• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A liner device for sealing a well or tank with an internal geometry is described. The liner device comprises a liner bag and a fastening device for attaching the liner bag to the well. The liner bag is made of a flexible material which is resistant to preferably acid-, base-, grease-, oil- or petrol-containing liquids, the liner bag having a design which makes it possible to line and thereby seal the inner geometry of the well.
    公开号:DK201600152A1
    申请号:DKP201600152
    申请日:2016-03-14
    公开日:2017-06-26
    发明作者:Leif Hansen
    申请人:Ermo Glasfiber Aps；
    IPC主号:
    专利说明:

    Lining device
    Description
    FIELD OF THE INVENTION
    The present invention relates to a liner device for sealing a well or a tank. More specifically, the present invention relates to a liner device comprising a liner bag and a fastening device for attaching the liner bag to the well or tank.
    Background of the Invention
    Wells and tanks are used for many different purposes. In connection with e.g. collecting oil and gasoline from a laundry room, an oil separator is used, consisting of a well with an inlet pipe and an outlet pipe.
    Today there are a large number of untested installations. The leaking installations pose a high risk of release of toxic substances and a consequent pollution. Thus, a number of attempts have been made to seal leaky installations.
    A typical way to seal a leak in a well or tank is to empty the well or tank and seal with a curing epoxy or asphalt. One of the challenges, however, is that the installations often have different geometries and thus have to be handled differently. Furthermore, it is a great challenge that the groundwater table often prevents efficient emptying or complicates the drying process.
    From EP 0 796 717 A1 a liner device for sealing a well is known. The lining device has an internal geometry and comprises a lining bag made of a flexible and acid-resistant material, more particularly a textile wetted with liquid resin, and with an oversize which makes it possible to line and seal the inner geometry of the well. The liner bag comprises a cylindrical part and a lower part with a number of joints. However, liner bags may shift as they are not attached and there is a risk of low cake.
    It is thus desirable to provide an alternative way of sealing leaky wells and tanks.
    Formula of the invention
    The object of the present invention is to provide a device with which it is possible to seal a well or a tank in a simple and efficient manner. It is also an object of the present invention to provide a device with which it is possible to seal wells or tanks of different geometries.
    The object of the present invention is achieved with a method as defined in claim 1 and with a lining device as defined in claim 1. Preferred embodiments are defined in the subclaims, explained in the following description and illustrated in the accompanying figures.
    The liner device according to the invention is a liner device for sealing a well or a tank with an internal geometry, which liner device comprises a liner bag and a fastening device for attaching the liner bag to the well, the liner bag being made of a flexible material which is durable. in the case of preferably acid-, base-, grease-, oil- and / or petrol-containing liquids, the liner bag having a design which makes it possible to line and thereby seal the internal geometry of the well or tank, and wherein the liner device comprises at least one sleeve which comprises a pipe element and a flange extending around the pipe element, the sleeve being arranged to be at least partially inserted into a pipe extending at least partially through one of the side walls of the well or tank. In the following, the term "well" is used as a significant well or tank, although it is not mentioned in all cases that it is used for wells and tanks.
    This makes it possible to specify a device with which it is possible to seal a well or a tank in a simple and efficient manner. It is also possible to specify a device with which it is possible to seal wells or tanks with different geometries.
    The liner device according to the invention is a liner device for sealing a well or a tank with an internal geometry. The liner device can be used for sealing or preventing leakage of any type of fire and tank with different geometry and construction.
    The liner device comprises a liner bag and a fastening device for attaching the liner bag to the well or tank. This makes it possible to ensure that the liner bag is placed and fastened along the inside of the well or tank.
    It is possible to use all suitable types of fastening devices for fastening the liner bag to the well or tank. It is preferred that a mechanical fastening device be used to fasten the liner bag to the well or tank.
    The liner bag is made of a flexible material which is resistant to preferably acid-, base-, grease-, oil- or petrol-containing liquids.
    This makes it possible to ensure that the liner bag stays tight. The lining bag can thus prevent e.g. acid-, base-, grease-, oil- or petrol-containing liquids in passing the liner bag. This makes it possible to ensure an effective seal of wells and tanks containing liquids containing acid, base, grease, oil and petrol.
    The liner bag has a design that makes it possible to liner and thereby seal the inner geometry of the well.
    This makes it possible to seal wells and tanks with different geometries in a simple and efficient way.
    It can be an advantage that the liner bag is oversized in relation to the internal geometry. This ensures that the bag can line the inside of a well or tank, even if projecting elements such as e.g. a bounce. The use of an oversized liner bag relative to the internal geometry also ensures that the same liner bag can be used to seal different wells and tanks.
    It is important to emphasize that it is possible that the liner bag can be made in different sizes and geometries.
    The liner assembly comprises at least one sleeve comprising a rudder member and a flange extending around the rudder member, the sleeve being adapted to be at least partially inserted into a rudder extending at least partially through one of the side walls of the well or tank.
    Thus, it is possible to provide a seal of the area around the rudder extending into the well or tank e.g. at the passage of its side wall.
    It may be an advantage for the flange to have a geometry which essentially corresponds to the internal geometry of the well or tank in the area around which the sleeve is arranged to be fitted with one of the side walls of the well or tank.
    Thus, it is possible to provide a tight seal of the area around the rudder extending into the well or tank e.g. by passing its side wall.
    It can be an advantage that a sealing joint material is arranged between the flange and the liner bag.
    This makes it possible to seal the area around the flange and the rudder element by compressing the sealing joint material. Thus, a sealing seal is established between the flange and the side walls of the well or tank and a pipe provided in the well or tank in order to enable and remove liquid from the well or tank through the channel provided in the pipes, respectively.
    It may be an advantage to have a sleeve inserted in the inner part of the channel of the rudders. The sleeve can thus, with the aid of the rudder element and the flange extending around the rudder element, ensure that the flange is brought into abutment with the side walls of the well or tank. It is possible to use a sealing joint material which, by compression, ensures that a sealing seal is established between the flange and the side walls of the well or tank and the pipe.
    It may be advantageous for the liner device to comprise a fastening band arranged to be fastened to the inside of the well or tank.
    This makes it possible to bring the fastening band into abutment with the inside of the well or tank and thereby ensure that the liner bag is held relative to the inside of the well or tank.
    It may be advantageous for the fastening band to be equipped with pre-drilled holes, through which holes it is possible to insert screws for fastening the fastening band to the well or the side wall of the tank.
    It may be an advantage for the fastening band to be attached to the side wall of the well via fastening means arranged to be fastened to the side wall of the well or tank.
    This ensures a secure mechanical attachment of the attachment band to the side wall of the well.
    The fastening means used can advantageously be screws which are inserted through huils arranged in the fastening band.
    The fastening band can advantageously be made of metal. The fastening band can advantageously be designed as a flat band with a uniform cross-sectional geometry.
    It may be an advantage for the liner device to comprise several fastening straps arranged offset relative to each other.
    This makes it possible to ensure that the liner bag is attached to the inside of the well or tank in a suitable and secure manner.
    It may be advantageous for at least one fastening band to comprise a first end and a second end, the two ends overlapping each other, the fastening band comprising an adjusting device arranged to displace the first end relative to the second end. Thus, it is possible to expand and tighten the fastening band, respectively, by displacing the first end of the fastening band relative to the second end of the fastening band.
    It may be an advantage that a bottom plate is provided in the bottom of the liner bag, arranged to at least partially cover the bottom piece of the well or tank.
    This makes it possible to press the lower part of the liner bag against the bottom of the well or tank. It is also possible to seal any joints of the liner bag.
    It may be an advantage that a number of holes are provided in the base plate and / or the fastening band for passing through screws or other fastening means.
    This ensures that screws or other fastening means can be used for fastening a bottom plate in the bottom piece of the well or tank. It is also ensured that the screws or other fasteners are distributed in an appropriate manner. It is thus possible to ensure that the screws or the other fastening means are distributed with an even distribution with a suitable distance.
    It is preferred that the bottom plate be arranged to be mechanically attached to the bottom piece of the well or tank by screwing the bottom plate into the bottom piece.
    It may be an advantage for the liner device to comprise a liner bag with a cylindrical part and a lower part with a number of joints. However, the joints are arranged to be covered and thus sealed by a bottom plate. It is also possible to use a layer of sealing joint material in order to establish a complete key attachment of the liner bag to the bottom plate.
    It may be convenient for the liner device to comprise a liner bag with a cylindrical part and a lower part with a number of joints.
    This makes it possible to use the liner bag for sealing wells and tanks with an inner cylindrical geometry.
    It can be an advantage that the joints are arranged to be covered and thus sealed by a bottom plate. It is thus possible to use a layer of sealing joint material in order to establish a complete key attachment of the liner bag to the bottom plate.
    Figure description
    The invention will be explained in the following with reference to the accompanying drawing, in which
    FIG. 1 shows a schematic illustration of a well arranged for collecting oil from a car wash,
    FIG. 2A shows a schematic cross-sectional view of a liner device according to the invention,
    FIG. 2B shows a schematic illustration of a sleeve according to the invention seen from the front,
    FIG. 2C shows a schematic illustration of the device shown in FIG. 2A and in FIG. 2B shows the socket installed in a well,
    FIG. 3A shows a schematic cross-sectional view of a liner device according to the invention, seen from above,
    FIG. 3B shows a schematic cross-sectional view of the device shown in FIG. 3A according to the invention, seen from the side,
    FIG. 3C shows a schematic perspective view of the device shown in FIG. 3A or in FIG. 3B,
    FIG. 4A shows a schematic illustration of a first adjusting device according to the invention,
    FIG. 4B shows a schematic illustration of another adjusting device according to the invention and
    FIG. 5 shows a schematic illustration of a liner device according to the invention mounted on a well.
    Detailed description
    It should be noted at the outset that the accompanying drawing merely illustrates non-limiting embodiments. A number of other embodiments will be possible within the scope of the present invention. In the following, corresponding or identical elements in the different embodiments will be denoted by the same reference numerals.
    FIG. 1 illustrates a schematic illustration of a well 4 arranged to collect oil from a car wash or other oil-leaking installation.
    The well 4 consists of a bottom piece 52, on top of which a number of side walls 24 are stacked built up as cylindrical elements, the load axes of which extend parallel to the load axis X of the well. The upper part of the well 4 comprises an upwardly tapered top element 58 having a conical geometry. In the lower part of the well 4 a first and a second pipe 22 are connected, through which pipes it is possible to supply and remove liquid 54 from the well 4 through the channels 22 'provided in the pipes. At the top of the well 4 a cover 60 is placed, which partly closes the well 4 and partly makes it possible to drive over the surrounding earth surface 62 and over the well 4. The cover 60 may be made of metal in order to obtain large mechanical strength, so that heavy traffic can pass the well 4.
    A level sensor 50 is provided in the liquid 54 for the purpose of continuously monitoring the liquid level 56 so that an alarm can be sounded in the event of overfilling of the well 4.
    It can be seen that in one side wall 24 'of the well a leak 16 has formed, through which liquid can seep into the surrounding soil 14.
    This is critical in cases where well 4 contains e.g. acid-, base-, grease-, oil- or petrol-containing liquids which are sources of pollution.
    Since different wells 4 have different internal geometry 8, sealing of leaks will often require individual inspection of the well 4, after which it is possible to provide an individually adapted seal. It is thus desirable to be able to provide an alternative to the known methods by which leaky wells and tanks can be sealed.
    FIG. 2A illustrates a schematic cross-sectional view of a liner device 2 according to the invention. The liner device 2 comprises a liner bag 6, which is arranged on the inside of the well 4. The liner bag 6 is furthermore a short distance into the tube 22. Outside the part of the liner bag 6 which is fast into the tube 22, there is a layer of sealing joint material 30 in order to establish a completely tight attachment of the liner bag 6 to the inside of the pipe.
    A sleeve 12 is inserted in the inner part of the rudder channel 22 '. The sleeve 12 comprises a rudder element 12 "and a flange 12 'extending around the rudder element 12". The flange 12 'is abutted against the side walls 24 of the well, whereby the sealing joint material 30 is compressed. Thus, a sealing seal is established between the flange 12 'and the side walls 24 of the well and the pipe 22.
    Screws 18 are shown, which are arranged to subsequently be screwed into the tube 22 or alternatively into the side wall 24. Hereby a mechanical fastening of the sleeve 12 to the tube 22 or to the side wall 24 is achieved.
    FIG. 2B illustrates a schematic front view of a sleeve 12 according to the invention. It is seen that the flange 12 'of the sleeve extends transversely of the pipe piece 12 "of the sleeve. The pipe piece 12" has a cylindrical shape.
