CN1171711C - Installation for producing pipes by centrifugal casting - Google Patents
Installation for producing pipes by centrifugal casting Download PDFInfo
- Publication number
- CN1171711C CN1171711C CNB008017476A CN00801747A CN1171711C CN 1171711 C CN1171711 C CN 1171711C CN B008017476 A CNB008017476 A CN B008017476A CN 00801747 A CN00801747 A CN 00801747A CN 1171711 C CN1171711 C CN 1171711C
- Authority
- CN
- China
- Prior art keywords
- mould
- module
- feedway
- centrifugal casting
- pipe
- 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 - Fee Related
Links
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 title abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 208000034189 Sclerosis Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/36—Feeding the material on to the mould, core or other substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
- B28B21/32—Feeding the material into the moulds
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention relates to an installation for producing pipe elements by centrifugal casting, characterized in that it comprises a feed device (6) and modules (1 to 5). Each module comprises a rotationally mounted centrifugal casting mould (11 to 15) with drive mechanism (24, 25), heating and cooling units, sensors for monitoring speed and temperature and easily detachable connections for energy supply and control. Each module is provided with one or more elements (27) which can be engaged by a lifting device and is configured such that it can be lifted as a single piece and transported once all the connections have been released.
Description
Technical field
The present invention relates to a kind of by the device of centre spinning with synthetic resin, glass fibre, inorganic filler and Additive Production pipe.
Background technology
This device especially by DE1779980A, CH-A684326, PCT WO93/08009, EP-A0790114 and DE2022016A as can be known.These devices are used for the pipe of the very big and diameter of production length greater than 10cm, for example long 6 meters or longer on this pipe.These devices comprise: atwirl mould, have at least one supply arm so that the appropriate device of introducing the feedway of structural material and being used to control the sclerosis of pipe.In order to produce in a large number, produce a plurality of pipes with interlace mode usually.In common device, a plurality of moulds are installed side by side, and this need make feedway move with orthogonal both direction, and feedway and mould can both be moved, and like this, mould can load one by one.Such device is fixture normally, and they are difficult to assembling and firmly are connected on the production site.But, in order to reduce freight, reduce production costs as far as possible simultaneously, market situation wishes to have under certain conditions a kind of like this device, this device can be transported to another production place from a production place in use, and have an acceptable level of production, this be aforementioned any device consider that not and they all can not have the acceptable level of production.
Summary of the invention
Therefore, the invention provides a kind of device by centre spinning production plastic tube, this device does not have aforesaid drawbacks, and can be transported to another place from a place, and has the acceptable level of production.
To achieve these goals, the invention provides a kind of device that is used for producing pipe by centre spinning, comprise a plurality of single feedwaies that have horizontal axis and centrifugal casting mould that drive by motor and be used in mould, loading one by one the structural material that is used to produce pipe, this feedway is equipped with a container that is used for the container of sand and is used for liquid synthetic resin and curing agent, device of carrying the glass fibre section and one are transported to arm in each mould with structural material, the length of this arm is corresponding to the length of mould, it is characterized in that: it has the module of a plurality of basic same equipments, this module is separate, and comprises that respectively at least one is with lower member: a centrifugal casting mould of rotatably installing; Make the drive unit of this mould with controllable speed rotation; Be used for the heating and cooling unit that increases or reduce mold temperature when needed or keep this temperature constant; Be used to detect the sensor of mold temperature and rotating speed; Be used for to drive unit with to the connector of heating and cooling unit energize be used to write down the connector of the measured value of measuring by sensor; Be used for the parts that cooperate with lowering or hoisting gear and the parts or the auxiliary equipment that can be fixedly mounted on the base plate face.
Description of drawings
Introduce an enforcement of the present invention below with reference to having schematic accompanying drawing.
Only accompanying drawing is depicted as the overall diagrammatic sketch of whole device.
The specific embodiment
As shown in the figure, this device comprises a plurality of by the module of 1 to 5 overall expression with by the 6 overall feedwaies of representing.
Each module 1 to 5 comprises a centrifugal casting mould 11,12,13,14 or 15 that is rotatably installed on the supporting member 16 respectively.Mould 11 to 15 can be determined size easily with the supporting member 16 that belongs to them, and like this, mould 11 to 15 has different diameters, and their axis all is positioned at the sustained height place that is higher than base plate 31.Supporting member 16 is installed on the guide plate (trough) 17 by holding device 16a, and this guide plate 17 refills on rest pad 18.These rest pads 18 are contained on the base plate 31 by dismountable threaded connector 29.This guide plate 17 is formed for installing the housing of corresponding mould with side cover 19 and cover 21, and this side cover 19 has the observation window 20 of transparent plastic.In a side facing to feedway 6, retaining rail 23 additional being installed on each guide plate 17, and CD-ROM drive motor 24 is installed on each retaining rail 23 replaceably.Each CD-ROM drive motor is connected on the mould relevant with this motor by driving belt 25.This belt 25 can be tightened up by CD-ROM drive motor 24 is moved on its retaining rail 23.
