WO2022015610A2 - Purging apparatus for a coater - Google Patents
Purging apparatus for a coater Download PDFInfo
- Publication number
- WO2022015610A2 WO2022015610A2 PCT/US2021/041204 US2021041204W WO2022015610A2 WO 2022015610 A2 WO2022015610 A2 WO 2022015610A2 US 2021041204 W US2021041204 W US 2021041204W WO 2022015610 A2 WO2022015610 A2 WO 2022015610A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure mixing
- mixing device
- pipeline
- inlet
- purging
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
- B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
Definitions
- the present invention relates to an air purging apparatus for a coater.
- the present invention relates to an air purging apparatus for a coater for purging mixed components from a pipeline coating apparatus disposed within the pipeline at a pipeline refurbishing or manufacturing site.
- the present invention relates to an air purging apparatus for a coater for coating an internal surface of a pipeline.
- the coater includes a high-pressure mixing device and a spin head.
- the high-pressure mixing device defines a high-pressure mixing chamber.
- the arrangement is such that in an application disposition of the high-pressure mixing device, the high-pressure mixing chamber is connected to two components at high pressure such that the components mix and are activated within the high-pressure mixing chamber.
- the high-pressure mixing device when the high-pressure mixing device is moved to a purging disposition, the high-pressure mixing chamber is immediately sealed from the component supplies. Consequently, a source of pressurized air easily purges or blows out the residual activated coating material from the high-pressure mixing device including the high-pressure mixing chamber.
- the apparatus includes a coating head defining a conical surface having a first and a second end.
- the arrangement is such that in use of the apparatus, the conical surface guides the coating material towards the internal surface of the pipe.
- a motor is selectively connected to an energy source such that when the motor is connected to the energy source, the motor rotates the coating head.
- the arrangement is such that a ribbon of the coating material flows radially outwardly from the second end of the conical surface towards the internal surface of the pipe.
- the conical surface of the coating head or spin head is disposed at a relatively large angle relative to the axis of rotation of the conical surface.
- the angle may be 45 degrees or more.
- a baffle is disposed adjacent to the upstream or first end of the conical surface so that coating material flowing from the high pressure mixing chamber impinges on the baffle and is deflected by the baffle towards and onto the first end of the conical surface where the coating material rapidly flows towards the second or downstream end of the conical surface.
- the coating material flows to the second or downstream end of the conical surface where the coating material tends to form a thin radially extending ribbon which is disposed almost normal to the axis of rotation of the conical surface.
- Such radial curtain tends to strike the internal surface of the pipe in a radial direction substantially normal to the axis of rotation of the conical surface.
- the high-pressure mixing chamber is selectively connected to a supply of a first coating component disposed at a first location adjacent to the high-pressure mixing chamber for selective fluid communication with the high-pressure mixing chamber. Additionally, the high-pressure mixing chamber is also selectively connected to a supply of a second coating component disposed at a second location adjacent to the high-pressure mixing chamber for selective fluid communication with the high-pressure mixing chamber.
- a control is connected to the high-pressure mixing device for selectively moving the high-pressure mixing chamber between the application disposition and the purging disposition.
- the arrangement is such that the first and second coating components simultaneously flow into the high-pressure mixing chamber when the high-pressure mixing chamber is disposed in the application disposition thereof. Also, the first and second coating components are sealed from the high-pressure mixing chamber when the high-pressure mixing chamber is disposed in the purging disposition thereof.
- the source of pressurized air is supplied such that in the purging disposition, pressurized air flows through the inlets into the high-pressure mixing chamber so that any residual activated material is blown through and out of the high-pressure mixing chamber through the outlet.
- the present invention provides a unique apparatus for internally coating pipes including pipes having an inside diameter of 2 inches or greater.
- the thin film of coating material on the conical surface is minimal requiring no clean up or solvents during completion of the coating operation.
- the conical surface spins at about 5000 rpm, so, the buildup of residual coating material on the conical surface is negligible.
- a primary object of the present invention is the provision of a coater and purging apparatus which coats an internal surface of a pipe including a pipe having an inside diameter of 2 inches or greater.
- Another objective of the present invention is the provision of a coater and purging apparatus which reduces the amount of coating material used in a coating operation.
