WO2009074694A1 - Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular - Google Patents
Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular Download PDFInfo
- Publication number
- WO2009074694A1 WO2009074694A1 PCT/ES2007/070210 ES2007070210W WO2009074694A1 WO 2009074694 A1 WO2009074694 A1 WO 2009074694A1 ES 2007070210 W ES2007070210 W ES 2007070210W WO 2009074694 A1 WO2009074694 A1 WO 2009074694A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- preform
- heating
- preform tube
- tubes
- molecular orientation
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/023—Half-products, e.g. films, plates
- B29B13/024—Hollow bodies, e.g. tubes or profiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
- F27B9/2423—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace) the charge rotating about an axis parallel to the axis of advancement of the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Definitions
- the field of application of the invention is encompassed within the manufacturing processes of tubular profiles or molecularly oriented plastic tubes and in particular of discontinuous or "in-batch" systems.
- the present invention relates to an installation and the corresponding method for the adaptation of initial pipes or preforms for
- the object of the invention consists of a system for preparing the preform pipes that must be introduced into the mold for subsequent molecular orientation, so that they are heated to the specific molecular orientation temperature, with the maximum regularity and homogeneity of thicknesses, always in a gaseous medium and very quickly and economically, by means of the installation and the manufacturing method of this invention.
- the installation is mainly based on a specially designed oven, which incorporates a series of accessories both internally and externally, which allow adequate convection of air, a movement inside the pipes and adequate control systems, optimizing both the process time and the thermal homogeneity of the pipes.
- Molecular biorientation is a process by which, by applying a mechanical deformation to a previously extruded tube or proforma under suitable conditions of temperature, pressure, strain rate and deformation radius mainly, a substantial modification of its mechanical properties occurs, mainly The sigma (or tension) of the material, the resistance to impact, improvement of creep (or thermofluence), resistance to the propagation of cracks, improvement of Young's modulus, etc.
- This document includes a continuous work process, from the extrusion to the previous step to the orientation.
- the tube that has been extruded and cooled slightly to facilitate its cutting, is cut in suitable lengths and introduced into a hot water tank, around 100 0 C, which acts as a cooling vehicle and temper the pipe by lowering its temperature.
- the tempering system is a water tank, where pipes are stored for a certain time until they are removed from the tank and used.
- the main characteristics of this method are that the system works in a continuous process (the treatment takes place in a tube immediately after its extrusion and therefore the tube is at a high temperature), and the guillotine cutting system acts on that hot tube and in a plastic state.
- the water tank incorporates a support for the pipes to be cooled at a specific and unique temperature in the container, and an axial current of the water is created by means of pumps, and an oscillating movement to improve the thermal transfer.
- This system has the following disadvantages:
- the pieces that are being treated support each other, in an uncontrolled way, and with an irregular flow, so that the homogeneity of temperature in the thicknesses is not guaranteed, or is guaranteed but with excessive residence times,
- the installation of the invention comprises a feeder in which the plastic tubes or tubular profiles are located at room temperature and a special oven for dry and air heating of said tubes, from room temperature to temperature of orientation.
- This oven has the possibility of allowing access from all directions, although preferably it is proposed that the proforma tubes enter axial direction and for simplicity at the same level they remain when they are being heated.
- the loss of hot air is negligible, unlike the installation object of the patent application WO 98/13182, which does not allow this multiple access and the openings are much greater, being also in this case the fluid that escapes water vapor, More energetic and problematic.
- the oven preferably has internal displacement systems, through which the preform tubes are advanced step by step and transverse between one-to-one rotating supports, until the exit.
- the number of steps or supports that exist in the oven will depend on the desired residence time for the tubes to be manufactured.
- the mentioned rotary supports of the tubes consist of two parallel groups of longitudinal, spaced and motorized rollers, arranged in a way and so that while the preformed tube is supported, these rollers revolve around their axial axis and by contact make the tubes rotate preform leaning on. This continuous movement guarantees from the first moment and throughout the whole process the circumferential thermal homogeneity.
