WO2025126125A1 - Lamp for curing polymer coatings, plant for internally coating pipes comprising such a lamp and method for internally coating pipes actuated by such a plant - Google Patents
Lamp for curing polymer coatings, plant for internally coating pipes comprising such a lamp and method for internally coating pipes actuated by such a plant Download PDFInfo
- Publication number
- WO2025126125A1 WO2025126125A1 PCT/IB2024/062616 IB2024062616W WO2025126125A1 WO 2025126125 A1 WO2025126125 A1 WO 2025126125A1 IB 2024062616 W IB2024062616 W IB 2024062616W WO 2025126125 A1 WO2025126125 A1 WO 2025126125A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lamp
- support
- pipe
- diffuser
- sprayer
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
- B05D7/225—Coating inside the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
Definitions
- the invention relates to a lamp for curing polymer coatings.
- the invention relates to a method for internally coating pipes actuated by means of such a plant.
- lamps for curing polymer coatings are well known and increasingly popular today, where such coatings improve the mechanical strength of the surfaces to which they are applied and significantly slow down the corrosion process related to the working conditions.
- a second limitation is related to the inefficient cooling of such lamps, which disadvantageously require dedicated cooling systems.
- the task of the present invention is to develop a lamp capable of obviating the aforementioned drawbacks and limitations of the prior art.
- FIG. 1 depicts a perspective view of the lamp which is the subject matter of the invention
- FIG. 1 depicts a sectional side view of the lamp of Figure 1 ;
- FIG. 3 depicts a schematic view of a plant for internally coating pipes comprising the lamp of Figure 1 .
- a lamp for curing polymer coatings according to the invention is indicated as a whole with the number 10 and is clearly visible in Figures 1 , 2 and 3.
- Such a lamp 10 comprises:
- a source 50 of ultra-violet radiation arranged inside the diffuser 20 and clearly visible in Figures 1 , 2 and 3; such a source 50 is configured to emit the aforesaid ultra-violet radiation towards the outside of the diffuser 20.
- first channel 60 for the passage of a gas between at least a first inlet port 61 arranged in the base 30 and at least a first outlet port 62 arranged in said head 40.
- the source 50 comprises a support 51, clearly visible in Figures 1 and 2, substantially tubular and coaxial to the longitudinal extension of the diffuser 20.
- the source 50 also has its ends 50a and 50b fixed to the base 30 and head 40, respectively.
- the support 51 has a substantially regular polygonal cross-section with a plurality of faces 51a, 51b and 51c, clearly visible in Figure 1 , which define the outer surface of the support 51. More precisely, as depicted in Figure 1 , at least one row 52a, 52b and 52c of such a plurality of LEDs 52 is arranged on each of such faces 51a, 51b and 51c, aligned with each other parallel to the longitudinal extension of the support 51.
- a pair of the aforesaid rows 52a, 52b and 52c is arranged on each of the faces 51a, 51b and 51c.
- the invention also relates to a plant for internally coating pipes comprising such a lamp 10.
- Such a plant 100 clearly visible in Figure 3, comprises:
- a frame 110 also visible in Figure 3, configured to support a pipe T along an operating axis X;
- a sprayer 120 visible in Figure 3, with a bell 121 oriented towards the inside of the pipe T and operatively connected to first translation means Ma adapted to translate the sprayer 120 through the pipe T along the operating axis X; in particular, such a sprayer 120 is configured to spray a polymer coating on the inner surface of the pipe T;
- the lamp 10 clearly visible in Figure 3, with the head 40 oriented towards the inside of the pipe T and operatively connected to second translation means Mb adapted to translate the lamp 10 through the pipe T along the operating axis X; more precisely, the lamp 10 is configured to emit the aforesaid ultraviolet radiation on the inner surface of the pipe T;
- the sprayer 120 is to be considered of known type.
- the gas is nitrogen and the first injection means 130 therefore correspond to a nitrogen cylinder connected to the aforesaid first inlet port 61.
- the plant 100 comprises compressed air cooling means 140, also visible in Figure 3 and connected to the aforesaid second inlet port 71 and second outlet port 72.
- first translation means Ma and the second translation means Mb are part of a single translation system adapted to translate the sprayer 120 and the lamp 10 simultaneously and that the aforesaid sprayer 120 and the aforesaid lamp 10 are connected to each other through a common translation axis instead of each having the translation axis thereof.
- the invention further relates to a method for internally coating pipes actuated by such a plant 100.
- Such a method comprises the following sequential steps: a) arranging the pipe T on the frame 110; b) translating the sprayer 120 with the bell 121 at a first end Ta of the pipe T; c) starting the spraying of the polymer coating by the sprayer 120 and actuating a translation of the sprayer 120 towards a second end Tb of the pipe T opposite the first end Ta; d) translating the lamp 10 with the head 40 at the first end Ta; e) starting the injection of the inert gas by the first injection means 130, starting the emission of ultraviolet radiation by the lamp 10, and actuating a translation of the lamp 10 towards the second end Tb.
- the invention achieves the intended task and objects.
- the invention has developed a lamp which allows actuating the curing process of polymer coatings with less time with respect to similar lamps of known type under the same operating conditions.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention relates to a lamp (10) for curing polymer coatings. Such a lamp (10) comprises: - a diffuser (20) which is permeable to ultraviolet radiation and which extends in length between a base (30) and an opposite head (40) of the lamp (10); - a source (50) of ultraviolet radiation arranged inside the diffuser (20) and configured to emit the aforesaid ultraviolet radiation towards the outside of the diffuser (20). It should be noted that inside the diffuser (20) there is at least a first channel (60) for the passage of a gas between at least a first inlet port (61) arranged in the base (30) and at least a first outlet port (62) arranged in the head (40).
Description
LAMP FOR CURING POLYMER COATINGS, PLANT FOR INTERNALLY COATING PIPES COMPRISING SUCH A LAMP AND METHOD FOR INTERNALLY COATING PIPES ACTUATED BY SUCH A PLANT.
DESCRIPTION
The invention relates to a lamp for curing polymer coatings.
The invention also relates to a plant for internally coating pipes comprising such a lamp.
Furthermore, the invention relates to a method for internally coating pipes actuated by means of such a plant.
The use of lamps for curing polymer coatings is well known and increasingly popular today, where such coatings improve the mechanical strength of the surfaces to which they are applied and significantly slow down the corrosion process related to the working conditions.
Such lamps, although known and appreciated, have some important limitations.
In particular, it is noted that the curing process of polymer coatings actuatable by means of such lamps of known type is characterised by very long times. Disadvantageously, such times do not allow obtaining coatings of uniform thickness, greatly affecting the fluid-dynamic properties of the surfaces to which they are applied.
A second limitation, instead, is related to the inefficient cooling of such lamps, which disadvantageously require dedicated cooling systems.
The task of the present invention is to develop a lamp capable of obviating the aforementioned drawbacks and limitations of the prior art.
In particular, it is the aim of the invention to develop a lamp which allows actuating the curing process of polymer coatings in less time with respect to similar lamps of known type placed under the same operating conditions.
It is further the aim of the invention to develop a lamp which does not require dedicated cooling systems with respect to similar lamps of known type.
The above-mentioned task and aims are achieved by a lamp according to claim 1.
Further characteristics of the lamp according to claim 1 are described in the dependent claims.
The task and the aforesaid aims, together with the advantages that will be mentioned hereinafter, are indicated by the description of two embodiments
of the invention, which are given by way of non-limiting example with reference to the attached drawings, where:
- Figure 1 depicts a perspective view of the lamp which is the subject matter of the invention;
- Figure 2 depicts a sectional side view of the lamp of Figure 1 ;
- Figure 3 depicts a schematic view of a plant for internally coating pipes comprising the lamp of Figure 1 .
With reference to the above-mentioned figures, a lamp for curing polymer coatings according to the invention is indicated as a whole with the number 10 and is clearly visible in Figures 1 , 2 and 3.
Such a lamp 10 comprises:
- a diffuser 20 permeable to ultraviolet radiation and clearly visible in Figures 1 , 2 and 3; such a diffuser 20 extends in length between a base 30 and an opposite head 40 of the lamp 10, as can be clearly seen in Figures 1 , 2 and 3;
- a source 50 of ultra-violet radiation arranged inside the diffuser 20 and clearly visible in Figures 1 , 2 and 3; such a source 50 is configured to emit the aforesaid ultra-violet radiation towards the outside of the diffuser 20.
It should be noted that inside the diffuser 20 there is at least a first channel 60, clearly visible in Figures 1 and 2, for the passage of a gas between at least a first inlet port 61 arranged in the base 30 and at least a first outlet port 62 arranged in said head 40.
When the aforesaid gas injected inside the first inlet port 61 is inert, the exit of such gas from the first outlet port 62 creates an inert environment around the diffuser of the lamp 10.
In this condition, it is advantageously possible to actuate the curing process of polymer coatings in the aforesaid area around the diffuser in less time and with higher curing quality with respect to similar lamps of known type placed under the same operating conditions.
Furthermore, the passage of the aforesaid gas through the aforesaid first channel 60 acts as a cooling system for the lamp 10.
Therefore, such a lamp 10 does not require dedicated cooling systems with respect to similar lamps of known type.
In the present embodiment example of the invention, the aforesaid first channel 60 is at least partially defined between the inner surface of the
diffuser 20 and the opposite outer surface of the source 50. This means that the inner surface of the diffuser 20 is spaced from the outer surface of the source 50, and it is precisely the interspace between the inner surface of the diffuser 20 and the outer surface of the source 50 which defines the first channel 60.
This advantageously allows the source 50 to be further cooled, causing the aforesaid gas to lap the outer surface of the source 50 as it passes through the first channel 60.
However, it cannot be excluded that the first channel 60 is defined differently inside the diffuser 20 with respect to what was just described.
In the present embodiment example of the invention, the diffuser 20 is made of quartz glass, but it is not excluded that a different material is used to make it. Again with reference to the present embodiment example of the invention, the diffuser 20 is substantially tubular and has a substantially circular crosssection.
This advantageously allows to convey the ultraviolet radiation of the source into a cylindrical wavefront, which is ideal for curing pipe internal coatings.
However, it cannot be excluded that the diffuser 20 has a different shape from what was just described.
In the embodiment example presented here, the source 50 comprises a support 51, clearly visible in Figures 1 and 2, substantially tubular and coaxial to the longitudinal extension of the diffuser 20.
Furthermore, the source 50 comprises a plurality of ultraviolet LEDs 52 arranged on the outer surface of the support 51.
Even more precisely, as is clear from Figures 1 and 2, just as the diffuser 20 has its ends 20a and 20b fixed to the base 30 and head 40, respectively, the source 50 also has its ends 50a and 50b fixed to the base 30 and head 40, respectively.
However, it is not excluded that the source 50 is only fixed at one end 50a to the base 30, without the opposite end 50b being fixed in any way to the head 40.
In the present embodiment example of the invention, the support 51 has a substantially regular polygonal cross-section with a plurality of faces 51a, 51b and 51c, clearly visible in Figure 1 , which define the outer surface of the support 51.
More precisely, as depicted in Figure 1 , at least one row 52a, 52b and 52c of such a plurality of LEDs 52 is arranged on each of such faces 51a, 51b and 51c, aligned with each other parallel to the longitudinal extension of the support 51.
This advantageously allows for an even more uniform intensity of the wavefront emitted by the source 50 around its longitudinal extension.
In this embodiment example of the invention, a pair of the aforesaid rows 52a, 52b and 52c is arranged on each of the faces 51a, 51b and 51c.
However, it is not excluded that such a plurality of LEDs 52 is arranged on the support 51 in a different manner from what was just presented.
Still in the present embodiment example of the invention, the support 51 has a substantially hexagonal cross-section.
This ensures that the source 50 generates an ideal wavefront for curing pipe internal coatings.
However, it is not excluded that such a support 51 has a different cross-section from what was just described.
In the present embodiment example of the invention, there is a second cooling channel 70 inside the support 51, clearly visible in Figure 2, for the passage of a cooling fluid between at least a second inlet port 71 and at least a second outlet port 72 both arranged in the base 30.
By this is meant that such a second channel 70 acts as an auxiliary cooling system for the lamp 10 through the introduction of the cooling fluid, preferably in liquid state, from the second inlet port 71 and its exit from the second outlet port 72.
Even more precisely, there is a tubular element 73 inside the support 51, clearly visible in Figure 2, which extends from the base 30 coaxially to the longitudinal extension of the support 51.
Such a second channel 70 has a first section 70a defined by the inner surface of the tubular element 73 for the passage of the cooling fluid between the second inlet port 71 towards the head 40.
Furthermore, always such a second channel 70 has a second section 70b defined between the outer surface of the tubular element 73 and the inner surface of the support 51 for the passage of the cooling fluid between the first section 70a towards said second outlet port 72.
It is emphasised that, in order to guarantee the passage of the cooling fluid
between the first section 70a and the second section 70b, the tubular element 73 is at least partially open at the head 40 and the two sections are therefore contiguous.
Such a configuration allows obtaining better heat dissipation by the lamp 10, imposing an inversion of the flow direction of the cooling fluid inside the second channel 70.
However, it is not excluded that in other embodiments of the invention, the second outlet port 72 instead acts as an inlet for the cooling fluid and that the second inlet port 71 instead acts as an outlet for the cooling fluid, thereby reversing the flow direction of the cooling fluid with respect to what was presented above.
Nor is it excluded that the second channel 70, the second inlet port 71 and the second outlet port 72 are not entirely present in other embodiments of the invention.
As mentioned above, the invention also relates to a plant for internally coating pipes comprising such a lamp 10.
Such a plant 100, clearly visible in Figure 3, comprises:
- a frame 110, also visible in Figure 3, configured to support a pipe T along an operating axis X;
- a sprayer 120, visible in Figure 3, with a bell 121 oriented towards the inside of the pipe T and operatively connected to first translation means Ma adapted to translate the sprayer 120 through the pipe T along the operating axis X; in particular, such a sprayer 120 is configured to spray a polymer coating on the inner surface of the pipe T;
- the lamp 10, clearly visible in Figure 3, with the head 40 oriented towards the inside of the pipe T and operatively connected to second translation means Mb adapted to translate the lamp 10 through the pipe T along the operating axis X; more precisely, the lamp 10 is configured to emit the aforesaid ultraviolet radiation on the inner surface of the pipe T;
- first injection means 130 of an inert gas, clearly visible in Figure 3 and connected to the aforesaid first inlet port 61.
In the present embodiment example of the plant 100, the sprayer 120 is to be considered of known type.
Furthermore, always in the present embodiment example of the invention, the gas is nitrogen and the first injection means 130 therefore correspond to
a nitrogen cylinder connected to the aforesaid first inlet port 61.
Still according to the present embodiment example of the invention, the plant 100 comprises compressed air cooling means 140, also visible in Figure 3 and connected to the aforesaid second inlet port 71 and second outlet port 72.
However, it is not excluded that the aforesaid first injection means 130 and the cooling means 140 are different from what was just presented.
It is also not to be excluded that the first translation means Ma and the second translation means Mb are part of a single translation system adapted to translate the sprayer 120 and the lamp 10 simultaneously and that the aforesaid sprayer 120 and the aforesaid lamp 10 are connected to each other through a common translation axis instead of each having the translation axis thereof.
The invention further relates to a method for internally coating pipes actuated by such a plant 100.
Such a method comprises the following sequential steps: a) arranging the pipe T on the frame 110; b) translating the sprayer 120 with the bell 121 at a first end Ta of the pipe T; c) starting the spraying of the polymer coating by the sprayer 120 and actuating a translation of the sprayer 120 towards a second end Tb of the pipe T opposite the first end Ta; d) translating the lamp 10 with the head 40 at the first end Ta; e) starting the injection of the inert gas by the first injection means 130, starting the emission of ultraviolet radiation by the lamp 10, and actuating a translation of the lamp 10 towards the second end Tb.
This means that each inner pipe section is initially sprayed with a polymer coating, is subsequently exposed to the aforesaid inert gas and only lastly irradiated by ultraviolet radiation for its curing.
The preferred embodiment of such a method also envisages that the translation of the sprayer 120 and the lamp 10 occur simultaneously, substantially at the same speed and with the lamp 10 delayed behind the sprayer 120.
This ensures that the lamp 10 interacts with sections of pipe T where the polymer coating has recently been applied by the sprayer 120.
Practically, it has been established that the invention achieves the intended task and objects.
In particular, the invention has developed a lamp which allows actuating the curing process of polymer coatings with less time with respect to similar lamps of known type under the same operating conditions.
Furthermore, a lamp was developed which does not require dedicated cooling systems with respect to similar lamps of known type.
Claims
1 ) Lamp (10) for curing polymer coatings, comprising:
- a diffuser (20) permeable to ultraviolet radiation and extending in length between a base (30) and an opposite head (40) of said lamp (10);
- a source (50) of ultraviolet radiation arranged inside said diffuser (20) and configured to emit said ultraviolet radiation towards the outside of said diffuser (20); characterised in that inside said diffuser (20) there is at least a first channel (60) for the passage of a gas between at least a first inlet port (61 ) arranged in said base (30) and at least a first outlet port (62) arranged in said head (40).
2) Lamp (10) according to claim 1 , characterised in that said first channel (60) is at least partially defined between the inner surface of said diffuser (20) and the opposite outer surface of said source (50).
3) Lamp (10) according to any of the preceding claims, characterised in that said diffuser (20) is substantially tubular and has a substantially circular cross-section.
4) Lamp (10) according to any one of the preceding claims, characterised in that said source (50) comprises a support (51 ) which is substantially tubular and coaxial to the longitudinal extension of said diffuser (20), said source (50) comprising a plurality of ultraviolet LEDs (52) arranged on the outer surface of said support (51 ).
5) Lamp (10) according to claim 4, characterised in that said support (51 ) has a substantially regular polygonal cross-section with a plurality of faces (51 a, 51 b, 51 c) defining the outer surface of said support (51 ), at least one row (52a, 52b, 52c) of said plurality of LEDs (52), aligned with each other parallel to the longitudinal extension of said support (51 ), being arranged on each of said faces (51 a, 51 b, 51 c).
6) Lamp (10) according to claim 5, characterised in that said support (51 ) has a substantially hexagonal cross-section.
7) Lamp (10) according to any one of claims 4 to 6, characterised in that inside said support (51 ) there is a second cooling channel (70) for the passage of a cooling fluid between at least a second inlet port (71 ) and at least a second outlet port (72) both arranged in said base (30).
8) Lamp (10) according to claim 7, characterised in that inside said support (51 ) there is a tubular element (73) which extends from said base (30)
coaxially to the longitudinal extension of said support (51 ), said second channel (70) having a first section (70a) defined by the inner surface of said tubular element (73) for the passage of said cooling fluid between said second inlet port (71 ) towards said head (40), said second channel (70) having a second section (70b) defined between the outer surface of said tubular element (73) and the inner surface of said support (51 ) for the passage of said cooling fluid between said first section (70a) towards said second outlet port (72).
9) Plant (100) for internally coating pipes, characterised in that it comprises:
- a frame (110) configured to support a pipe (T) along an operating axis (X);
- a sprayer (120) with a bell (121 ) oriented towards the inside of said pipe (T) and operatively connected to first translation means (Ma) adapted to translate said sprayer (120) through said pipe (T) along said operating axis (X), said sprayer (120) being configured to spray a polymer coating on the inner surface of said pipe (T);
- a lamp (10) according to any one of the preceding claims with said head (40) oriented towards the inside of said pipe (T) and operatively connected to second translation means (Mb) adapted to translate said lamp (10) through said pipe (T) along said operating axis (X), said lamp (10) being configured to emit said ultraviolet radiation on the inner surface of said pipe (T);
- first injection means (130) of an inert gas connected to said at least a first inlet port (61 ).
10) Method for internally coating pipes actuated by a plant (100) according to claim 9, characterised in that it comprises the following steps in sequence: a) arranging said pipe (T) on said frame (110); b) translate said sprayer (120) with said bell (121 ) at a first end (Ta) of said Pipe (T); c) starting the spraying of said polymer coating by said sprayer (120) and actuating a translation of said sprayer (120) towards a second end (Tb) of said pipe (T) opposite said first end (Ta); d) translating said lamp (10) with said head (40) at said first end (Ta); e) starting the injection of said inert gas by said first injection means (130),
starting the emission of said ultraviolet radiation by said lamp (10) and actuating a translation of said lamp (10) towards said second end (Tb).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102023000026763 | 2023-12-15 | ||
| IT202300026763 | 2023-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025126125A1 true WO2025126125A1 (en) | 2025-06-19 |
Family
ID=89897431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2024/062616 Pending WO2025126125A1 (en) | 2023-12-15 | 2024-12-13 | Lamp for curing polymer coatings, plant for internally coating pipes comprising such a lamp and method for internally coating pipes actuated by such a plant |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2025126125A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009021644A2 (en) * | 2007-08-14 | 2009-02-19 | Brandenburger Patentverwertung Gbr | Method and device for renewing pipelines |
| WO2018127583A1 (en) * | 2017-01-06 | 2018-07-12 | Per Aarsleff A/S | Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipeline |
-
2024
- 2024-12-13 WO PCT/IB2024/062616 patent/WO2025126125A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009021644A2 (en) * | 2007-08-14 | 2009-02-19 | Brandenburger Patentverwertung Gbr | Method and device for renewing pipelines |
| WO2018127583A1 (en) * | 2017-01-06 | 2018-07-12 | Per Aarsleff A/S | Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE112014003426B4 (en) | Composite elliptical reflector for curing optical fibers | |
| DE10202311B4 (en) | Apparatus and method for the plasma treatment of dielectric bodies | |
| EP2588295B1 (en) | Method and device for sterilizing preforms | |
| RU2424327C2 (en) | System of quenching thermally treated metal items with spraying | |
| AU2010325875B2 (en) | Coaxial laser assisted cold spray nozzle | |
| JP2004506932A (en) | Lamp structure with elliptical reflector for uniformly illuminating optical fiber surface and method of use thereof | |
| CN103319100B (en) | Ultraviolet curing equipment and method for optical fiber coating | |
| EP3168201B1 (en) | Intensity adjustable uv curing equipment for optical fiber coating | |
| EP2454066B1 (en) | Method and device for blow-molding containers | |
| CN105874268B (en) | Device for solidify coating radiation energy | |
| US20060201418A1 (en) | Nozzle for cold spray and cold spray apparatus using same | |
| WO2025126125A1 (en) | Lamp for curing polymer coatings, plant for internally coating pipes comprising such a lamp and method for internally coating pipes actuated by such a plant | |
| JP6129522B2 (en) | Apparatus and method for performing a PCVD deposition process | |
| JP2011253808A (en) | Uv led-curing assembly | |
| CN1653002A (en) | Double-walled chamber for ultra violet radiation treatment of liquids | |
| AR029354A1 (en) | APPARATUS AND PROCESS FOR FUSION SPINNING TO SPIN CONTINUOUS POLYMERIC FILAMENTS | |
| JP6311846B2 (en) | Heat treatment apparatus, heat treatment method for steel material, and hot bending method for steel material | |
| JPS61259775A (en) | Low pressure mist jet apparatus | |
| CN100406586C (en) | Reduced mist laser shock peening | |
| US20080292259A1 (en) | Multi-color curved multi-light generating apparatus | |
| CN110073033B (en) | Cold spray apparatus with large area conformal deposition capability | |
| US20110121108A1 (en) | Plasma polymerization nozzle | |
| KR870007559A (en) | Combination for depositing materials on flat substrates | |
| US6325981B1 (en) | Apparatus and method for curing a photocurable coating provided on a fiber | |
| US20190193113A1 (en) | Irradiation systems for curing targets, related curing systems, and related methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24837146 Country of ref document: EP Kind code of ref document: A1 |