    FIG. 2C shows a schematic illustration of the device shown in FIG. 2A and in FIG. 2B installed in a well 4. It can be seen that the rudder piece 12 "of the sleeve is fast into the rudder 22 and that a slot 26 is provided in the part of the sleeve 12 extending to the left of the rudder 22, a liner bag 6 is inserted. To illustrate the gap 26 more clearly, a liner bag 6 is not inserted in the part of the sleeve 12 which extends to the right of the rudder 22. In practice, the liner bag will have to cover the entire inside of the side wall 24. The example shown in Fig. 2C is for the purpose of illustrating that there is a gap between the flange 12 'and the inside of the side walls 24 of the well. As illustrated in Fig. 2A, it is preferred that in connection with insertion of the liner bag 6 in the tube 22, a layer of sealing joint material (not shown) is used in order to establish a completely tight attachment of the liner bag 6 to the inside of the tube 22 and the side wall 24.
    It is seen that the flange 12 'of the sleeve has a geometry which matches the inside of the well 4. The flange 12' of the sleeve thus fits the inside of the side wall 24.
    FIG. 3A shows a schematic cross-sectional view of a liner device 2 according to the invention, seen from above. The liner device 2 is attached to the inside of a cylindrical well 4. The liner device 2 comprises a liner bag 6 attached to the inside of the side wall 24 of the well 24. The liner bag 6 is made of a flexible material which is resistant to acid, base, greasy, oily or petrol liquids. The liner bag 6 has a design which makes it possible to feed and thereby enter the internal geometry of the well.
    The liner device 2 comprises a fastening band 20 extending along the inside of the side wall 24 of the well. Although not shown, fastening band 20 will typically overlap itself along a part of the inside of the side wall 24 of the well. The fastening band 20 may be made of a metal, such as. stainless steel, plastic or other suitable material.
    The fastening band 20 is attached to the side wall 24 of the well via screws 18, which are arranged to be screwed into the side wall 24 of the well. This ensures a secure mechanical fastening of the fastening band 20 to the side wall 24 of the well.
    FIG. 3B shows a schematic cross-sectional view of the device shown in FIG. 3A according to the invention, seen from the side. It can be seen that a number of fastening straps 20 are arranged along the inside of the liner bag 6. The fastening straps 20 are arranged at the same distance D between each other in order to ensure a smooth and secure fastening, the liner bag 6 following the inside of the well. In an embodiment according to the invention, the distance D between the neighboring fastening bands 20 is approx. 60 cm.
    It is seen that the fastening straps 20 are arranged to be fastened to the inside of a well or a tank by means of a fastening device 10 consisting of screws 18, 18 'and fastening straps 20, the screws 18, 18' being arranged to be fast through the fastening straps 20. At the bottom of the liner bag 6 a bottom plate 28 is provided, in which a number of holes are provided for piercing screws 18 ". The bottom plate 28 is arranged to be mechanically fastened to the bottom piece of the well by screwing the bottom plate 28 fixed to the base.
    FIG. 3C shows a schematic perspective view of the device shown in FIG. 3A and in FIG. 3B. It can be seen that the liner device 2 comprises a liner bag 6 with a cylindrical part and a lower part with a number of joints 6 '. However, the joints 6 'are arranged to be covered and thus sealed by a bottom plate 28 as shown in Figs. 3B.
    It is possible to use a layer of keying joint material (not shown) in order to establish a completely tight attachment of the liner bag 6 to the bottom plate 28.
    FIG. 4A shows a schematic illustration of a first adjusting device 64 according to the invention. The adjusting device 64 is adapted to extend and tighten the fastening strap 20 by displacing the first end 20 'of the fastening strap 20 relative to the second end 20 "of the fastening strap 20 along the longitudinal axis Y of the fastening strap.
    The adjusting device 64 is attached to both the first end 20 'of the fastening strap 20 and the second end 20 "of the fastening strap 20. The adjusting device 64 comprises a threaded rod 31 adapted to be displaced relative to one on the front end 20' of the fastening strap. 20 attached threaded block / countertop by rotating on the countertop 32 attached to one end of the threaded rod 31. When the threaded rod 31 is rotated, it will be displaced via its rotation, so that the other end 20 "of the fastening band 20 is displaced ( with the arrow), the other end of the threaded rod 31 being attached to the other end 20 "of the fastening band 20 via a fastening device comprising two laser motors 36, 38.
    FIG. 4B shows a schematic illustration of another adjusting device 64 according to the invention. This adjusting device 64 is also adapted to expand and tighten the fastening strap 20 by displacing the first end 20 'of the fastening strap 20 relative to the second end 20 "of the fastening strap 20.
    The adjusting device 64 is attached to both the first end 20 'of the fastening strap 20 and the second end 20 "of the fastening strap 20. The adjusting device 64 comprises a threaded rod 31 arranged to be displaced in a direction perpendicular to the longitudinal axis Y of the fastening strap. attached to the distal end of the threaded rod 31 is a rod-shaped connecting member 46 rotatably connected to a first arm 42 and a second arm 44 via pivot 40. The first arm 42 is rotatably attached to a first rod 48 'via a pivot joint. 40, while the second arm 44 is rotatably attached to a second rod 48 via a second pivot joint 40.
    The connecting element 46 is attached to the threaded rod 31 via two laser semitrailers 36, 38. By rotating a threaded block / counter 34 attached to the threaded rod 31, it is possible to rotate the threaded rod 31 so as to displace the connecting member 46 against the fastening band 20 ( as shown by arrows), so that the first end 20 'of the fastening band 20 is displaced relative to the second end 20 "of the fastening band 20.
    FIG. 5 shows a schematic illustration of a lining device 2 according to the invention mounted on a well 4, which is arranged for collecting oil from a laundry hall or other oil-leaking installation.
    The well 4 consists of a bottom piece 52, on top of which are stacked a number of side walls 24 constructed as cylindrical elements, the longitudinal axes of which extend parallel to the longitudinal axis X of the well. The upper part of the well 4 comprises an upwardly tapered top element 58 having a conical geometry. In the lower part of the well 4 a first and a second pipe 22 are connected, through which pipes it is possible to supply and remove liquid 54 from the well 4 through the channels 22 'provided in the pipes. At the top of the well 4 a cover 60 is placed, which partly closes the well 4 and partly makes it possible to drive over the surrounding earth surface 62 and over the well 4. The cover 60 may be made of metal in order to obtain large mechanical strength, so that heavy traffic can pass the well 4.
    A leak 16 has formed in one side wall 24 'of the well, through which liquid can seep into the surrounding soil 14. This is critical in cases where the well 4 contains e.g. acid, base, oil or petrol liquids which are sources of pollution.
    A liner device 2 according to the invention is mounted on the well 4. The liner device 2 comprises a liner bag 6 attached to the side walls 24 of the well by means of a series of fastening devices 10, each comprising a fastening band 20, in which screw holes with screws are provided 18. The liner bag 6 is thus attached to the side walls 24 of the well by means of these fastening bands 20 and screws 18. The leakage 16 is thus sealed by the bag 6.
    The lower part of the liner bag 6 is fixed to the bottom piece 52 of the well by means of a bottom plate 28, in which screw holes are provided. Screws 18 "are inserted through the screw holes. The bottom plate 28 is thus screwed into the bottom piece 52 of the well by means of the bottom plate 28 and the screws 18".
    A sealing sleeve 12 is inserted in each of the two pipes 22, which in the lower part of the well 4 are connected to supply and remove liquid 54 from the well 4, respectively, through the channels 22 'provided in the pipes. The sealing sleeves 12 correspond to that in FIG. 2. The sealing sleeves 12 are fixed to the tubes 22 by means of screws 18 '. In addition, on the outside of the part of the liner bag 6 which is fastened into the tube 22, a layer of sealing joint material 30 is applied in order to establish a completely tight attachment of the liner bag 6 to the inside of the tube.
    The sealing sleeves 12 are inserted into the inner part of the channel 22 'of the pipe. The sleeves 12 comprise a pipe element and a flange extending around the pipe element. The flange is abutted against the side walls 24 of the well, whereby the sealing joint material 30 is compressed. Thus, a sealing seal is established between the flange and the side walls 24 of the well and the pipes 22.
    By using a lining device 2 according to the invention, it is possible to provide a device with which it is possible to seal a well 4 or a tank in a simple and efficient manner and to seal wells 4 or tanks with different geometries.