- One of the fundamental parts of the oven consists of an internal air convection system, whose main parts are: powerful fans that move the air at high speed, a system of baffles that print to the air flow the appropriate direction to optimize Ia thermal transmission, and a system of probes, controls and resistances that allow to create within the enclosure areas with temperatures and differential parameters with respect to its adjoining ones.
- the areas of one of the ends of the tubes can be heated more, in the case of wanting to differentiate the temperature from the rest of the tube, for example if the mold performs the integrated mouth, and conditions are required of different orientation.
- This induced longitudinal temperature difference does not imply any contradiction with the fundamental fact that this oven is designed to guarantee a very high and improved thermal homogeneity with respect to the invention described in the previous section in which it refers to the distribution of temperatures in the circumferential thickness of the tube.
- a blowing system formed by axial air projectors can be added, which axially introduces the hot air inside the tube preforms, increasing the thermal efficiency and the transmission through the inner walls of the tube.
- the heating procedure consists of the following phases:
- a rotation about its axial axis is printed on the preform tube during a time interval in a section of the furnace, followed by its transverse displacement to another parallel section, in that the rotation and transverse displacement are carried out consecutively until the exit of the preform tube to obtain a homogenization of its circumferential temperature and its thickness.
- the heating process is carried out uniformly with different temperatures in different areas along the length of the preform tube, especially in the mouth.
- This heating process is valid for preformed tubes of polymeric material, both for those of greater size and for those of lower density than that of water.
- Figure 1. Shows a plan view in which the oven feeder and the oven are observed with a partial cut.
- Figure 2. Shows a view of an axial section of said furnace represented in Figure 1 according to the cut-off plane AA, where the various equipments that make up this furnace are observed, as well as the main air flows, in which the fans They are located in the upper position and the flow of hot air is directed from the top down.
- Figures 3A to 3D.- Shows a sectional view of the oven according to A-A in which four sequences of the movement of the tubes in their process of advancement within the oven are appreciated.
- Figure 4. It shows a sectional view of the oven, in case you incorporate the fan in the lower position and the baffles are arranged in such a way that the flow of hot air is directed from the bottom up.
- a feeder (14) in which the preform tubes (11) are located at room temperature, and - an air oven (8) to which the preform tubes (11) arrive from the feeder (14) in which dry heating of the preform tubes (1 1) is carried out until a uniform temperature is reached in its thickness, for its subsequent discharge and direction towards the mold, not shown, in which it is carried out its molecular biorientation.
- the oven (8) generally incorporates:
- transverse displacement means located in parallel arrangement on which the preform tubes (1 1) support and rotate for homogeneous circumferential heating
- transverse displacement means (5, 6) that facilitate the elevation of the preform tubes (1 1) and its displacement in the transverse direction to favor progressive and uniform heating throughout the thickness of the preform tube (1 1)
- heating current generating sets (15, 10, 2) formed by resistors (15), fans ( 10) and baffles (2) distributed longitudinally in sectors or quadrants inside the oven (8) for heating the air and its distribution on the preform tube (1 1).
- Each of the rotating supports (3) basically comprises two parallel groups of spaced and motorized longitudinal rollers (20), as can be seen in Figure 1.
- furnace (8) can have means for axial displacement of inlet (4) and outlet (4 '), represented in Figure 2 for example, to facilitate the entry and / or exit of the tubes preform (1 1), which preferably comprise motorized transverse rollers (21), of conical preferred configuration.
- the transverse displacement means (5, 6) comprise a tray (6), and translation supports (5) fixed to the tray (6) and located in correspondence with the spaces between longitudinal rollers (20) and between transverse rollers (21) for lifting the preform tubes (1 1) and moving in a transverse direction towards and / or from a rotating support (3).
- the oven (8) is equipped with a thermally insulated double wall metal housing that borders the heated enclosure, with side or front and rear access for lateral or axial feeding, showing in figure 1 a door (13) for entry and exit axial in correspondence with the accesses, and whose opening is preferably vertical, but could be horizontal.
- the preform tube (1 1) can enter axially thanks to the transverse rollers (21), which cause the preform tube (11) to enter or exit the oven (8) when rotating in one or other sense.