- Yet another object of the present invention is the provision of a coater and purging apparatus which avoids the problems associated with a clean-up operation after the completion of a coating operation.
- a further object of the present invention is the provision of a coater and purging apparatus which permits an interruption of a coating operation without introducing any need for purging the coating apparatus with solvent.
- the present invention relates to an air purging and coater apparatus for purging mixed components from a coating apparatus disposed within a pipeline at a pipeline refurbishing or manufacturing site.
- the apparatus includes a remote-controlled machine for insertion within the pipeline at the pipeline refurbishing or manufacturing site.
- the remote-controlled machine includes a drive for controllably moving the remote- controlled machine internally within the pipeline.
- a high-pressure mixing device defines a first inlet which is controllably connected to a pressurized source of a first component.
- the high- pressure mixing device also defines a second inlet which is controllably connected to a further pressurized source of a second component.
- a high-pressure mixing chamber defined by the high- pressure mixing device is connected to the first and second inlets such that the high-pressure mixing chamber mixes the first and second components.
- the high-pressure mixing device defines an outlet connected to the high-pressure mixing chamber for a flow therethrough of the mixed components.
- a spin head defines an internal conical surface which has an apex which cooperates with the outlet of the high-pressure mixing device for receiving the flow of the mixed components.
- the spin head includes a baffle which is disposed adjacent to the apex such that when the spin head is rotated, the mixed components from the outlet are deflected by the baffle onto the internal conical surface so that the mixed components are applied to an inside surface of the pipeline at the refurbishing or manufacturing site.
- the high-pressure mixing device is controllably movable from an application disposition thereof to a purging disposition.
- the application disposition is such that the first inlet and the second inlet are aligned with and in fluid communication with the respective pressurized source and further pressurized source so that the components flow to the high-pressure mixing chamber and thereafter are applied to the inside surface of the pipeline.
- the first and second inlets are moved out of alignment with the pressurized sources so that the flow of the components is terminated.
- a source of pressurized air flows into and through the first and second inlets into the high-pressure mixing chamber and from the high-pressure mixing chamber through the outlet for purging any residual mixed components from the high-pressure mixing chamber thereby avoiding any need for the use of potentially hazardous solvents together with any attendant potentially life threatening conditions that could result from the introduction of such solvents into the pipeline at the pipeline refurbishing or manufacturing site.
- the drive selectively moves the remote-controlled machine along the pipeline selectively in a forward direction and a reverse direction.
- the remote-controlled machine further includes a housing having a forward extremity and a rearward extremity.
- the housing defines a bore which extends from the forward extremity to the rearward extremity of the housing for the slidable reception therein of the high-pressure mixing device.
- the housing defines a cross bore which is disposed normal to the bore.
- the cross bore has a first side and a second side.
- the bore is disposed between the first and second sides of the cross bore such that when the high-pressure mixing device is in the application disposition and the purging disposition, the inlets are exposed to the cross bore.
- the remote-controlled machine further includes a first coupling secured to the housing adjacent to the first side of the cross bore and a second coupling secured to the housing adjacent to the second side of the cross bore such that the high-pressure mixing device and the cross bore are disposed between the first and second couplings.
- a first seal is movably secured to the first coupling and is disposed within the cross bore between the first coupling and the first inlet.
- a second seal is movably secured to the second coupling and is disposed within the cross bore between the second coupling and the second inlet.
- the arrangement is such that when the high-pressure mixing device is in the application disposition, the first component flows through the first coupling and then through the first seal into the first inlet. At the same time, the second component flows through the second coupling then through the second seal into the second inlet.
- the first seal is movably urged axially relative to the first inlet into sealing engagement with the high-pressure mixing device and the aligned first inlet.
- the second seal is movably urged axially relative to the second inlet into sealing engagement with the high-pressure mixing device and the aligned second inlet.
- the high-pressure mixing device defines a first planar surface and a second planar surface. The arrangement is such that the first seal slidably engages the first planar surface and the second seal slidably engages the second planar surface when the high-pressure mixing device is moved between the application disposition and the purging disposition.
- the remote-controlled machine further includes a first compression spring which is disposed between the first coupling and the first movable seal for urging the first seal axially towards the first inlet.
- a second compression spring is disposed between the second coupling and the second movable seal for urging the second seal axially towards the second inlet.
- Fig. l is a side elevational view of an air purging and coater apparatus according to the present invention.
- Fig. 2 is an exploded view of the remote-controlled apparatus shown in Fig. 1;
- Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2 and shows the apparatus in the application disposition;
- Fig. 4 is a similar view to that shown in Fig. 1 but is partially in section;
- Fig. 5 is a similar view to that shown in Fig. 3 but shows the high-pressure mixing device slidably moved to the left to the purging disposition thereof;
- Fig. 6 is a view taken on the line 6-6 shown in Fig. 1;
- Fig. 7 is a view taken on the line 7-7 shown in Fig. 1;
- Fig. 8 is a view taken on the line 8-8 shown in Fig. 1;
- Fig. 9 is a view taken on the line 9-9 shown in Fig. 8;
- Fig. 10 is a view taken on the line 10-10 shown in Fig. 1;
- Fig. 11 is a view taken on the line 11-11 shown in Fig. 1;
- Fig. 12 is a view taken on the line 12-12 shown in Fig. 1;
- Fig. 13 is an enlarged view of the remote-controlled machine shown in Fig. 1;
- Fig. 14 is a view taken on the line 14-14 shown in Fig. 13;
- Fig. 15 is a similar view to that shown in Fig. 14 but with the first coupling removed to show the high-pressure mixing device in the application disposition;
- Fig. 16 is a similar view to that shown in Fig. 15 but shows the high-pressure mixing device in the purging disposition
- Fig. 17 is a view taken on the line 17-17 shown in Fig. 16;
- Fig. 18 is a view taken on the line 18-18 shown in Fig. 16;
- Fig. 19 is a view taken on the line 19-19 shown in Fig. 2;
- Fig. 20 is a view taken on the line 20-20 shown in Fig. 2; and Fig. 21 is a view taken on the line 21-21 shown in Fig. 2.
- Fig. l is a side elevational view of an air purging and coater apparatus generally designated 10 according to the present invention.
- the purging and coater apparatus 10 is for coating and then purging mixed and activated residual components 12 from the purging and coater apparatus 10 disposed in a pipeline 14 at a pipeline refurbishing or manufacturing site generally designated 16.
- the apparatus 10 includes a remote-controlled apparatus 18 for insertion within the pipeline 14 at the pipeline refurbishing or manufacturing site 16.
- the remote-controlled apparatus 18 includes a drive 20 for controllably moving the remote-controlled apparatus 18 internally within the pipeline 14.
- Fig. 2 is an exploded view of the remote-controlled apparatus 18. As shown in Fig. 2, the remote-controlled apparatus 18 includes a high-pressure mixing device generally designated 22.
- Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2.
- the high- pressure mixing device 22 defines a first inlet 24 which is controllably connected to a pressurized source of a first component 26.
- the high-pressure mixing device 22 also defines a second inlet 28 which is controllably connected to a further pressurized source of a second component 30.
- the first and second inlets 24 and 28 are selectively connected to a high-pressure mixing chamber 31 for mixing the first and second components together in the high-pressure mixing chamber 31.
- the high-pressure mixing device 22 also defines an outlet 32 connected to the high-pressure mixing chamber 31 for receiving a flow therethrough of the mixed components 12 as indicated by the arrow 34.
- Fig. 4 is a similar view to that shown in Fig. 1 but is partially in section. As shown in Fig.
- a spin head 36 defines an internal conical surface 38 which has an apex 40 which cooperates with the outlet 32 of the high-pressure mixing device 22 for receiving the flow 34 of the mixed components.
- the spin head 36 includes a baffle 42 which is disposed adjacent to the apex 40 such that when the spin head 36 is rotated, as indicated by the arrow 43, the mixed components are deflected by the baffle 42 onto the internal conical surface 38 so that the mixed components are applied to an inside surface 44 of the pipeline 14 at the refurbishing or manufacturing site 16.
- the high-pressure mixing device 22 is controllably movable as indicated by arrow 23 from an application disposition thereof as shown in Fig. 3 to a purging disposition. As shown in Fig. 3, in the application disposition, the arrangement is such that the first inlet 24 and the second inlet 28 are aligned with and in fluid communication with the respective pressurized source and further pressurized source 26 and 30 respectively so that the mixed components are applied to the inside surface 44 of the pipeline 14 as shown in Fig. 4.