In addition, each mould equipment has water supply installation, and this water supply installation is used for the heating and cooling mould.This water supply installation is useful on the service 26 of supply nozzle, and this supply nozzle is arranged on the whole length of cover 21 underlying die, like this, can select with hot water or cold water injection to the mould with the control hardening process.Water is collected in the guide plate 17 that is loaded on below the mould and can discharges from this guide plate.Water-cooled can be by for example carrying out as the described circulatory system of CH-A-684326 easily.Can detect mold temperature by the thermocouple 30 that is installed on each mould.
The power supply connector of water supply installation and CD-ROM drive motor 24 and the cable that is used to control with sensor signal all are equipped with quick acting lock (lock), so that can disconnect fast.Because this device is design like this, be each mould with relevant with it and have cover 21, guide plate 17, side cover 19, supporting member 16, CD-ROM drive motor 24 and the driving belt 25 of nozzle system to form the unit that a this paper is called module together, therefore, module can be used as integral body and is sling and when needed it is transported.For this reason, after fixedly section bar 18 and connector are taken apart, the required just hook of lowering or hoisting gear being inserted in the ring 27 that vertically is contained in above the module center of gravity of doing.
The ring that can cooperate with the hook of lowering or hoisting gear also can be contained in other position, for example on rest pad 18.
Module 1 has pit below 5, this pit is as service pit, electricity, water is housed and is used for the supply lines or the pipeline of the lubricating oil of supporting member 16, also is convenient to be easy near this module when maintenance.
Feedwaies by 6 overall expressions have balladeur train 60, and this balladeur train 60 wherein is equipped with reservoir vessel and glass fibre coil 61 as described in the PCT/WO93/08009, and this reservoir vessel has measuring pump, and is used for various liquid plastics components and sand.This feedway also has a supply arm 62, and transportation and the conveyer that is used for these original materials is housed in this supply arm 62.This supply arm 62 is to be easy to integral demounting and removable when needed mode is installed on the balladeur train 60 of feedway 6 by pin or threaded connector.The transfer port of plastic resin and sand and the shear that is used for glass wire are installed in the free end of supply arm 62.
Feedway 6 can be by not shown chain and sprocket driving device with mass motion on the track 63 of direction shown in the arrow A in the guide plate that is installed on base plate 31, like this, the axis of supply arm 62 can with the dead in line of any proper mold, for example, in the drawings with the dead in line of mould 11.At this moment, the balladeur train 60 that has supply arm 62 can guide on the pair of tracks 64 that is parallel to mould 11 to 15 axis and move, and can be driven back and forth on direction shown in the arrow B by the motor that is loaded in the balladeur train 60 by not shown cable.Supply arm 62 is introduced in the mould supply hole of mould front.Supply arm 62 long enoughs are so that make its free end can reach the position of formed tube end in the mould when it moves to displacement apart from end.
Box 70 be equipped with link to each other with computer, be used for whole Device Testing and control device, especially for device that the measurement data that is transmitted by the thermocouple 30 that is installed on the mould is write down and handles and heating or the Cooling Control device that is used to control feedway 6, CD-ROM drive motor 24 and water.These devices link to each other with module by circuit 70a, link to each other with feedway 6 by circuit 70b.
Simply introduce the working method of this device below.
In schematic structure, feedway 6 is in the position that mould 11 is loaded, because the dead in line of its axis and supply arm 62.At first, demoulding agent of mould is ejected in the mould 11, the structural material and the mold wall bonding that are used to produce pipe that this demoulding agent of mould prevents to introduce subsequently, this mould 11 is driven by belt 25 by the motor that cooperates with it.For this reason, supply arm 62 also comes out from described mould in the mould 11 of its front with constant speed movement again, simultaneously from being installed in supply arm 62 free-ended nozzle (not shown) delivery mold releasing agents.Then, the loading of mould is undertaken by following steps, wherein, supply arm 62 one or many move in the mould and come out from mould, and according to the required structural material of program conveying production layer of glass reinforced plastics pipe that is stored in the controller, this pipe is made of multilayer usually, promptly, constitute by synthetic resin, and be filled with filler, curing agent, sand and glass fibre.
Behind this EO, feedway 6 moves right such distance with direction shown in the arrow A in scheming, and, makes the dead in line of axis and mould 12 of supply arm that is.
Again mould 12 is carried out abovementioned steps.Simultaneously, the material of being introduced, form pipe by centrifugal action begins sclerosis in still with the mould 11 of rotation at a high speed, also can carry out compression moulding (compaction) to this material as required.After the loading of mould 12 finished, feedway 6 carried out another displacement step to the right with direction shown in the arrow A.From mould 11, so one by one mould is loaded.In the mould that has loaded, material continues sclerosis.Each mould 11 to 15 is driven by the motor 24 that cooperates with them by driving belt 25, rotary speed is controlled by controller, and depend on the instantaneous production status of formed pipe, also depend on the composition and the desirable characteristic of the mould diameter and the pipe that forms certainly.Can be according to by the thermocouple 30 and the common requirement of determining that are installed on the mould, by supplying water and heat supply or heat extraction to mould in conjunction with control device.
According to required structure, promptly, repeat above-mentioned steps according to the required number of plies of the tube wall that will produce.
In cure process, the rotating speed of each mould slowly reduces, and like this, each mould stops operating when the generation step of formed pipe finishes.The pipe that generates takes out from the side away from feedway 6 of mould by such device, this Design of device for example with EP-A0790114 introduced identical.At this moment, can the mould of the plastic tube that do not had to be generated be cleaned, can restart loading operation then.
As previously mentioned, whole device is worked by this way, and promptly for different moulds, the taking-up of loading, sclerosis, pipe and cleaning are staggered carries out, and like this, pipe is produced alternately.
When needing, whole device can be transported to another place with plain mode.For module 1 to 5 is transported, all required just pulling down of doing is used for rest pad 18 is fixed on the threaded connector on the base plate 31 and the quick acting lock and the plug connector of water supply, power supply and control motor.Then, lowering or hoisting gear can cooperate with ring 27 or the ring that is contained in other position, and module can integral body be sling and transported.In order to transport, feedway 6 can split into balladeur train 60, supply arm 62, pair of tracks 64 and chain driver, and they can singlely transport.Like this, in new place, all required do just be provided for packing into the base plate plane 31 of threaded connector 29 of rest pad 18 and track 63, the connector of power supply, fuel feeding is provided, if the device with water cooling and heating can not be finished by the circulatory system, then also provide the connector of supplying with hot and cold water.
Certainly, this modular structure also can only change each module, this for example when need producing the pipe that different-diameter is arranged on a small quantity of great use.
At last, should illustrate also that said apparatus is just represented one embodiment of the present of invention certainly, it can carry out various variations.For example, it fully can be with two supply arms, and two supply arms all are installed on the balladeur train 60, and load for simultaneously two adjacent moulds, thereby improve the efficient of loading process.And this device must not be 5 modules just in time; Provide six or more module effective too.Equally, can select, for example, adopt the electrical heating elements that is installed on each mould the method for heating mould.
Claims (3)
1. be used for producing the device of pipe by centre spinning, comprise and a plurality ofly have horizontal axis and centrifugal casting mould (11 to 15) that drive by motor and be used for one by one the single feedway (6) that in mould loading is used to produce the structural material of pipe, this feedway is equipped with a container that is used for the container of sand and is used for liquid synthetic resin and curing agent, device of carrying the glass fibre section and one are transported to arm (62) in each mould (11 to 15) with structural material, the length of this arm is corresponding to the length of mould, it is characterized in that: it has the module (1 to 5) of a plurality of basic same equipments, this module is separate, and comprises that respectively at least one is with lower member:
A centrifugal casting mould (11 to 15) of rotatably installing;
Make the drive unit (24,25) of this mould with controllable speed rotation;
Be used for the heating and cooling unit that increases or reduce mold temperature when needed or keep this temperature constant;
Be used to detect the sensor of mold temperature and rotating speed;
Be used for to drive unit with to the connector of heating and cooling unit energize be used to write down the connector of the measured value of measuring by sensor;
Be used for the parts (27) that cooperate with lowering or hoisting gear and can be fixedly mounted on parts or auxiliary equipment (18) on the base plate face (31).
2. device according to claim 1 is characterized in that: at least one module (1 to 5) is equipped to like this, promptly can adopt the centrifugal casting mould of different-diameter in this module.
3. device according to claim 1 and 2 is characterized in that: the conveying arm (62) of feedway (6) can be pulled down from the remaining part of feedway (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH812/1999 | 1999-05-03 | ||
| CH81299 | 1999-05-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1321118A CN1321118A (en) | 2001-11-07 |
| CN1171711C true CN1171711C (en) | 2004-10-20 |
Family
ID=4195766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008017476A Expired - Fee Related CN1171711C (en) | 1999-05-03 | 2000-04-27 | Installation for producing pipes by centrifugal casting |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN1171711C (en) |
| AU (1) | AU3653100A (en) |
| BR (1) | BR0007153A (en) |
| HK (1) | HK1041235A1 (en) |
| TR (1) | TR200101278T2 (en) |
| WO (1) | WO2000066337A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX345815B (en) * | 2010-02-23 | 2017-02-17 | Grupo Rotoplas S A De C V * | Metodo y aparato para moldeo rotacional. |
| CN104044233A (en) * | 2013-03-13 | 2014-09-17 | 赵广义 | Liquid heat conduction centrifuge for cast nylon part mould |
| CN112659351B (en) * | 2020-12-25 | 2022-04-12 | 义乌市超强管业有限公司 | Diffusion type processing method for processing cement pipeline |
| CN113334661A (en) * | 2021-06-09 | 2021-09-03 | 蚌埠学院 | Extraction element is used in peppermint essential oil curtain coating film forming |
| CN114083675B (en) * | 2021-11-02 | 2023-08-25 | 阜阳晶宫绿建节能建筑有限责任公司 | Centrifugal forming machine for concrete prefabricated parts |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH522490A (en) * | 1969-05-14 | 1972-06-30 | Pellicer Carlos F | Process for the manufacture of pipes and installation for the implementation of this process |
| US4881715A (en) * | 1988-12-30 | 1989-11-21 | Holdt J W Von | Safety lift lock with internal member |
| JPH0669694B2 (en) * | 1989-02-20 | 1994-09-07 | 日産自動車株式会社 | Heating method for slush mold |
| KR0148824B1 (en) * | 1991-10-23 | 1998-10-15 | 가브리엘라 론치;도미니크 메이어 | Process for manufacturing reinforced duroplastic pipes in a centrifugal process and installation for carrying out the process |
| CH684326A5 (en) * | 1991-10-23 | 1994-08-31 | Hobas Eng Ag | A process for producing a plastic pipe and plant for carrying out the method. |
| CH688768A5 (en) * | 1995-03-23 | 1998-03-13 | Hobas Eng Ag | Centrifugal casting plant for production of long reinforced plastic pipes |
| ES2146857T3 (en) * | 1995-12-22 | 2000-08-16 | Hobas Eng Ag | INSTALLATION FOR THE MANUFACTURE OF PLASTIC TUBES THROUGH A CENTRIFUGAL CASTING PROCEDURE. |
-
2000
- 2000-04-27 BR BR0007153-6A patent/BR0007153A/en not_active IP Right Cessation
- 2000-04-27 CN CNB008017476A patent/CN1171711C/en not_active Expired - Fee Related
- 2000-04-27 AU AU36531/00A patent/AU3653100A/en not_active Abandoned
- 2000-04-27 WO PCT/CH2000/000233 patent/WO2000066337A1/en active Application Filing
- 2000-04-27 TR TR2001/01278T patent/TR200101278T2/en unknown
-
2002
- 2002-04-22 HK HK02103001.9A patent/HK1041235A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU3653100A (en) | 2000-11-17 |
| HK1041235A1 (en) | 2002-07-05 |
| TR200101278T2 (en) | 2001-12-21 |
| CN1321118A (en) | 2001-11-07 |
| BR0007153A (en) | 2001-07-31 |
| WO2000066337A1 (en) | 2000-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HOBERTH ENGINEERING AND PIPELINE CO., LTD. Free format text: FORMER NAME OR ADDRESS: HOBAS ENGINEERING AG |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Basel Patentee after: Hobarth pipeline engineering and Limited by Share Ltd Address before: Basel Patentee before: Hobas Engineering AG |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hobas Engineering GmbH Assignor: Hobarth pipeline engineering and Limited by Share Ltd Contract fulfillment period: 2005.6.3 to 2013.4.6 contract change Contract record no.: 2008990000029 Denomination of invention: A device for producing tubes by centrifugal casting Granted publication date: 20041020 License type: General permission Record date: 2008.2.25 Assignee: Zhejiang Dongfang Haobo Pipes Co.,Ltd. Assignor: Hobarth pipeline engineering and Limited by Share Ltd Contract fulfillment period: 2005.10.26 to 2013.4.6 contract change Contract record no.: 2008990000030 Denomination of invention: A device for producing tubes by centrifugal casting Granted publication date: 20041020 License type: Fen Xuke Record date: 2008.2.25 |
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