EP0267135A1 - Technical flooring-tile composed of open-ended tubes held between spacing bars - Google Patents

Technical flooring-tile composed of open-ended tubes held between spacing bars Download PDF

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Publication number
EP0267135A1
EP0267135A1 EP87480018A EP87480018A EP0267135A1 EP 0267135 A1 EP0267135 A1 EP 0267135A1 EP 87480018 A EP87480018 A EP 87480018A EP 87480018 A EP87480018 A EP 87480018A EP 0267135 A1 EP0267135 A1 EP 0267135A1
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EP
European Patent Office
Prior art keywords
tubes
slab according
slab
register
fitting
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Granted
Application number
EP87480018A
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German (de)
French (fr)
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EP0267135B1 (en
Inventor
Constantin Koutzaroff
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Individual
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Individual
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    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02405—Floor panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02447—Supporting structures
    • E04F15/02452—Details of junctions between the supporting structures and the panels or a panel-supporting framework

Definitions

  • the subject of the invention is slabs or panels for raised floors, in particular for clean rooms.
  • perforated tiles are used associated with solid tiles, to allow the evacuation of air by the double floor or technical floor.
  • These air conditioning panels can be fitted with pressure grids or a flow control system.
  • These perforated tiles can be formed from an internal structure, an external structure; on the lower face, a damper is installed which regulates the ventilation; on the upper face, a covering; at the edge, a polyvinyl chloride (PVC) gasket possibly seals.
  • PVC polyvinyl chloride
  • the slab can also consist of a steel tube frame, welded at the corners, on which is also spot welded, a steel sheet perforated with holes. Inside the frame, parallel to two of its sides, crosspieces with rectangular or L-shaped cross-sections are welded at the ends on the other two sides and on the perforated sheet.
  • the slab according to the invention is formed by stainless steel or carbon fiber tubes, open at the ends, held together at said ends, by spacing bars which act as crosspieces. These tubes are simply fitted onto the fitting pins.
  • the slab is made without welding or gluing.
  • Said spacing bars comprise means acting as fitting studs for the tubes.
  • the fitting studs have a guide chamfer to facilitate fitting of the tubes.
  • the spacer bars are provided at their ends and on their edge, of assembly means between the panels or the slabs so as to form an assembly spider.
  • the ends of the spacer bars are provided with means which act as wedges for positioning the slabs together.
  • the tubes are made of stainless steel.
  • the tubes are made of carbon fiber.
  • the spacer bars are made of plastic.
  • the spacing bars can comprise, at their internal face and below the pins for fitting the tubes, a sliding rail acting as a support strip for the register which can, if necessary, be placed in the slabs. .
  • the underside of the spacer bar may include attachment means or means making this surface non-slip.
  • the stainless steel tiles do not deteriorate over time, attacks by chemicals, ect.
  • the installation and disassembly are very fast, the tiles are assembled together by simply pressing the ends of the bars together.
  • the tubes can be quickly removed from the spacer bars on which they are simply fitted.
  • the bars and / or the lengths of tubes can be cut to form a half-slab, a quarter of a slab or any other dimension or to form a specific cut.
  • the tubes can be of square or round section.
  • the slab 1 for raised floors, in particular for clean rooms, according to the invention, is formed by tubes 2 open at their ends 3. These tubes 2 are preferably made of stainless steel. These tubes 2 are held together by their ends 3 which are fitted on fitting pins 4 arranged along spacing bars 5 which also act as crosspieces.
  • the spacer bars 5 are made of plastic.
  • the fitting studs 4 may include a guide chamfer 6 which facilitates fitting of the tubes 2 by their open ends 3.
  • the spacer bars 5 are provided with assembly means 7 at their ends and on their edge. These assembly means 7 make it possible to assemble the slabs or panels together by forming an assembly spider 8. Said slabs or panels 1 are assembled together so that the tubes 2 are oriented perpendicular to those of the other contiguous panels.
  • the assembly means 7 are positioning corners.
  • the spacing bars 5 may comprise, on their internal face 8, below the fitting studs 4, a guide rail 9 which acts as a support strip for the register 10 which can optionally be placed in the slabs or panels 1.
  • the guide rail 9 can be attached to the strip 5 or formed in the profile of the strip.
  • the lower face 11 of the spacer bar 5 may comprise attachment means, or a non-slip surface 12.
  • the damper 10 is a plate with the same longitudinal openings which correspond to the spacings between the tubes 2 of the slab 1. The movement of the damper 10 relative to the slab 1 regulates the air flow of the ventilation.
  • At least one or more openings 15 act as a guide ramp 16 by an inclined plane which, by introducing a lever or an axis such as the longitudinal tip of a tool (screwdriver) and by moving it through the openings of the tubes 2 of the slab 1 and on said ramp 16, causes the horizontal movement of said register 10, which allows the opening or closing to adjust the air flow.
  • a lever or an axis such as the longitudinal tip of a tool (screwdriver) and by moving it through the openings of the tubes 2 of the slab 1 and on said ramp 16 causes the horizontal movement of said register 10, which allows the opening or closing to adjust the air flow.

Abstract

KOUTZAROFF Constantin L'invention a pour objet des dalles pour plancher technique. Le dispositif est formé par des tubes (2) ouverts à leurs extrémités (3) et maintenus entre-eux par leurs extrémités (3) par des moyens faisant office de traverse et de barrettes d'écartement (5) pour lesdits tubes (2) ; les tubes (2) sont maintenus entre-eux par leurs extrémités (3) qui sont emmanchées sur des plots d'emmanchement (4) disposés le long des barrettes d'écartement (5). L'invention s'applique aux planchers techniques notamment pour salles blanches.KOUTZAROFF Constantin The invention relates to slabs for raised floors. The device is formed by tubes (2) open at their ends (3) and held together by their ends (3) by means acting as a cross member and spacers (5) for said tubes (2) ; the tubes (2) are held together by their ends (3) which are fitted on fitting pins (4) arranged along the spacing bars (5). The invention applies to technical floors, in particular for clean rooms.

Description

L'invention a pour objet des dalles ou panneaux pour plancher technique notamment pour salles blanches.The subject of the invention is slabs or panels for raised floors, in particular for clean rooms.

Actuellement, il existe de nombreux moyens pour fabriquer des planchers techniques. Généralement, on utilise des dalles perforées associées à des dalles pleines, pour permettre l'évacuation de l'air par le double plancher ou plancher technique. Ces dalles de climatisation peuvent être équipées de grilles de pression ou d'un système de réglage du débit. Ces dalles perforées peuvent être formées d'une structure interne, d'une structure externe ; sur la face inférieure est mis en place un registre qui assure le réglage de la ventilation, sur la face supérieure, un revêtement ; au niveau de la rive un joint en chlorure de polyvinyle (PVC) assure éventuellement l'étanchéité.Currently, there are many ways to make raised floors. Generally, perforated tiles are used associated with solid tiles, to allow the evacuation of air by the double floor or technical floor. These air conditioning panels can be fitted with pressure grids or a flow control system. These perforated tiles can be formed from an internal structure, an external structure; on the lower face, a damper is installed which regulates the ventilation; on the upper face, a covering; at the edge, a polyvinyl chloride (PVC) gasket possibly seals.

La dalle peut également être constituée d'un cadre en tube d'acier, soudé aux angles, sur lequel est également soudée, par point, une tôle d'acier perforée de trous. A l'intérieur du cadre, parallèlement à deux de ses côtés, des traverses à section rectangulaire ou en L sont soudées aux extrémités sur les deux autres côtés et sur la tôle perforée.The slab can also consist of a steel tube frame, welded at the corners, on which is also spot welded, a steel sheet perforated with holes. Inside the frame, parallel to two of its sides, crosspieces with rectangular or L-shaped cross-sections are welded at the ends on the other two sides and on the perforated sheet.

Ces planchers techniques à dalles amovibles, reposant sur des vérins réglables, avec ou sans entretoises intermédiaires présentent de nombreux inconvénients.These technical floors with removable slabs, based on adjustable jacks, with or without intermediate spacers have many disadvantages.

Ces dalles sont actuellement toutes en ferraille soudée, peintes en galvanisées, elles ne peuvent avoir qu'une dimension, on ne peut pas, à la demande, couper und demi-dalle ou un quart de dalle. Le revêtement entraîne des salissures, les structures en fer entraînent la rouille, ect. Ces dalles perforées peuvent avoir actuellement une surface utile de 25 %.These slabs are currently all made of welded scrap metal, painted galvanized, they can only have one dimension, you cannot, on request, cut und a half slab or a quarter slab. The coating causes dirt, the iron structures cause rust, ect. These perforated tiles can currently have a useful surface of 25%.

La dalle, selon l'invention, est formée par des tubes en inox, ou fibre de carbone, ouverts aux extrémités, maintenus entre-eux auxdites extrémités, par des barrettes d'écartement qui font office de traverses. Ces tubes sont simplement emmanchés sur les plots d'emmanchement. La dalle est réalisée sans soudure ou collage.The slab according to the invention is formed by stainless steel or carbon fiber tubes, open at the ends, held together at said ends, by spacing bars which act as crosspieces. These tubes are simply fitted onto the fitting pins. The slab is made without welding or gluing.

Lesdites barrettes d'écartement comportent des moyens faisant office de plots d'emmanchement pour les tubes.Said spacing bars comprise means acting as fitting studs for the tubes.

Les plots d'emmanchement comportent un chanfrein de guidage pour faciliter l'emmanchement des tubes.The fitting studs have a guide chamfer to facilitate fitting of the tubes.

Les barrettes d'écartement sont pourvues à leurs extrémités et sur leur chant, de moyens d'assemblage entre les panneaux ou les dalles de manière à former un croisillon d'assemblage. Les extrémités des barrettes d'écartement sont pourvues de moyens faisant office de coins de positionnement des dalles entre-elles.The spacer bars are provided at their ends and on their edge, of assembly means between the panels or the slabs so as to form an assembly spider. The ends of the spacer bars are provided with means which act as wedges for positioning the slabs together.

Selon un mode de réalisation préféré, les tubes sont en inox.According to a preferred embodiment, the tubes are made of stainless steel.

Selon un autre mode de réalisation préféré, les tubes sont en fibre de carbone.According to another preferred embodiment, the tubes are made of carbon fiber.

Selon un mode de réalisation préféré, les barrettes d'écartement sont en plastique.According to a preferred embodiment, the spacer bars are made of plastic.

Les barrettes d'écartement peuvent comporter, au niveau de leur face interne et en-dessous des plots d'emmanchement des tubes, un rail de glissement faisant office de réglette support pour le registre qui peut, éventuellement, être mis en place dans les dalles.The spacing bars can comprise, at their internal face and below the pins for fitting the tubes, a sliding rail acting as a support strip for the register which can, if necessary, be placed in the slabs. .

La face inférieure de la barrette d'écartement peut comporter des moyens d'accrochage ou des moyens rendant cette surface anti-dérapante.,The underside of the spacer bar may include attachment means or means making this surface non-slip.,

On comprend donc aisément l'intérêt de l'invention.It is therefore easy to understand the advantage of the invention.

Les dalles en inox ne se détériorent pas avec le temps, les attaques des produits chimique, ect. La mise en place et le démontage sont très rapides, les dalles sont assemblées entre-elles par simple enfoncement des extrémités des barrettes entre-elles. Les tubes peuvent être rapidement retirés des barrettes d'écartement sur lesquels ils sont simplement emmanchés.The stainless steel tiles do not deteriorate over time, attacks by chemicals, ect. The installation and disassembly are very fast, the tiles are assembled together by simply pressing the ends of the bars together. The tubes can be quickly removed from the spacer bars on which they are simply fitted.

A la demande, on peut couper les barrettes et/ou les longueurs de tubes pour f ormer une demi-dalle, un quart de dalle ou toute autre dimension ou pour former une coupe spécifique.On request, the bars and / or the lengths of tubes can be cut to form a half-slab, a quarter of a slab or any other dimension or to form a specific cut.

Les tubes peuvent être de section carré ou ronde.The tubes can be of square or round section.

Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention.

  • La figure 1 est une vue en perspective avec une coupe partielle d'une salle blanche, mettant en évidence le plancher technique ou double plancher.
  • La figure 2 est une vue en perspective d'une partie d'une dalle, mettant en évidence l'assemblage des tubes et du registre sur une barrette d'écartement.
  • La figure 3 est une vue en perspective d'une barrette d'écartement.
  • La figure 4 est une vue en plan, mettant en évidence l'assemblage des dalles ou panneaux, entre-elles par l'extrémité de leurs barrettes d'écartement.
  • La figure 5 est une vue en coupe transversale au niveau de la barrette d'écartement, passant par un tube et par une lame du registre.
  • La figure 6 est une vue en plan du registre.
  • La figure 7 est une vue en plan du registre mettant en évidence la réalisation d'une rampe de manoeuvre établie entre les ouvertures longitudinales dudit registre.
  • La figure 8 est une vue du registre selon la figure 7 où la rampe de manoeuvre est créée entre deux ouvertures longitudinales contigües.
The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.
  • Figure 1 is a perspective view with a partial section of a clean room, highlighting the technical floor or double floor.
  • Figure 2 is a perspective view of part of a slab, showing the assembly of the tubes and the register on a spacer bar.
  • Figure 3 is a perspective view of a spacer bar.
  • Figure 4 is a plan view, showing the assembly of the slabs or panels, between them by the end of their spacer bars.
  • Figure 5 is a cross-sectional view at the spacer bar, passing through a tube and through a damper blade.
  • Figure 6 is a plan view of the register.
  • Figure 7 is a plan view of the register showing the embodiment of an operating ramp established between the longitudinal openings of said register.
  • Figure 8 is a view of the register according to Figure 7 where the operating ramp is created between two contiguous longitudinal openings.

La dalle 1 pour plancher technique, notamment pour salles blanches, selon l'invention, est formée par des tubes 2 ouverts à leurs extrémités 3. Ces tubes 2 sont de préférence en inox. Ces tubes 2 sont maintenus entre-eux par leurs extrémités 3 qui sont emmanchés sur des plots d'emmanchement 4 disposés le long de barrettes d'écartement 5 qui font également office de traverses. Les barrettes d'écartement 5 sont en plastique.The slab 1 for raised floors, in particular for clean rooms, according to the invention, is formed by tubes 2 open at their ends 3. These tubes 2 are preferably made of stainless steel. These tubes 2 are held together by their ends 3 which are fitted on fitting pins 4 arranged along spacing bars 5 which also act as crosspieces. The spacer bars 5 are made of plastic.

Les plots d'emmanchement 4 peuvent comporter un chanfrein de guidage 6 qui facilite l'emmanchement des tubes 2 par leurs extrémités ouvertes 3.The fitting studs 4 may include a guide chamfer 6 which facilitates fitting of the tubes 2 by their open ends 3.

Les barrettes d'écartement 5 sont pourvues de moyens d'assemblage 7 à leurs extrémités et sur leur chant. Ces moyens d'assemblage 7 permettent d'assembler entre-elles les dalles ou panneaux en formant un croisillon d'assemblage 8. Lesdites dalles ou panneaux 1 sont assemblées entre-elles de manière à ce que les tubes 2 soient orientés perpendiculairement à ceux des autres panneaux contigus.The spacer bars 5 are provided with assembly means 7 at their ends and on their edge. These assembly means 7 make it possible to assemble the slabs or panels together by forming an assembly spider 8. Said slabs or panels 1 are assembled together so that the tubes 2 are oriented perpendicular to those of the other contiguous panels.

Les moyens d'assemblage 7 sont des coins de positionnement.The assembly means 7 are positioning corners.

Les barrettes d'écartement 5 peuvent comporter, sur leur face interne 8, au-dessous des plots d'emmanchement 4, un rail de guidage 9 qui fait office de réglette support pour le registre 10 qui peut éventuellement être mis en place dans les dalles ou panneaux 1. Le rail de guidage 9 peut être rapporté sur la réglette 5 ou formé dans le profil de la réglette.The spacing bars 5 may comprise, on their internal face 8, below the fitting studs 4, a guide rail 9 which acts as a support strip for the register 10 which can optionally be placed in the slabs or panels 1. The guide rail 9 can be attached to the strip 5 or formed in the profile of the strip.

La face inférieure 11 de la barrette d'écartement 5 peut comporter des moyens d'accrochage, ou une surface anti-dérapante 12.The lower face 11 of the spacer bar 5 may comprise attachment means, or a non-slip surface 12.

Le registre 10 est une plaque avec les mêmes ouvertures longitudinales qui correspondent aux écartements entre les tubes 2 de la dalle 1. Le déplacement du registre 10 par rapport à la dalle 1 règle le débit d'air de la ventilation.The damper 10 is a plate with the same longitudinal openings which correspond to the spacings between the tubes 2 of the slab 1. The movement of the damper 10 relative to the slab 1 regulates the air flow of the ventilation.

Selon des modes de réalisations préférés, voir les figures 7 et 8, au moins une ou plusieurs ouvertures 15 font office de rampe de guidage 16 par un plan incliné qui, en introduisant un levier ou un axe tel que la pointe longitudinale d'un outil (tournevis) et en le déplaçant à travers les ouvertures des tubes 2 de la dalle 1 et sur ladite rampe 16, entraine le déplacement horizontal dudit registre 10, ce qui permet l'ouverture ou la fermeture pour régler le débit d'air. According to preferred embodiments, see Figures 7 and 8, at least one or more openings 15 act as a guide ramp 16 by an inclined plane which, by introducing a lever or an axis such as the longitudinal tip of a tool (screwdriver) and by moving it through the openings of the tubes 2 of the slab 1 and on said ramp 16, causes the horizontal movement of said register 10, which allows the opening or closing to adjust the air flow.

Claims (9)

1. Dalle ou panneau amovible pour plancher technique notamment pour salles blanches du type reposant sur des vérins réglables caractérisé par le fait qu'elle est constituée par un jeu de tubes (2) parallèlement disposés l'un à l'autre et maintenus avec un certain espace entre eux par leurs extrémités ouvertes (3), lesdites extrémités sont emmanchées sur des plots d'emmanchement (4) disposés le long de moyens faisant office de traverses et de barrettes d'écartement (5), lesdites barrettes d'écartement (5) sont pourvues de moyens d'assemblage (7) à leurs extrémités et sur leur chant,que ces moyens d'assemblage (7) permettent d'assembler entre-elles des dalles ou panneaux en formant un croisillon d'assemblage (8) ; lesdites dalles ou panneaux (1) sont assemblées entre-elles de manière à ce que les tubes (2) soient orientés perpendiculairement à ceux des autres dalles contigues.1. Removable slab or panel for raised floors, in particular for clean rooms of the type resting on adjustable jacks, characterized in that it consists of a set of tubes (2) arranged parallel to one another and held in place by a certain space between them by their open ends (3), said ends are fitted on fitting pins (4) arranged along means acting as crosspieces and spacing bars (5), said spacing bars ( 5) are provided with assembly means (7) at their ends and on their edge, that these assembly means (7) make it possible to assemble slabs or panels together by forming an assembly spider (8) ; said slabs or panels (1) are assembled together so that the tubes (2) are oriented perpendicular to those of the other adjoining slabs. 2. Dalle selon la revendication 1 caractérisée par le fait que les moyens d'assemblage (7) sont des coins de positionnement.2. Slab according to claim 1 characterized in that the assembly means (7) are positioning corners. 3. Dalle selon l'une quelconque des revendications 1, 2, 3, 4, 5 ou 6 caractérisée par le fait que les barrettes d'écartement (5) peuvent comporter, sur leur face interne (8), au-dessous des plots d'emmanchement (4), un rail de guidage (9) qui fait office de réglette support pour le registre (10).3. Slab according to any one of claims 1, 2, 3, 4, 5 or 6 characterized in that the spacer bars (5) may comprise, on their internal face (8), below the studs fitting (4), a guide rail (9) which acts as a support strip for the register (10). 4. Dalle selon la revendication 3 caractérisé par le fait que le rail de guidage (9) peut être rapporté sur la réglette (5) ou formé dans le profil de la réglette.4. Slab according to claim 3 characterized in that the guide rail (9) can be attached to the strip (5) or formed in the profile of the strip. 5. Dalle selon l'une quelconque des revendications 1, 2 ou 3 caractérisé par le fait que la face inférieure (11) de la barrette d'écartement (5) peut comporter des moyens d'accrochage, ou une surface anti-dérapante (12).5. Slab according to any one of claims 1, 2 or 3 characterized in that the lower face (11) of the spacer bar (5) may include attachment means, or a non-slip surface ( 12). 6. Dalle selon la revendication 1 caractérisé par le fait que les plots d'emmanchement (4) comportent un chanfrein de guidage (6) qui facilite l'emmanchement des tubes (2) par leurs extrémités ouvertes (3).6. Slab according to claim 1 characterized in that the fitting studs (4) comprise a guide chamfer (6) which facilitates the fitting of the tubes (2) by their open ends (3). 7. Dalle selon la revendication 1 caractérisé par le fait que les tubes (2) sont en fibre de carbone.7. Slab according to claim 1 characterized in that the tubes (2) are made of carbon fiber. 8. Dalle selon l'une quelconque des revendications 1 ou 3 caractérisée par le fait que le registre (10) peut comporter un moyen faisant office de rampe de guidage (16) qui permet, en déplaçant un levier ou un axe entre les ouvertures longitudinales entre les tubes (2) de la dalle (1), de prendre appui sur lesdits tubes pour déplacer horizontalement ledit registre (10) pour régler l'ouverture ou la fermeture du débit d'air.8. Slab according to any one of claims 1 or 3 characterized in that the register (10) may include a means acting as a guide ramp (16) which allows, by moving a lever or an axis between the longitudinal openings between the tubes (2) of the slab (1), take pressing on said tubes to move said register (10) horizontally to adjust the opening or closing of the air flow. 9. Dalle selon la revnedication 8 caractérisée par le fait que le moyen faisant office de rampe de guidage (16) est un plan incliné prévu entre deux ouvertures dans le registre (10).9. Slab according to Revnedication 8 characterized in that the means acting as a guide ramp (16) is an inclined plane provided between two openings in the register (10).
EP87480018A 1986-11-07 1987-11-05 Technical flooring-tile composed of open-ended tubes held between spacing bars Expired - Lifetime EP0267135B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8615650A FR2606442B1 (en) 1986-11-07 1986-11-07 SLAB FOR TECHNICAL FLOOR FORMED BY TUBES OPENED AT THEIR END AND MAINTAINED BETWEEN THEM BY SPACER BARS
FR8615650 1986-11-07

Publications (2)

Publication Number Publication Date
EP0267135A1 true EP0267135A1 (en) 1988-05-11
EP0267135B1 EP0267135B1 (en) 1991-01-30

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US (1) US4791763A (en)
EP (1) EP0267135B1 (en)
DE (1) DE3767831D1 (en)
FR (1) FR2606442B1 (en)

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EP0396136A1 (en) * 1989-05-05 1990-11-07 Rheinhold & Mahla AG Slab for false floors
CN106765756A (en) * 2016-12-15 2017-05-31 重庆元云联科技有限公司 A kind of changes in temperature wood flooring systems

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US5339581A (en) * 1992-03-31 1994-08-23 Schlickenmeyer Glen A Modular deck flooring system
USD754404S1 (en) * 2013-11-05 2016-04-19 Jansen Holding B.V. Grating for the keeping of poultry

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US4791763A (en) 1988-12-20
EP0267135B1 (en) 1991-01-30
FR2606442A1 (en) 1988-05-13
FR2606442B1 (en) 1991-07-19
DE3767831D1 (en) 1991-03-07

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