    Reference numerals 2 Lining device 4 Brpnd 6 Lining bag 6 'Assembly 8 Inner geometry 10 Fastening device 12 Sleeve 12' Flange 12 "Rprelement 14 Ground 16 Resilience 18, 18 ', 18" Fastening element 20 Fastening band 20' First end 20 "Second end 22 Rpr 22 'Duct 24, 24 'Side wall 26 Slot 28 Base plate 30 Joint material 31 Threaded rod 32 Mptrik 34 Threaded block / mptrik 36, 38 Lasemptrik 40 Swivel joint 42, 44 Arm 46 Connecting element 48, 48' Rod 50 Level sensor 52 Bottom piece
    权利要求:
    Claims (11)
    [1]
    Liner device (2) for sealing a well (4) or a tank with an internal geometry (8), which liner device (2) comprises a liner bag (6) and a fastening device (10) for attaching the liner bag (6) for the well (4), characterized in that the liner bag (6) is made of a flexible material which is resistant to preferably acid-, base-, grease-, oil- or petrol-containing liquids, wherein the liner bag (6) has a design which makes it possible to feed and thereby enter the internal geometry (8) of the well or tank, and in that the liner device (2) comprises at least one sleeve (12) comprising a rudder element (12 ") and a flange (12 ') extending around the pipe element (12 "), the sleeve (12) being arranged to be at least partially inserted into a pipe (22) extending at least partially through one of the side walls (24) of the well or tank; .
    [2]
    Lining device (2) according to claim 1, characterized in that the lining bag (6) is oversized relative to the inner geometry (8),
    [3]
    Lining device (2) according to claim 1 or 2, characterized in that the flange (12 ') has a geometry which substantially corresponds to the internal geometry of the well or tank in the area around which the sleeve (12) is arranged to be inserted in abutment against one of the side walls of the well or tank (24).
    [4]
    Lining device (2) according to Claim 2 or 3, characterized in that a sealing joint material (30) is arranged between the flange (12 ') and the lining bag (6).
    [5]
    Liner device (2) according to one of the preceding claims, characterized in that the liner device (2) comprises a fastening band (20) which is adapted to be fastened to the inside of the inner sink (24) of the well or tank.
    [6]
    Feeding device (2) according to one of the preceding claims, characterized in that the fastening band (20) is fastened to the side wall (24) of the well via fastening means (18) arranged to be fastened to the side wall (24) of the well or tank.
    [7]
    Liner device (2) according to one of the preceding claims 5-6, characterized in that the liner device (2) comprises several fastening straps (20) arranged offset relative to each other.
    [8]
    Lining device (2) according to one of the preceding claims 5-7, characterized in that at least one fastening band (20) comprises a first end (20 ') and a second end (20 "), the two ends (20) 20 ', 20 ") overlap each other, the fastening band (20) comprising an adjusting device (64) adapted to displace the first end (20') relative to the second end (20").
    [9]
    Lining device (2) according to one of the preceding claims, characterized in that a bottom plate (28) is provided at the bottom of the lining bag (6), arranged to at least partially cover the bottom piece (52) of the well or tank.
    [10]
    Lining device (2) according to claim 10, characterized in that a number of holes are provided in the bottom plate (28) and / or the fastening band (20) for the passage of screws (18, 18 ', 18 ") or other fastening means.
    [11]
    Liner device (2) according to claim 1 or claim 2, characterized in that the liner device (2) comprises a liner bag (6) with a cylindrical part and a lower part with a number of joints (6 ').
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    同族专利:
    公开号 | 公开日
    DK178948B1|2017-06-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1996005378A1|1994-08-09|1996-02-22|Kjeld Povl Nielsen|A method of lining a well or a pipe and a support ring for use when carrying out the method|
    JP2837385B2|1996-03-19|1998-12-16|株式会社湘南合成樹脂製作所|Manhole lining material and manhole lining method|
    DE10315559A1|2003-04-05|2004-12-30|Wolfgang Schwarz|Method for reconstruction of sewage shaft system uses sewer constructed through it, and plastic shaft lining aligned through and connected to, sewer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201600152A|DK178948B1|2016-03-14|2016-03-14|Lining device|DKPA201600152A| DK178948B1|2016-03-14|2016-03-14|Lining device|
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