- Fig. 5 is a similar view to that shown in Fig. 3 but shows the high-pressure mixing device 22 slidably moved to the left to the purging disposition thereof.
- the high-pressure mixing device 22 when the high-pressure mixing device 22 is controllably moved to the left to the purging disposition, the first and second inlets 24 and 28 respectively are moved out of alignment with the pressurized sources 26 and 30 respectively so that the flow of the mixed components 34 is terminated. Also, in the purging disposition as shown in Fig.
- a source of pressurized air 46 flows as indicated by the arrow 47 into and through the first and second inlets 24 and 28 respectively and from the inlets 24 and 28 respectively through the high-pressure mixing chamber 31 and then through the outlet 32 for purging any residual mixed components 12 from the high-pressure mixing device 22 thereby avoiding any need for the use of a potentially hazardous solvent together with any attendant potentially life threatening conditions that could result from the introduction of such solvent into the pipeline 14 at the pipeline refurbishing or manufacturing site 16.
- the drive 20 selectively moves the remote-controlled apparatus 18 through the pipeline 14 in a forward direction and a reverse direction as indicated by the arrow 49.
- the remote-controlled apparatus 18 further includes a housing 50 having a forward extremity 52 and a rearward extremity 54.
- the housing 50 defines a bore 56 which extends from the forward extremity 52 to the rearward extremity 54 for the slidable reception therein of the high-pressure mixing device 22.
- the housing 50 defines a cross bore 58 which is disposed normal to the bore 56.
- the cross bore 58 has a first side 60 and a second side 62.
- the bore 56 is disposed between the first and second sides 60 and 62 respectively of the cross bore 58 such that when the high- pressure mixing device 22 is in either the application disposition or the purging disposition, the inlets 24 and 28 respectively are disposed within the cross bore 58.
- the remote-controlled apparatus 18 further includes a first coupling 64 secured to the housing 50 adjacent to the first side 60 of the cross bore 58.
- a second coupling 66 is secured to the housing 50 adjacent to the second side 62 of the cross bore 58 such that the high-pressure mixing device 22 and the cross bore 58 are disposed between the first and second couplings 64 and 66 respectively as shown in Fig. 3.
- a first seal 68 is movably secured to the first coupling 64 and is disposed within the cross bore 58 between the first coupling 64 and the first inlet 24.
- a second seal 70 is movably secured to the second coupling 66 and is disposed within the cross bore 58 between the second coupling 66 and the second inlet 28.
- the arrangement is such that when the high-pressure mixing device 22 is in the application disposition as shown in Fig. 3, the first component flows through the first coupling 64 and then through the first seal 68 into the first inlet 24. At the same time, the second component flows through the second coupling 66 then through the second seal 70 into the second inlet 28.
- first seal 68 is movably urged axially relative to the first inlet 24 into sealing engagement with the high-pressure mixing device 22 and the aligned first inlet 24 as shown in Fig. 3.
- second seal 70 is movably urged axially relative to the second inlet 28 into sealing engagement with the high-pressure mixing device 22 and the aligned second inlet 28 as shown in Fig. 3.
- the high-pressure mixing device 22 defines a first planar surface 72 and a second planar surface 74.
- the arrangement is such that the first seal 68 slidably engages the first planar surface 72 and the second seal 70 slidably engages the second planar surface 74 when the high-pressure mixing device 22 is moved between the application disposition shown in Fig. 3 and the purging disposition shown in Fig. 5.
- the remote-controlled apparatus 18 further includes a first compression spring 76 which is disposed between the first coupling 64 and the first movable seal 68 for urging the first seal 68 axially towards the first inlet 24 and the first planar surface 72 when in the application disposition.
- a second compression spring 78 is disposed between the second coupling 66 and the second movable seal 70 for urging the second seal 70 axially towards the second inlet 28 and the second planar surface 74.
- the forward extremity 52 of the housing 50 sealingly cooperates with the outlet 32 of the high-pressure mixing device 22 when the high-pressure mixing device is in the purging disposition thereof. Therefore, the flow of pressurized air from the source of pressurized air 46 will flow through inlets 24 and 28 though the high-pressure mixing chamber 31 and the outlet 32 for purging activated material from the high-pressure mixing device 22.
- Fig. 6 is a view taken on the line 6-6 shown in Fig. 1.
- Fig. 7 is a view taken on the line 7-7 shown in Fig. 1.
- Fig. 8 is a view taken on the line 8-8 shown in Fig. 1.
- Fig. 9 is a view taken on the line 9-9 shown in Fig. 8.
- Fig. 10 is a view taken on the line 10-10 shown in Fig. 1.
- Fig. 11 is a view taken on the line 11-11 shown in Fig. 1.
- Fig. 12 is a view taken on the line 12-12 shown in Fig. 1.
- Fig. 13 is an enlarged view of the remote-controlled apparatus shown in Fig. 1.
- Fig. 14 is a view taken on the line 14-14 shown in Fig. 13.
- Fig. 15 is a similar view to that shown in Fig. 14 but with the first coupling removed to show the high-pressure mixing device in the application disposition.
- Fig. 16 is a similar view to that shown in Fig. 15 but shows the high-pressure mixing device in the purging disposition.
- Fig. 17 is a view taken on the line 17-17 shown in Fig. 16.
- Fig. 18 is a view taken on the line 18-18 shown in Fig. 16.
- Fig. 19 is a view taken on the line 19-19 shown in Fig. 2.
- Fig. 20 is a view taken on the line 20-20 shown in Fig. 2; and Fig. 21 is a view taken on the line 21-21 shown in Fig. 2.
- the apparatus 10 is inserted into the pipeline 14.
- the apparatus 10 which includes the remote- controlled apparatus 18 has a drive 20 which enables the apparatus 10 to be remotely controlled and moved along and within the pipeline 14 at the pipeline refurbishing or manufacturing site 16.
- the high-pressure mixing device 22 remotely moved to the application disposition as shown in Fig. 3, the first component from the pressurized source of the first component 26 flows through the first inlet 24 of the high-pressure mixing device 22.
- the second component from the further pressurized source of the second component 30 flows through the second inlet 28 of the high-pressure mixing device 22.
- the first and second components under high-pressure are mixed together in the high-pressure mixing chamber 31 of the high-pressure mixing device 22.
- the mixed components then flow from the high-pressure mixing chamber 31 through the outlet 32.
- the drive 20 is remotely energized to drive the apparatus forward through the pipeline 14 at a remotely controlled speed.
- the motor for rotating the spin head 36 is energized remotely at a controlled rate of rotation.
- the arrangement is such that the mixed and consequently activated components flow from the outlet 32 of the high-pressure mixing device 22 to the baffle 42 of the spin head 36 where the activated components are deflected onto the inside surface 44 of the spin head 36 for application of the mixed activated components onto the inside surface 44 of the pipeline 14.
- the high-pressure mixing device 22 is moved by remote control so that the high-pressure mixing device 22 slides within the bore 56 of the housing 50 from the application disposition as shown in Fig. 3 to the purging disposition shown in Fig. 5. Consequently, in the air purging disposition shown in Fig. 5, the first and second inlets 24 and 28 are cut off from the high-pressure components. More particularly, the first and second inlets 24 and 28 move to the left as shown in Fig. 5 as indicated by the arrow 23.
- the outlet 32 cooperates with and seals against the forward extremity 52 of the housing 50 so that pressurized air from the source of pressurized air 46 flows through the inlets 24 and 28 and the high-pressure mixing chamber 31 for purging or blowing out any residual activated mixed components 12 through the outlet 32.
- the present invention includes the provision of an arrangement where a plurality of pipes of a standard length can be fed towards the purging and coater apparatus for coating the internal surfaces of such pipes.
- the present invention provides a unique arrangement for mixing and thereby activating two components to form a coating material for application to an internal surface of a pipe having an inside diameter of 2 inches or greater.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021309114A AU2021309114A1 (en) | 2020-07-16 | 2021-07-10 | Purging apparatus for a coater |
GB2302081.1A GB2612526A (en) | 2020-07-16 | 2021-07-10 | Purging apparatus for a coater |
CA3201928A CA3201928A1 (en) | 2020-07-16 | 2021-07-10 | Purging apparatus for a coater |
EP21841885.3A EP4182092A2 (en) | 2020-07-16 | 2021-07-10 | Purging apparatus for a coater |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/930,618 | 2020-07-16 | ||
US16/930,618 US11607705B2 (en) | 2016-04-29 | 2020-07-16 | Air purging apparatus for a coater |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2022015610A2 true WO2022015610A2 (en) | 2022-01-20 |
WO2022015610A3 WO2022015610A3 (en) | 2022-02-24 |
Family
ID=79554984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2021/041204 WO2022015610A2 (en) | 2020-07-16 | 2021-07-10 | Purging apparatus for a coater |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4182092A2 (en) |
AU (1) | AU2021309114A1 (en) |
CA (1) | CA3201928A1 (en) |
GB (1) | GB2612526A (en) |
WO (1) | WO2022015610A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023219951A1 (en) * | 2022-05-10 | 2023-11-16 | Graco Minnesota Inc. | Plural component spray gun |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6986813B2 (en) * | 2003-04-04 | 2006-01-17 | Visuron Technologies, Inc. | Sprayed in place pipe lining apparatus and method thereof |
US7591901B1 (en) * | 2009-06-02 | 2009-09-22 | Kent Weisenberg | Method and apparatus of lining pipes with environmentally compatible impervious membrane |
US10913082B2 (en) * | 2017-04-27 | 2021-02-09 | Michael Kronz | Coating apparatus |
-
2021
- 2021-07-10 GB GB2302081.1A patent/GB2612526A/en active Pending
- 2021-07-10 AU AU2021309114A patent/AU2021309114A1/en active Pending
- 2021-07-10 EP EP21841885.3A patent/EP4182092A2/en active Pending
- 2021-07-10 WO PCT/US2021/041204 patent/WO2022015610A2/en unknown
- 2021-07-10 CA CA3201928A patent/CA3201928A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023219951A1 (en) * | 2022-05-10 | 2023-11-16 | Graco Minnesota Inc. | Plural component spray gun |
Also Published As
Publication number | Publication date |
---|---|
CA3201928A1 (en) | 2022-01-20 |
AU2021309114A1 (en) | 2023-03-09 |
GB202302081D0 (en) | 2023-03-29 |
EP4182092A2 (en) | 2023-05-24 |
WO2022015610A3 (en) | 2022-02-24 |
GB2612526A (en) | 2023-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4117551A (en) | Purgeable dispensing gun for polyurethane foam and the like | |
KR20100074154A (en) | Cutting head and cutting nozzle for a liquid/abrasive jet cutting arrangement | |
CN100458262C (en) | Pipe renovating system and method | |
WO2022015610A2 (en) | Purging apparatus for a coater | |
CN102056565A (en) | Powder jet device for applying dental material | |
JP2004114040A (en) | Two component type spray gun capable of flushing/mixing solvent | |
WO1998007524A1 (en) | Plural component airless spray gun with mechanical purge | |
EP3713677B1 (en) | Plural component spray gun system | |
JPS60248324A (en) | Dispenser for mixture of liquid having mutual reactivity | |
JP5429929B2 (en) | Method and apparatus for coating one- and two-component paints using carbon dioxide | |
US10913082B2 (en) | Coating apparatus | |
US5758691A (en) | Self-sealing mixing valve | |
CA2664704C (en) | Spray gun | |
US11607705B2 (en) | Air purging apparatus for a coater | |
JP4965208B2 (en) | Two-component mixing device | |
CN106764190A (en) | A kind of combination unit that branch pipe is installed for conveyance conduit with pressure | |
US6116261A (en) | Solvent and air mixing system with air bleed backflow | |
US5586724A (en) | Tapered plug foam spray apparatus | |
EP3615225A1 (en) | A coating apparatus | |
JP3776616B2 (en) | Two-component mixing method | |
KR101206096B1 (en) | Two liquids type coating device for a small size pipe | |
JP2003033910A (en) | Mixer for two-part curing type resin | |
JP3586325B2 (en) | In-pipe coating equipment | |
JP2006322562A (en) | Check valve | |
JP2021524560A (en) | Mixing manifold and valve seal assembly |
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: 21841885 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 202302081 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20210710 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021841885 Country of ref document: EP Effective date: 20230216 |
|
ENP | Entry into the national phase |
Ref document number: 2021309114 Country of ref document: AU Date of ref document: 20210710 Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21841885 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 3201928 Country of ref document: CA |