CA2624190C - Conduit et methode de formage - Google Patents
Conduit et methode de formage Download PDFInfo
- Publication number
- CA2624190C CA2624190C CA2624190A CA2624190A CA2624190C CA 2624190 C CA2624190 C CA 2624190C CA 2624190 A CA2624190 A CA 2624190A CA 2624190 A CA2624190 A CA 2624190A CA 2624190 C CA2624190 C CA 2624190C
- Authority
- CA
- Canada
- Prior art keywords
- conduit
- bead
- ribbon
- former
- forming
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007789 gas Substances 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000011324 bead Substances 0.000 abstract description 81
- 230000003014 reinforcing effect Effects 0.000 abstract description 34
- 229920000642 polymer Polymers 0.000 abstract description 10
- 229920005601 base polymer Polymers 0.000 abstract description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 28
- 239000010408 film Substances 0.000 description 22
- 239000000463 material Substances 0.000 description 22
- 239000010409 thin film Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000011295 pitch Substances 0.000 description 10
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000013021 overheating Methods 0.000 description 6
- 239000002861 polymer material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 238000011513 continuous positive airway pressure therapy Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
La présente demande porte sur un conduit en polymère mince en ruban spiralé et sur la méthode de formage connexe, par laquelle un bourrelet de renforcement est interposé entre les couches de ruban superposées. La présente porte aussi sur une méthode permettant de former sans interruption un conduit spiralé. Selon cette méthode, une couche sacrificielle, de préférence constituée d'un polymère de base différente de celle du polymère du conduit, est appliquée dans la tubeuse, après quoi on procède au formage du conduit.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ521274 | 2002-09-09 | ||
| NZ52127402 | 2002-09-09 | ||
| NZ52136402 | 2002-09-11 | ||
| NZ521364 | 2002-09-11 | ||
| CA002439762A CA2439762C (fr) | 2002-09-09 | 2003-09-08 | Conduit et methode de formage |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002439762A Division CA2439762C (fr) | 2002-09-09 | 2003-09-08 | Conduit et methode de formage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2624190A1 CA2624190A1 (fr) | 2004-03-09 |
| CA2624190C true CA2624190C (fr) | 2010-04-13 |
Family
ID=39537706
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2624182A Expired - Lifetime CA2624182C (fr) | 2002-09-09 | 2003-09-08 | Conduit et methode de formage |
| CA2624190A Expired - Lifetime CA2624190C (fr) | 2002-09-09 | 2003-09-08 | Conduit et methode de formage |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2624182A Expired - Lifetime CA2624182C (fr) | 2002-09-09 | 2003-09-08 | Conduit et methode de formage |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2624182C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2496137B (en) | 2011-11-01 | 2015-09-02 | Iti Scotland Ltd | Tubular bodies and methods of forming same |
-
2003
- 2003-09-08 CA CA2624182A patent/CA2624182C/fr not_active Expired - Lifetime
- 2003-09-08 CA CA2624190A patent/CA2624190C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2624182A1 (fr) | 2004-03-09 |
| CA2624182C (fr) | 2010-08-03 |
| CA2624190A1 (fr) | 2004-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210016043A1 (en) | Conduit and method of forming | |
| AU2004233457B2 (en) | Conduit and method of forming | |
| CA2685020C (fr) | Conduits et procede de fabrication | |
| CA2624190C (fr) | Conduit et methode de formage | |
| AU2007214363B2 (en) | Conduit and Method of Forming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20230908 |