EP0633362A1 - Manhole cover with seal - Google Patents
Manhole cover with seal Download PDFInfo
- Publication number
- EP0633362A1 EP0633362A1 EP94201666A EP94201666A EP0633362A1 EP 0633362 A1 EP0633362 A1 EP 0633362A1 EP 94201666 A EP94201666 A EP 94201666A EP 94201666 A EP94201666 A EP 94201666A EP 0633362 A1 EP0633362 A1 EP 0633362A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover means
- frame
- rib
- lid
- ducts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 229920002994 synthetic fiber Polymers 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
Definitions
- the present invention concerns a device for sealing pits, in particular a device which consists of a horizontal frame and cover means fitting in the frame, such as a lid.
- odour seals usually consist of grooves in the form of ducts which are provided in the above-mentioned frames and ribs on the bottom side of the lids which extend into the above-mentioned ducts, one and other such that when the ducts are filled with water, a barrier is formed for the odour rising from the pit.
- the pit lids can seal in a watertight manner. This is among other the case in control rooms which are situated above the lid of a tank, such as a fuel oil tank.
- a tank such as a fuel oil tank.
- various solutions have already been suggested, including the use of elastic sealing rings.
- the known devices for sealing pits whereby an odour seal and/or a seal to prevent the penetration of liquid, such as rain water, is provided, are all disadvantageous in that they no longer meet the above-mentioned requirements after some time, especially when the pit lids used hereby are heavily loaded, for example by vehicles driving over them. Many of the usual defects hereby arise as the pit lids bend and the seatings, where the lids rest in the frames, are damaged. This phenomenon particularly occurs with synthetic lids.
- Document GB 2 148 362 discloses a device for sealing pits, having a lid provided with two ribs on its bottom side fitting into concentric ducts of a supporting frame.
- the construction known herefrom does not exclude the penetration of water.
- the present invention aims a device for sealing pits which does not have the above-mentioned disadvantages, in other words whereby an optimum sealing is provided on the one hand, in order to prevent that odour escapes and/or that liquid seeps in the pit, and whereby damages to the seal arising under an extremely heavy load are optimally excluded on the other hand, even when the frames and lids are made of synthetic material and when the load is more than 12 tons.
- the invention concerns a device for sealing pits, consisting of a horizontal frame and cover means fitting in this frame, characterized in that the frame has two concentric ducts which can each contain an amount of liquid; in that the cover means have two ribs on their bottom sides which extend into the concentric ducts as the cover means are applied, whereby the ducts and ribs are made such that two liquid seals are created with an inclusion of air in between which can prevent liquid from entering; in that the outer rib rests in the outer duct, preferably on the bottom thereof; and in that the outer rib serves as a support for at least the part of the cover means which serves as bearing surface.
- the above-mentioned construction is advantageous in that the load which is exerted on the bearing surface of the cover means is optimally transferred to the frame, without certain ribs being bent in their seatings and breaking off.
- the above-mentioned cover means may hereby consist of a single lid which has at least two ribs on its bottom side which work in conjunction with the above-mentioned concentric ducts, or they may consist of two separate lids placed on top of one another, of which the top lid has a rib on its bottom side which works in conjunction with the outer duct and of which the bottom lid has a rib on its bottom side which works in conjunction with the inner duct.
- the device for sealing pits consists of a horizontal frame and cover means fitting in this frame, characterized in that the cover means consist of two lids placed on top of one another; in that the frame has two concentric ducts which can each contain an amount of liquid; and in that the top lid has a rib on its bottom side which extends into the outer duct and in that the bottom lid has a rib on its bottom side which extends into the inner duct, such that an inclusion of air can be created in between the lids which can prevent liquid from entering.
- the cover means consist of two lids placed on top of one another; in that the frame has two concentric ducts which can each contain an amount of liquid; and in that the top lid has a rib on its bottom side which extends into the outer duct and in that the bottom lid has a rib on its bottom side which extends into the inner duct, such that an inclusion of air can be created in between the lids which can prevent liquid from entering.
- the invention concerns a device 1 for sealing pits, consisting of a horizontal frame 2 and cover means 3 fitting in this frame.