- Each of the rows of longitudinal rollers (20) of the rotating support (3) serve discontinuously as support for the preform tube (11) to be treated, along two of its generatrices as shown in Figure 2.
- By contact turning these longitudinal rollers (20) causes a rotation in the preform tube (11) that rests on it.
- the preform tube (1 1) rotates on the longitudinal rollers (20) that are below the line of the contact generatrices of the preform tube (1 1).
- both the tray (6) and the translation supports (5) that are in solidarity, they rise above this generatrix and support the preform tube (1 1), then move perpendicularly, and lower until the preform tube (1 1) rests on another rotating support (3) closer to the outlet.
- the preform tubes (11) While the preform tubes (11) are supported on the rotating longitudinal rollers (20), the preform tubes (1 1) rotate and are affected by the hot air stream (1) as seen in Figures 2 or 3, driven by the fans (10), driven by their respective motors (9) and which is heated by the resistors (15) housed at the fan outlet (10).
- the activation of these resistors (15) is controlled by conveniently located pyrometric detectors (17).
- This stream of hot air (1) is directed by means of baffles (2), which normally lead the fluid to the preform tube (1 1) with minimal loss of load, allowing an optimal distribution to achieve maximum thermal homogeneity and heating rate in the operating quadrant.
- the fans (10) are located in the upper position, and the heated air is projected by means of the baffles (2) on the preform tubes (11) from the bottom up.
- the fans (10) are placed in a lower position and the hot air is conducted by means of the baffles (2) from top to bottom for projection on the preform tubes (11).
- furnace (8) incorporates axial air projectors (16) represented in Figure 1, which generate a secondary secondary air current to the preform tube (1 1) that is introduced through the interior of the latter by heating its face internal
- the baffles (2) and fans (10) create semi-dry air currents, which allow differentiating and controlling temperatures in the different quadrants.
- the resistors (15) are also located in two areas and controlled by the pyrometric detectors (17) to achieve adequate regulation. These zones are represented by way of example in Figure 1, where the zones of different temperatures are observed with denominations 1A and 1 B, 2A and 2B, etc., up to NA and NB, N being equal to the number of fans plus one.
- the preform tube movement process is represented in Figures 3A to 3D.
- Figure 3A shows that the preform tube (1 1) penetrates the oven (8) with the help of the transverse rollers (21) to the bottom of the oven (8). At that time the translation tray (6) with its translation supports (5) is in the lower position. From that moment on,
- the translation tray (6) rises and the translation supports (5), which are located in correspondence with the discontinuities of the roller lines (20, 21) raise the preform tubes (1 1) by suspending them in a vacuum as see in Figure 3B.
- the tray (6) which is in the lower position, then moves to its starting position with transverse movement to a new operation. From then on the longitudinal rollers (20) begin to rotate and therefore the preform tubes (1 1) resting on top, continuing their heating cycle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK07858294.7T DK2233269T3 (da) | 2007-12-13 | 2007-12-13 | Installation, ovn og fremgangsmåde til opvarmning af præformerede rør inden molekylær orientering deraf |
PT78582947T PT2233269T (pt) | 2007-12-13 | 2007-12-13 | Instalação, forno e método de aquecimento de tubos pré-formados antes da sua orientação molecular |
AU2007362304A AU2007362304B2 (en) | 2007-12-13 | 2007-12-13 | Installation, oven and method for heating preform tubes prior to the molecular orientation thereof |
CA2709001A CA2709001C (en) | 2007-12-13 | 2007-12-13 | Facility, oven and procedure for heating preformed tubes prior to their molecular orientation |
EP07858294.7A EP2233269B1 (en) | 2007-12-13 | 2007-12-13 | Installation, oven and method for heating preform tubes prior to the molecular orientation thereof |
ES07858294T ES2788076T3 (es) | 2007-12-13 | 2007-12-13 | Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular |
LTEP07858294.7T LT2233269T (lt) | 2007-12-13 | 2007-12-13 | Įranga, krosnis ir būdas iš anksto suformuotų vamzdžių kaitinimui pagal jų molekulinę padėtį |
PCT/ES2007/070210 WO2009074694A1 (es) | 2007-12-13 | 2007-12-13 | Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular |
PL07858294T PL2233269T3 (pl) | 2007-12-13 | 2007-12-13 | Instalacja, piec i metoda podgrzewania rur preformowanych przed osiągnięciem przez nie orientacji molekularnej |
BRPI0722205-0A BRPI0722205B1 (pt) | 2007-12-13 | 2007-12-13 | forno para aquecimento de tubos e procedimento para aquecimento |
US12/747,698 US20110037196A1 (en) | 2007-12-13 | 2007-12-13 | Installation, oven and method for heating preform tubes prior to the molecular orientation thereof |
HUE07858294A HUE048883T2 (hu) | 2007-12-13 | 2007-12-13 | Telepítés, kemence és elõformázott csövek hevítési módszere azok molekuláris orientációja elõtt |
SI200732151T SI2233269T1 (sl) | 2007-12-13 | 2007-12-13 | Namestitev, peč in metoda segrevanja predhodno oblikovanih cevk pred njihovo molekularno orientacijo |
EC2010010341A ECSP10010341A (es) | 2007-12-13 | 2010-07-12 | Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2007/070210 WO2009074694A1 (es) | 2007-12-13 | 2007-12-13 | Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009074694A1 true WO2009074694A1 (es) | 2009-06-18 |
Family
ID=39682527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2007/070210 WO2009074694A1 (es) | 2007-12-13 | 2007-12-13 | Instalación, horno y procedimiento de calentamiento de tubos preforma previo a su orientación molecular |
Country Status (14)
Country | Link |
---|---|
US (1) | US20110037196A1 (es) |
EP (1) | EP2233269B1 (es) |
AU (1) | AU2007362304B2 (es) |
BR (1) | BRPI0722205B1 (es) |
CA (1) | CA2709001C (es) |
DK (1) | DK2233269T3 (es) |
EC (1) | ECSP10010341A (es) |
ES (1) | ES2788076T3 (es) |
HU (1) | HUE048883T2 (es) |
LT (1) | LT2233269T (es) |
PL (1) | PL2233269T3 (es) |
PT (1) | PT2233269T (es) |
SI (1) | SI2233269T1 (es) |
WO (1) | WO2009074694A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7123972B2 (ja) * | 2017-01-06 | 2022-08-23 | フレンドシップ プロダクツ リミテッド ライアビリティ カンパニー | 成形システムおよび関連方法 |
JP7264075B2 (ja) * | 2020-01-30 | 2023-04-25 | トヨタ自動車株式会社 | 高圧タンク製造装置 |
CN113071117B (zh) * | 2021-03-31 | 2023-01-10 | 重庆伟星新型建材有限公司 | 管道热处理设备 |
US20240181679A1 (en) * | 2021-04-26 | 2024-06-06 | Optiflux Tech Innovations Private Limited | System and process to heat preformed plastic pipes |
CN113246350B (zh) * | 2021-06-04 | 2021-11-12 | 江苏金安电气有限公司 | 一种高效玻璃钢套管生产用固化装置 |
Citations (7)
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US2481130A (en) * | 1945-05-05 | 1949-09-06 | Eagle Picher Co | Drier for thermal pipe insulation |
US2929102A (en) * | 1956-10-31 | 1960-03-22 | John T Riddell Inc | Apparatus and method for making face guards |
US3462582A (en) * | 1967-02-07 | 1969-08-19 | Phillips Petroleum Co | Parison heating |
US3740868A (en) * | 1971-07-22 | 1973-06-26 | Beloit Corp | Parison oven |
US4025294A (en) * | 1974-05-24 | 1977-05-24 | Beloit Corporation | Parison oven |
GB2190733A (en) * | 1986-05-19 | 1987-11-25 | Naylor Bros | Clayware pipe manufacture |
DE4436577C1 (de) * | 1994-10-13 | 1996-02-22 | Preussag Anlagenbau | Vorrichtung zum Erwärmen von Kunststoffrohren |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6016492B2 (ja) * | 1979-06-14 | 1985-04-25 | 株式会社クボタ | 鋳鉄管の熱処理装置 |
IT1146283B (it) * | 1981-04-13 | 1986-11-12 | Antonio Savi | Macchina per sterilizzare, a pressione atmosferica, prodotti alimentari in contenitori cilindrici |
US4505670A (en) * | 1983-03-02 | 1985-03-19 | Imdec S.R.L | Apparatus for moving and thermally conditioning cylindrical containers |
GB8817390D0 (en) * | 1988-07-21 | 1988-08-24 | Metal Box Plc | Stretch blow-moulding thermoplastics articles |
DE3832734C1 (es) * | 1988-09-27 | 1990-03-29 | A.P.T. Anlagen Fuer Pyrotechnik Gmbh, 4000 Duesseldorf, De | |
ZA951223B (en) * | 1994-02-16 | 1995-10-18 | Silvestrini J A | Apparatus for thermally conditioning cylindrical containers |
US6888103B2 (en) * | 2002-05-30 | 2005-05-03 | Ball Corporation | Preform preheater |
-
2007
- 2007-12-13 DK DK07858294.7T patent/DK2233269T3/da active
- 2007-12-13 ES ES07858294T patent/ES2788076T3/es active Active
- 2007-12-13 EP EP07858294.7A patent/EP2233269B1/en active Active
- 2007-12-13 PT PT78582947T patent/PT2233269T/pt unknown
- 2007-12-13 CA CA2709001A patent/CA2709001C/en active Active
- 2007-12-13 US US12/747,698 patent/US20110037196A1/en not_active Abandoned
- 2007-12-13 PL PL07858294T patent/PL2233269T3/pl unknown
- 2007-12-13 HU HUE07858294A patent/HUE048883T2/hu unknown
- 2007-12-13 BR BRPI0722205-0A patent/BRPI0722205B1/pt active IP Right Grant
- 2007-12-13 SI SI200732151T patent/SI2233269T1/sl unknown
- 2007-12-13 WO PCT/ES2007/070210 patent/WO2009074694A1/es active Application Filing
- 2007-12-13 AU AU2007362304A patent/AU2007362304B2/en active Active
- 2007-12-13 LT LTEP07858294.7T patent/LT2233269T/lt unknown
-
2010
- 2010-07-12 EC EC2010010341A patent/ECSP10010341A/es unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481130A (en) * | 1945-05-05 | 1949-09-06 | Eagle Picher Co | Drier for thermal pipe insulation |
US2929102A (en) * | 1956-10-31 | 1960-03-22 | John T Riddell Inc | Apparatus and method for making face guards |
US3462582A (en) * | 1967-02-07 | 1969-08-19 | Phillips Petroleum Co | Parison heating |
US3740868A (en) * | 1971-07-22 | 1973-06-26 | Beloit Corp | Parison oven |
US4025294A (en) * | 1974-05-24 | 1977-05-24 | Beloit Corporation | Parison oven |
GB2190733A (en) * | 1986-05-19 | 1987-11-25 | Naylor Bros | Clayware pipe manufacture |
DE4436577C1 (de) * | 1994-10-13 | 1996-02-22 | Preussag Anlagenbau | Vorrichtung zum Erwärmen von Kunststoffrohren |
Also Published As
Publication number | Publication date |
---|---|
SI2233269T1 (sl) | 2020-07-31 |
PT2233269T (pt) | 2020-04-01 |
ECSP10010341A (es) | 2010-08-31 |
CA2709001C (en) | 2015-02-03 |
BRPI0722205A2 (pt) | 2014-05-20 |
EP2233269A1 (en) | 2010-09-29 |
HUE048883T2 (hu) | 2020-08-28 |
AU2007362304A1 (en) | 2009-06-18 |
BRPI0722205B1 (pt) | 2021-03-02 |
ES2788076T3 (es) | 2020-10-20 |
EP2233269B1 (en) | 2020-01-29 |
CA2709001A1 (en) | 2009-06-18 |
PL2233269T3 (pl) | 2020-08-10 |
US20110037196A1 (en) | 2011-02-17 |
DK2233269T3 (da) | 2020-04-27 |
LT2233269T (lt) | 2020-05-11 |
AU2007362304B2 (en) | 2012-04-12 |
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