GB2186655A - Hollow profile member - Google Patents

Hollow profile member Download PDF

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Publication number
GB2186655A
GB2186655A GB08702959A GB8702959A GB2186655A GB 2186655 A GB2186655 A GB 2186655A GB 08702959 A GB08702959 A GB 08702959A GB 8702959 A GB8702959 A GB 8702959A GB 2186655 A GB2186655 A GB 2186655A
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GB
United Kingdom
Prior art keywords
profile member
hollow profile
hollow
reinforcement element
member according
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.)
Withdrawn
Application number
GB08702959A
Other versions
GB8702959D0 (en
Inventor
Hubert Moller
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8702959D0 publication Critical patent/GB8702959D0/en
Publication of GB2186655A publication Critical patent/GB2186655A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/28—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of materials not covered by groups E04C3/04 - E04C3/20
    • 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
    • F16L9/003—Rigid pipes with a rectangular cross-section

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

This invention relates to a hollow profile member produced of a plastic- fiber-mixture and having one or a plurality of hollow chambers extending in the longitudinal direction of the hollow profile member, wherein into the wall of the hollow profile member a reinforcement element 3 of an inextensible material is embedded. In order to create a hollow profile member which is capable to withstand a high inner pressure and which has a very low weight as the reinforcement element 3 a flat tape like reinforcement element is used wherein the tape like reinforcement clement is provided with perforations or through holes 6a, 6b and wherein at the opposing ends of the reinforcement element interengaging projections 7 are formed so that no interruptions within the reinforcement element is created. The hollow profile member can be used as a cold water tubing or a hot water tubing if at least the inner wall of the hollow chamber of the hollow profile member is covered with a blocking layer 4 for blocking gases. The blocking layer 4 may be an ethylene-vinyl alcohol co-polymer. The plastic-fibre material may be P.V.C.-wood. The element 3 may be apertured metal sheet, wire grid or coarse mesh textile. The member may be incorporated into balconies or floors. <IMAGE>

Description

SPECIFICATION Hollow profile member This invention relates to a hollow profile member made of a plastic-fiber-mixture and having one or several hollow chambers extending in the longitudinal direction of the hollow profile member, wherein at least into the outer wall the hollow profile member a reinforcement element of an in-extensible material is embedded so to extend over the whole length of said hollow profile member.
In the German Patent Application P 35 07 640.2 a method is described for producing reinforced profile members according to which at first a hollow profile member having one or several hollow chambers is produced according to an extrusion process and then into said at least one hollow chamber of the hollow profile member a reinforcing hardenable plastic filling is introduced and simultaneously with the introduction of the lastic filling at least one reinforcement element of an in-extensible material and extending over the whole length of the profile member is embedded. The material of the plastic filling can be comprised of a plastic-wood fiber mixture so that the profile member has a reduced weight.
In order to obtain a fixed mounting position of the reinforcement element within the plastic-filling said reinforcement element can be provided with corrugations or grooves at the outer surface thereof which are extending in a direction transversely to the longitudinal direction of the reinforcement element.
Furthermore at least one reinforcement element is provided within the profile member in such a position that with a bending stress acting on the profile member transversely to the longitudinal direction thereof said reinforcement element is subjected to a tensile load.
With this specific performance of the profile member the bending resistance of the profile member can be substantially improved so that such profile members can be used to form balconies producing balcony floors, but also to construct floor coverings.
However, such profile members can still not be used to conduct a liquid or gas like fluid within the interior thereof which is kept on a relatively high pressure.
From the DE-OS 28 27 851 a building profile member is known in particular a profile member for producing window frames with which the hollow profile member is comprised of a thermoplastic material like PVC and into the hollow chambers of the hollow profile members a filling including a plastic-matrix is introduced. The basical feature of this known building-profile member consists in that the said filling comprises a matrix of methylmetacrylate including hollow silicate balls as filling material. Such a building profile member can also be performed such that into the filling threads in particular glass threads are em bedded in the longitudinal direction.
From GB-PS 12 98 823 a method for pro ducing a profile member is known with which over the cross section of the profile member two different types of plastics are provided so that an outer layer is comprised of a thermo plastic material whereas the inner core is comprised of a duro plastic. However, a reinforce ment element is not used with this known profile member.
It is therefore an object of the present invention to provide a hollow profile member made of a plastic-fiber mixture which has especially a low weight and can easily be manufactured and is capable to withstand a high inner pressure and wherein such hollow profile member should also have excellent thermal insulation characteristics.
Starting out from the hollow profile member made from a plastic-fiber mixture as defined at the beginning of the specification the said object is solved according to the invention in that a) said plastic-fiber mixture is comprised of a plastic-wood fiber mixture, b) the reinforcement element is comprised of a flat, tape like reinforcement material, c) the tape like reinforcement material is provided with through holes, and d) the opposing ends of the tape like reinforcement material are provided with interen gaging projections.
By using the plastic-fiber mixture in the form -of a plastic-wood fiber mixture the whole weight of the hollow profile member can be kept comparatively low.
By the use of a flat tape like reinforcement element a substantial mechanical reinforcement of the hollow profile member in particular of the outer walls of the hollow profile member is obtained wherein an intimate connection between the material of the hollow profile mem ber and the reinforcement element is achieved by the through holes which are provided in a great number within the reinforcement ele ment. These through holes can have any de sired shape that means they can be rectangu lar, slot like or circular.
As tape like reinforcement element a basis material is used which is extending in one plane. This tape like reinforcement material is then bent into the cross section shape of the corresponding hollow profile member so that with necessity the two ends (end portions) are opposing each other so that at this point of the reinforcement element an interruption is created based on the manufacturing method.
In order to effectively cancel this interruption according to the present invention the oppos ing ends of the tape like reinforcement ma terial are provided with interengaging projec tions so that also at the end portions of the reinforcement element no interruptions of the reinforcement action is created.
Very manifold application possibilities are resulting if a blocking layer for blocking gases is provided at the inner wall surface of the at least one hollow chamber. The hollow profile member can then be used for example as a tubing for supplying gases or liquids wherein also high inner pressures are possible.
Furthermore an improved embodiment of the present invention consists in that also the outer surface of the hollow profile member is provided with a blocking layer for blocking gases. These blocking layers can be comprised for example of anethylenvinylalcohol-copolymer (EVOH). This specific new plastic material which has the trade name CLARENE" (trade mark) has excellent blocking characteristics against 02, CO, and further gases. Such copolymerisates can in particular be used for the coextrusion of foils, tubings-in combination with polyolefines, polyesters and other plastics.
This specific plastic has a very high blocking action against dry gases, can be easily machined and is resistant against greases, oils and a great number of chemical substances, is also resistant against UV radiation, has a very small electrostatical charge and is physiologically harmless.
A hollow profile member which is covered by such a blocking layer (within the interior and/or on the outside) therefore can be used as a cold water tubing and a hot water tubing and additionally such hollow profile member has also an excellent thermic isolation capability.
The hollow profile member can have a rectangular cross section including a plurality of juxtaposed hollow chambers or it can have a circular cross section having a single hollow chamber or can have a plurality of hollow/chambers which are separated by partitions.
The reinforcement element can be comprised of a sheet respectively sheet metal element which is provided with a plurality of through holes or borings.
The reinforcement element can also be comprised of a wire grid or can be comprised of a textile good.
The material of the reinforcement element can be comprised of different metals, metal alloys or also of a particular hard plastic material having a small extensibility.
An additional reinforcement of the hollow profile member against bending forces can be obtained by embedding into the wall of the hollow profile member additional fiber like or thread like reinforcement elements. The plastic of the plastic-wood fiber mixture can suitably be comprised of polyvinylchloride (PVC).
In order that the invention may be fully understood an embodiment will be described by way of example and with reference to the accompaning drawings, in which: Fig. 1 is an end view of a rectangular hollow profile member in accordance with the invention; and Fig. 2 a partial view of a reinforcement element which is used in the hollow profile member according to Fig. 1.
In Fig. 1 a hollow profile member according to the present invention is commonly designated with reference number 1 and this hollow profile member has a rectangular cross section. The material of the hollow profile member is comprised of a plastic-wood fiber mixture 2 and into this material a reinforcement element 3 is embedded which has been prefabricated before manufacturing the hollow profile member from a flat sheet member.
With the shown embodiment the inner wall surface of the hollow profile member is provided with a blocking layer 4 for blocking gases, wherein this blocking layer can be formed afterwards for example by conducting a blocking material in a liquid form through the hollow profile member so that a layer is formed on the inner wall surface which is then hardened or by producing the blocking layer 4 with application of the coextrusion process.
It should be referred to the fact that in order to obtain a common protection against corrosion also on the outer surface of the hollow profile member a further blocking layer (not shown) can be provided. With this last mentioned embodiment the material of the hollow profile member is enclosed from all sides by a protecting blocking layer.
The plastic material of the used plastic-fiber mixture can be comprised for example of polyvinylchloride, whereas the fibers can be comprised of wood fibers which have a length in the order of 0,5 to 5 mm.
In Fig. 2 the end portion of the reinforcement element is shown in a side view wherein this end portion is designated with reference number 5 in Fig. 1. At said end portion the two ends 5a and 5b of the reinforcement element 3 are opposing one the other. In order to avoid that with this opposing area an interruption of the reinforcing action is created the said ends 5a and 5b are provided with projections 7, respectively, wherein between these projections semicircular recesses are performed. Thus the possibility is created that the projections can cam like interengage one into the other so that no interruption of the reinforcement element is created.
With the embodiment shown the reinforce ment element is comprised of a sheet member having a plurality of openings or holes 6a, which are arranged in a predetermined level (lines) one above the other and having also openings or holes 6b (at the other end 5b) which are arranged on a different level with espect to the openings 6a also in a plurality of superimposed lines.
With the embodiment shown the openings 6a and 6b are circular shaped. However, these openings can also have a rectangular shape, a slot like shape or a star like shape etc.
As a reinforcement element suitably a byproduct can be used which is remaining with the production of washers which are produced by punching. The only presupposition consists in that the punching holes must be provided into the sheet along a plurality of lines which are displaced one towards the other in longitudinal direction so that automatically end portions are created which have the projections 7 and which are separated by semicircular recesses one from the other.
By the displaced arrangement of the projections 7 at the one end portion 5a opposite to the projections at the other end portion 5b the two ends 5a and 5b can be put together so that the respective projections on the one end are projecting cam like into the recesses at the opposing end portion 5b. Thus into the material of the hollow profile member a reinforcement element can be embedded such that no interruption within the reinforcement element is created.
The reinforcement element 3 can be produced as well from a sheet menmber as for example an aluminium sheet, copper sheet, iron sheet, but also in case of a desired high quality of steel sheet.
Furthermore there exists also the possibility to produce the reinforcement element 3 from a wire fabric or a wire sieve. A further possibility consists in that to produce the reinforcement element from a coarse mesh textilegood.
It should be referred to the fact that with using a non extensible material for the reinforcement element in each case a basical increase of the stiffness of the hollow profile member will be obtained if the reinforcement element-as can be seen from the embodiment-is embedded at a position within the material of the hollow profile member so that the reinforcement element is tensil loaded with a bending force acting on the hollow profile member.
A further embodiment consists in that a further fiber like or thread like re-inforcement element is additionally embedded into the material of the hollow profile member (for example into the partitions) wherein this fiber like or thread like reinforcement element can also be comprised of twisted fibers or twisted threads.
Tests have shown that a hollow profile member performed according to the present invention can withstand a very high inner pressure and is equivalent to aniron tubing.
Therefore the hollow profile member according to the present invention can be used as a cold water tubing or as a hot water tubing or as a combination hot and cold water tubing.
According to a preferred embodiment (not shown) the hollow chamber provided for transporting the cold water can be separated from the hollow chamber of the tubing for the hot water by a further interposed hollow chamber so that an extremely effective thermic isolation between cold water and hot water can be realized.
A lot of changes and embodiments are obvious for a man skilled in the art without leaving the scope of the present invention. There exists the possibility to perform the hollow profile member as a multi-tubing having a circular cross section, respectively, wherein the individual tubings are connected together by a single connecting wall so that the possibility is created to separate individual tubings with laying of the multi-tubing by cutting through the connecting wall between two tubings.

Claims (14)

1. A hollow profile member formed of a plastic-fiber mixture having one or a plurality of hollow chambers extending in the longitudinal direction of the hollow profile member wherein at least into the outer wall of the hollow profile member a reinforcement element of an inextensible material and extending over the whole length of the hollow profile member is embedded, comprising the features of a) said plastic-fiber mixture is comprised of a plastic-wood fiber mixture (2), b) said reinforcement element (3) is comprised of a flat, tape like reinforcement material, c) said tape like reinforcement material (3) is provided with through holes (6a, 6b), d) the opposing end portions (5a, 5b) of said tape like reinforcement material (3) are provided with inter-engaging projections (7).
2. A hollow profile member according to claim 1 in which on the inner wall of said at least one hollow chamber a blocking layer (4) for blocking gases is provided.
3. A hollow profile member according to claim 1 or 2, wherein on the outer surface of said hollow profile member (1) a blocking layer for blocking gases is provided.
4. A hollow profile member according to claim 2 or 3, wherein said blocking layer (4) is comprised of a ethylen-vinylalcohol-copolymer.
5. A hollow profile member according to one of the preceding claims, wherein said hollow profile member (1) has a rectangular cross section.
6. A hollow profile member according to claim 5, wherein said hollow profile member (1) is formed by two hollow chambers which are separated by a partition one from the other.
7. A hollow profile member according to one of claims 1 to 4, wherein said hollow profile member has a circular cross-section.
8. A hollow profile member according to one of the preceding claims, wherein said reinforcement element (3) is comprised of a sheet member having a plurality of through holes or borings (6a, 6b).
9. A hollow profile member according to one of claims 1 to 7, wherein said reinforce ment element (3) is comprised of a wire grid.
10. A hollow profile member according to one of claims 1 to 7, wherein said reinforcement element (3) is comprised of a textilegood.
11. A hollow profile member according to one of the preceding claims, wherein into the wall of said hollow profile member (1) additonally a fiber like or thread like reinforcement element is embedded.
12. A hollow profile member according to one of the preceding claims, wherein the plastic material of said plastic-wood fiber mixture is comprised of polyvinylchloride (PVC).
13. A hollowprofile member according to one of the preceding claims, wherein said hollow profile member is used as a cold water and hot water tubing.
14. A hollow profile member according to claim 1, substantially as described in conjunction with the accompanying drawing.
GB08702959A 1986-02-18 1987-02-10 Hollow profile member Withdrawn GB2186655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863605066 DE3605066C1 (en) 1986-02-18 1986-02-18 Hollow profile made of a plastic-fiber mixture

Publications (2)

Publication Number Publication Date
GB8702959D0 GB8702959D0 (en) 1987-03-18
GB2186655A true GB2186655A (en) 1987-08-19

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ID=6294335

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Application Number Title Priority Date Filing Date
GB08702959A Withdrawn GB2186655A (en) 1986-02-18 1987-02-10 Hollow profile member

Country Status (3)

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DE (1) DE3605066C1 (en)
FR (1) FR2594521A1 (en)
GB (1) GB2186655A (en)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220013A (en) * 1988-05-27 1989-12-28 Caledonian Cables Limited Plastics, extruded post
WO1992002696A1 (en) * 1990-08-07 1992-02-20 West, Peter Plastic flat pack roofing system
EP0586213A1 (en) * 1992-09-01 1994-03-09 Andersen Corporation Polymer and wood fibre composite structural member
EP0607805A1 (en) * 1993-01-18 1994-07-27 Karl Moser Moulded wooden beam and method for manufacturing the same
US5441801A (en) 1993-02-12 1995-08-15 Andersen Corporation Advanced polymer/wood composite pellet process
US5486553A (en) 1992-08-31 1996-01-23 Andersen Corporation Advanced polymer/wood composite structural member
WO1997049877A1 (en) * 1996-06-22 1997-12-31 Gerhard Dingler Structural member
US5827607A (en) 1992-08-31 1998-10-27 Andersen Corporation Advanced polymer wood composite
US5847016A (en) 1996-05-16 1998-12-08 Marley Mouldings Inc. Polymer and wood flour composite extrusion
US5948524A (en) 1996-01-08 1999-09-07 Andersen Corporation Advanced engineering resin and wood fiber composite
US6004668A (en) 1992-08-31 1999-12-21 Andersen Corporation Advanced polymer wood composite
US6011091A (en) 1996-02-01 2000-01-04 Crane Plastics Company Limited Partnership Vinyl based cellulose reinforced composite
US6344268B1 (en) 1998-04-03 2002-02-05 Certainteed Corporation Foamed polymer-fiber composite
US6344504B1 (en) * 1996-10-31 2002-02-05 Crane Plastics Company Limited Partnership Extrusion of synthetic wood material
GB2376039A (en) * 2001-05-22 2002-12-04 Ravenscroft Plastics Ltd Cavity closure
US6632863B2 (en) 2001-10-25 2003-10-14 Crane Plastics Company Llc Cellulose/polyolefin composite pellet
US6637213B2 (en) 2001-01-19 2003-10-28 Crane Plastics Company Llc Cooling of extruded and compression molded materials
US6662515B2 (en) 2000-03-31 2003-12-16 Crane Plastics Company Llc Synthetic wood post cap
US6708504B2 (en) 2001-01-19 2004-03-23 Crane Plastics Company Llc Cooling of extruded and compression molded materials
US6780359B1 (en) 2002-01-29 2004-08-24 Crane Plastics Company Llc Synthetic wood composite material and method for molding
US7743567B1 (en) 2006-01-20 2010-06-29 The Crane Group Companies Limited Fiberglass/cellulosic composite and method for molding
US7913960B1 (en) 2007-08-22 2011-03-29 The Crane Group Companies Limited Bracketing system
US8074339B1 (en) 2004-11-22 2011-12-13 The Crane Group Companies Limited Methods of manufacturing a lattice having a distressed appearance
US8167275B1 (en) 2005-11-30 2012-05-01 The Crane Group Companies Limited Rail system and method for assembly
GB2487221A (en) * 2011-01-14 2012-07-18 Stuart Middlehurst Metal reinforcement member for hollow window frames
US8460797B1 (en) 2006-12-29 2013-06-11 Timbertech Limited Capped component and method for forming
US9109118B2 (en) 2008-01-15 2015-08-18 RheTech, Inc. Cellulosic inclusion thermoplastic composition and molding thereof

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DE4240364C1 (en) * 1992-12-01 1994-05-11 Fichtel & Sachs Ag Impact-damper with sliding tubes for vehicles - has tubes with evenly spaced openings and coated with elastic material on inside and outside
US5866264A (en) 1996-10-22 1999-02-02 Crane Plastics Company Limited Partnership Renewable surface for extruded synthetic wood material
US6117924A (en) 1996-10-22 2000-09-12 Crane Plastics Company Limited Partnership Extrusion of synthetic wood material
US5827462A (en) 1996-10-22 1998-10-27 Crane Plastics Company Limited Partnership Balanced cooling of extruded synthetic wood material
US6180257B1 (en) 1996-10-29 2001-01-30 Crane Plastics Company Limited Partnership Compression molding of synthetic wood material
AU2715100A (en) 1998-12-28 2000-07-31 Crane Plastics Company Limited Partnership Cellulosic, inorganic-filled plastic composite
DE10028802A1 (en) * 2000-06-15 2001-12-20 Helmut Over Profile for use in double glazing unit has cavities on cold and warm sides connected by narrow central section which reduces heat transfer by conduction

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SE324235B (en) * 1968-11-29 1970-05-25 Sonesson Plast Ab
DE2105120A1 (en) * 1971-02-04 1972-08-10 Battelle Institut E V Metal wire reinforced plastic tubing - with multi layer embedded sheath/braiding
FR2203044B1 (en) * 1972-10-12 1976-11-19 Battelle Memorial Institute
DE2827851A1 (en) * 1978-06-24 1980-03-27 Schock & Co Gmbh CONSTRUCTION PROFILE BAR, ESPECIALLY PROFILE BAR FOR THE PRODUCTION OF WINDOW FRAMES
DE3507640A1 (en) * 1985-03-05 1986-09-11 Hubert 5778 Meschede Möller METHOD FOR PRODUCING REINFORCED PROFILE PARTS

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220013A (en) * 1988-05-27 1989-12-28 Caledonian Cables Limited Plastics, extruded post
WO1992002696A1 (en) * 1990-08-07 1992-02-20 West, Peter Plastic flat pack roofing system
US5539027A (en) 1992-08-31 1996-07-23 Andersen Corporation Advanced polymer/wood composite structural member
US6015611A (en) 1992-08-31 2000-01-18 Andersen Corporation Advanced polymer wood composite
US5486553A (en) 1992-08-31 1996-01-23 Andersen Corporation Advanced polymer/wood composite structural member
US6015612A (en) 1992-08-31 2000-01-18 Andersen Corporation Polymer wood composite
US5932334A (en) 1992-08-31 1999-08-03 Andersen Corporation Advanced polymer wood composite
US6004668A (en) 1992-08-31 1999-12-21 Andersen Corporation Advanced polymer wood composite
US5827607A (en) 1992-08-31 1998-10-27 Andersen Corporation Advanced polymer wood composite
US5406768A (en) 1992-09-01 1995-04-18 Andersen Corporation Advanced polymer and wood fiber composite structural component
US5497594A (en) 1992-09-01 1996-03-12 Andersen Corporation Advanced polymer and wood fiber composite structural component
EP0586213A1 (en) * 1992-09-01 1994-03-09 Andersen Corporation Polymer and wood fibre composite structural member
EP0607805A1 (en) * 1993-01-18 1994-07-27 Karl Moser Moulded wooden beam and method for manufacturing the same
US5695874A (en) 1993-02-12 1997-12-09 Andersen Corporation Advanced polymer/wood composite pellet process
US5518677A (en) 1993-02-12 1996-05-21 Andersen Corporation Advanced polymer/wood composite pellet process
US5441801A (en) 1993-02-12 1995-08-15 Andersen Corporation Advanced polymer/wood composite pellet process
US5948524A (en) 1996-01-08 1999-09-07 Andersen Corporation Advanced engineering resin and wood fiber composite
US6011091A (en) 1996-02-01 2000-01-04 Crane Plastics Company Limited Partnership Vinyl based cellulose reinforced composite
US5847016A (en) 1996-05-16 1998-12-08 Marley Mouldings Inc. Polymer and wood flour composite extrusion
US6066680A (en) 1996-05-16 2000-05-23 Marley Mouldings Inc. Extrudable composite of polymer and wood flour
WO1997049877A1 (en) * 1996-06-22 1997-12-31 Gerhard Dingler Structural member
US6505454B2 (en) 1996-06-22 2003-01-14 Gerhard Dingler Structural member
US6498205B1 (en) 1996-10-31 2002-12-24 Crane Plastics Company Limited Partnership Extrusion of synthetic wood material using thermoplastic material in powder form
US6344504B1 (en) * 1996-10-31 2002-02-05 Crane Plastics Company Limited Partnership Extrusion of synthetic wood material
US6344268B1 (en) 1998-04-03 2002-02-05 Certainteed Corporation Foamed polymer-fiber composite
US6662515B2 (en) 2000-03-31 2003-12-16 Crane Plastics Company Llc Synthetic wood post cap
US6637213B2 (en) 2001-01-19 2003-10-28 Crane Plastics Company Llc Cooling of extruded and compression molded materials
US6708504B2 (en) 2001-01-19 2004-03-23 Crane Plastics Company Llc Cooling of extruded and compression molded materials
GB2376039A (en) * 2001-05-22 2002-12-04 Ravenscroft Plastics Ltd Cavity closure
US6632863B2 (en) 2001-10-25 2003-10-14 Crane Plastics Company Llc Cellulose/polyolefin composite pellet
US6780359B1 (en) 2002-01-29 2004-08-24 Crane Plastics Company Llc Synthetic wood composite material and method for molding
US8074339B1 (en) 2004-11-22 2011-12-13 The Crane Group Companies Limited Methods of manufacturing a lattice having a distressed appearance
USD785199S1 (en) 2005-11-30 2017-04-25 Cpg International Llc Rail
USD797953S1 (en) 2005-11-30 2017-09-19 Cpg International Llc Rail assembly
US8167275B1 (en) 2005-11-30 2012-05-01 The Crane Group Companies Limited Rail system and method for assembly
US10358841B2 (en) 2005-11-30 2019-07-23 Cpg International Llc Rail system and method for assembly
USD809157S1 (en) 2005-11-30 2018-01-30 Cpg International Llc Rail
USD807527S1 (en) 2005-11-30 2018-01-09 Cpg International Llc Rail
USD782697S1 (en) 2005-11-30 2017-03-28 Cpg International Llc Rail
USD782698S1 (en) 2005-11-30 2017-03-28 Cpg International Llc Rail
USD784559S1 (en) 2005-11-30 2017-04-18 Cpg International Llc Rail
US9822547B2 (en) 2005-11-30 2017-11-21 Cpg International Llc Rail system and method for assembly
USD787707S1 (en) 2005-11-30 2017-05-23 Cpg International Llc Rail
USD788329S1 (en) 2005-11-30 2017-05-30 Cpg International Llc Post cover
USD797307S1 (en) 2005-11-30 2017-09-12 Cpg International Llc Rail assembly
US7743567B1 (en) 2006-01-20 2010-06-29 The Crane Group Companies Limited Fiberglass/cellulosic composite and method for molding
US8460797B1 (en) 2006-12-29 2013-06-11 Timbertech Limited Capped component and method for forming
US7913960B1 (en) 2007-08-22 2011-03-29 The Crane Group Companies Limited Bracketing system
US9109118B2 (en) 2008-01-15 2015-08-18 RheTech, Inc. Cellulosic inclusion thermoplastic composition and molding thereof
GB2487221A (en) * 2011-01-14 2012-07-18 Stuart Middlehurst Metal reinforcement member for hollow window frames

Also Published As

Publication number Publication date
FR2594521A1 (en) 1987-08-21
DE3605066C1 (en) 1987-08-13
GB8702959D0 (en) 1987-03-18

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