- the device 1 is characterized in that the frame 2 has two concentric ducts 4 and 5 which can each contain an amount of liquid 6; in that the cover means 3 have two ribs 7 and 8 on their bottom sides which extend into the concentric ducts 4 and 5 as the cover means 3 are applied, whereby these ducts and ribs are made such that two liquid seals 9 and 10 are created with an inclusion of air 11 in between, which can prevent liquid 6 from entering in the pit; in that the outer rib 7 rests on the bottom 12 of the outer duct 4; and in that the outer rib 7 serves as a support for at least the part of the cover means 3 which serves as bearing surface 13.
- the cover means 3 consist of a single lid 14.
- the outer rib 7 is preferably situated on the inner edge 15 of the lid 14, such that this lid 14 cannot topple, not even under a very heavy load, and does cannot come out of the frame 2, for example when heavy vehicles drive over it.
- the base 16 of the frame 2 preferably extends under the outer rib 7, such that pressure forces are vertically transferred downward from the rib 7 to the construction provided under the frame 2, as a result of which the frame 2 is not under any strain of bending.
- the device 1 is preferably also provided with positioning means to position the lid 14, or at least the rib 7 in the frame 2, such that the lid 14, as the pit is sealed, always fits in the same place in the frame 2, and the above-mentioned spaces 17, 18, 19 and 20 are respected.
- these positioning means consist of a seating 21 for the bottom edge 22 of the rib 7.
- the second rib 8 hangs down entirely freely in the duct 5.
- the lid 13 is entirely countersunk in the frame 2.
- the frame 2 and the cover means 3, in this case the lid 14, are made of synthetic material, which may be reinforced with glass fibres.
- the device 1 according to the invention is advantageous in that water cannot seep in the underlying pit.
- a liquid for example rain water
- enters the space 17 it will seep through into the space 18.
- the water from the space 18 will run over the wall 23 between the ducts 4 and 5 into the duct 5.
- an inclusion of air 11 is created.
- a counterpressure is created which finally results in a situation as represented in figure 2 whereby the water column in the space 20 is higher than in the space 19.
- the pressure which is thus created in the inclusion of air 11 prevents the liquid from flowing any further from the duct 4 into the duct 5, even when the space 17 is entirely filled with liquid.
- the ducts 4 and 5 should hereby be suitably dimensioned, whereby the minimum dimensions can be either calculated or determined by experiment.
- Figure 3 shows a variant whereby the cover means 3 consist of two lids 24 and 25 situated on top of one another.
- the above-mentioned rib 7 is hereby part of the lid 24 and the above-mentioned rib 8 is part of the lid 25.
- the lid 25 rest on the inner edge 26 of the frame 2, and there is an air slot between the two lids.
- the embodiment of figure 3 is also advantageous in that the space of the inclusion of air 11 is bigger than in the embodiment of figure 2 and in that a downward pressure force is exerted on the lid 25, as a result of which it is pressed onto the inner edge 26.
- Another advantage of the embodiment of figure 3 consists in that the liquid 6, as an underpressure is created in the pit, is not sucked inside, as in this case the lid 25 is sucked onto the inner edge 26 and the suction of the liquid 6 is prevented.
- the invention also concerns a device 1 which is provided, as represented in figure 3, with two lids 24 and 25, whereby the top lid 24 has a rib 7 which fits in the duct 4, and the bottom lid 25 has a rib 8 which fits in the duct 6, regardless of whether the rib 7 serves as a support or not.
- cover means 3 consist of two lids 24 and 25 instead of one single lid 14, all characteristics which are described by means of figure 2 are also valid for the embodiment of figure 3.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Sealing Devices (AREA)
- Closures For Containers (AREA)
Abstract
Description
- The present invention concerns a device for sealing pits, in particular a device which consists of a horizontal frame and cover means fitting in the frame, such as a lid.
- It is known that devices for sealing pits can be provided with odour seals. These usually consist of grooves in the form of ducts which are provided in the above-mentioned frames and ribs on the bottom side of the lids which extend into the above-mentioned ducts, one and other such that when the ducts are filled with water, a barrier is formed for the odour rising from the pit.
- For certain applications it is also desirable that the pit lids can seal in a watertight manner. This is among other the case in control rooms which are situated above the lid of a tank, such as a fuel oil tank. In order to provide for such a watertight seal, various solutions have already been suggested, including the use of elastic sealing rings.
- The known devices for sealing pits, whereby an odour seal and/or a seal to prevent the penetration of liquid, such as rain water, is provided, are all disadvantageous in that they no longer meet the above-mentioned requirements after some time, especially when the pit lids used hereby are heavily loaded, for example by vehicles driving over them. Many of the usual defects hereby arise as the pit lids bend and the seatings, where the lids rest in the frames, are damaged. This phenomenon particularly occurs with synthetic lids.
-
Document GB 2 148 362 discloses a device for sealing pits, having a lid provided with two ribs on its bottom side fitting into concentric ducts of a supporting frame. The construction known herefrom, however, does not exclude the penetration of water. -
Documents GB 2 093 509 and EP 0 390 767 disclose devices using sealing rings. These devices have the disadvantage that the sealing rings after some time become untight and penetration of water becomes possible. - Also, the present invention aims a device for sealing pits which does not have the above-mentioned disadvantages, in other words whereby an optimum sealing is provided on the one hand, in order to prevent that odour escapes and/or that liquid seeps in the pit, and whereby damages to the seal arising under an extremely heavy load are optimally excluded on the other hand, even when the frames and lids are made of synthetic material and when the load is more than 12 tons.
- To this end, the invention concerns a device for sealing pits, consisting of a horizontal frame and cover means fitting in this frame, characterized in that the frame has two concentric ducts which can each contain an amount of liquid; in that the cover means have two ribs on their bottom sides which extend into the concentric ducts as the cover means are applied, whereby the ducts and ribs are made such that two liquid seals are created with an inclusion of air in between which can prevent liquid from entering; in that the outer rib rests in the outer duct, preferably on the bottom thereof; and in that the outer rib serves as a support for at least the part of the cover means which serves as bearing surface.
- The above-mentioned construction is advantageous in that the load which is exerted on the bearing surface of the cover means is optimally transferred to the frame, without certain ribs being bent in their seatings and breaking off.
- The above-mentioned cover means may hereby consist of a single lid which has at least two ribs on its bottom side which work in conjunction with the above-mentioned concentric ducts, or they may consist of two separate lids placed on top of one another, of which the top lid has a rib on its bottom side which works in conjunction with the outer duct and of which the bottom lid has a rib on its bottom side which works in conjunction with the inner duct.
- According to a variant of the invention, the device for sealing pits consists of a horizontal frame and cover means fitting in this frame, characterized in that the cover means consist of two lids placed on top of one another; in that the frame has two concentric ducts which can each contain an amount of liquid; and in that the top lid has a rib on its bottom side which extends into the outer duct and in that the bottom lid has a rib on its bottom side which extends into the inner duct, such that an inclusion of air can be created in between the lids which can prevent liquid from entering. By using two lids, the risk of damages is strongly reduced, as only the top lid has to carry the load and the ribs on the bottom lid and the accompanying seating of said lid are not loaded.
- In order to better explain the characteristics of the invention, the following preferred embodiments are described without being limitative in any way, with reference to the accompanying drawings, where:
- figure 1 shows a device according to the invention;
- figure 2 shows a section according to line II-II in figure 1;
- figure 3 shows a section of a variant of a device according to the invention.
- As shown in figure 1, the invention concerns a
device 1 for sealing pits, consisting of ahorizontal frame 2 and cover means 3 fitting in this frame. - According to a first embodiment of the invention, the
device 1 is characterized in that theframe 2 has twoconcentric ducts ribs concentric ducts cover means 3 are applied, whereby these ducts and ribs are made such that twoliquid seals outer rib 7 rests on thebottom 12 of theouter duct 4; and in that theouter rib 7 serves as a support for at least the part of the cover means 3 which serves as bearingsurface 13. - In the embodiment shown in figure 2 the cover means 3 consist of a
single lid 14. - The
outer rib 7 is preferably situated on theinner edge 15 of thelid 14, such that thislid 14 cannot topple, not even under a very heavy load, and does cannot come out of theframe 2, for example when heavy vehicles drive over it. - The
base 16 of theframe 2 preferably extends under theouter rib 7, such that pressure forces are vertically transferred downward from therib 7 to the construction provided under theframe 2, as a result of which theframe 2 is not under any strain of bending. - The
lid 14, and more in particular theribs ducts free spaces - The
device 1 is preferably also provided with positioning means to position thelid 14, or at least therib 7 in theframe 2, such that thelid 14, as the pit is sealed, always fits in the same place in theframe 2, and the above-mentionedspaces seating 21 for thebottom edge 22 of therib 7. - The
second rib 8 hangs down entirely freely in theduct 5. - The
lid 13 is entirely countersunk in theframe 2. - Preferably, the
frame 2 and the cover means 3, in this case thelid 14, are made of synthetic material, which may be reinforced with glass fibres. - The
device 1 according to the invention is advantageous in that water cannot seep in the underlying pit. When a liquid, for example rain water, enters thespace 17, it will seep through into thespace 18. After a certain time, the water from thespace 18 will run over thewall 23 between theducts duct 5. Once a certain amount of water has run into it, an inclusion of air 11 is created. As of that moment, a counterpressure is created which finally results in a situation as represented in figure 2 whereby the water column in thespace 20 is higher than in thespace 19. The pressure which is thus created in the inclusion of air 11, prevents the liquid from flowing any further from theduct 4 into theduct 5, even when thespace 17 is entirely filled with liquid. It is clear that theducts - As the
lid 14 with theribs 7 on the bottom rests in theduct 4, large forces are optimally transferred onto theframe 2, as a result of which damages to theribs - Figure 3 shows a variant whereby the cover means 3 consist of two
lids 24 and 25 situated on top of one another. The above-mentionedrib 7 is hereby part of the lid 24 and the above-mentionedrib 8 is part of thelid 25. Thelid 25 rest on theinner edge 26 of theframe 2, and there is an air slot between the two lids. - As the
lid 25 does not make contact with the lid 24, this is not subject to possible deformations of the lid 24, and the good working of the above-mentioned effect, which is brought about thanks to the presence of the inclusion of air 11, is always guaranteed. - The embodiment of figure 3 is also advantageous in that the space of the inclusion of air 11 is bigger than in the embodiment of figure 2 and in that a downward pressure force is exerted on the
lid 25, as a result of which it is pressed onto theinner edge 26. - Another advantage of the embodiment of figure 3 consists in that the liquid 6, as an underpressure is created in the pit, is not sucked inside, as in this case the
lid 25 is sucked onto theinner edge 26 and the suction of the liquid 6 is prevented. - As explained in the introduction, the invention also concerns a
device 1 which is provided, as represented in figure 3, with twolids 24 and 25, whereby the top lid 24 has arib 7 which fits in theduct 4, and thebottom lid 25 has arib 8 which fits in the duct 6, regardless of whether therib 7 serves as a support or not. - With the exception of the fact that the cover means 3 consist of two
lids 24 and 25 instead of onesingle lid 14, all characteristics which are described by means of figure 2 are also valid for the embodiment of figure 3. - The present invention is by no means limited to the embodiments described by way of example and shown in the accompanying drawings; on the contrary, such a device for sealing pits can be made in various forms and dimensions while still remaining within the scope of the invention.
Claims (12)
- Device for sealing pits, consisting of a horizontal frame (2) and cover means (3) fitting in this frame (2), characterized in that the frame (2) has two concentric ducts (4, 5) which can each contain an amount of liquid (6); in that the cover means (3) have two ribs (7, 8) on their bottom sides which extend into the concentric ducts (4, 5) as the cover means (3) are applied, whereby these ducts and ribs are made such that two liquid seals (9, 10) are created with an inclusion of air (11) in between which can prevent liquid (6) from entering in the pit; in that the outer rib (7) rests in the outer duct (4); and in that the outer rib (7) serves as a support for at least the part of the cover means (3) which serves as bearing surface (13).
- Device according to claim 1, characterized in that the outer rib (7) rests on the bottom of the outer duct (4).
- Device according to claim 1 or 2, characterized in that the outer rib (7) is situated on the outer edge (15) of the cover means (3).
- Device according to claim 1, 2 or 3, characterized in that there are free spaces (17, 18, 19, 20) around the ribs (7, 8) in the ducts (4, 5).
- Device according to any of the above claims, characterized in that it is provided with positioning means, which provide at least for the positioning of the outer rib (7) in the outer duct (8), and which consist of a seating (21) for the bottom edge of the above-mentioned outer rib (7).
- Device according to any of the above claims, characterized in that the base (16) of the frame (2) extends under the outer rib (7) of the cover means (3).
- Device according to any of the above claims, characterized in that the cover means (3) consist of one single lid (14), onto whose bottom side both above-mentioned ribs (7, 8) are provided.
- Device according to any of claims 1 to 6, characterized in that the cover means (3) consist of two lids (24, 25) situated on top of one another, whereby the outer rib (7) is situated on the top lid (24) and the inner rib (8) is situated on the bottom lid (25).
- Device for sealing pits, consisting of a horizontal frame (2) and cover means (3) fitting in this frame (2), characterized in that the cover means (3) consist of two lids (24, 25) placed on top of one another; in that the frame (2) has two concentric ducts (4, 5) which can each contain an amount of liquid (6); and in that the top lid (24) has a rib (7) on its bottom side which extends into the outer duct (4), and in that the bottom lid (25) has a rib (8) on its bottom side which extends into the inner duct (5), such that an inclusion of air (11) can be created in between the lids (24, 25) which prevents liquid (6) from entering in the pit.
- Device according to claim 8 or 9, characterized in that the bottom lid (25) rests on the inner edge (26) of the frame (2), and in that there is a continuous air slot between both lids (24, 25).
- Device according to any of the above claims, characterized in that both the frame (2) and the cover means (3) are made of synthetic material.
- Device according to claim 11, characterized in that the synthetic material is reinforced with glass fibres.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9300672A BE1007256A3 (en) | 1993-06-30 | 1993-06-30 | Device for closing of wells. |
BE9300672 | 1993-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0633362A1 true EP0633362A1 (en) | 1995-01-11 |
EP0633362B1 EP0633362B1 (en) | 1998-09-16 |
Family
ID=3887143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94201666A Expired - Lifetime EP0633362B1 (en) | 1993-06-30 | 1994-06-10 | Manhole cover with seal |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0633362B1 (en) |
AT (1) | ATE171233T1 (en) |
BE (1) | BE1007256A3 (en) |
DE (1) | DE69413324T2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6688807B2 (en) * | 2000-07-24 | 2004-02-10 | Albemarna, S.L. | Sealing device for a manhole |
EP1632611A2 (en) | 2004-08-12 | 2006-03-08 | Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik | Access shaft structure for manholes |
GB2502949A (en) * | 2012-04-23 | 2013-12-18 | Wrekin Holdings Ltd | Drain cover and frame assembly |
CN108193718A (en) * | 2018-02-22 | 2018-06-22 | 中国恩菲工程技术有限公司 | Seal assembly applied to grab bucket maintenance hole |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2956418B1 (en) * | 2010-02-18 | 2012-08-17 | Norinco | FRAME AND BUFFER LIFT WITH BUILT-IN AND SEAL SEAL |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2093509A (en) * | 1981-02-19 | 1982-09-02 | Clark Francis Sidney | An Access Cover and Frame Assembly |
JPS59192135A (en) * | 1983-04-14 | 1984-10-31 | Daikyo:Kk | Corrosion-proof structure of steel sheet pile |
GB2148362A (en) * | 1983-09-14 | 1985-05-30 | Clarksteel Ltd | An access cover and frame assembly |
EP0390767A2 (en) * | 1989-03-31 | 1990-10-03 | Ludo Debergh | Airtight manhole closure device |
-
1993
- 1993-06-30 BE BE9300672A patent/BE1007256A3/en not_active IP Right Cessation
-
1994
- 1994-06-10 DE DE69413324T patent/DE69413324T2/en not_active Expired - Fee Related
- 1994-06-10 AT AT94201666T patent/ATE171233T1/en not_active IP Right Cessation
- 1994-06-10 EP EP94201666A patent/EP0633362B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2093509A (en) * | 1981-02-19 | 1982-09-02 | Clark Francis Sidney | An Access Cover and Frame Assembly |
JPS59192135A (en) * | 1983-04-14 | 1984-10-31 | Daikyo:Kk | Corrosion-proof structure of steel sheet pile |
GB2148362A (en) * | 1983-09-14 | 1985-05-30 | Clarksteel Ltd | An access cover and frame assembly |
EP0390767A2 (en) * | 1989-03-31 | 1990-10-03 | Ludo Debergh | Airtight manhole closure device |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 9, no. 57 (M - 363) 13 March 1985 (1985-03-13) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6688807B2 (en) * | 2000-07-24 | 2004-02-10 | Albemarna, S.L. | Sealing device for a manhole |
EP1632611A2 (en) | 2004-08-12 | 2006-03-08 | Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik | Access shaft structure for manholes |
EP1632611A3 (en) * | 2004-08-12 | 2006-05-17 | Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik | Access shaft structure for manholes |
GB2502949A (en) * | 2012-04-23 | 2013-12-18 | Wrekin Holdings Ltd | Drain cover and frame assembly |
CN108193718A (en) * | 2018-02-22 | 2018-06-22 | 中国恩菲工程技术有限公司 | Seal assembly applied to grab bucket maintenance hole |
Also Published As
Publication number | Publication date |
---|---|
DE69413324T2 (en) | 1999-05-12 |
DE69413324D1 (en) | 1998-10-22 |
EP0633362B1 (en) | 1998-09-16 |
ATE171233T1 (en) | 1998-10-15 |
BE1007256A3 (en) | 1995-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5090713A (en) | Elastomeric gasket for sealing a glass fiber reinforced cover to a vault | |
EP0633362A1 (en) | Manhole cover with seal | |
DK164517B (en) | COVER AND FRAME FOR A STREET OR DOWN BRIDGE | |
US5098220A (en) | Membrane liner for casinghead of oil well of the like | |
IE55594B1 (en) | Access covers for manholes | |
CA2503498A1 (en) | Spacer for panes of multilayer insulation glass units | |
US5287986A (en) | Containment tank assembly | |
CN1507524A (en) | Non-slip material | |
GB2302355A (en) | Bottom supporting construction for a leg end of a displaceable jack-up platform | |
CA1092059A (en) | O-ring | |
US5284269A (en) | Space saving double seal | |
US6328064B1 (en) | Fluid tank drain pipe support/guide member | |
US5170854A (en) | Seal for a platform scale | |
US6149026A (en) | Secondary containment tub | |
EP0155622A3 (en) | Vertically adjustable bearing for the transferring and raising and/or lowering of heavy loads, particularly of bridges | |
US4397399A (en) | Seal for floating roofs of storage tanks | |
GB2177149A (en) | Storage container for liquids | |
CN1055531C (en) | Seal structure for plain bearing portion | |
GB2245627A (en) | Manhole cover and frame assembly | |
JP2819262B2 (en) | Drop corner | |
KR102056023B1 (en) | Sealed Type manhole cover | |
CN218718742U (en) | Sealing member and lifting basin | |
SU1709021A1 (en) | Pile foundation of building or structure | |
EP1398419A1 (en) | Cover bearing cushion for manholes | |
KR200245404Y1 (en) | Manhole cover for noise prevention |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE ES FR GB IT LI LU NL PT |
|
17P | Request for examination filed |
Effective date: 19950706 |
|
17Q | First examination report despatched |
Effective date: 19970314 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KRUYFHOOFT, CHRISTINA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ISOKING, N.V. |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE ES FR GB IT LI LU NL PT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980916 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19980916 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980916 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19980916 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980916 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980916 |
|
REF | Corresponds to: |
Ref document number: 171233 Country of ref document: AT Date of ref document: 19981015 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69413324 Country of ref document: DE Date of ref document: 19981022 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19981218 |
|
EN | Fr: translation not filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19990615 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19990625 Year of fee payment: 6 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000610 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000610 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20000610 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20090630 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090629 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20110101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |