US20070256243A1 - Pneumatic Cushions with Reinforcing Members or Braces - Google Patents
Pneumatic Cushions with Reinforcing Members or Braces Download PDFInfo
- Publication number
- US20070256243A1 US20070256243A1 US11/628,472 US62847205A US2007256243A1 US 20070256243 A1 US20070256243 A1 US 20070256243A1 US 62847205 A US62847205 A US 62847205A US 2007256243 A1 US2007256243 A1 US 2007256243A1
- Authority
- US
- United States
- Prior art keywords
- pneumatic
- webs
- cushion according
- bars
- reinforcing
- 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.)
- Abandoned
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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 or cushions
- A47C27/088—Fluid mattresses or cushions incorporating elastic bodies, e.g. foam
-
- 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 or cushions
- A47C27/081—Fluid mattresses or cushions of pneumatic type
-
- 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 or cushions
- A47C27/087—Fluid mattresses or cushions with means for connecting opposite sides, e.g. internal ties or strips
Definitions
- the present invention relates to pneumatic cushions, particularly for sitting, reclining and lying cushions.
- the simplest way of achieving this is by installing tubes side by side, each of which is round in cross-section.
- An example of this that can be used here is the traditional airbed.
- the individual tubes are usually interconnected in such a manner as to form one or two continuous air chambers.
- the object of the invention is to create cushions offering a high degree of comfort, in particular for sitting, lying or reclining on, which at the same time have a stable, sustainable form.
- the cushions in the invention have an inner pneumatic structure.
- This pneumatic structure creates at least one gas-tight chamber.
- the bars or webs are fitted or disposed on or in the pneumatic structure.
- Cushions constructed in this manner are particularly suitable as sitting, reclining and lying cushions. They may, in particular, be used in items of furniture such as seats, chairs and beds, but also in means of transport.
- bars are integrated in the pneumatic structure.
- pneumatic webs are used, which are likewise integrated in the pneumatic structure.
- FIGS. 1 to 3 show different pneumatic structures with reinforcing bars
- FIG. 4 shows a pneumatic web
- FIG. 5 shows another pneumatic web
- FIGS. 6 to 8 show different pneumatic structures with different pneumatic webs.
- FIG. 1 shows a pneumatic structure 1 , which is made from a gas-tight casing and webs 3 .
- the webs 3 run from the top to the bottom of the casing 2 .
- the webs 3 may be made from the same material as the casing, but they may also be composed of a gas-permeable substance or a film.
- the webs produce chambers 4 , which can be interconnected. When pressurised, board-like cushions, for example, can thereby be created.
- some of the webs 3 are provided with pockets 7 . Bars 10 are disposed in the pockets 7 . These bars 10 may be made from plastic, a metal such as aluminium, or wood, for example.
- the bars 10 or flexible bars 11 are disposed in pockets 7 in the casing 2 .
- the bars 10 , 11 can also be adhered externally, for example, to the casing 2 .
- bars 10 or flexible bars 11 as depicted in FIG. 1 , can be used for this.
- the flexible bars 11 have the property of being able to adopt a flat form like the bars 10 without external forces. If the pneumatic structure 1 is pressurised, the casing 2 adopts its characteristic convex form between the bars. This means that the flexible bars 11 are bent essentially crossways to their longitudinal axis. In this bent form, the flexible bars 11 are buckle-proof, like the bars 10 , and are able to produce the same reinforcing effect.
- the flexible bars 11 are disposed by way of example on the bottom and on the edge of the pneumatic structure. So that the flexible bars 11 can even be bent at low pressures of below 50 kPa (500 mBar), it is advantageous for the inner layer of the casing 2 at the pockets 7 to be made from an airtight material. In this way, the pressure p 1 acts from within by means of the inner layer of the casing 2 on the flexible bars 11 .
- the pneumatic structure 1 has, in addition, a central, horizontal web 3 , which produces upper and lower chambers 4 in the pneumatic structure.
- pockets are disposed in the horizontal web 3 between one upper and one lower chamber 4 .
- the pockets 7 each contain a bar 10 , one with a triangular and one with a square cross-section.
- a pocket 7 at an intersection between a vertical and the horizontal web 3 is a pocket 7 at an intersection between a vertical and the horizontal web 3 .
- a pipe-shaped bar 10 Inserted in this pocket 7 is a pipe-shaped bar 10 . Furthermore, inserted in the pockets 7 on the right side of FIG. 2 are gas-tight tubes 6 or generally gas-tight bladders.
- the advantage of this pneumatic structure design is that elastic materials can also be used for the gas-tight tubes 6 . Materials with limited extensibility can now be used for the casing 2 and the shaping webs 3 , which need not also be simultaneously gas-tight. A functional separation can thereby be achieved.
- FIG. 2 further contains a schematic representation of a cover 9 .
- This cover 9 satisfies purely aesthetic requirements, as it represents the only visible component of a cushion constructed in this way.
- the pneumatic structure 1 in FIG. 3 is constructed solely from gas-tight and limited extensibility tubes 6 .
- the tubes 6 are disposed by way of example in two layers.
- Bars 10 are disposed between the tubes 6 , which are connected to the tubes 6 at the joints 8 . Examples of suitable methods of connection are welding and gluing.
- the joints may, of course, also be made in segmented or point form.
- a bar 10 is inserted as a further variant, which runs essentially orthogonally to the tubes 6 .
- the bar 10 can of course be aligned in any way.
- the bars 10 , 11 may also be latticed or perforated.
- FIG. 4 shows a pneumatic web 19 . It is made from an essentially cigar-shaped hollow body 20 and a compression bar 22 , which is attached to it or inserted between two layers in a pocket 7 in the hollow body 20 .
- the compression bar 22 has a flat cross-section and is flexible, so that it lies arcuately along its longitudinal axis against the hollow body 20 , if the latter is pressurised. In this functional, curved form, the compression bar 22 is significantly stiffer than in its flat, non-functional form.
- the compression bar 22 may be constituted in such a way that it is rollable in its non-functional form, so that it operates in a similar way to a roll-up tape measure.
- a structural element 19 designed in this manner is therefore able to strengthen a cushion and be folded or rolled away along with the pneumatic web 19 in the depressurised state.
- FIG. 5 shows a variant of the pneumatic web 19 .
- tie bands 21 are disposed. They run to the left and right, turning helically around the hollow body 20 from one end of the compression bar 22 to the other or to nodal elements 23 attached to the ends of the hollow body 20 . If the hollow body 20 is pressurised, the tie bands 21 become taut and push the compression bar 22 against the hollow body 20 .
- the compression bar 22 itself absorbs the tensile forces of the tie bands 21 and is thereby pressurised along its longitudinal axis. Since in this case the compression bar 22 is additionally pressed in its functional form against the hollow body 20 , the pneumatic web 19 is very rigid in this embodiment and can likewise be rolled up in its non-functional form.
- the pneumatic webs 19 can of course also be constructed with two or more compression bars 22 , with only one or a plurality of tie bands, or else one or more elements, which are suitable for absorbing tensile forces.
- Non-cylindrical forms of the hollow body 20 are also included in the basic idea underlying the invention.
- the tie bands 21 and the compression bar 22 may be interconnected in such a manner that the longitudinal axis of the pneumatic web 19 starts to bend under pressure.
- the use of rigid, dimensionally stable compression bars 22 is conceivable and in accordance with the invention.
- FIG. 6 shows a pneumatic structure essentially identical to that in FIG. 1 .
- pneumatic webs 19 are inserted in a small number of chambers 4 , which essentially fill these chambers 4 .
- one of the webs 3 is provided with a pocket 7 , in which a pneumatic web 19 is inserted.
- the pneumatic webs 19 are subjected to a pressure p 2 , p 2 >p 1 , which gives them their essentially round cross-section.
- the pneumatic webs 19 illustrated have flexible compression bars 22 , which perform the same function as the flexible bars 11 .
- FIG. 7 shows a pneumatic structure 1 constructed in accordance with the right side of FIG. 2 .
- a pneumatic web 19 with two compression bars 22 and four tie bands 21 Inserted in the pocket 7 at the intersection between the horizontal and a vertical web 3 is a pneumatic web 19 with two compression bars 22 and four tie bands 21 .
- This hollow body 20 is also subjected to a pressure p 2 , p 2 >p 1 .
- FIG. 8 shows a pneumatic structure 1 constructed in accordance with the right side of FIG. 2 . This time, there is a pneumatic web 19 with only one compression bar 22 and two tie bands 21 inserted in the pocket 7 at an intersection point. Pneumatic webs 19 with one or two flexible compression bars 22 are disposed in lower chambers 4 .
- the differently designed pneumatic webs 19 are naturally interchangeable.
- the pneumatic webs 19 may also be attached outside the pneumatic structure 1 . Furthermore, they can also be used to create latticework, which supports the pneumatic structure 1 internally or externally. For example, four pneumatic webs 19 can be added together to produce a framework, which surrounds a square pneumatic structure 1 or is inserted in it.
- bars 10 , 11 or compression bars 22 are disposed right under the casing 2 , in other words, under the outermost skin of the pneumatic structure 1 , it is conceivable for these bars 10 , 11 , 22 to be provided with mounting or connecting means.
- mounting or connecting means for example, in bars 10 , 11 , 22 threads can be added, so that the cushions can be screwed to a frame.
- FIGS. 1 to 8 should be understood as mutually replaceable and combinable. It is conceivable for a pneumatic structure 1 to be equipped with only one type of reinforcing bar 10 , 11 or pneumatic web 19 or different types combined together.
- the pneumatic structures 1 may be used as cushions as they are or they may be provided with a cover 9 .
- the cover may be removable and separately washable, for example.
Landscapes
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
A pneumatic cushion having an inner pneumatic structure constructed from a casing and webs or a plurality of tubes. The webs produce a plurality of chambers. The inner pneumatic structure may be pressurised at a pressure p1. At least one reinforcing and stiffening means is present on or in the pneumatic structure and disposed in such a manner that the pneumatic cushion's dimensional stability is increased.
Description
- 1. Technical Field
- The present invention relates to pneumatic cushions, particularly for sitting, reclining and lying cushions.
- 2. History of Related Art
- Many kinds of pneumatic cushions are known in the art. Efforts have already been made to incorporate these into the production of chairs and beds, or else flat structures.
- The simplest way of achieving this is by installing tubes side by side, each of which is round in cross-section. An example of this that can be used here is the traditional airbed. The individual tubes are usually interconnected in such a manner as to form one or two continuous air chambers.
- In U.S. Pat. No. 2,748,401 (Dl) the tubes are interconnected in such a manner that part of a tube wall is also part of the tube wall of a second tube. A quasi coming-together of the individual tubes can thereby be achieved. The individual tubes lie on one or two levels, depending on the configuration.
- However, the disadvantage of Dl is that such a design only has a low inherent stability. These flat pneumatic structures quickly buckle when subjected to a load or have to be highly pressurised, which makes them hard and uncomfortable.
- The object of the invention is to create cushions offering a high degree of comfort, in particular for sitting, lying or reclining on, which at the same time have a stable, sustainable form.
- The object is solved as described in the characterising clause of
patent claim 1, in relation to its essential features, and in the dependant claims, in relation to the other advantageous features. - The cushions in the invention have an inner pneumatic structure. This pneumatic structure creates at least one gas-tight chamber. The bars or webs are fitted or disposed on or in the pneumatic structure. Cushions constructed in this manner are particularly suitable as sitting, reclining and lying cushions. They may, in particular, be used in items of furniture such as seats, chairs and beds, but also in means of transport.
- In a first embodiment of the inventive idea, bars are integrated in the pneumatic structure. In a second embodiment, pneumatic webs are used, which are likewise integrated in the pneumatic structure.
- A more complete understanding of the pneumatic cushions of the present invention may be obtained by reference to the following Detailed Description, when taken in conjunction with the accompanying Drawings, wherein:
- FIGS. 1 to 3 show different pneumatic structures with reinforcing bars,
-
FIG. 4 shows a pneumatic web, -
FIG. 5 shows another pneumatic web, - FIGS. 6 to 8 show different pneumatic structures with different pneumatic webs.
-
FIG. 1 shows apneumatic structure 1, which is made from a gas-tight casing andwebs 3. Thewebs 3 run from the top to the bottom of thecasing 2. Thewebs 3 may be made from the same material as the casing, but they may also be composed of a gas-permeable substance or a film. The webs producechambers 4, which can be interconnected. When pressurised, board-like cushions, for example, can thereby be created. InFIG. 1 , some of thewebs 3 are provided withpockets 7.Bars 10 are disposed in thepockets 7. Thesebars 10 may be made from plastic, a metal such as aluminium, or wood, for example. When a weight is applied, thewebs 3 with thebars 10 cannot loose their shape as easily as those without bars 10. This effect is reinforced when thewebs 3 can be tightened or else subjected to tensile forces by means of the excess pressure p1 in the pneumatic structure. - In a variant of the embodiment, the
bars 10 orflexible bars 11 are disposed inpockets 7 in thecasing 2. Likewise, thebars casing 2. Again, bars 10 orflexible bars 11, as depicted inFIG. 1 , can be used for this. The flexible bars 11 have the property of being able to adopt a flat form like thebars 10 without external forces. If thepneumatic structure 1 is pressurised, thecasing 2 adopts its characteristic convex form between the bars. This means that theflexible bars 11 are bent essentially crossways to their longitudinal axis. In this bent form, theflexible bars 11 are buckle-proof, like thebars 10, and are able to produce the same reinforcing effect. InFIG. 1 theflexible bars 11 are disposed by way of example on the bottom and on the edge of the pneumatic structure. So that theflexible bars 11 can even be bent at low pressures of below 50 kPa (500 mBar), it is advantageous for the inner layer of thecasing 2 at thepockets 7 to be made from an airtight material. In this way, the pressure p1 acts from within by means of the inner layer of thecasing 2 on the flexible bars 11. - In order to prevent a
bar 10 or aflexible bar 11 from being felt as unpleasant when sat upon, for example, it may be covered withpadding 13 or thepadding 13 is simply placed between thebar casing 2. InFIG. 2 thepneumatic structure 1 has, in addition, a central,horizontal web 3, which produces upper andlower chambers 4 in the pneumatic structure. To the left inFIG. 2 , pockets are disposed in thehorizontal web 3 between one upper and onelower chamber 4. Thepockets 7 each contain abar 10, one with a triangular and one with a square cross-section. On the right side ofFIG. 2 is apocket 7 at an intersection between a vertical and thehorizontal web 3. Inserted in thispocket 7 is a pipe-shapedbar 10. Furthermore, inserted in thepockets 7 on the right side ofFIG. 2 are gas-tight tubes 6 or generally gas-tight bladders. The advantage of this pneumatic structure design is that elastic materials can also be used for the gas-tight tubes 6. Materials with limited extensibility can now be used for thecasing 2 and the shapingwebs 3, which need not also be simultaneously gas-tight. A functional separation can thereby be achieved. -
FIG. 2 further contains a schematic representation of acover 9. Thiscover 9 satisfies purely aesthetic requirements, as it represents the only visible component of a cushion constructed in this way. - The
pneumatic structure 1 inFIG. 3 is constructed solely from gas-tight andlimited extensibility tubes 6. In this case, thetubes 6 are disposed by way of example in two layers.Bars 10 are disposed between thetubes 6, which are connected to thetubes 6 at thejoints 8. Examples of suitable methods of connection are welding and gluing. The joints may, of course, also be made in segmented or point form. - Between the upper and lower layer of
tubes 6 inFIG. 3 , abar 10 is inserted as a further variant, which runs essentially orthogonally to thetubes 6. Thebar 10 can of course be aligned in any way. In order to save on weight, thebars -
FIG. 4 shows apneumatic web 19. It is made from an essentially cigar-shapedhollow body 20 and acompression bar 22, which is attached to it or inserted between two layers in apocket 7 in thehollow body 20. Thecompression bar 22 has a flat cross-section and is flexible, so that it lies arcuately along its longitudinal axis against thehollow body 20, if the latter is pressurised. In this functional, curved form, thecompression bar 22 is significantly stiffer than in its flat, non-functional form. Thecompression bar 22 may be constituted in such a way that it is rollable in its non-functional form, so that it operates in a similar way to a roll-up tape measure. Astructural element 19 designed in this manner is therefore able to strengthen a cushion and be folded or rolled away along with thepneumatic web 19 in the depressurised state. -
FIG. 5 shows a variant of thepneumatic web 19. In addition to thehollow body 20 and thecompression bar 22,tie bands 21 are disposed. They run to the left and right, turning helically around thehollow body 20 from one end of thecompression bar 22 to the other or tonodal elements 23 attached to the ends of thehollow body 20. If thehollow body 20 is pressurised, thetie bands 21 become taut and push thecompression bar 22 against thehollow body 20. Thecompression bar 22 itself absorbs the tensile forces of thetie bands 21 and is thereby pressurised along its longitudinal axis. Since in this case thecompression bar 22 is additionally pressed in its functional form against thehollow body 20, thepneumatic web 19 is very rigid in this embodiment and can likewise be rolled up in its non-functional form. - Details of the
pneumatic webs 19 can be obtained from WO 01/73245, PCT/CH2004/000111 and CH 01259/03 held by the same applicant. - The
pneumatic webs 19 can of course also be constructed with two or more compression bars 22, with only one or a plurality of tie bands, or else one or more elements, which are suitable for absorbing tensile forces. Non-cylindrical forms of thehollow body 20 are also included in the basic idea underlying the invention. Furthermore, thetie bands 21 and thecompression bar 22 may be interconnected in such a manner that the longitudinal axis of thepneumatic web 19 starts to bend under pressure. Likewise, the use of rigid, dimensionally stable compression bars 22 is conceivable and in accordance with the invention. - In order for the
pneumatic webs 19 to adopt their functional form, they naturally have to be subjected to a pressure greater than their ambient pressure. -
FIG. 6 shows a pneumatic structure essentially identical to that inFIG. 1 . However,pneumatic webs 19 are inserted in a small number ofchambers 4, which essentially fill thesechambers 4. Likewise, one of thewebs 3 is provided with apocket 7, in which apneumatic web 19 is inserted. Thepneumatic webs 19 are subjected to a pressure p2, p2>p1, which gives them their essentially round cross-section. Thepneumatic webs 19 illustrated have flexible compression bars 22, which perform the same function as the flexible bars 11. Since a small number ofchambers 4 are filled at a pressure p2, p2>p1, it may be appropriate in the case of these chambers once again to insertpadding 13 between thecasing 2 and thepneumatic webs 19. It is, of course, also conceivable thatpneumatic webs 19 with two or more flexible compression bars should be used and thepneumatic webs 19 turned in such a way, for example, that thecompression bar 22 does not lie underneath, as depicted inFIG. 6 , but on the top. -
FIG. 7 shows apneumatic structure 1 constructed in accordance with the right side ofFIG. 2 . Inserted in thepocket 7 at the intersection between the horizontal and avertical web 3 is apneumatic web 19 with twocompression bars 22 and fourtie bands 21. Thishollow body 20 is also subjected to a pressure p2, p2>p1.FIG. 8 shows apneumatic structure 1 constructed in accordance with the right side ofFIG. 2 . This time, there is apneumatic web 19 with only onecompression bar 22 and twotie bands 21 inserted in thepocket 7 at an intersection point.Pneumatic webs 19 with one or two flexible compression bars 22 are disposed inlower chambers 4. The differently designedpneumatic webs 19 are naturally interchangeable. - The
pneumatic webs 19, like thebars pneumatic structure 1. Furthermore, they can also be used to create latticework, which supports thepneumatic structure 1 internally or externally. For example, fourpneumatic webs 19 can be added together to produce a framework, which surrounds a squarepneumatic structure 1 or is inserted in it. - In generalised form, it is conceivable that not only a pressure p1 and a pressure p2 could be used. With different pressures p1 in
different chambers 4, for example, the pressures p2 of thepneumatic webs 19 must be selected, such that they are greater than the pressures p1 in theadjacent chambers 4. - In embodiments in which bars 10, 11 or compression bars 22 are disposed right under the
casing 2, in other words, under the outermost skin of thepneumatic structure 1, it is conceivable for thesebars bars - The embodiments described and illustrated in the preceding FIGS. 1 to 8 should be understood as mutually replaceable and combinable. It is conceivable for a
pneumatic structure 1 to be equipped with only one type of reinforcingbar pneumatic web 19 or different types combined together. - The
pneumatic structures 1 may be used as cushions as they are or they may be provided with acover 9. The cover may be removable and separately washable, for example. - At this point, reference is simply made to the means necessary in order to control and guarantee pressurisation in the various embodiments. The person skilled in the art will have an adequate knowledge of pressure vessels, valves, lines and control panels.
Claims (9)
1. A pneumatic cushion comprising: an inner pneumatic structure constructed from a casing and webs or a plurality of tubes;
wherein the webs produce a plurality of chambers;
wherein the inner pneumatic structure may be pressurised at a pressure p1; and,
at least one reinforcing and stiffening means is present on or in the pneumatic structure and disposed in such a manner that the pneumatic cushion's dimensional stability is increased.
2. The pneumatic cushion according to claim 1 , wherein the at least one reinforcing and stiffening means consists of a bar, a flexible bar, or a pneumatic web.
3. The pneumatic cushion according to claim 2 , wherein the at least one reinforcing and stiffening means is disposed outside, inside or in the casing, on or in the webs or between two tubes of the plurality of tubes in the inner pneumatic structure.
4. The pneumatic cushion according to claim 3 , wherein the at least one reinforcing and stiffening means is disposed in a chamber of the plurality of chambers and/or pocket formed by a double-walled area of the casing or the webs.
5. The pneumatic cushion according to claim 2 , wherein the flexible bar is bent essentially crossways to its longitudinal axis and thereby becomes buckle-proof.
6. The pneumatic cushion according to claim 2 , wherein the characterised in that the at least one pneumatic web consists of a gas-tight, essentially cigar-shaped hollow body and at least one compression bar lying against the hollow body and can be subjected to a pressure p2, p2>p1.
7. The pneumatic cushion according to claim 6 , wherein the at least one compression bar is flexible and is bent during pressurisation of the hollow body essentially crossways to its longitudinal axis, lying against the hollow body.
8. The pneumatic cushion according to claim 2 , wherein the pneumatic web is disposed in the pneumatic structure in such a manner that it fills a chamber of the plurality of chambers or a pocket in the pressurised state.
9. The pneumatic cushion according to claim 1 , wherein a framework is created from reinforcing and stiffening means, which supports the pneumatic structure from inside or outside.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH9632004 | 2004-06-04 | ||
CH963/04 | 2004-06-04 | ||
PCT/CH2005/000283 WO2005117660A1 (en) | 2004-06-04 | 2005-05-19 | Pneumatic cushions with reinforcing members or braces |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070256243A1 true US20070256243A1 (en) | 2007-11-08 |
Family
ID=34966598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/628,472 Abandoned US20070256243A1 (en) | 2004-06-04 | 2005-05-19 | Pneumatic Cushions with Reinforcing Members or Braces |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070256243A1 (en) |
EP (1) | EP1753323A1 (en) |
WO (1) | WO2005117660A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2748401A (en) * | 1952-06-30 | 1956-06-05 | Hedwin Corp | Extruded flexible and hollow articles and method of making same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB418800A (en) * | 1934-03-29 | 1934-10-31 | Alfred Janisch | Pneumatic mattress |
DE759394C (en) * | 1941-05-22 | 1953-06-08 | Richard Guenther | Air cushioning with inflatable cells for mattresses or the like. |
-
2005
- 2005-05-19 US US11/628,472 patent/US20070256243A1/en not_active Abandoned
- 2005-05-19 EP EP05737643A patent/EP1753323A1/en not_active Withdrawn
- 2005-05-19 WO PCT/CH2005/000283 patent/WO2005117660A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2748401A (en) * | 1952-06-30 | 1956-06-05 | Hedwin Corp | Extruded flexible and hollow articles and method of making same |
Also Published As
Publication number | Publication date |
---|---|
WO2005117660A1 (en) | 2005-12-15 |
EP1753323A1 (en) | 2007-02-21 |
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AS | Assignment |
Owner name: PROSPECTIVE CONCEPTS AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HABEGGER, DANIEL;LUCHSINGER, ROLF;FUCHS, FRITZ;REEL/FRAME:019755/0434;SIGNING DATES FROM 20061207 TO 20061221 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |