• 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:
    The invention relates to a water collecting ring (11) for the collected removal of cooling water during wet drilling on a building wall or ceiling with a housing, on which a passage opening (19) is provided for the passage of a hollow core drill. A sealing ring (33) is arranged on the cover (17) of the housing such that it projects into the passage opening (19) and can interact in a fluid-tight manner with the hollow core drill. The passage opening (19) is bounded by a closed inner wall of the housing, and between the inner wall and an outer wall (15) of the housing, a gap is defined. Furthermore, the water collecting ring (11) comprises a suction connection (27), which is arranged on the outer wall (15) and communicates with the intermediate space, and a first and second sealing lip, which for sealingly supporting the housing to a building wall at the edges of the Inner and outer wall (15) are arranged. The outer wall (15) has a bulge (29) such that the distance between the edges of the inner and outer wall (15) in the region of the bulge (29) is increased, whereby the space in the region of the bulge (29) an enlarged volume has
    公开号:CH705017B1
    申请号:CH00427/12
    申请日:2012-03-27
    公开日:2016-02-15
    发明作者:Adnan Fidan
    申请人:Adnan Fidan；
    IPC主号:
    专利说明:

    Field of the invention
    The invention relates to a water collecting ring according to the preamble of claim 1.
    State of the art
    For the extraction of water and drilling mud in wet wells water collecting rings are used. Such water collecting rings have a housing with an outer and an inner ring, which are arranged concentrically. At the top, the rings are connected by a cover, whereby a cavity is formed between the rings. At the bottom of the cavity is open, and the edges of the rings are provided with sealing lips. On the outer ring, a suction connection is arranged, which is connectable to a suction hose. Water and drilling mud are therefore collected directly on site at the drilling site in the water collecting ring and can be sucked off, for example, by a wet-dry vacuum cleaner (NT vacuum cleaner). The water collecting ring automatically absorbs itself after switching on the NT vacuum cleaner to the ground and keeps the environment of the drilling site clean from soiling. However, the inner and outer ring must have a certain distance, so that in the cavity formed between the rings a sufficiently large collecting volume and a sufficient suction effect are present. However, this distance prevents the water collecting ring from being usable in bores which are made a short distance from laterally adjacent walls.
    The sealing lip of the inner ring has a plurality of through holes, so that the water or the drilling mud can be sucked into the cavity formed by the two rings. The passage openings are arranged relative to the suction in a fixed position. This results in the disadvantage that when the suction port is not at the lowest point during use of the water collecting ring, the water can only be sucked through the through holes of the inner sealing ring when it has accumulated and has reached the passage opening. This will affect the function of the water collecting ring at positions where the suction port is not in the lowest position.
    For overhead work, water collecting rings described above are not suitable because the cooling water required for core holes runs out of the space between the hollow core drill and the through hole of the water collecting ring for the hollow core drill.
    Object of the invention
    It is therefore an object of the invention to provide a water collecting ring, which is suitable for overhead drilling. An additional object is to provide a water collecting ring, which is also useful in drilling operations, which are carried out at a short distance to adjacent walls, floors or ceilings or corners. Another object is to show a water collecting ring whose function is less affected by the position of the suction port relative to the direction of gravity as in the prior art.
    description
    According to the invention the object is achieved in a water collecting ring according to the preamble of claim 1, characterized in that on the cover, a sealing ring is arranged, which projects into the through hole and can cooperate fluid-tight with the hollow core drill, which can be passed through the water collecting ring. The sealing ring is designed to retain the cooling water required in core bores within the water collecting ring. As an additional effect, the sealing of the first sealing lip is reinforced by the sealing ring, since outside air has to overcome the barrier of the sealing ring and the first sealing lip. Especially when the water collecting ring is firmly sucked on ceilings, the additional sealing effect is advantageous because in this position the weight of a connected suction hose acts directly on the water collecting ring. The sealing ring may be fixed to the inside or the outside of the cover. However, a determination on the outside is preferred because the sealing ring is easier to reach in this position.
    In a preferred embodiment, the sealing ring is made of an elastic plastic, in particular a polyester urethane rubber. Due to its mechanical and chemical resistance, this plastic is particularly well-suited for the present application.
    Conveniently, at least one cooling water passage is provided on the inner wall. Therefore, a connected wet-dry vacuum sucks not only air to generate a negative pressure in the space, but also simultaneously sucks the cooling water of the hollow core drill.
    Advantageously, the at least one fluid passage in the region of the suction connection is arranged on the inner wall. The cooling liquid therefore only has to travel a short distance in the intermediate space in order to be sucked out of the water collecting ring.
    In a further preferred embodiment, the sealing ring is arranged exchangeably on the cover. This feature is necessary so that the sealing ring is exchangeable with sealing rings of other inner diameters. If a hollow core drill with a different core diameter is to be used, therefore, only the sealing ring is to be replaced and not the entire water collecting ring. Even if the sealing ring is worn, it can be quickly replaced by a new one.
    In a particularly preferred embodiment, a screw ring can be screwed onto the cover for holding the sealing ring and the sealing ring between the screw ring and cover clamped. A ring gear is a cost-effective solution for producing a detachable connection between the sealing ring and cover. A ring with an external or internal thread can be made in one piece with the cover on which the ring screw with an internal or external thread can be screwed. The sealing ring can be jammed between the screw ring and the cover.
    Preferably, the screw ring is held with a bayonet lock on the cover. This allows a particularly rapid connection with a defined clamping of the sealing ring.
    In a further particularly preferred embodiment, the housing is made of a transparent material, in particular a transparent plastic.
    The user of the water collecting ring is therefore constantly informed during a core drilling on the level of the cooling water in the water collecting ring and can adjust the cooling water supply accordingly.
    Advantageously, the outer wall has a bulge, such that the distance between the edges of the inner and outer wall in the region of the bulge is increased. As a result, the intermediate space in the region of the bulge has an enlarged partial volume. Due to the increased partial volume in the area of the bulge, the volume of the space between the inner wall and the outer wall in the rest of the water collecting ring can be reduced, without the suction of the water collecting ring would suffer. The distance between inner wall and outer wall can therefore be reduced. This has the advantage that the water collecting ring can also be used for example in corners of two adjacent building walls and the borehole is providable at a short distance to the adjacent building wall. The distance of the borehole from the adjacent building wall is limited only by the distance between the inner wall and outer wall.
    In a particularly preferred embodiment, at least a first sealing lip piece and a second sealing lip piece are arranged on the edge of the inner wall, wherein the sum of the lengths of the Dichtlippenstücke is shorter than the length of the edge of the inner wall. Between the at least one first and second sealing piece, a passage is thereby formed in a simple manner, through which cooling water can pass from the passage opening past the inner wall into the intermediate space.
    Conveniently, the first sealing lip piece is longer than the second sealing lip piece. As a result, the second sealing lip piece can extend in the region of the bulge, and the passage formed, regardless of which end of the first sealing lip piece it is provided, is always in the region of the bulge respectively. the suction connection. This position of the passage allows a particularly effective removal of the cooling water.
    It proves to be advantageous if the second sealing lip piece along the edge of the inner wall in the region between the ends of the first sealing lip piece is displaceable. This displacement causes the passage to the position of the water collecting ring relative to the vertical is adaptable. Depending on whether the exhaust port is rotated clockwise or counterclockwise, the passage can be moved with. This is especially useful when the water collecting ring needs to be twisted relative to the vertical to allow easy access to the suction port even in confined spaces. It is also conceivable that the second sealing lip piece is arranged between the two ends of the first sealing lip piece such that a passage is formed on both sides. This arrangement may be advantageous if the suction connection is arranged substantially vertically on a building wall. It is also conceivable that the inner wall together with the first and second sealing lip piece is rotatable relative to the outer wall. Then, however, it should be noted that the rotatable transition between the inner wall and the rest of the housing is made substantially fluid and gas tight.
    It is advantageous if the length of the second sealing lip piece is at most 45%, preferably 40% and most preferably 35% of the length of the first packer and at least 15% preferably 20% and more preferably 25% of the length of the first packer is. This aspect ratio of the first sealing lip piece to the second sealing lip piece causes the passage does not shift to a range in which it would be too far away from the suction port for effective suction.
    Characterized in that the suction connection is advantageously arranged on the bulge, the suction in the region of the bulge, in which collects the cooling water, the largest. To increase the suction effect, it is advantageous if the suction connection occupies the lowest possible point depending on the position to the vertical. Thus, the effect of gravity is used to support the suction maximally.
