EP0509869A1 - Process for manufacturing a frame for a lighting coupole for obtaining a frame equipped with a profiled border - Google Patents

Process for manufacturing a frame for a lighting coupole for obtaining a frame equipped with a profiled border Download PDF

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Publication number
EP0509869A1
EP0509869A1 EP92400888A EP92400888A EP0509869A1 EP 0509869 A1 EP0509869 A1 EP 0509869A1 EP 92400888 A EP92400888 A EP 92400888A EP 92400888 A EP92400888 A EP 92400888A EP 0509869 A1 EP0509869 A1 EP 0509869A1
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EP
European Patent Office
Prior art keywords
curb
main body
frame
skin
profiled
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.)
Withdrawn
Application number
EP92400888A
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German (de)
French (fr)
Inventor
Benoît Loth
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.)
Industrielle Du Haras SA Ste
Original Assignee
Industrielle Du Haras SA Ste
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 Industrielle Du Haras SA Ste filed Critical Industrielle Du Haras SA Ste
Publication of EP0509869A1 publication Critical patent/EP0509869A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
    • E04D13/0305—Supports or connecting means for sky-lights of flat or domed shape
    • E04D13/0315—Supports or connecting means for sky-lights of flat or domed shape characterised by a curb frame

Definitions

  • the invention relates to curbs intended for mounting on the roof of lighting domes or smoke outlets and relates more precisely to a curb of molded plastic and its manufacturing process.
  • a lighting dome is articulated on a curb forming a generally square, rectangular or round frame, attached to the roof of a room and which delimits an opening.
  • Many curbs are made of metal, but the current trend is rather to manufacture them in molded plastic, for reasons among others, of weight, resistance to corrosion, but also for economic reasons.
  • a plastic curb must imperatively be very resistant and its upper edge must be able to receive and support a dome with its opening system.
  • the sides constituting the body of the curb which are vertical or inclined are advantageously formed of two plastic skins molded inside which is a filling material of the kind of a foam or other materials. The two skins meet at the upper border.
  • This upper border can be extended by a wider, profiled rim, oriented towards the outside of the opening, a rim which will allow easier fixing of the hinges of the opening mechanisms.
  • the stresses exerted on this profiled edge can be significant - in particular in case of wind - so it seemed necessary to make a one-piece curb including this profiled edge. So that this rim is continuous with the two skins, it is necessary, in order to produce the assembly, a mold in two parts, which very considerably complicates the production process, since an upper mold must be provided to form the profiled rim.
  • the Applicant has imagined and developed a production process which essentially consists in add a prefabricated plastic frame to the upper edge of a molded curb, under special fixing conditions.
  • the main object of the invention is therefore a method of manufacturing a lighting dome curb consisting of a main plastic body surrounding an opening and at the top of a profiled rim, which method consists in applying to a single profiled mold and over its entire height a plastic skin intended to constitute the inner wall of the main body of the curb, to fill this skin with a filling material, to coat said material with another plastic skin intended to constitute the outer wall of the main body of the curb, the upper part of this skin returning towards the mold to form the upper horizontal edge of the main body, and to attach and fix on said edge an independently prefabricated frame constituting the rim streamlined.
  • the frame is glued to the horizontal border of the main body during the stratification of the outer skin constituting the outer wall of the curb.
  • Another object of the invention consists of a curb having a main body made of plastic and a profiled rim oriented towards the outside, the profiled rim of which consists of a frame independent of the main body of the curb added to a horizontal border upper of said main body.
  • a heel 3 At its base is provided a heel 3 thanks to which the curb is held on a roof.
  • the upper edge is extended by a profiled rim 6 of smaller thickness oriented towards the outside of the opening 5.
  • FIG. 1 shows in more detail the structure of the curb obtained.
  • the main body 2 consists of an outer skin 8 and an inner skin 9 and between the two of a filling material 10 of the kind of a foam or other filling material. At the lower part, the two skins meet to form the heel 3. At the upper part, the outer skin 8 returns horizontally to the inner skin 9, this peripheral portion constitutes the upper horizontal border 11 of the main body. On this border 11 is attached a frame 6 independently prefabricated which constitutes the profiled edge mentioned above. Said frame is held fixed to the border by glue 12 or an equivalent product according to a process described below.
  • the method of manufacturing the curb 1 makes it possible to use only one mold 13 as seen in FIG. 3 in the case of the methods in contact and in simultaneous projection.
  • the inner skin 9 of the curb which extends from the end of the flat part 3 to the upper end of the part 2, is applied to this mold.
  • the filling material 10 is then attached to this inner skin, for example formed of polyurethane foam sheets.
  • the outer skin 8 which is superimposed on the first skin over the entire length of the flat 3, then it covers the foam up to the top of the vertical part, as well as on the upper horizontal edge of the foam where this skin 8 forms the upper horizontal border 11 of the main body.
  • the two skins are finally superimposed in a small portion of vertical height 14 against the upper end of the mold 13.
  • the upper edge 11 is coated with glue and then the frame 6 is applied there forming the rim when the skin 8 is still fresh so that there is penetration of the material of the rim into the border of the body.
  • the frame therefore sticks during the stratification of the outer skin forming the outer part of the composite "sandwich", and therefore cannot be torn from the main body of the curb.
  • the frame 6 is therefore supported by its inner edge against this small vertical part 14 which forms an upper structure of smaller thickness of the main body of the curb.
  • the body of the curb 1 as well as the upper edge 6 can be produced with other transformation methods such as injection between mold and against mold. The pieces thus produced will be glued later.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The frame of the lighting cupola obtained by the method is formed from a first plastic skin 9 intended to constitute the internal wall of the main body of the frame, from a filling material 10 over this skin, from another plastic skin 8 which constitutes the external wall of the main body of the frame, the upper part of this skin returning towards the centre in order to form the upper horizontal border 11 of the main body. In addition, an independently prefabricated framework 6, constituting the shaped rim, is joined in a fixed manner to this border. Application to lighting cupolas and smoke outlets. <IMAGE>

Description

L'invention se rapporte aux costières destinées au montage en toiture de coupoles d'éclairage ou d'exutoires de fumées et concerne plus précisément une costière en matière plastique moulée et son procédé de fabrication.The invention relates to curbs intended for mounting on the roof of lighting domes or smoke outlets and relates more precisely to a curb of molded plastic and its manufacturing process.

On sait qu'une telle coupole d'éclairage est articulée sur une costière formant un cadre généralement carré, rectangulaire ou rond, rapportée sur le toit d'un local et qui délimite une ouverture. Beaucoup de costières sont réalisées en métal, mais la tendance actuelle est plutôt de les fabriquer en matière plastique moulée, pour des raisons entre autres, de poids, de résistance à la corrosion, mais aussi pour de raisons économiques. Mais une costière en matière plastique doit cependant être impérativement très résistante et sa bordure supérieure doit être apte à recevoir et à supporter une coupole avec son système d'ouverture. Les flancs constituant le corps de la costière qui sont verticaux ou inclinés sont avantageusement formés de deux peaux en matière plastique moulées à l'intérieur desquelles se trouve un matériau de remplissage du genre d'une mousse ou autres matériaux. Les deux peaux se rejoignent au niveau de la bordure supérieure. Cette bordure supérieure peut se prolonger par un rebord profilé, plus large, orienté vers l'extérieur de l'ouverture, rebord qui permettra la fixation plus aisée des charnières des mécanismes d'ouvertures. Les contraintes exercées sur ce rebord profilé peuvent être importantes - en cas de vent notamment - aussi semblait-il nécessaire de réaliser une costière monobloc incluant ce rebord profilé. Pour que ce rebord soit continu avec les deux peaux, il faut, pour réaliser l'ensemble un moule en deux parties ce qui complique très sensiblement le procédé de réalisation, car un moule supérieur doit être prévu pour former le rebord profilé.We know that such a lighting dome is articulated on a curb forming a generally square, rectangular or round frame, attached to the roof of a room and which delimits an opening. Many curbs are made of metal, but the current trend is rather to manufacture them in molded plastic, for reasons among others, of weight, resistance to corrosion, but also for economic reasons. However, a plastic curb must imperatively be very resistant and its upper edge must be able to receive and support a dome with its opening system. The sides constituting the body of the curb which are vertical or inclined are advantageously formed of two plastic skins molded inside which is a filling material of the kind of a foam or other materials. The two skins meet at the upper border. This upper border can be extended by a wider, profiled rim, oriented towards the outside of the opening, a rim which will allow easier fixing of the hinges of the opening mechanisms. The stresses exerted on this profiled edge can be significant - in particular in case of wind - so it seemed necessary to make a one-piece curb including this profiled edge. So that this rim is continuous with the two skins, it is necessary, in order to produce the assembly, a mold in two parts, which very considerably complicates the production process, since an upper mold must be provided to form the profiled rim.

Pour s'affranchir de cet inconvénient tout en obtenant un produit analogue ayant un rebord profilé de grande résistance, la Demanderesse a imaginé et mis au point un procédé de réalisation qui consiste essentiellement à rapporter sur la bordure supérieure d'une costière moulée, un cadre préfabriqué en matière plastique, et cela dans des conditions particulières de fixation.To overcome this drawback while obtaining an analogous product having a profiled rim of high resistance, the Applicant has imagined and developed a production process which essentially consists in add a prefabricated plastic frame to the upper edge of a molded curb, under special fixing conditions.

L'invention a donc pour objet principal un procédé de fabrication d'une costière de coupole d'éclairage constituée d'un corps principal en matière plastique entourant une ouverture et à la partie supérieure d'un rebord profilé, procédé qui consiste à appliquer sur un unique moule profilé et sur toute sa hauteur une peau en matière plastique destinée à constituer la paroi intérieure du corps principal de la costière, à garnir cette peau d'un matériau de remplissage, à revêtir ledit matériau d'une autre peau en matière plastique destinée à constituer la paroi extérieure du corps principal de la costière, la partie supérieure de cette peau faisant retour en direction du moule pour former la bordure horizontale supérieure du corps principal, et à rapporter et fixer sur ladite bordure un cadre préfabriqué indépendamment constituant le rebord profilé.The main object of the invention is therefore a method of manufacturing a lighting dome curb consisting of a main plastic body surrounding an opening and at the top of a profiled rim, which method consists in applying to a single profiled mold and over its entire height a plastic skin intended to constitute the inner wall of the main body of the curb, to fill this skin with a filling material, to coat said material with another plastic skin intended to constitute the outer wall of the main body of the curb, the upper part of this skin returning towards the mold to form the upper horizontal edge of the main body, and to attach and fix on said edge an independently prefabricated frame constituting the rim streamlined.

Avantageusement, le cadre est collé sur la bordure horizontale du corps principal lors de la stratification de la peau extérieure constituant la paroi extérieure de la costière.Advantageously, the frame is glued to the horizontal border of the main body during the stratification of the outer skin constituting the outer wall of the curb.

Un autre objet de l'invention consiste en une costière comportant un corps principal en matière plastique et un rebord profilé orienté vers l'extérieur, dont le rebord profilé est constitué d'un cadre indépendant du corps principal de la costière rapporté sur une bordure horizontale supérieure dudit corps principal.Another object of the invention consists of a curb having a main body made of plastic and a profiled rim oriented towards the outside, the profiled rim of which consists of a frame independent of the main body of the curb added to a horizontal border upper of said main body.

D'autres caractéristiques et avantages de l'invention, apparaîtront à la lecture de la description qui va suivre d'une forme de réalisation faisant référence aux dessins annexés qui représentent :

  • figure 1 une vue générale écorchée, en perspective de la costière,
  • figure 2 une vue en coupe de la costière,
  • figure 3 une vue en coupe du moulage et de la réalisation de la costière.
Other characteristics and advantages of the invention will appear on reading the description which follows of an embodiment referring to the appended drawings which represent:
  • FIG. 1 a general cutaway view, in perspective of the curb,
  • FIG. 2 a sectional view of the curb,
  • Figure 3 a sectional view of the molding and the creation of the curb.

On voit à la figure 1 une costière moulée désignée dans son ensemblee par la référence 1, dont on peut distinguer le corps principal 2, de forme carrée, entourant une ouverture centrale 5. A sa base est prévu un talon 3 grâce auquel la costière est maintenue sur un toit. La bordure supérieure se prolonge par un rebord profilé 6 de plus faible épaisseur orienté vers l'extérieur de l'ouverture 5.We see in Figure 1 a molded curb designated as a whole by the reference 1, which we can distinguish the main body 2, square in shape, surrounding a central opening 5. At its base is provided a heel 3 thanks to which the curb is held on a roof. The upper edge is extended by a profiled rim 6 of smaller thickness oriented towards the outside of the opening 5.

La figure 2 montre plus en détail la structure de la costière obtenue.Figure 2 shows in more detail the structure of the curb obtained.

Le corps principal 2 est constitué d'une peau extérieure 8 et d'une peau intérieure 9 et entre les deux d'un matériau de remplissage 10 du genre d'une mousse ou autre matériau de remplissage. A la partie inférieure les deux peaux se rejoignent pour former le talon 3. A la partie supérieure, la peau extérieure 8 fait retour horizontalement vers la peau intérieure 9, cette portion périphérique constitue la bordure horizontale supérieure 11 du corps principal. Sur cette bordure 11 est rapporté un cadre 6 préfabriqué indépendamment qui constitue le bord profilé évoqué précédemment. Ledit cadre est maintenu fixé à la bordure par de la colle 12 ou un produit équivalent selon un procédé décrit ci-après. Le procédé de fabrication de la costière 1 permet de n'utiliser qu'un moule 13 comme on le voit à la figure 3 dans le cas des procédés au contact et en projection simultanée. Sur ce moule est appliquée la peau intérieure 9 de la costière qui s'étend depuis l'extrémité du méplat 3 jusqu'à l'extrémité supérieure de la partie 2. On rapporte ensuite sur cette peau intérieure le matériau de remplissage 10, par exemple formé de plaques de mousse de polyuréthane. Ensuite en partant du bas on applique la peau extérieure 8 qui se superpose à la première peau sur toute la longueur du méplat 3, puis elle couvre la mousse jusqu'en haut de la partie verticale, ainsi que sur la tranche supérieure horizontale de la mousse où cette peau 8 forme la bordure horizontale supérieure 11 du corps principal. Les deux peaux se superposent enfin dans une petite portion de hauteur verticale 14 contre l'extrémité supérieure du moule 13. La bordure supérieure 11 est enduite de colle puis on y applique le cadre 6 formant le rebord quand la peau 8 est encore fraîche de telle sorte qu'il y a pénétration de la matière du rebord dans la bordure du corps. Le cadre se colle donc lors de la stratification de la peau extérieure formant la partie extérieure du "sandwich" composite, et ,ne peut donc s'arracher du corps principal de la costière. Le cadre 6 se trouve donc en appui par sa tranche intérieure contre cette petite partie verticale 14 qui forme une structure supérieure de plus faible épaisseur du corps principal de la costière.The main body 2 consists of an outer skin 8 and an inner skin 9 and between the two of a filling material 10 of the kind of a foam or other filling material. At the lower part, the two skins meet to form the heel 3. At the upper part, the outer skin 8 returns horizontally to the inner skin 9, this peripheral portion constitutes the upper horizontal border 11 of the main body. On this border 11 is attached a frame 6 independently prefabricated which constitutes the profiled edge mentioned above. Said frame is held fixed to the border by glue 12 or an equivalent product according to a process described below. The method of manufacturing the curb 1 makes it possible to use only one mold 13 as seen in FIG. 3 in the case of the methods in contact and in simultaneous projection. The inner skin 9 of the curb, which extends from the end of the flat part 3 to the upper end of the part 2, is applied to this mold. The filling material 10 is then attached to this inner skin, for example formed of polyurethane foam sheets. Then starting from the bottom we apply the outer skin 8 which is superimposed on the first skin over the entire length of the flat 3, then it covers the foam up to the top of the vertical part, as well as on the upper horizontal edge of the foam where this skin 8 forms the upper horizontal border 11 of the main body. The two skins are finally superimposed in a small portion of vertical height 14 against the upper end of the mold 13. The upper edge 11 is coated with glue and then the frame 6 is applied there forming the rim when the skin 8 is still fresh so that there is penetration of the material of the rim into the border of the body. The frame therefore sticks during the stratification of the outer skin forming the outer part of the composite "sandwich", and therefore cannot be torn from the main body of the curb. The frame 6 is therefore supported by its inner edge against this small vertical part 14 which forms an upper structure of smaller thickness of the main body of the curb.

On notera que le corps de la costière 1 ainsi que la bordure supérieure 6 peuvent être réalisés avec d'autres procédés de transformation comme l'injection entre moule et contre moule. Les pièces ainsi réalisées seront collées par la suite.It will be noted that the body of the curb 1 as well as the upper edge 6 can be produced with other transformation methods such as injection between mold and against mold. The pieces thus produced will be glued later.

La fabrication d'une costière, par ce procédé, est donc plus simple et d'un prix de revient moins élevé.The manufacture of a curb, by this process, is therefore simpler and of a lower cost price.

Claims (5)

1.- Procédé de fabrication d'une costière de coupole d'éclairage constituée d'un corps principal en matière plastique entourant une ouverture et, à la partie supérieure, d'un rebord profilé, caractérisé en ce qu'il consiste à appliquer sur un unique moule profilé (13) et sur toute sa hauteur une peau (9) en matière plastique destinée à constituer la paroi intérieure du corps principal (2) de la costière (1), à garnir cette peau d'un matériau de remplissage (10), à revêtir ledit matériau d'une peau (8) en matière plastique destinée à constituer la paroi extérieure du corps principal de la costière, la partie supérieure de cette peau faisant retour en direction du moule pour former la bordure horizontale supérieure (11) du corps principal, et à rapporter et fixer sur ladite bordure un cadre (6), préfabriqué indépendamment, constituant le rebord profilé. 1.- Method of manufacturing a lighting dome curb consisting of a main plastic body surrounding an opening and, at the top, of a profiled rim, characterized in that it consists in applying to a single profiled mold (13) and over its entire height a skin (9) made of plastic material intended to constitute the inner wall of the main body (2) of the curb (1), to fill this skin with a filling material ( 10), to coat said material with a plastic skin (8) intended to constitute the outer wall of the main body of the curb, the upper part of this skin returning towards the mold to form the upper horizontal border (11 ) of the main body, and to attach and fix on said border a frame (6), independently prefabricated, constituting the profiled rim. 2.- Procédé selon la revendication 1, caractérisé en ce qu'on fixe le cadre (6) sur la bordure horizontale (11) du corps principal par collage. 2.- Method according to claim 1, characterized in that the frame (6) is fixed on the horizontal border (11) of the main body by gluing. 3.- Procédé selon la revendication 1, caractérisé en ce que le collage du cadre (6) est effectué lors de la stratification de la peau extérieure (8) constituant la paroi extérieure de la costière. 3.- Method according to claim 1, characterized in that the bonding of the frame (6) is carried out during the lamination of the outer skin (8) constituting the outer wall of the curb. 4.- Costière de coupole d'éclairage obtenue selon le procédé de fabrication des revendications 1 à 3, comportant un corps principal en matière plastique et un bord profilé orienté vers l'extérieur, caractérisé en ce que le rebord profilé est constitué d'un cadre (6) indépendant du corps principal de la costière rapporté sur une bordure horizontale supérieure (11) dudit corps principal. 4.- lighting dome curb obtained according to the manufacturing method of claims 1 to 3, comprising a main body of plastic and a profiled edge oriented towards the outside, characterized in that the profiled rim consists of a frame (6) independent of the main body of the curb added to an upper horizontal edge (11) of said main body. 5.- Costière selon la revendication 4 caractérisée en ce que le cadre est en appui par sa tranche intérieure contre une petite partie verticale (14) formant une structure supérieure de plus faible épaisseur du corps principal de la costière. 5. A curb according to claim 4 characterized in that the frame is supported by its inner edge against a small vertical part (14) forming an upper structure of smaller thickness of the main body of the curb.
EP92400888A 1991-04-16 1992-03-31 Process for manufacturing a frame for a lighting coupole for obtaining a frame equipped with a profiled border Withdrawn EP0509869A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104621 1991-04-16
FR9104621A FR2675424A1 (en) 1991-04-16 1991-04-16 METHOD FOR MANUFACTURING LUMINOUS COUPOLES FOR THE PRODUCTION OF COSTS EQUIPPED WITH A PROFILE REBORD

Publications (1)

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EP0509869A1 true EP0509869A1 (en) 1992-10-21

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EP92400888A Withdrawn EP0509869A1 (en) 1991-04-16 1992-03-31 Process for manufacturing a frame for a lighting coupole for obtaining a frame equipped with a profiled border

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FR (1) FR2675424A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913994A1 (en) * 2007-03-21 2008-09-26 Espace Lumiere Sarl Support frame for tube light, has peripheral fixation unit provided at peripheral of central part and adapted to guard, where central part with double walls, and space between two walls is partially filled with insulated material

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB877615A (en) * 1958-10-02 1961-09-20 Percy Henry Alcock Improvements in or relating to the production of laminated structures
GB930514A (en) * 1961-02-22 1963-07-03 Bakelite Ltd Improvements in or relating to core structures for reinforced plastic patterns
DE1929786A1 (en) * 1969-06-12 1970-12-17 Wassertechnik Gmbh & Co Kg Producing ornamental bowls, basins etc from - plastics material
DE2125265A1 (en) * 1971-05-21 1972-11-23 Fa. Winfried Staudenmayer, 7335 Salach Polyurethane foam light rose - for light cupolas illuminating large areas ie factory floors
DE2336747A1 (en) * 1973-07-19 1975-02-06 Erwin Thum Extruded light-metal roof-fitting toplight section - with clamping bar hinged to rim section head and peripherally sealed
GB2033290A (en) * 1978-11-10 1980-05-21 Wycombe Marsh Paper Mills Ltd Attaching reinforcement to substrates
DE3424015A1 (en) * 1984-01-19 1986-01-09 Heinz Essmann Gmbh & Co Kg, 4902 Bad Salzuflen Ventilation apparatus, preferably for a flat roof
DE3537402A1 (en) * 1984-10-22 1986-04-24 The Budd Co., Troy, Mich. Seamless housing made of one piece and process for the production thereof
DE8911653U1 (en) * 1989-09-29 1991-01-31 Eternit Ag, 1000 Berlin, De

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB877615A (en) * 1958-10-02 1961-09-20 Percy Henry Alcock Improvements in or relating to the production of laminated structures
GB930514A (en) * 1961-02-22 1963-07-03 Bakelite Ltd Improvements in or relating to core structures for reinforced plastic patterns
DE1929786A1 (en) * 1969-06-12 1970-12-17 Wassertechnik Gmbh & Co Kg Producing ornamental bowls, basins etc from - plastics material
DE2125265A1 (en) * 1971-05-21 1972-11-23 Fa. Winfried Staudenmayer, 7335 Salach Polyurethane foam light rose - for light cupolas illuminating large areas ie factory floors
DE2336747A1 (en) * 1973-07-19 1975-02-06 Erwin Thum Extruded light-metal roof-fitting toplight section - with clamping bar hinged to rim section head and peripherally sealed
GB2033290A (en) * 1978-11-10 1980-05-21 Wycombe Marsh Paper Mills Ltd Attaching reinforcement to substrates
DE3424015A1 (en) * 1984-01-19 1986-01-09 Heinz Essmann Gmbh & Co Kg, 4902 Bad Salzuflen Ventilation apparatus, preferably for a flat roof
DE3537402A1 (en) * 1984-10-22 1986-04-24 The Budd Co., Troy, Mich. Seamless housing made of one piece and process for the production thereof
DE8911653U1 (en) * 1989-09-29 1991-01-31 Eternit Ag, 1000 Berlin, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913994A1 (en) * 2007-03-21 2008-09-26 Espace Lumiere Sarl Support frame for tube light, has peripheral fixation unit provided at peripheral of central part and adapted to guard, where central part with double walls, and space between two walls is partially filled with insulated material
WO2008132367A2 (en) * 2007-03-21 2008-11-06 Espace Lumiere Support frame for light tube adaptable to an existing frame
WO2008132367A3 (en) * 2007-03-21 2009-01-29 Espace Lumiere Support frame for light tube adaptable to an existing frame

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Publication number Publication date
FR2675424A1 (en) 1992-10-23

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