall 52 of the unit 10 which wall, see Figure 1, is provided with a row of baffle elements 54 and spaced nail housings 56a, 56b, 56c and 56d upstanding from the wall 52 as seen in Figure 1.
- the lid 14 also comprises two latch elements 58 and 60 at left and right hand sides thereof respectively, the purpose of which will be made clear herinafter.
- the lid 14 of the unit 10 is integrally formed with the tray 12 as a unitary moulding of polypropylene as aforesaid, the lid 14 being joined to the tray 12 by a flexible web 62, see Figure 8.
- a tiler prepares a roof by laying a row of tiles T, and attaches by tacking or nailing cut back underlay portion 70 to the next in line batten 72 above a ventilator aperture formed in the roof structure, see Figure 3.
- a plain tile underlay seal 74 is then positioned as shown in Figure 4.
- the tiler next positons an open form unit 10 on the roof structure with the ribs 44, 44a and 44b in locating engagement with an upper edge 76 of a batten 73 i.e. the batten next below the batten 72 of the roof structure. He then attaches the unit 10 to the roof structure using felt tacks 78 and nails 80 as shown in Figures 5 and 6.
- the unit 10 has a plain tile blank element 75 pre-attached thereto by means of the snap-fit protuberances 42.
- the tiler then folds the hinged lid 14 to overlie the tray 12 and causes the latch elements 58 and 60 to be brought into locking engagement with associated detents 68 and 69 respectively provided in the side wall 16 and 18 of the tray 12, see Figure 5.
- the latch elements 58 and 60 and the detents 68 and 69 being aligned catch members enable the two walls (52, 13) to be fixedly secured together.
- clip portions 38a and 40a located on an underside of the lid 14, see Figures 1 and 2 are brought into holding engagement with their respective mid-wall elements 38 and 40, see Figure 6.
- the ventilator unit 10 is thus reduced to its box-like structure as shown in Figures 2 and 6 in which the baffle elements 54 of the lid 14 lie between the two rows of baffle elements 32, see Figure 9, and the nail housings 56a, 56b, 56c and 56d overlie and surround the nailing bosses 36a, 36b, 36c and 36d.
- the baffle elements 54 and 32 provide preventative means against the ingress of small birds, mammals and large insects to the roof space through an elongate aperture 82, defined between toe end portions 84 and 86 of the tray 12 and lid 14, and through the aperture 24 provided in the lower wall of the tray 12.
- the nail housings 56a, 56b, 56c and 56d shelter and provide barriers against the ingress of driven rain and derivatives to the nail bosses 36a, 36b, 36c and 36d respectively.
- the ventilator unit described herein envisages the hinged connection being between the upper and lower walls of the unit at the upper end portions thereof.
- the unit may comprise more than one hinged walls and the hinged connections may be at the sides or toe portions of the unit.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
- Catching Or Destruction (AREA)
Description
- This invention is concerned with improvements in a roof ventilator and is particularly concerned with a covert ventilator for pitched tiled roofs.
- Since the advent of ventilation devices for use on pitched tiled roofs, many variations of device have been proposed most of which are provided by overt configurations which extend above a plane of the tiled roof and appear somewhat obtrusive and not altogether aesthetically pleasing. Lately, however, in response to the wishes of architects and designers, efforts have been made to introduce covert designs of roof ventilator which are aesthetically pleasing in that they do not detract from the symmetry of a roofscape in which they are used.
- Examples of roof ventilators are disclosed in DE-U 93 09 676.3, see figures 1 and 2, GB 21 99 860, see Figures 17 and 22,
GB 22 62 295, see Figure 4,GB 22 79 675, see Figure 4,GB 22 85 817, see Figure 2, DE-U 93 08 401, see Figure 3b and EP 0 663 487, see Figure 5. One of the main disadvantages of these and other prior art ventilators resides in their method of manufacture in that they are usually comprised of several pre-formed pieces of plastics material which are joined together by a suitable epoxy adhesive. Because the ventilators are formed in this way they are susceptible to deterioration, at the sealed joints between the pre-formed pieces thereof. This in turn causes the ingress of rainwater to the underside of the tiles on a roof with the result that the fabric of the dwelling may be harmed. - In addition, several ventilators include upwardly facing grille members for facilitating the ventilation of the underside of the tile and roof space, see GB 2199860 and GbM 9308401. Such arrangements are susceptible to internal blockage due to excess detritus collecting within the ventilator. Other ventilators, see DE-U 93 09 676.
GB 22 62 295 and - EP 0 663 487 are provided with elongate ventilation apertures at a toe end portion of the ventilator unit; however, no provision is made for preventing the ingress of small mammals and birds or driven rain and snow to the inside of the ventilator unit. This may be particularly deleterious in inclement weather conditions when driven snow may pack into the ventilator and interfere with its efficiency.
- The present invention seeks to obviate or mitigate the drawbacks of prior art ventilators and thus provides a roof ventilator of hollow configuration in use comprising an upper wall of shape complementary to tiles with which the ventilator is used and a lower wall hingedly connected thereto and spaced therefrom the ventilator being formed as a planar configuration in which the upper and lower walls are disposed in the same plane, characterised in that the lower wall is provided with attachment means to facilitate the attachment of a tile blank element to the lower wall.
- Preferably the upper and lower walls are hingedly connected by a flexible web, which is provided between the upper and lower walls.
- Conveniently the flexible web is formed integrally with the upper and lower walls as a unitary moulding of plastics material, viz polypropylene.
- Conveniently, the lower wall is provided with an aperture to facilitate in use the ventilation of a roof on which the ventilator is used.
- Preferably the upper and lower walls are provided with mutually aligned catch members which, when the upper wall is hingedly closed upon the lower wall to form the hollow configuration in use, enable the two walls to be fixedly secured together.
- In a preferred embodiment of the invention the upper and lower walls have baffle elements formed thereon which baffle elements, when the upper wall is hingedly closed upon the lower wall in use, lie between the two walls to prevent the ingress, in use, of detritus and large insects.
- The present invention also provides a method of ventilating a roof comprising the steps of:
- a) tiling a roof with tiles adjacent an aperture in a roof;
- b) placing a hinged ventilator unit with its lower wall overlying an upper most row of roof tiles adjacent said aperture;
- c) fixing the lower wall in situ;
- d) hingedly closing the upper wall upon the lower wall until aligned latch members on the walls are interengaged to secure the two walls together;
- e) attaching a tile blank element to the lower wall by the attachment means; and,
- f) completing the tiling of the roof.
-
- There now follows by way of example of the invention a specific description of the novel ventilator and its method of use which description is to be read with reference to the accompanying drawings in which:
- Fig. 1
- is an upper left hand perspective view of a ventilator unit provided by the invention and shown in an open condition,
- Fig. 2
- is a view corresponding to Figure 1 but with the unit shown in a closed condition,
- Fig. 3
- to 7 show the method of fixing the novel ventilator to a roof structure,
- Fig. 8
- is a section view taken along the line VIII - VIII of Figure 5 and
- Fig. 9
- is a section view taken along the line IX - IX of Figure 7.
- The development of roof ventilators has led in recent times to the design of the so called covert roof ventilator many of which include design faults which can have a detrimental effect on the integrity of the roof in which they are used. In overcoming the perceived disadvantages of prior art ventilators the present invention provides a ventilator unit that does not rely on the durability of adhesives used for joining separate parts of a ventilator together but provides a hinged unit that clips together in a closed box-like configuration.
- The present invention thus comprises a
roof ventilator unit 10 provided by a unitary moulding of polypropylene. Theunit 10, see Figure 1, generally comprises ashallow tray 12 and ahinged lid 14 providing in use a box like structure as shown in Figure 2. Thetray 12 comprises alower wall 13 and upstanding from thelower wall 13 are left andright side walls rear wall 20. Thetray 12 is open at itsforward end portion 22 for a purpose to be made clear hereinafter. - Towards the
rear wall 20, thelower wall 13 is provided with anelongate aperture 24 bounded by anupstanding wall 26 of anelongate downpipe 28 that depends below thelower wall 13, see Figures 8 and 9. - At a
mid-portion 30 of thelower wall 13, see Figure 1, theunit 10 is provided with two seried rows of integrally formedbaffle elements 32 upstanding fromsaid wall 13. Rearwardly of saidbaffle elements 32, see Figure 1, thewall 13 is provided with four equi-spacedbatten bearers 34. - Forwardly of said
baffle elements 32, see Figure 1, thewall 13 is provided with two pairs ofelongate nailing bosses 36. - The purposes for the
batten bearers 34 and nailingbosses 36 will be made clear herinafter. Theunit 10 is also provided with strengthening and spacingmid-wall elements wall 13 and extending longitudinally therealong, see Figure 1. - The
wall 13 also includes a series of snap-fit protuberances 42 formed integrally therewith towards itsforward end portion 22, only onesuch protuberance 42 being shown in Figure 1 and the purpose of which will be explained herinafter. - The
lower wall 13 is also provided with alignedribs unit 10 may be located against a roof batten during its placement on a roof. - The hinged
lid 14 comprises anupper wall 52 of theunit 10 which wall, see Figure 1, is provided with a row ofbaffle elements 54 and spacednail housings wall 52 as seen in Figure 1. - The
lid 14 also comprises twolatch elements - The
lid 14 of theunit 10 is integrally formed with thetray 12 as a unitary moulding of polypropylene as aforesaid, thelid 14 being joined to thetray 12 by aflexible web 62, see Figure 8. - In using the ventilator of the present invention a tiler prepares a roof by laying a row of tiles T, and attaches by tacking or nailing cut back
underlay portion 70 to the next inline batten 72 above a ventilator aperture formed in the roof structure, see Figure 3. - A plain
tile underlay seal 74 is then positioned as shown in Figure 4. - The tiler next positons an
open form unit 10 on the roof structure with theribs upper edge 76 of abatten 73 i.e. the batten next below thebatten 72 of the roof structure. He then attaches theunit 10 to the roof structure usingfelt tacks 78 andnails 80 as shown in Figures 5 and 6. Theunit 10 has a plain tileblank element 75 pre-attached thereto by means of the snap-fit protuberances 42. - The tiler then folds the hinged
lid 14 to overlie thetray 12 and causes thelatch elements detents side wall tray 12, see Figure 5. Thelatch elements detents addition clip portions lid 14, see Figures 1 and 2, are brought into holding engagement with theirrespective mid-wall elements - The
ventilator unit 10 is thus reduced to its box-like structure as shown in Figures 2 and 6 in which thebaffle elements 54 of thelid 14 lie between the two rows ofbaffle elements 32, see Figure 9, and thenail housings nailing bosses - In this condition, the
baffle elements elongate aperture 82, defined betweentoe end portions tray 12 andlid 14, and through theaperture 24 provided in the lower wall of thetray 12. - Also, when the unit is reduced to its box-like structure, the
nail housings nail bosses - The ventilator unit described herein envisages the hinged connection being between the upper and lower walls of the unit at the upper end portions thereof. However, in other arrangements according to the invention the unit may comprise more than one hinged walls and the hinged connections may be at the sides or toe portions of the unit.
Claims (10)
- A roof ventilator (10) of hollow configuration in use comprising an upper wall (52) of shape complementary to tiles with which the ventilator (10) is used and a lower wall (13) hingedly connected thereto and spaced therefrom characterised in that the ventilator (10) being formed as a planar configuration in which the upper and lower walls (52, 13) are disposed in the same plane, characterised in that the lower wall (13) is provided with attachment means (42) to facilitate the attachment of a tile blank element (75) to the lower wall (13).
- A roof ventilator according to Claim 1 characterised in that the upper and lower walls (52, 13) are hingedly connected by a flexible web (62) which is provided between the upper and lower walls (52, 13).
- A roof ventilator according to Claim 2 characterised in that the flexible web (62) is formed integrally with the upper and lower walls (52, 13).
- A roof ventilator according to Claim 3 characterised in that the ventilator (10) is formed as a unitary moulding.
- A roof ventilator according to Claim 4 characterised in that the unitary moulding is of a plastics material.
- A roof ventilator according to Claim 5 characterised in that the plastics material is polypropylene.
- A roof ventilator according to any one of the preceding claims characterised in that the lower wall (13) is provided with an aperture (24) to facilitate in use the ventilation of a roof on which the ventilator (10) is used.
- A roof ventilator according to any one of Claims 1 to 7 characterised in that the upper and lower walls (52, 13) are provided with mutually aligned catch members (56, 68; 60, 69) which, when the upper wall (52) is hingedly closed upon the lower wall (12) to form the hollow configuration in use, enable the two walls (52, 13) to be fixedly secured together.
- A roof ventilator according to Claim 8 characterised in that the upper and lower walls (52, 13) have baffle elements (54, 32) formed thereon which baffle elements (54, 32), when the upper wall (52) is hingedly closed upon the lower wall (13) in use, lie between the two walls (52, 13).
- A method of ventilating a roof comprising the steps of:a) tiling a roof with tiles adjacent an aperture in a roof;b) placing a hinged covert ventilator unit (10) with its lower wall (13) overlying an upper-most row of roof tiles adjacent said aperture;c) fixing the lower wall (13) in situ;d) hingedly closing the upper wall (52) upon the lower wall (13) until aligned catch members (56, 68; 60, 69) on the walls are interengaged to secure the two walls (52, 13) together;e) attaching a tile blank element (75) to the lower wall (13) by attachment means (42); and,f) completing the tiling of the roof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9805974A GB2335666B (en) | 1998-03-21 | 1998-03-21 | Roof ventilator |
GB9805974 | 1998-03-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0945560A2 EP0945560A2 (en) | 1999-09-29 |
EP0945560A3 EP0945560A3 (en) | 2000-11-02 |
EP0945560B1 true EP0945560B1 (en) | 2004-09-22 |
Family
ID=10828939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99105618A Expired - Lifetime EP0945560B1 (en) | 1998-03-21 | 1999-03-19 | Roof ventilator |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0945560B1 (en) |
DE (1) | DE69920309D1 (en) |
GB (1) | GB2335666B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19900316A1 (en) * | 1999-01-07 | 2000-07-13 | Kloeber Johannes | Roof vent |
US8292707B2 (en) * | 2007-11-21 | 2012-10-23 | Air Vent, Inc. | Off-peak air intake vent |
USD615218S1 (en) | 2009-02-10 | 2010-05-04 | Owens Corning Intellectual Capital, Llc | Shingle ridge vent |
US10370855B2 (en) | 2012-10-10 | 2019-08-06 | Owens Corning Intellectual Capital, Llc | Roof deck intake vent |
US10233650B2 (en) | 2015-01-12 | 2019-03-19 | Lomanco, Inc. | Roof vent |
GB2541744B (en) * | 2015-08-28 | 2018-05-02 | Solar Slate Plate Ltd | Roof item attachment apparatus & method |
GB2562996B (en) * | 2017-04-07 | 2020-03-11 | Manthorpe Building Products Ltd | Ventilation assembly for use with tiles having different widths of interlocking formations |
US11746531B1 (en) | 2021-09-16 | 2023-09-05 | Ross Manufacturing, Llc | Roof edge intake vent |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4297818A (en) * | 1980-03-27 | 1981-11-03 | Anderson Metal Products Corp. | Roof ventilating louver |
GB2199860B (en) | 1986-11-05 | 1991-07-17 | Glidevale Building Prod | Roof ventilation tile |
US5052286A (en) * | 1989-06-12 | 1991-10-01 | Greenstreak Plastic Products Company | Roof ridge ventilator |
GB9126308D0 (en) | 1991-12-11 | 1992-02-12 | Ubbink Uk Limited | Roof ventilating tile |
GB2262949A (en) * | 1992-01-03 | 1993-07-07 | Steetley Building Products Lim | Ventilator for a tiled roof |
DE9308401U1 (en) | 1993-06-04 | 1993-10-21 | Glidevale Building and Products Ltd., Pinxton, Nottingham | Roof ventilation tiles |
GB2279675A (en) | 1993-06-30 | 1995-01-11 | Toole Terence Edwin O | Roof ventilating tile |
DE9309676U1 (en) * | 1993-06-30 | 1993-11-11 | Kahlert, Karl-Heinz, 56566 Neuwied | Ventilation roof tiles |
NL9400059A (en) | 1994-01-13 | 1995-08-01 | Ubbink Nederland Bv | Roof tile for ventilation purposes. |
GB2285817B (en) | 1994-01-24 | 1998-07-08 | Toole Terence Edwin O | Extruded plastic roof tiles |
GB2290568B (en) * | 1994-06-25 | 1997-09-03 | Phi Design Ltd | A ventilated tile |
-
1998
- 1998-03-21 GB GB9805974A patent/GB2335666B/en not_active Expired - Fee Related
-
1999
- 1999-03-19 DE DE69920309T patent/DE69920309D1/en not_active Expired - Lifetime
- 1999-03-19 EP EP99105618A patent/EP0945560B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2335666B (en) | 2000-05-10 |
GB9805974D0 (en) | 1998-05-20 |
EP0945560A2 (en) | 1999-09-29 |
GB2335666A (en) | 1999-09-29 |
DE69920309D1 (en) | 2004-10-28 |
EP0945560A3 (en) | 2000-11-02 |
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