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WO1999058792A1 - Device for automatically refolding an envelope inflated with a fluid when it is being emptied by negative pressure - Google Patents

Device for automatically refolding an envelope inflated with a fluid when it is being emptied by negative pressure Download PDF

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Publication number
WO1999058792A1
WO1999058792A1 PCT/FR1999/001001 FR9901001W WO9958792A1 WO 1999058792 A1 WO1999058792 A1 WO 1999058792A1 FR 9901001 W FR9901001 W FR 9901001W WO 9958792 A1 WO9958792 A1 WO 9958792A1
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WO
WIPO (PCT)
Prior art keywords
envelope
stakes
emptied
volume
fluid
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.)
Ceased
Application number
PCT/FR1999/001001
Other languages
French (fr)
Inventor
Claude Roy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1999058792A1 publication Critical patent/WO1999058792A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses
    • A47C27/081—Fluid mattresses of pneumatic type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08—Inflatable
    • B63B7/082—Inflatable having parts of rigid material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses
    • A47C27/085—Fluid mattresses of liquid type, e.g. filled with water or gel
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses
    • A47C27/087—Fluid mattresses with means for connecting opposite sides, e.g. internal ties or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/081—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like having compartments comprising elements which are filled with gas by deployment, e.g. sponge-like elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/203—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework supported by a non-inflatable structure or framework
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • E04H2015/205—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework made from two sheets with intermediate spacer means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/206—Details of inflation devices, e.g. valves, connections to fluid pressure source

Definitions

  • the present invention relates to a device allowing a flexible, closed and folded envelope to automatically return to its initial shape during a deformation cycle comprising filling with a pressurized fluid and emptying by vacuum.
  • this type of envelope deforms under the effect of the pressure of a fluid (gas or liquid).
  • a fluid gas or liquid
  • this envelope does not automatically fold back to its original shape. 0 To fold it up, it is necessary to carry out additional external interventions, either during the emptying phase or a posteriori.
  • the device according to the invention is to remedy this drawback by automating the folding of the envelope during its emptying.
  • it in fact comprises a network of rigid stakes and a network of elastic links connecting the opposite walls of the envelope alternately.
  • the tutors have the function of keeping the distance from the walls according to a network of points.
  • the elastic 0 links have the function of guiding the deformation of the surface of the envelope during the filling and emptying phases according to a network of points.
  • the movements of the envelope are constrained by the work of these networks: the folding of the envelope identically is automatic.
  • the 5th folding can be completed at the end of the cycle by placing the envelope under vacuum, in order to tighten the folds along the stakes, and to ensure better compactness and better rigidity for the whole.
  • connections between the stakes and the envelope can be provided with articulations in order to increase the flexibility of the volume put under pressure
  • the dimensions of the stakes and elastic links can be variable to obtain a complex volume comprising 5 concave or convex parts;
  • FIG. 1 shows in section the device of the invention in the folded position.
  • FIG 2 shows in section, this device in the deployed position.
  • FIG. 3 shows in plan, this device in the folded position.
  • FIG. 4 shows a plan, this device in the deployed position.
  • FIG. 5 represents this device in axonometry.
  • the device comprises, inside the envelope (1), the network of stakes (2) and that of the elastic links (3).
  • the envelope (1) is pressurized through an orifice provided with a valve (4) which can also be used for emptying and for putting it into vacuum.
  • the surface of the envelope (1) is brought back pleated around the stakes (2) and the length of the elastic links (3) is such that the surface of the envelope (1) is maintained tense.
  • the envelope (1) would be made with a fabric coated with an elastomer, the stakes (2) composed of fiberglass tubes provided with a nozzle at each end to allow their collage on -3-
  • the elastic links (3) of an elastomeric cord whose ends would be flared to increase the adhesion surface on the envelope (1).
  • the stakes (2) and the elastic links (3) would then be glued to the envelope.
  • the envelope would be pressurized by an air or inert gas injection system through the valve (4) to take, in this case, a shape of a parallelepiped.
  • the valve (4) After the inflation phase, the valve (4) would be closed and the system disconnected to make the volume thus produced independent.
  • the deflation would be obtained by opening the valve (4).
  • the volume would be reduced to its equilibrium position then, after connection to a system making it possible to create an additional depression, this volume would be compacted until obtaining the desired bulk and rigidity.
  • the valve (4) would be closed and the system disconnected.
  • the dimensions given to the object depend on the number of points constituting the networks, and on the distance which separates these points, relative to the desired application.
  • the device according to the invention is particularly intended for the manufacture of inflatable structures, in particular in the following fields:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

The invention concerns a device for automatically refolding an envelope (1) inflated with a fluid while it is being emptied. When it is being inflated, the elastic linkages (3) are tensioned, and the stakes (1) move away from one another to form the volume. When it is being emptied, the elastic linkages (3) form pleats in the envelope around the stakes (1) which are brought closer to one another. The deflating process is completed by negative pressure through the valve (4). The folded envelope (1) recovers its initial shape. The invention is particularly designed for inflatable structures, in particular for shipbuilding (mattresses, rafts, floating objects), civil engineering (festival tents, canopies), reduced-size models, objects for leisure or artistic purposes.

Description

-1- DISPOSITIF POUR REPLIER AUTOMATIQUEMENT UNE ENVELOPPE GONFLEE PAR UN FLUIDE -1- DEVICE FOR AUTOMATICALLY FOLDING AN ENVELOPE INFLATED BY A FLUID

AU COURS DE SON VIDAGE PAR DEPRESSIONDURING ITS EMPTYING BY DEPRESSION

La présente invention concerne un dispositif permettant à une enveloppe, souple, fermée et pliée de revenir automatiquement à sa forme initiale au cours d'un cycle de déformations comprenant un remplissage par un fluide sous pression et un vidage par dépression.The present invention relates to a device allowing a flexible, closed and folded envelope to automatically return to its initial shape during a deformation cycle comprising filling with a pressurized fluid and emptying by vacuum.

Lors de son remplissage, ce type d'enveloppe se déforme sous l'effet de la pression d'un fluide (gaz ou liquide). Traditionnellement, lorsque cette enveloppe se vide, elle ne se replie pas automatiquement pour reprendre sa forme initiale. 0 Pour la replier, il est nécessaire de procéder à des interventions supplémentaires extérieures, soit au cours de la phase de vidage, soit à posteriori.During filling, this type of envelope deforms under the effect of the pressure of a fluid (gas or liquid). Traditionally, when this envelope is empty, it does not automatically fold back to its original shape. 0 To fold it up, it is necessary to carry out additional external interventions, either during the emptying phase or a posteriori.

Le dispositif selon l'invention est de remédier à cet inconvénient en automatisant le repliage de l'enveloppe au cours 5 de son vidage. Il comporte en effet selon une première caractéristique un réseau de tuteurs rigides et un réseau de liens élastiques reliant les parois opposées de l'enveloppe par alternance. Les tuteurs ont pour fonction de conserver 1 ' éloignement des parois selon un réseau de points. Les liens 0 élastiques ont pour fonction de guider la déformation de la surface de l'enveloppe au cours des phases de remplissage et de vidage selon un réseau de points. Ainsi, les mouvements de l'enveloppe sont-ils contraints par le travail de ces réseaux: le repliage de l'enveloppe à l'identique est automatique. Le 5 pliage peut être complété en fin de cycle par une mise en dépression de l'enveloppe, afin de resserrer les plis le long des tuteurs, et d'assurer une meilleure compacité et une meilleure rigidité à l'ensemble.The device according to the invention is to remedy this drawback by automating the folding of the envelope during its emptying. According to a first characteristic, it in fact comprises a network of rigid stakes and a network of elastic links connecting the opposite walls of the envelope alternately. The tutors have the function of keeping the distance from the walls according to a network of points. The elastic 0 links have the function of guiding the deformation of the surface of the envelope during the filling and emptying phases according to a network of points. Thus, the movements of the envelope are constrained by the work of these networks: the folding of the envelope identically is automatic. The 5th folding can be completed at the end of the cycle by placing the envelope under vacuum, in order to tighten the folds along the stakes, and to ensure better compactness and better rigidity for the whole.