    Advantageously, the inner wall has the shape of a ring to keep the distance to a drill or core drill, which are necessarily round, as small as possible over the entire circumference.
    In a further preferred embodiment, the outer wall has substantially the shape of a ring, wherein the ring is widened in the region of the bulge. As a result, the inner wall in ring shape can be arranged concentrically within the outer wall. This causes the smallest possible distance of the outer wall to the inner wall.
    It proves to be advantageous if the inner wall and the outer wall are connected on the side facing away from the sealing lips by means of a cover, which cover projects into the passage opening. As a result, the cover forms an overflow protection, if the cooling water is temporarily not completely sucked into the space. The seal of the core drill can be relieved by this additional overflow protection.
    Advantageously, the cover in the region of the bulge forms an overflow protection, in that it projects more strongly into the passage opening in this area than in the remaining areas of the passage opening. As a result, the overflow protection is highest in the area where the water is normally collected by the action of gravity in the through hole.
    In a further preferred embodiment, the suction connection is arranged at the transition between the outer wall and cover obliquely to the plane of the outer wall. The suction connection is therefore particularly easy to connect to the suction hose of an NT vacuum cleaner, since it is directed away from the building wall and thus this is not in the way when connecting.
    Advantageously, the length of the edge of the inner wall exceeds the sum of the length of the Dichtlippenstücke at least by 5 mm, preferably by 8 mm and more preferably by 10 mm and at most by 25 mm, preferably by 20 mm and more preferably by 15 mm. Thereby, a passage between the sealing lips pieces, preferably between the first and second sealing lip piece is formed, which is dimensioned such that on the one hand sufficient suction is built and on the other hand, no backflow of cooling water builds up in the through hole.
    In a further preferred embodiment, the distance of the outer wall of the inner wall, except the region of the bulge, at least 5 mm, preferably 10 mm and particularly preferably 15 mm and a maximum of 35 mm, preferably 30 mm and particularly preferably 25 mm. This dimensioning of the distance causes the smallest possible distance between the inner wall and outer wall, whereby the water collecting ring can be used very close to an adjacent building wall. On the other hand, the distance is not so small that the suction effect is impaired.
    Since the displaceability of the second sealing lip piece does not necessarily have to be combined with the feature of the bulge, a further aspect of the invention relates to a water collecting ring, wherein at least one first sealing lip piece and a second sealing lip piece are arranged on the edge of the inner wall, the sum of Lengths of the sealing lip pieces is shorter than the length of the edge of the inner wall. This arrangement of two sealing lips pieces is not only suitable for new water collecting rings, but it can also each existing water collection ring with two such Dichtlippenstücken be equipped in retrospect.
    Advantageously, the second sealing lip piece along the edge of the inner wall in the region between the ends of the first sealing lip piece is displaceable. This embodiment of the sealing lip pieces can be retrofitted to existing water collecting rings.
    Further advantages and features will become apparent from the following description of an embodiment of the invention with reference to the schematic representations. It shows in not to scale representation:<Tb> FIG. 1: <SEP> a plan view of a water collecting ring according to the invention;<Tb> FIG. 2: <SEP> a sectional view through the water collecting ring along the section line II-II;<Tb> FIG. 3: <SEP> a side view of the water collecting ring with attached sealing lip;Fig. 4: <SEP> is a perspective view of the water collecting ring;<Tb> FIG. 5: <SEP> a bottom view of the water collecting ring with two closed sealing lips;<Tb> FIG. 6: <SEP> is a bottom view of the water collecting ring with a sealing lip piece in a first position;<Tb> FIG. 7: <SEP> a bottom view of the water collecting ring with the sealing lip piece in a second position and<Tb> FIG. 8: <SEP> a bottom view of the water collecting ring with the sealing lip piece in a third position.
    In Figs. 1 to 8 an embodiment of an inventive water collecting ring is shown, which is designated overall by the reference numeral 11. The water collecting ring 11 has a housing with an inner wall 13, an outer wall 15 and a cover 17. The inner wall 13 preferably has the shape of a circular ring and defines a passage opening 19. The passage opening 19 serves to pass a hollow core drill when the water collecting ring 13 during the provision a bore on a building surface is sucked on selbiger. The term "building surface" as used in this document refers to the walls, floors and ceilings of a building. The inner wall 13, the outer wall 15 and the cover 17 define a gap 21, which is open when using the water collecting ring 13 in the direction of the building surface. At the edges of the inner and outer walls 13, 15, a first and second sealing lip 23, 25 are provided. The sealing lips 23, 25 serve the most fluid and airtight possible completion of the water collecting ring 11 on the building wall, when the water collecting ring 11 is connected to a wet-dry vacuum. The exception is a passage 31 at the first sealing lip 23, through which cooling water and drilling mud can get into the intermediate space 21. For example, the sealing lips 23, 25 may be frictionally held at the edges of the inner or outer wall 13, 15 by having a reinforced with wire U-profile made of rubber, which is attachable to the edges. The area adjacent to the U-profile may also be made of rubber which is deformable during suction. As a result, the water collecting ring 11 holds independently on the building wall, and cooling water and drilling mud remain largely in the gap 21 and are sucked through a suction port 27. Preferably, the suction port 27 is a suction nozzle.
    1 to 5 show a sealing ring 33 which is arranged on the cover 17. The sealing ring 33 may be arranged on the outside or the inside of the cover 17. The sealing ring 33 protrudes into the passage opening 19. The inner diameter of the sealing ring 33 is smaller by 10 to 30 mm, preferably by 15 to 25 mm and more preferably by 18 to 22 mm than the diameter of the passage opening 19. In order for a sufficient seal between the cover 17 and the sealing ring 33 is produced, must the sealing ring 33 have a sufficient contact surface on the cover. Accordingly, the outer diameter of the sealing ring 33 by 10 to 30 mm and preferably by 15 to 25 mm larger than the diameter of the passage opening 19. The inner diameter of the sealing ring 33 is dimensioned such that the shell of a hollow core drill substantially fluid-sealed with the sealing ring. The inventive water collecting ring 11 allows that the cooling water of the hollow core drill can not escape from the through hole 19. Therefore, it is possible to make holes on ceilings. The cooling water is sucked through at least one cooling water passage 35, which penetrates the inner wall 13 in the region of the suction connection 27, simultaneously with the air flow, which serves to suck in the water collecting ring, through the suction connection. Depending on the amount of cooling water required, a plurality of cooling water passages 35 can penetrate the inner wall 13. The feature of a sealing ring 33 is additionally characterized by the fact that the seal between the sealing ring and the hollow core drill additionally improves the suction performance of the water collecting ring. This is because the seal on the inside of the gap 21 of the first seal lip 23 is further enhanced by the seal ring 33, since outside air must overcome the barrier of the seal ring 33 when passing through the passage 31 and the cooling water passage 35.
    For exchangeable fixing of the sealing ring 33 on the cover 17, the sealing ring 33 can be clamped fluid-tight with a screw ring 37 between selbigem and the cover 17. For a particularly rapid and simple mounting of the screw ring 37 is preferably fixed by means of a bayonet lock on the cover 27. That is, with a slight clockwise rotation, the sealing ring 33 is fixed. Just as quickly, the sealing ring 33 can be replaced by turning it counterclockwise and removing the screw ring 37 against another sealing ring. This may be necessary if a sealing ring is to be used with a different inner diameter, or the sealing ring 33 has to be replaced for reasons of wear against a new sealing ring. The sealing ring 33 is preferably made of a polyester-urethane rubber, also known under the trade name Vukollan. This elastic material has good chemical and mechanical resistance and is very well suited for the present application. A thickness of the sealing ring 33 of at most 1 mm is sufficient to produce a sufficient seal between the sealing ring 33 and the hollow core drill.
    The housing of the water collecting ring 11 is preferably transparent. Conveniently, any transparent plastic with sufficient mechanical and chemical resistance can be used. In particular, when the water collecting ring is used in the manufacture of a core hole on a ceiling, so over head, a transparent design is advantageous. The user is informed by the transparency of the housing at any time about the liquid level of the cooling water and can therefore respond in good time to overfilling of the water collection ring.
    As shown in FIGS. 2 to 4, the suction connection 27 is preferably made obliquely and penetrates the outer wall 15 and the cover 17. Thus, a suction hose is particularly easy to connect to the suction port 27 without the building wall is in the way.
    The outer wall 15 preferably has a bulge 29 in the region of the suction connection 27. By increasing the partial volume of the intermediate space 21 in the region of the bulge 29, it is possible to reduce the distance between the inner wall 13 and the outer wall 15 in the region which adjoins the Bulge 29 connects to reduce without the suction power would be affected. Due to the small distance of the inner and outer walls 13, 15 of the water collecting ring 11 is still applicable even if the building wall bore at a small distance to an adjacent building wall, ie in a corner, make. Preferably, the smallest distance between the inner and the outer wall 13, 15 in about 20 mm. As a result, a sufficient suction force is secured and bores or core holes can be made up to a distance of about 20 mm to an adjacent building wall.
    The second sealing lip 25 is continuously closed, so that no liquid can leave the gap during use of the collecting ring 11. In contrast, the first sealing lip 23 is interrupted and has at least one passage 31 through which cooling water and drilling mud from the through-hole 19 in the gap 21 can flow. The first sealing lip 23 preferably consists of a first sealing lip piece 23a and a second sealing lip piece 23b. So that the passage 31 is formed, the sum of the sealing lip pieces 23a and 23b is shorter than the edge of the inner wall 13. The length of the second sealing lip piece 23b is preferably about 1/3 of the length of the first sealing lip piece 23a. The second sealing lip piece 23b can be plugged onto the edge of the inner wall 13, since the edge facing side is preferably designed as a wire-reinforced U-profile. The second sealing lip piece 23b is therefore displaceable between the two ends of the first sealing piece 23a. The passage 31 is formed at one end of the first packing piece 23a (Figs. 6 and 7). Fig. 8 shows that it is also possible to arrange the second sealing piece 23b centrally between the two ends of the first sealing piece 23a. Then, two passages 31 a, 31 b are formed, the total width of which corresponds to the width of the passage 31. The displacement of the passage 31 has the advantage that the passage 31 is adjustable in dependence on the position of the water collecting ring 11. If the suction connection 27 is twisted to the left or right from the vertical, for example for reasons of space, the passage 31 can be displaced in the direction of the suction connection 27. Thereby, the suction power can be improved because the path of the cooling water or the drilling mud in the gap 21 can be kept as short as possible and the cooling water can flow substantially in the direction of gravity.
    In summary, the following can be stated: For collecting and sucking off cooling water and drilling mud during a wall or core drilling, a water collecting ring 11 according to the invention is used. The feature of the sealing ring 33 causes a core bore using the inventive water collecting ring 11 is also carried out over the head, since the cooling water is retained by the sealing ring 33 in the water collecting ring 11. By providing the bulge 29 in the region of the outer wall 15, the partial volume of the intermediate space 21 in the region of the bulge 29 is increased. As a result, the distance between the inner wall 13 and the outer wall 15 in the remaining area adjoining the bulge 29 can be reduced. The space requirement of the water collecting ring 11 is correspondingly low, and it can be arranged closely to an adjacent building wall, so that a recorded in the through hole wall or hollow core drill can be performed close to the adjacent building wall.
    The first sealing lip 23 may be composed of a first sealing lip piece 23a and a second sealing lip piece 23b. The two sealing lip pieces 23a, 23b are spaced apart by at least one passage 31. The passage 31 makes it possible for cooling water to flow from the passage opening 19 through the inner wall 13 into the intermediate space 21. By moving the second sealing lip piece 23b along the edge of the inner wall 13, the position of the passage 31 can be changed. This is of particular advantage when the water collecting ring 11 has to be rotated from space reasons with respect to the vertical.
    Legend
    [0040]<Tb> 11 <September> Water collector<Tb> 13 <September> inner wall<Tb> 15 <September> outer wall<Tb> 17 <September> cover<Tb> 19 <September> through opening<Tb> 21 <September> space<tb> 23 <SEP> First sealing lip<tb> 23a <SEP> First sealing lip piece<tb> 23b <SEP> Second sealing lip piece<tb> 25 <SEP> Second sealing lip<tb> 27 <SEP> Exhaust port, exhaust port<Tb> 29 <September> bulge<tb> 31, 31a, 31b <SEP> passage<Tb> 33 <September> sealing ring<Tb> 35 <September> cooling water passage<Tb> 37 <September> freewheel
    权利要求:
    Claims (10)
    [1]
    1. water collecting ring (11) for the collected removal of cooling water in wet wells on a building wall, a building ceiling or a building floor with- A housing on which a passage opening (19) is provided for the passage of a hollow core drill, wherein the passage opening (19) by an inner wall (13) of the housing is limited and between the inner wall (13) and an outer wall (15) of the housing Interspace (21) is definedA suction connection (27) which is arranged on the outer wall (15) and communicates with the intermediate space (21),- A first and a second sealing lip (23, 25) which are arranged for sealingly supporting the housing on a building surface at the edges of the inner and outer wall (13, 15),- A passage (31) which is provided on the first sealing lip (23) and- A cover (17) which connects the inner wall (13) and the outer wall (15) on the side facing away from the sealing lips (23, 25),characterized in that on the cover (17) a sealing ring (33) is arranged, which projects into the passage opening (19) and fluid-tightly cooperate with the hollow core drill, which can be passed through the water collecting ring (11).
    [2]
    2. Water collecting ring according to claim 1, characterized in that the sealing ring (33) is made of a polyester-urethane rubber.
    [3]
    3. Water collecting ring according to claim 1 or 2, characterized in that on the inner wall (13) at least one cooling water passage (35) is provided which is arranged in the region of the suction port (27) on the inner wall (13).
    [4]
    4. Water collecting ring according to one of claims 1 to 3, characterized in that the first inner sealing lip (23) comprises a first and second sealing lip piece, wherein the length of the edge of the inner wall (13) the sum of the length of the Dichtlippenstücke (23a, 23b) at least 5 mm, preferably 8 mm, and more preferably 10 mm, and exceeding 25 mm at the most, preferably 20 mm and more preferably 15 mm.
    [5]
    5. Water collecting ring according to one of claims 1 to 4, characterized in that the sealing ring (33) is arranged exchangeably on the cover (17).
    [6]
    6. Water collecting ring according to one of claims 1 to 5, characterized in that on the cover (17) for holding the sealing ring (33) a screw ring (37) with a bayonet lock on the cover (17) can be screwed and the sealing ring (33) between screw ring (37) and cover (17) can be clamped.
    [7]
    7. Water collecting ring according to one of claims 1 to 6, characterized in that the housing is made of a transparent material, in particular a transparent plastic.
    [8]
    8. Water collecting ring according to one of claims 1 to 7, characterized in that the outer wall (15) has a bulge (29), such that the distance between the edges of the inner and outer wall (13, 15) in the region of the bulge ( 29) is increased.
    [9]
    9. water collecting ring according to claim 8, characterized in that the cover (17) in the region of the bulge (29) forms an overflow protection by more in this area in the through hole (19) protrudes than in the remaining areas of the through hole (19) ,
    [10]
    10. Water collecting ring according to one of claims 8 or 9, characterized in that the suction connection (27) at the bulge (29) at the transition between outer wall (15) and cover (17) obliquely to the level of the footprint of the water collecting ring (11) to the building surface (15) is arranged.
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    同族专利:
    公开号 | 公开日
    CH705017A1|2012-11-30|
    AT511530B1|2017-10-15|
    AT511530A2|2012-12-15|
    DE202011050242U1|2011-06-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    SE0400735D0|2004-03-23|2004-03-23|Electrolux Ab|Water and slurry collector|
    JP2006192525A|2005-01-12|2006-07-27|Miyanaga:Kk|Dust collector for drilling tool|
    JP2007168186A|2005-12-20|2007-07-05|Nippon Steel & Sumikin Coated Sheet Corp|Dust collecting cover|
    JP4895799B2|2006-12-28|2012-03-14|株式会社シブヤ|Water treatment pad for core drill|
    JP5142870B2|2008-07-28|2013-02-13|株式会社シブヤ|Water treatment pad for drilling tools|
    DE102009000084A1|2009-01-08|2010-07-15|Hilti Aktiengesellschaft|exhaust hood|CH716558A1|2019-09-04|2021-03-15|Ssb Fidan Gmbh|Extraction device for the collected removal of cooling water when drilling wet holes on a first building wall.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE201120050242|DE202011050242U1|2011-05-24|2011-05-24|Slurry collector|DE201210104487| DE102012104487A1|2011-05-24|2012-05-24|Water collecting ring for removal of water and mud accumulated in e.g. wet cooling holes on building wall, has sealing ring which is arranged cooperating with hollow core drill, on a cover that connects inner and outer walls of housing|
    ATA613/2012A| AT511530B1|2011-05-24|2012-05-24|Slurry collector|
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