EP0097101A1 - Lighting apparatus with means for removing static electricity from nonconducting walls - Google Patents

Lighting apparatus with means for removing static electricity from nonconducting walls Download PDF

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Publication number
EP0097101A1
EP0097101A1 EP83401209A EP83401209A EP0097101A1 EP 0097101 A1 EP0097101 A1 EP 0097101A1 EP 83401209 A EP83401209 A EP 83401209A EP 83401209 A EP83401209 A EP 83401209A EP 0097101 A1 EP0097101 A1 EP 0097101A1
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EP
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Prior art keywords
static electricity
conductive strips
transparent
wall
walls
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Granted
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EP83401209A
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German (de)
French (fr)
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EP0097101B1 (en
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Alain Chauchereau
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D'application Des Methodes Modernes D'eclairage Electrique S A M M O D E Ste
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D'application Des Methodes Modernes D'eclairage Electrique S A M M O D E Ste
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Priority to AT83401209T priority Critical patent/ATE49464T1/en
Publication of EP0097101A1 publication Critical patent/EP0097101A1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/02—Carrying-off electrostatic charges by means of earthing connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices

Definitions

  • the subject of the invention is a method and means the aim of which is to avoid the accumulation of static electricity on lighting devices; it also covers devices provided with such means.
  • lighting devices include a wall of transparent or translucent material which allows the passage of light flux; such a wall is produced by means of an insert which is made to the desired shape or profile from glass or a plastic material such as polycarbonate.
  • the main object of the invention is to provide a method and economical means capable of preventing the accumulation of static electricity on the surface of lighting fixtures, mainly on the surface of their transparent or translucent non-conductive walls. electricity.
  • this result is achieved by associating with these surfaces or with the material which constitutes them lines or strips conductive of electricity which are connected to a circuit for discharging static electricity.
  • all the lines or bands are connected together so as to form a network which concerns the entire surface or the wall in question.
  • the conductive lines or strips are obtained by depositing continuous lines of a conductive material, by applying a conductive wire or tape associated with an adhesive, by incorporation or hot inclusion in the material of a conductive wire.
  • longitudinal conductive lines can be made thereon on the surface or in the thickness during the extrusion operation.
  • the apparatus of Figures 1 and 2 is intended to contain two elongated fluorescent tubes. It comprises a wall 1 made of transparent material, for example polycarbonate, which is a cylindrical tube clamped between two end flanges 2, 3 made of rigid material, for example stainless steel.
  • the tube 1 made of transparent material has an outside diameter of approximately 130 mm; its length is fixed in correspondence with that of the fluorescent tubes which it must shelter, for example 0.60 m or 1.20 m or 1.50 m.
  • the device is sealed by elastomer seals 4, 5 which are contained in annular grooves in the flanges 2, 3.
  • the opposite ends of the polycarbonate tube 1 are compressed between the seals 4, 5 by means of an element.
  • central 6 which supports the electrical components and into which two opposite tightening screws 7, 8 are screwed.
  • the tube 1 made of transparent and insulating material is easily charged with static electricity, in spite of two metallic collars 9, 10 which surround it near its ends and which serve for its attachment to a wall or ceiling.
  • longitudinal polycarbonate wires 11 preferably made of copper, have been associated with the polycarbonate tube 1, by drowning them during extrusion just on its external surface. These wires are spaced on the circumference by a distance which does not exceed 60mm.
  • the wires 11 are joined together by means of a fixing collar 10 provided with a conductive braid 15 which is itself joined to the flange 3 by a welded bracket 14.
  • the longitudinal wires 11 can be connected to two wires circulars 12 and 13 connected to the ground circuit.
  • the lighting apparatus comprises two metal half-bodies 16, 17 assembled one below the other; the lower half-body .17 is provided at its lower part with a transparent polycarbonate wall 18 which generally has the appearance of a cup ending at its upper edge by a flange 19. The latter is tightened to using a metal ring 20 against the metal half-body 17 by means of a seal 21. With this conventional construction, the cup 18 easily accumulates static electricity.
  • conductive wires 22 are fixed to the outer surface of the cup 18 by adhesion, either by bringing a hot wire into contact with this cup, or by means of an adhesive substance.
  • Some wires 22A are arranged along parallels, other wires 22B are arranged along meridians. In all cases, the greatest distance between two neighboring wires does not exceed 60 mm at the point of their greatest spacing. Care is taken to ensure that the wires touch each other at all of their crossing points.
  • Several contact plates 23 are fixed by screws to the metal ring 20; each plate is folded so as to have a tongue 24 which is pressed against the wire 22A closest to the ring 20.
  • conductors not shown, connect the whole of the apparatus to earth.
  • the conducting wires constitute a network which is connected to earth with the rest of the lighting apparatus; this network presents meshes whose largest dimension does not exceed 60MM.

Abstract

1. Lighting apparatus comprising a nonconducting wall (1, 18) of nonconducting transparent or translucent material, on one internal and external face of the wall being associated conducting strips (11, 22, 22A, 22B) connected to a circuit for removing static electricity, characterised in that the said conducting metallic strips (11, 22, 22A, 22B) form a thin network spaced from the said internal or external face of the said wall (11, 18) by a distance the value of which does not deviate on the whole by more than 20 mm.

Description

L'invention a pour objet un procédé et des moyens dont le but est d'éviter l'accumulation de l'électricité statique sur les appareils d'éclairage; elle couvre aussi les appareils munis de tels moyens.The subject of the invention is a method and means the aim of which is to avoid the accumulation of static electricity on lighting devices; it also covers devices provided with such means.

On sait que les appareils d'éclairage comprennent une paroi en matière transparente ou translucide qui permet le passage du flux lumineux; une telle paroi est réalisée au moyen d'une pièce rapportée qui est confectionnée à la forme ou au profil voulu à partir de verre ou d'une matière plastique comme le polycarbonate.It is known that lighting devices include a wall of transparent or translucent material which allows the passage of light flux; such a wall is produced by means of an insert which is made to the desired shape or profile from glass or a plastic material such as polycarbonate.

Ces matériaux ont tous l'inconvénient, à un degré plus ou moins prononcé, de se charger d'électricité statique et de l'accumuler à leur surface. Cette charge électrique a deux conséquences gênantes : - elle attire la poussière et celle-ci diminue rapidement le rendement lumineux de l'appareil d'éclairage, - elle est susceptible de donner naissance à une étincelle de décharge qui est capable de provoquer l'inflammation et l'explosion d'un mélange explosif dans les atmosphères dangereuses où sont installés les appareils d'éclairage de sûreté.These materials all have the disadvantage, to a greater or lesser degree, of being charged with static electricity and accumulating on their surface. This electrical charge has two annoying consequences: - it attracts dust and this rapidly decreases the light output of the lighting device, - it is capable of giving rise to a discharge spark which is capable of causing ignition and the explosion of an explosive mixture in the hazardous atmospheres where the emergency lighting equipment is installed.

Le but principal de l'invention est d'apporter un procédé et des moyens économiques capables d'empêcher l'accumulation de l'électricité statique à la surface des appareils d'éclairage, principalement à la surface de leurs parois transparentes ou translucides non conductrices de l'électricité.The main object of the invention is to provide a method and economical means capable of preventing the accumulation of static electricity on the surface of lighting fixtures, mainly on the surface of their transparent or translucent non-conductive walls. electricity.

Selon l'invention, on atteint ce résultat en associant à ces surfaces ou à la matière qui les constitue des lignes ou des bandes conductrices de l'électricité que l'on raccorde à un circuit d'évacuation de l'électricité statique.According to the invention, this result is achieved by associating with these surfaces or with the material which constitutes them lines or strips conductive of electricity which are connected to a circuit for discharging static electricity.

De préférence, on relie entre elles toutes les lignes ou bandes de façon à constituer un réseau qui intéresse l'ensemble de la surface ou de la paroi en question.Preferably, all the lines or bands are connected together so as to form a network which concerns the entire surface or the wall in question.

On réalise ces lignes ou bandes par différents moyens équivalents qui consistent à les disposer à la surface extérieure ou à la surface intérieure, ou à les noyer dans l'épaisseur entre les deux surfaces de la matière transparente ou translucide ; on peut aussi employer simultanément deux de ces modes de réalisation ou les trois ensemble.These lines or strips are produced by different equivalent means which consist in placing them on the outer surface or on the inner surface, or in embedding them in the thickness between the two surfaces of the transparent or translucent material; one can also use two of these embodiments simultaneously or all three together.

Les lignes ou bandes conductrices s'obtiennent par dépôt de lignes continues d'une matière conductrice, par application d'un fil ou ruban conducteur associé à un adhésif, par incorporation ou inclusion à chaud dans la matière d'un fil conducteur.The conductive lines or strips are obtained by depositing continuous lines of a conductive material, by applying a conductive wire or tape associated with an adhesive, by incorporation or hot inclusion in the material of a conductive wire.

Quand la paroi transparente est allongée, de type tubulaire obtenu par extrusion, des lignes conductrices longitudinales peuvent y être réalisées en surface ou dans l'épaisseur pendant l'opération d'extrusion.When the transparent wall is elongated, of tubular type obtained by extrusion, longitudinal conductive lines can be made thereon on the surface or in the thickness during the extrusion operation.

Il est apparu aussi, d'une façon surprenante, que l'électricité statique des appareils d'éclairage peut être éliminée sans que les lignes ou bandes conductrices soient en contact avec les parois. Des lignes ou bandes espacées d'une distance ne dépassant pas 20 mm de la surface intérieure ou de la surface extérieure des parois sont efficaces pour l'écoulement de l'électricité statique.It has also appeared, surprisingly, that static electricity from lighting fixtures can be eliminated without the conductive lines or strips being in contact with the walls. Lines or bands spaced not more than 20 mm from the interior surface or the exterior surface of the walls are effective for the flow of static electricity.

On donnera maintenant, sans intention limitative, une description de deux appareils d'éclairage conformes à l'invention. On se reportera aux dessins annexés dans lesquels :

  • - la figure 1 est une vue en coupe par un plan longitudinal d'un appareil d'éclairage allongé de type tubulaire,
  • - la figure 2 est une vue en coupe transversale selon II-II de la figure 1,
  • - la figure 3 est une vue en coupe par un plan passant par l'axe d'un appareil d'éclairage à paroi transparente en coupelle,
  • - la figure 4 est une vue de dessous de la moitié de la coupelle seule de l'appareil de la figure 3.
We will now give, without limiting intention, a description of two lighting devices according to the invention. Reference is made to the appended drawings in which:
  • FIG. 1 is a sectional view through a longitudinal plane of an elongated tubular type lighting device,
  • FIG. 2 is a cross-sectional view along II-II of FIG. 1,
  • FIG. 3 is a sectional view through a plane passing through the axis of a lighting device with a transparent wall in a cup,
  • - Figure 4 is a bottom view of half of the single cup of the apparatus of Figure 3.

On ne décrira pas en détail les appareils d'éclairage représentés qui sont de construction classique. On se limitera aux éléments qui sont directement en rapport avec l'invention et à ceux qui constituent l'invention.The illustrated lighting fixtures which are of conventional construction will not be described in detail. We will limit ourselves to the elements which are directly related to the invention and to those which constitute the invention.

L'appareil des figures 1 et 2 est destiné à contenir deux tubes fluorescents allongés. Il comprend une paroi 1 en matière transparente, par exemple en polycarbonate, qui est un tube cylindrique serré entre deux flasques extrêmes 2, 3 en matière rigide, par exemple en acier inoxydable. Le tube 1 en matière transparente a un diamètre extérieur de 130 mm environ; sa longueur est fixée en correspondance avec celle des tubes fluorescents qu'il doit abriter, par exemple 0,60 m ou 1,20 m ou 1,50 m.The apparatus of Figures 1 and 2 is intended to contain two elongated fluorescent tubes. It comprises a wall 1 made of transparent material, for example polycarbonate, which is a cylindrical tube clamped between two end flanges 2, 3 made of rigid material, for example stainless steel. The tube 1 made of transparent material has an outside diameter of approximately 130 mm; its length is fixed in correspondence with that of the fluorescent tubes which it must shelter, for example 0.60 m or 1.20 m or 1.50 m.

L'étanchéité de l'appareil est assurée par des joints 4, 5 en élastomère qui sont contenus dans des gorges annulaires des flasques 2, 3. Les extrémités opposées du tube 1 en polycarbonate sont comprimées entre les joints 4, 5 grâce à un élément central 6 qui supporte les composants électriques et dans lequel se vissent deux vis opposées de serrage 7, 8.The device is sealed by elastomer seals 4, 5 which are contained in annular grooves in the flanges 2, 3. The opposite ends of the polycarbonate tube 1 are compressed between the seals 4, 5 by means of an element. central 6 which supports the electrical components and into which two opposite tightening screws 7, 8 are screwed.

Dans un appareil ainsi constitué de façon classique, le tube 1 en matière transparente et isolante se charge facilement d'électricité statique, en dépit de deux colliers métalliques 9, 10 qui l'entourent près de ses extrémités et qui servent à sa fixation à un mur ou à un plafond.In an apparatus thus constituted in a conventional manner, the tube 1 made of transparent and insulating material is easily charged with static electricity, in spite of two metallic collars 9, 10 which surround it near its ends and which serve for its attachment to a wall or ceiling.

Selon l'invention, pour empêcher l'accumulation de l'électricité statique, on a associé au tube 1 en polycarbonate, en les noyant pendant l'extrusion juste à sa surface extérieure, des fils conducteurs longitudinaux 11, en cuivre de préférence. Ces fils sont espacés sur la circonférence d'une distance qui ne dépasse pas 60mm. Les fils 11 sont réunis entre eux par l'intermédiaire d'un collier de fixation 10 muni d'une tresse conductrice 15 qui est elle-même réunie au flasque 3 par une équerre soudée 14. On peut raccorder les fils longitudinaux 11 à deux fils circulaires 12 et 13 reliés au circuit de masse.According to the invention, in order to prevent the accumulation of static electricity, longitudinal polycarbonate wires 11, preferably made of copper, have been associated with the polycarbonate tube 1, by drowning them during extrusion just on its external surface. These wires are spaced on the circumference by a distance which does not exceed 60mm. The wires 11 are joined together by means of a fixing collar 10 provided with a conductive braid 15 which is itself joined to the flange 3 by a welded bracket 14. The longitudinal wires 11 can be connected to two wires circulars 12 and 13 connected to the ground circuit.

Dans l'exemple des figures 3. et 4, l'appareil d'éclairage comprend deux demi-corps métalliques 16, 17 Assemblés l'un en dessous de l'autre; le demi-corps inférieur .17 est pourvu à sa partie inférieure d'une paroi transparente 18 en polycarbonate qui a dans l'ensemble l'apparence d'une coupelle se terminant à son bord supérieur par une collerette 19. Cette dernière est serrée à l'aide d'un anneau métallique 20 contre le demi-corps métallique 17 par l'intermédiaire d'un joint d'étanchéité 21. Avec cette construction classique, la coupelle 18 accumule facilement l'électricité statique.In the example of Figures 3. and 4, the lighting apparatus comprises two metal half-bodies 16, 17 assembled one below the other; the lower half-body .17 is provided at its lower part with a transparent polycarbonate wall 18 which generally has the appearance of a cup ending at its upper edge by a flange 19. The latter is tightened to using a metal ring 20 against the metal half-body 17 by means of a seal 21. With this conventional construction, the cup 18 easily accumulates static electricity.

Selon l'invention des fils conducteurs 22 sont fixés à la surface extérieure de la coupelle 18 par adhérence, soit par mise en contact d'un fil chaud avec cette coupelle, soit à l'aide d'une substance adhésive. Certains fils 22A sont disposés selon des parallèles, d'autres fils 22B sont disposés selon des méridiens. Dans tous les cas, le plus grande distance entre deux fils voisins ne dépasse pas 60 mm à l'endroit de leur plus grand espacement. On veille à ce queles fils se touchent à tous leurs points de croisement. Plusieurs plaquettes de contact 23 sont fixées par des vis à l'anneau métallique 20 ; chaque plaquette est pliée pour avoir une languette 24 qui est appuyée contre le fil 22A le plus proche de l'anneau 20. Par ailleurs, des conducteurs, non représentés, relient à la masse l'ensemble de l'appareil.According to the invention, conductive wires 22 are fixed to the outer surface of the cup 18 by adhesion, either by bringing a hot wire into contact with this cup, or by means of an adhesive substance. Some wires 22A are arranged along parallels, other wires 22B are arranged along meridians. In all cases, the greatest distance between two neighboring wires does not exceed 60 mm at the point of their greatest spacing. Care is taken to ensure that the wires touch each other at all of their crossing points. Several contact plates 23 are fixed by screws to the metal ring 20; each plate is folded so as to have a tongue 24 which is pressed against the wire 22A closest to the ring 20. Furthermore, conductors, not shown, connect the whole of the apparatus to earth.

Dans les deux exemples décrits ci-dessus les fils conducteurs constituent un réseau qui est raccordé à la masse avec le reste de l'appareil d'éclairage ; ce réseau présente des mailles dont la dimension la plus grande ne dépasse pas 60MM.In the two examples described above, the conducting wires constitute a network which is connected to earth with the rest of the lighting apparatus; this network presents meshes whose largest dimension does not exceed 60MM.

Quand il s'agit de lignes ou bandes conductrices éloignées de la surface extérieure ou de la surface intérieure, il n'est pas nécessaire de prendre des précautions spéciales. Il n'est pas obligatoire que la distance entre la surface et les lignes conductrices soit parfaitement constante; il suffit de veiller à ne pas laisser se produire un espacement supérieur à 20 mm. Ces lignes conductrices sont naturellement reliées à la masse comme expliqué plus haut à propos des fils en contact avec les parois.When it comes to conductive lines or strips away from the outer surface or the inner surface, it is not necessary to take special precautions. The distance between the surface and the conductive lines need not be perfectly constant; just be careful not to allow more than 20mm spacing to occur. These conductive lines are naturally connected to ground as explained above with regard to the wires in contact with the walls.

Claims (10)

1. Procédé pour éliminer l'électricité statique s'accumulant sur les parois en matière transparente ou translucide des appareils d'éclairage, à l'aide de bandes conductrices espacées raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que l'on réalise ces bandes conductrices directement sur l'une au moins des faces intérieure ou extérieure des parois en question.1. Method for eliminating static electricity accumulating on the walls of transparent or translucent material of lighting devices, using spaced apart conductive strips connected to a circuit for discharging static electricity, characterized in that that these conductive strips are produced directly on at least one of the internal or external faces of the walls in question. 2. Procédé pour éliminer l'électricité statique s'accumulant sur les parois en matière transparente ou translucide des appareils d'éclairage, à l'aide de bandes conductrices espacées raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que l'on réalise ces bandes conductrices en les noyant dans l'épaisseur des parois en question.2. Method for eliminating static electricity accumulating on the walls of transparent or translucent material of lighting devices, using spaced apart conductive strips connected to a circuit for discharging static electricity, characterized in that that these conductive strips are produced by embedding them in the thickness of the walls in question. 3. Procédé pour éliminer l'électricité statique s'accumulant sur les parois en matière transparente ou translucide des appareils d'éclairage, à l'aide de bandes conductrices espacées raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que l'on réalise ces bandes conductrices en les tenant espacées de l'une au moins des faces intérieure et extérieure d'une distance ne dépassant pas 20 mm.3. Method for eliminating static electricity accumulating on the walls of transparent or translucent material of lighting devices, using spaced apart conductive strips connected to a circuit for discharging static electricity, characterized in that that these conductive strips are produced by keeping them spaced from at least one of the inner and outer faces by a distance not exceeding 20 mm. 4. Procédé selon l'une quelconque des revendications 1 à 3 caractérisé en ce qu'on emploie des fils métalliques conducteurs pour constituer les bandes conductrices.4. Method according to any one of claims 1 to 3 characterized in that employs conductive metal son to form the conductive strips. 5. Procédé selon la revendication 1 caractérisé en ce qu'on réalise les bandes conductrices à l'aide de fils métalliques conducteurs fixés directement à la surface par adhérence à chaud ou à l'aide d'un adhésif.5. Method according to claim 1 characterized in that the conductive strips are produced using conductive metal wires fixed directly to the surface by hot adhesion or using an adhesive. 6. Procédé selon l'une quelconque des revendications 1 à 3 caractérisé en ce que la distance entre deux bandes voisines quelconques a une valeur pouvant atteindre 60 mm.6. Method according to any one of claims 1 to 3 characterized in that the distance between any two adjacent strips has a value of up to 60 mm. 7. Appareil d'éclairage comprenant une paroi en matière transparente ou translucide à l'une des faces intérieure et extérieure de laquelle sont associées des bandes conductrices raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que des fils métalliques conducteurs (22) sont fixés directement à cette face par adhérence sous l'effet de la chaleur ou d'un adhésif.7. Lighting apparatus comprising a wall of transparent or translucent material at one of the interior and exterior faces of which are associated conductive strips connected to a circuit for discharging static electricity, characterized in that conductive metallic wires (22) are fixed directly to this face by adhesion under the effect of heat or an adhesive. 8. Appareil d'éclairage comprenant une paroi en matière transparente ou translucide à l'une des faces intérieure et extérieure de laquelle sont associées des bandes conductrices raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que des fils métalliques conducteurs (11) sont noyés dans l'épaisseur de ladite paroi.8. Lighting apparatus comprising a wall of transparent or translucent material on one of the inner and outer faces of which are associated conductive strips connected to a circuit for discharging static electricity, characterized in that metallic wires conductors (11) are embedded in the thickness of said wall. 9. Appareil d'éclairage comprenant une paroi en matière transparente ou translucide à l'une des faces intérieure et extérieure de laquelle sont associées des bandes conductrices raccordées à un circuit d'évacuation de l'électricité statique, caractérisé en ce que des fils métalliques conducteurs constituent un réseau tenu éloigné de l'une quelconque des faces intérieure et extérieure de ladite paroi d'une distance ne dépassant pas 20 mm.9. Lighting apparatus comprising a wall of transparent or translucent material on one of the inner and outer faces of which are associated conductive strips connected to a circuit for discharging static electricity, characterized in that metallic wires conductors constitute a network kept away from any of the inner and outer faces of said wall by a distance not exceeding 20 mm. 10. Appareil d'éclairage selon l'une quelconque des revendications 7 à 9 caractérisé en ce que la distance entre deux fils métalliques voisins quelconques a une valeur pouvant atteindre 60 mm.10. Lighting apparatus according to any one of claims 7 to 9 characterized in that the distance between any two neighboring metal wires has a value of up to 60 mm.
EP83401209A 1982-06-15 1983-06-13 Lighting apparatus with means for removing static electricity from nonconducting walls Expired - Lifetime EP0097101B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401209T ATE49464T1 (en) 1982-06-15 1983-06-13 LAMP WITH DEVICE FOR DISCHARGE STATIC ELECTRICITY FROM NON-CONDUCTING PARTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8210401 1982-06-15
FR8210401A FR2528539B1 (en) 1982-06-15 1982-06-15 METHOD AND MEANS FOR ELIMINATING STATIC ELECTRICITY FROM LIGHTING APPARATUSES AND APPARATUSES PROVIDED WITH SUCH MEANS

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Publication Number Publication Date
EP0097101A1 true EP0097101A1 (en) 1983-12-28
EP0097101B1 EP0097101B1 (en) 1990-01-10

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EP83401209A Expired - Lifetime EP0097101B1 (en) 1982-06-15 1983-06-13 Lighting apparatus with means for removing static electricity from nonconducting walls

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EP (1) EP0097101B1 (en)
AT (1) ATE49464T1 (en)
AU (1) AU541483B2 (en)
DE (1) DE3381092D1 (en)
FR (1) FR2528539B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159527A1 (en) * 1984-04-03 1985-10-30 CEAG Licht- und Stromversorgungstechnik GmbH Light fixture
EP0249471A2 (en) * 1986-06-13 1987-12-16 Health And Fitness Products Limited Rebounder antistatic provisions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412629A1 (en) * 1984-04-04 1985-10-17 CEAG Licht- und Stromversorgungstechnik GmbH, 6800 Mannheim Insulating material housing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556378A (en) * 1967-12-29 1969-02-07
FR2356510A1 (en) * 1976-06-28 1978-01-27 Ppg Industries Inc LIGHT ICE EQUIPPED WITH A HEATING CIRCUIT AND AN ANTISTATIC CIRCUIT AND PROCESS FOR ITS MANUFACTURING
DE2942995A1 (en) * 1979-10-24 1981-05-07 Bayer Ag, 5090 Leverkusen Explosion-proof transparent light cover - has plastics strips combined with earthed wires connected to conductor along edges

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556378A (en) * 1967-12-29 1969-02-07
FR2356510A1 (en) * 1976-06-28 1978-01-27 Ppg Industries Inc LIGHT ICE EQUIPPED WITH A HEATING CIRCUIT AND AN ANTISTATIC CIRCUIT AND PROCESS FOR ITS MANUFACTURING
DE2942995A1 (en) * 1979-10-24 1981-05-07 Bayer Ag, 5090 Leverkusen Explosion-proof transparent light cover - has plastics strips combined with earthed wires connected to conductor along edges

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159527A1 (en) * 1984-04-03 1985-10-30 CEAG Licht- und Stromversorgungstechnik GmbH Light fixture
EP0249471A2 (en) * 1986-06-13 1987-12-16 Health And Fitness Products Limited Rebounder antistatic provisions
EP0249471A3 (en) * 1986-06-13 1988-08-03 Health And Fitness Products Limited Rebounder antistatic provisions

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AU541483B2 (en) 1985-01-10
FR2528539B1 (en) 1987-12-18
AU1579983A (en) 1984-01-05
FR2528539A1 (en) 1983-12-16
EP0097101B1 (en) 1990-01-10
DE3381092D1 (en) 1990-02-15
ATE49464T1 (en) 1990-01-15

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