Selon des modes particuliers de réalisation: 0 -les liaisons entre les tuteurs et l'enveloppe peuvent être munies d'articulations dans le but d'augmenter la souplesse du volume mis sous pression;According to particular embodiments: 0 - the connections between the stakes and the envelope can be provided with articulations in order to increase the flexibility of the volume put under pressure;

-les dimensions des tuteurs et des liens élastiques peuvent être variables pour obtenir un volume complexe comportant des 5 parties concaves ou convexes;-the dimensions of the stakes and elastic links can be variable to obtain a complex volume comprising 5 concave or convex parts;

-des liaisons supplémentaires (du type cables, renforts, ... ) peuvent être crées entre les sommets des réseaux pour -2 --additional links (such as cables, reinforcements, ...) can be created between the tops of the networks for -2 -

améliorer la résistance mécanique du volume mis sous pression.improve the mechanical resistance of the pressurized volume.

-la valve permettant le remplissage peut également être utilisée pour la mise en dépression de l'enveloppe. Les dessins annexés illustrent l'invention: -la figure 1 représente en coupe, le dispositif de l'invention dans la position pliée.-the valve allowing the filling can also be used for the depression of the envelope. The accompanying drawings illustrate the invention: FIG. 1 shows in section the device of the invention in the folded position.

-la figure 2 représente en coupe, ce dispositif en position déployée .FIG 2 shows in section, this device in the deployed position.

-la figure 3 représente en plan, ce dispositif en position pliée.FIG. 3 shows in plan, this device in the folded position.

-la figure 4 représente plan, ce dispositif en position déployée .FIG. 4 shows a plan, this device in the deployed position.

-la figure 5 représente ce dispositif en axonométrie. En référence à ces dessins, le dispositif comporte à l'intérieur de l'enveloppe (1), le réseau des tuteurs (2) et celui des liens élastiques (3). L'enveloppe (1) est mise sous pression à travers un orifice muni d'une valve (4) qui peut également servir à son vidage et à sa mise en dépression.FIG. 5 represents this device in axonometry. With reference to these drawings, the device comprises, inside the envelope (1), the network of stakes (2) and that of the elastic links (3). The envelope (1) is pressurized through an orifice provided with a valve (4) which can also be used for emptying and for putting it into vacuum.

-Lorsque le dispositif est en position pliée, la surface de l'enveloppe (1) est ramenée plissée autour des tuteurs (2) et la longueur des liens élastiques (3) est telle que la surface de l'enveloppe (1) est maintenue tendue.-When the device is in the folded position, the surface of the envelope (1) is brought back pleated around the stakes (2) and the length of the elastic links (3) is such that the surface of the envelope (1) is maintained tense.

-Lors de la phase de remplissage, la pression qui s'exerce sur la surface de l'enveloppe (1) écarte ses parois. Les liens élastiques (3) se mettent alors en tension, et les tuteurs (1) s'éloignent les uns des autres. Le volume se constitue dans ces conditions jusqu'à l'obtention d'une forme de service.-During the filling phase, the pressure exerted on the surface of the envelope (1) spreads its walls. The elastic links (3) are then put in tension, and the stakes (1) move away from each other. The volume is built up under these conditions until a form of service is obtained.

-Lors de la phase de vidage, la diminution de la pression détend l'enveloppe (1). La tension des liens élastiques (3) force alors la surface de l'enveloppe (1) à se plisser suivant leur direction jusqu'à une position d'équilibre. Le vidage peut être alors complété par dépression à travers la valve (4), ce qui a pour effet de reserrer les plis le long des tuteurs (2) . Dans la forme de réalisation selon la figure 3, l'enveloppe (1) serait confectionnée avec un tissus enduit d'un élastomère, les tuteurs (2) composés de tubes de fibre de verre munis d'un embout à chaque extrémité pour permettre leur collage sur -3--During the emptying phase, the reduction in pressure relaxes the casing (1). The tension of the elastic links (3) then forces the surface of the envelope (1) to crease in their direction to an equilibrium position. The emptying can then be completed by vacuum through the valve (4), which has the effect of tightening the folds along the stakes (2). In the embodiment according to Figure 3, the envelope (1) would be made with a fabric coated with an elastomer, the stakes (2) composed of fiberglass tubes provided with a nozzle at each end to allow their collage on -3-

1' enveloppe (1), les liens élastiques (3) d'un cordon en élastomère dont les extrémités seraient évasées afin d'augmenter la surface d'adhérence sur l'enveloppe (1). Les tuteurs (2) et les liens élastiques (3) seraient alors collés sur l'enveloppe. L'enveloppe serait mise sous pression par un système d'injection d'air ou de gaz inerte à travers la valve (4) pour prendre, dans ce cas, une forme de parallélépipède. Après la phase de gonflage, la valve (4) serait fermée et le système déconnecté pour rendre le volume ainsi réalisé indépendant. Le dégonflage serait obtenu par l'ouverture de la valve (4). Le volume se réduirait jusqu'à sa position d'équilibre puis, après connection sur un système permettant de créer une dépression supplémentaire, ce volume serait compacté jusqu'à obtenir l'encombrement et la rigidité recherchés. En fin de cycle, la valve (4) serait refermée et le système déconnecté.1 envelope (1), the elastic links (3) of an elastomeric cord whose ends would be flared to increase the adhesion surface on the envelope (1). The stakes (2) and the elastic links (3) would then be glued to the envelope. The envelope would be pressurized by an air or inert gas injection system through the valve (4) to take, in this case, a shape of a parallelepiped. After the inflation phase, the valve (4) would be closed and the system disconnected to make the volume thus produced independent. The deflation would be obtained by opening the valve (4). The volume would be reduced to its equilibrium position then, after connection to a system making it possible to create an additional depression, this volume would be compacted until obtaining the desired bulk and rigidity. At the end of the cycle, the valve (4) would be closed and the system disconnected.

Les dimensions données à l'objet dépendent du nombre de points constituant les réseaux, et de la distance qui sépare ces points, relativement à l'application souhaitée. Le dispositif selon l'invention est particulièrement destiné à la fabrication de structures gonflables, notamment dans les domaines suivants:The dimensions given to the object depend on the number of points constituting the networks, and on the distance which separates these points, relative to the desired application. The device according to the invention is particularly intended for the manufacture of inflatable structures, in particular in the following fields:

-la construction navale (matelas pneumatiques, radeaux, canots, barges, quais et autres objets flottants aménagés ou non) ;- shipbuilding (air mattresses, rafts, canoes, barges, docks and other floating objects, whether fitted or not);

-le génie civil (tentes, chapiteaux, auvents, couvertures diverses et autres applications trouvant avantage à déployer et replier une surface de couverture) ;- civil engineering (tents, marquees, awnings, various covers and other applications that benefit from deploying and folding up a cover surface);

-le modélisme, divers objets ludiques ou à connotation artistique . -modeling, various playful objects or with artistic connotation.

Claims

-4- -4- REVENDICA IONSREVENDICA IONS 1) Dispositif permettant à une enveloppe (1), souple, fermée et pliée de revenir automatiquement à sa forme initiale au cours d'un cycle de déformations comprenant son remplissage par un fluide sous pression et son vidage par dépression. Ce dispositif est caractérisé en ce qu'il comporte un réseau de tuteurs (2) rigides et un réseau de liens élastiques (3) reliant les parois opposées de l'enveloppe (1) par alternance.1) Device allowing a flexible, closed and folded envelope (1) to automatically return to its initial shape during a deformation cycle comprising its filling with a pressurized fluid and its emptying by vacuum. This device is characterized in that it comprises a network of rigid stakes (2) and a network of elastic links (3) connecting the opposite walls of the envelope (1) alternately. 2) Dispositif selon la revendication 1 caractérisé en ce que les liaisons entre les tuteurs (2) et l'enveloppe (1) sont munies d'articulations dans le but d'augmenter la souplesse du volume mis sous pression;2) Device according to claim 1 characterized in that the connections between the stakes (2) and the envelope (1) are provided with joints in order to increase the flexibility of the volume pressurized; 3) Dispositif selon la revendication 1 ou la revendication 2 caractérisé en ce que les dimensions des tuteurs (2) et des liens élastiques (3) sont variables pour obtenir un volume complexe comportant des parties concaves ou convexes;3) Device according to claim 1 or claim 2 characterized in that the dimensions of the stakes (2) and elastic links (3) are variable to obtain a complex volume comprising concave or convex parts; 4) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que des liaisons supplémentaires, du type cables, sont créées entre les sommets des réseaux pour améliorer la résistance mécanique du volume mis sous pression. 4) Device according to any one of the preceding claims, characterized in that additional connections, of the cable type, are created between the tops of the networks to improve the mechanical resistance of the pressurized volume.
PCT/FR1999/001001 1998-05-11 1999-04-28 Device for automatically refolding an envelope inflated with a fluid when it is being emptied by negative pressure Ceased WO1999058792A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9806120A FR2778451A1 (en) 1998-05-11 1998-05-11 Fluid inflated envelope for multiple use
FR98/06120 1998-05-11

Publications (1)

Publication Number Publication Date
WO1999058792A1 true WO1999058792A1 (en) 1999-11-18

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ID=9526377

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Application Number Title Priority Date Filing Date
PCT/FR1999/001001 Ceased WO1999058792A1 (en) 1998-05-11 1999-04-28 Device for automatically refolding an envelope inflated with a fluid when it is being emptied by negative pressure

Country Status (2)

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FR (1) FR2778451A1 (en)
WO (1) WO1999058792A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004094741A1 (en) * 2003-04-17 2004-11-04 Mangar International Limited Floor covering

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610898A (en) * 1923-10-05 1926-12-14 Cleveland R Steiner Pneumatic mattress
DE1961523A1 (en) * 1968-12-09 1970-09-24 Michel Fourtane Inflatable structures with variable shape and variable volume, in particular for the production of structural elements such as vaults, walls, walls, partitions or elements of movable roofs
FR2586055A1 (en) * 1985-08-07 1987-02-13 Ricard Philippe Improvement to inflatable structures
EP0678263A1 (en) * 1994-03-01 1995-10-25 Etienne Leflaive Pneumatic mattress

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610898A (en) * 1923-10-05 1926-12-14 Cleveland R Steiner Pneumatic mattress
DE1961523A1 (en) * 1968-12-09 1970-09-24 Michel Fourtane Inflatable structures with variable shape and variable volume, in particular for the production of structural elements such as vaults, walls, walls, partitions or elements of movable roofs
FR2586055A1 (en) * 1985-08-07 1987-02-13 Ricard Philippe Improvement to inflatable structures
EP0678263A1 (en) * 1994-03-01 1995-10-25 Etienne Leflaive Pneumatic mattress

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004094741A1 (en) * 2003-04-17 2004-11-04 Mangar International Limited Floor covering

Also Published As

Publication number Publication date
FR2778451A1 (en) 1999-11-12

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121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase