GB1229714A - - Google Patents
Info
- Publication number
- GB1229714A GB1229714A GB1229714DA GB1229714A GB 1229714 A GB1229714 A GB 1229714A GB 1229714D A GB1229714D A GB 1229714DA GB 1229714 A GB1229714 A GB 1229714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wall element
- plastics material
- tube
- tube part
- foamable
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/027—Bands, cords, strips or the like for helically winding around a cylindrical object
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
1,229,714. Extruding foam filled sections. S. A. M. AHLQVIST. 13 Nov., 1969 [14 Nov., 1968], No. 55735/69. Heading B5A. [Also in Division F2] A method of manufacturing a tube comprises producing a one-piece wall element containing a tube part 10 and a fastening part 11, the fastening part having a contour which corresponds to that of at least one portion of tube part 10, introducing foamable plastics material into tube part 10, winding the wall element helically, making a joint between adjacent turns of the wall element, and allowing the cellular plastics material to set. In a preferred embodiment the wall element is extruded from plastics material through extruder head 41 (Fig. 4, not shown), and the foamable plastics material is introduced into tube part 10 through a feeding tube (42) as the wall element emerges from the extrusion head. If the foamable plastics material is a thermosetting resin, e.g. a phenolic resin, the wall element is helically wound immediately after the cellular material is introduced. If a thermoplastic material such as foamable polyethylene containing a blowing agent is used, the wall element is heated after the wall element has been helically wound, so as to vaporize the blowing agent. Alternatively a mixture may be inserted which reacts in situ to produce a polyurethane foam with an optional integral skin. The helical joint between fastening part 11 and the left hand lower portion of tube part 10 may be made by means of adhesive, or by passing the interconnected wall elements between heating elements to produce a welded joint.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE15494/68A SE312909B (en) | 1968-11-14 | 1968-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1229714A true GB1229714A (en) | 1971-04-28 |
Family
ID=20300731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1229714D Expired GB1229714A (en) | 1968-11-14 | 1969-11-13 |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS4840910B1 (en) |
| AT (1) | AT309805B (en) |
| BE (1) | BE740702A (en) |
| CA (1) | CA926318A (en) |
| CH (1) | CH498707A (en) |
| DE (1) | DE1955393A1 (en) |
| DK (1) | DK131024B (en) |
| EG (1) | EG9712A (en) |
| ES (1) | ES373440A1 (en) |
| FI (1) | FI49784C (en) |
| FR (1) | FR2023272A1 (en) |
| GB (1) | GB1229714A (en) |
| IL (1) | IL33183A (en) |
| NL (1) | NL6916830A (en) |
| NO (1) | NO135895C (en) |
| SE (1) | SE312909B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329518A (en) * | 2014-10-17 | 2015-02-04 | 烟台方大滚塑有限公司 | Foamed reinforced plastic winding pipe, manufacturing method of foamed reinforced plastic winding pipe and special equipment for foamed reinforced plastic winding pipe |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5016611U (en) * | 1973-06-08 | 1975-02-21 | ||
| US4209043A (en) * | 1977-10-18 | 1980-06-24 | Rib Loc (Hong Kong) Ltd. | Plastic tubular objects |
| FR2464819A1 (en) * | 1979-09-10 | 1981-03-20 | Pont A Mousson | TUBE OF PLASTIC MATERIAL OBTAINED BY WINDING WITH A PROFILE |
| US4908930A (en) * | 1988-04-25 | 1990-03-20 | Essex Composite Systems | Method of making a torsion bar |
| FI82133C (en) * | 1988-08-17 | 1991-01-10 | Kwh Pipe Ab Oy | SPIRALLINDAT ROER. |
| DE102011084195B4 (en) * | 2011-10-10 | 2018-07-05 | BSH Hausgeräte GmbH | Foamed hose line, especially for a vacuum cleaner |
| CN103174887A (en) * | 2013-04-07 | 2013-06-26 | 昆山通塑机械制造有限公司 | Novel plastic steel winding pipe |
-
1968
- 1968-11-14 SE SE15494/68A patent/SE312909B/xx unknown
-
1969
- 1969-01-30 AT AT93469A patent/AT309805B/en not_active IP Right Cessation
- 1969-10-14 IL IL33183A patent/IL33183A/en unknown
- 1969-10-17 NO NO4141/69A patent/NO135895C/no unknown
- 1969-10-18 EG EG559/69*A patent/EG9712A/en active
- 1969-10-23 JP JP44084255A patent/JPS4840910B1/ja active Pending
- 1969-10-23 BE BE740702D patent/BE740702A/xx unknown
- 1969-10-24 DK DK565969AA patent/DK131024B/en unknown
- 1969-10-29 DE DE19691955393 patent/DE1955393A1/en active Pending
- 1969-10-29 FI FI693111A patent/FI49784C/en active
- 1969-11-07 NL NL6916830A patent/NL6916830A/xx not_active Application Discontinuation
- 1969-11-12 ES ES373440A patent/ES373440A1/en not_active Expired
- 1969-11-13 GB GB1229714D patent/GB1229714A/en not_active Expired
- 1969-11-13 FR FR6939073A patent/FR2023272A1/fr not_active Withdrawn
- 1969-11-13 CA CA067399A patent/CA926318A/en not_active Expired
- 1969-11-14 CH CH1695469A patent/CH498707A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329518A (en) * | 2014-10-17 | 2015-02-04 | 烟台方大滚塑有限公司 | Foamed reinforced plastic winding pipe, manufacturing method of foamed reinforced plastic winding pipe and special equipment for foamed reinforced plastic winding pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4840910B1 (en) | 1973-12-03 |
| EG9712A (en) | 1976-11-30 |
| DE1955393A1 (en) | 1970-06-18 |
| CA926318A (en) | 1973-05-15 |
| IL33183A (en) | 1973-06-29 |
| AT309805B (en) | 1973-09-10 |
| FR2023272A1 (en) | 1970-08-07 |
| NO135895C (en) | 1977-06-22 |
| FI49784B (en) | 1975-06-30 |
| DK131024C (en) | 1975-10-27 |
| NL6916830A (en) | 1970-05-19 |
| NO135895B (en) | 1977-03-14 |
| IL33183A0 (en) | 1969-12-31 |
| FI49784C (en) | 1975-10-10 |
| BE740702A (en) | 1970-04-01 |
| CH498707A (en) | 1970-11-15 |
| ES373440A1 (en) | 1972-01-16 |
| SE312909B (en) | 1969-07-28 |
| DK131024B (en) | 1975-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |