EP0975842B1 - Gully hole - Google Patents

Gully hole Download PDF

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Publication number
EP0975842B1
EP0975842B1 EP98908310A EP98908310A EP0975842B1 EP 0975842 B1 EP0975842 B1 EP 0975842B1 EP 98908310 A EP98908310 A EP 98908310A EP 98908310 A EP98908310 A EP 98908310A EP 0975842 B1 EP0975842 B1 EP 0975842B1
Authority
EP
European Patent Office
Prior art keywords
gully
chamber
screen plate
outlet
screen
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.)
Expired - Lifetime
Application number
EP98908310A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0975842A1 (en
Inventor
Huibert Cornelis Dekker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gully Strainer VoF
Original Assignee
Gully Strainer VoF
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19764784&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0975842(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gully Strainer VoF filed Critical Gully Strainer VoF
Publication of EP0975842A1 publication Critical patent/EP0975842A1/en
Application granted granted Critical
Publication of EP0975842B1 publication Critical patent/EP0975842B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401—Gullies for use in roads or pavements
    • E03F5/0405—Gullies for use in roads or pavements with an odour seal
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal

Definitions

  • the present invention relates to a gully hole for catching and draining water into a sewer system, comprising a gully chamber provided at its top end with a gully inlet for receiving the water, and provided at a lower level with a gully outlet which opens into the gully chamber and which is connectable to the sewer system, and comprises a gully screen fitted in and dividing the gully chamber into a collecting compartment in communication with the gully inlet and a discharge compartment in communication with the gully outlet.
  • the Swiss patent specification CH-A-613.245 upon which the preamble of claim 1 is based, discloses a gully hole whose gully chamber is provided with a gully screen in the form of a basket. Also, from the Swiss patent specification CH-A-113.513 a similar gully hole is known. In these known gully holes the debris is collected in the basket incorporated in the gully chamber. After some time the basket can be taken out of the gully chamber for the removal of the debris from the basket. However, in said known gully holes the shape of the gully chamber and the basket have to be specifically adapted to each other in order for the basket to fit into the gully chamber. In addition, the basket has a very large screen surface, which is not necessary for effective screening.
  • the gully hole according to the invention is characterized in that the gully screen is a screen plate which extends almost over the entire height of the gully chamber, is mounted near the gully outlet, and abuts with at least its side edges and bottom edge to the walls of the gully chamber.
  • a gully hole according to the invention comprising a screen plate is extremely simple, requiring little material, and is therefore inexpensive to manufacture.
  • the screen plate is suitable for use with the known gully holes, and can be incorporated therein without said gully holes requiring any adaptation. Therefore, existing manufacturing methods for gully holes require no modification, which makes the screen plate economically still more attractive.
  • a gully hole incorporating a screen plate can be cleaned in the manner generally employed, by means of suction-vacation.
  • the fact that the screen plate is fitted only along a portion of the inside perimeter of the gully chamber, significantly reduces the probability of damage in comparison with gully holes comprising a basket-like gully screen. As a result, the gully hole can be cleaned more quickly and more efficiently.
  • the debris may now accumulate in the collecting compartment up to virtually the entire height of the gully hole without hindering the drainage of water, as there will always be openings in the screen plate above the level of accumulated debris allowing the water to drain into the gully outlet.
  • the period of time between consecutive cleanings may be considerably prolonged, with the result of considerable economization in terms of man hours and equipment necessary for the cleaning activities.
  • the screen plate is in a horizontal cross section curved, with the convex side facing the collecting compartment. This shape prevents the screen plate from bending into the direction of the gully outlet due to pressure being exerted on the screen plate from water streaming through the openings of the screen plate and from the debris accumulated in the collecting compartment.
  • the screen plate is made from a resilient material and is fitted under tension between the walls of the gully chamber. In this manner the screen plate is fixed very simply in the gully chamber, so that the probability of the gully screen being displaced or falling over is very slight. Because if this should occur, then the debris could enter the discharge compartment and the screen plate would be ineffective.
  • fixing means are provided by which the screen plate is fixed in the gully chamber. This measure prevents, should the occasion arise, that the screen plate becomes displaced or falls over in the gully chamber. This could make the collecting compartment smaller or debris could find its way into the discharge compartment, rendering the screen plate ineffective.
  • the fixing means may be provided in the gully chamber, on the screen plate or may be provided independently of either. It is also possible to use glue or cement.
  • the fixing means may comprise insertion slots provided in the walls of the gully chamber, into which the edges of the screen plate can be inserted. In this way a screen plate can easily be fixed in the gully chamber.
  • the fixing means may also comprise resilient strips which are attached to the edges of the screen plate abutting to the walls of the gully chamber, and which, when the screen plate is positioned in the gully chamber, abut against said walls of the gully chamber. This tension produces a fixing force and the strips guarantee a tight fit of the screen plate against the walls of the gully chamber.
  • the screen plate is removable from the gully hole. This has the advantage that, for instance, should the openings of the screen plate be clogged up, the screen plate can be cleaned outside the gully hole. It also allows a possibly damaged screen plate to be replaced very easily.
  • the invention is also embodied in a method of improving an existing gully hole for catching and draining water into a sewer system, comprising a gully chamber provided at its top end with a gully inlet for receiving the water, and provided at a lower level with a gully outlet which opens into the gully chamber and which is connectable to the sewer system, characterized by the following steps:
  • the screen plate is inserted into the gully chamber with the convex side facing away from the gully outlet. In this way, any pressure being exerted on the screen plate from the accumulated debris in the collecting compartment and from the water streaming through the openings of the screen plate, will serve as an extra fixing force for the screen plate.
  • a gully hole according to the invention is shown in Fig. 1 and is generally indicated by reference number 1.
  • the gully hole 1 comprises a gully chamber 10 and is at its top side provided with a gully inlet 20, for instance, a gully cover or a grate, and is in one of its side walls provided with a gully outlet 30.
  • the gully outlet 30 is positioned at a lower level than the gully inlet 20 and provides the connection to the sewer system.
  • a stench screen 31 is placed over the gully outlet 30. This stench screen 31 prevents malodorous gasses or vermin, such as rats, escaping from the sewer system.
  • a plate-like screen wall is mounted vertically in the gully chamber 10 as a gully screen 40.
  • the screen plate 40 extends from the bottom to the top of the gully chamber 10. The edges of the screen plate 40 thus abut to the walls of the gully chamber 10.
  • Water to be drained away will run into the collecting compartment 50 via the gully inlet 20.
  • This drain water will also carry with it debris such as street waste, leaves and sand, etc.
  • the water can via openings in the screen plate 40 reach the discharge compartment 60 and then the gully outlet 30 to drain into the sewer system. The water and the debris must be prevented from entering the discharge compartment 60 directly.
  • the size of the openings in the screen plate 40 must be chosen such that the debris carried with the water, which could cause blocking of the gully outlet 30 or the sewer system, cannot pass through the screen plate. This filtered-out debris will stay in the collecting compartment 50 and settle therein. Debris able to pass through the openings of the screen plate 40 such as, for instance sand, may safely enter the discharge compartment 60 without danger of the outlet 30 or the sewer system becoming blocked. The debris is allowed to accumulate in the collecting compartment 50 over virtually the entire height of the gully hole 1 without hindering the drainage of water to the discharge compartment 60. Above the level of the accumulated debris there are always openings available in the screen plate 40 for draining the water supplied from the collecting compartment 50 to the discharge compartment 60. The space now available for the accumulation of debris is considerably larger than the space available with a commonly used gully hole, because with a gully hole of that type said space is delimited by the bottom of the gully chamber and the lower side of the gully outlet 30.
  • the shape of the openings in the screen plate 40 is not limited to any particular shape.
  • the shapes may include circles, rectangles, ovals, slots, rhomboids, etc.
  • the size of the openings in the screen plate 40 must be chosen such that debris that could cause obstruction of the gully outlet 30 or the sewer system, is filtered out.
  • the openings in the screen plate 40 must not restrict the drainage of the water. To this end the draining surface area of the openings in the screen plate 40 must over a limited height directly above the level of the debris be at least equal to the cross-sectional surface area of the gully outlet 30.
  • the screen plate 40 of the embodiment shown in Fig. 1 is positioned completely vertically in the gully chamber 10. It may, however, be advantageous to position the screen plate 40 in the gully chamber 10 at an angle. This will be the case if the gully inlet 20 extends, for instance, over the entire top side of the gully hole. The screen plate 40 may then be positioned at an angle in such a way that the top edge of the screen plate 40 abuts to the wall of the gully chamber 10. The top side of the screen plate 40 according to Fig. 1 would in that case have to be moved to the left. In this configuration no debris can get directly from the gully inlet 20 into the discharge compartment 60.
  • the cross section of the gully hole according to the invention is not limited to any particular form.
  • the Figs. 2a and 2b show rectangular cross sections, but cross sections of another form are quite feasible, such as round, shown in Fig. 2c, or oval.
  • Figs. 2a, 2b and 2c show possible cross sections of the gully hole 1 which, in Fig. 1, is shown in longitudinal section.
  • Fig. 2a shows a gully hole with a rectangular cross section, wherein the screen plate 40 is positioned parallel to the wall of the gully chamber 10 comprising the gully outlet 30.
  • the embodiment of Fig. 2a comprises insertion slots 11 provided in the side walls of the gully chamber 10 into which the screen plate 40 can be inserted. This is a simple manner for fixing the screen plate 40 in the gully chamber 10 so that the screen plate 40 cannot shift or fall over. If no insertion slots 11 are provided it is possible, for instance, to affix vertical supporting strips to the screen plate 40, which supporting strips in this case rest against the side wall of the gully chamber 10 comprising the gully outlet 30 and the wall opposite thereto. Such a support does not need to be attached to the screen plate 40, but may also be provided otherwise. Those skilled in the art will know many different ways of fixing the screen plate in the gully chamber, all of which are within the scope of the appended claims.
  • Fig. 2b shows a cross section of an embodiment of a gully hole according to the invention, in which the screen plate 40 is curved.
  • the screen plate 40 is made from a resilient material such as, for instance, polyethylene or PVC.
  • the screen plate 40 in this embodiment is positioned under tension between opposing side walls of the gully chamber 10, i.e. it is jammed between said opposing side walls. Said screen plate 40 is thus firmly positioned in the gully chamber 10 and can only be displaced by a considerable force.
  • the curved form of the screen plate 40, with the convex side facing the collecting compartment 60, has also the advantage that a force from the collecting compartment 50 cannot bend the screen plate 40 into the direction of the gully outlet 30, which could damage or obstruct it. This force could come from water streaming from the collecting compartment 50 through the openings in the screen plate to the discharge compartment 60 and from the debris accumulated in the collecting compartment 50.
  • the curved embodiment of the screen plate 40 described above may also be positioned in the gully hole at an angle to prevent debris entering the discharge compartment 60 directly.
  • the screen plate 40 will generally be trapezoid before installation.
  • the screen plate 40 which may or may not be positioned at an angle, bent after positioning and inserted under tension between facing side walls of the gully chamber 10, is particularly suitable for mounting in existing gully holes that generally have a rectangular cross section.
  • a bendable screen plate 40 whose breadth in the released state is slightly larger than the inside width of the gully chamber 10, is elastically bent until the screen plate 40 spans a breadth which is slightly smaller than said inside width.
  • Figs. 1 and 2b show the existing gully holes generally used, after a screen plate 40 has been fitted in accordance with this method.
  • Another option is to attach resilient strips to the edges of the screen plate 40.
  • said resilient strips should be under tension between the screen plate 40 and the walls of the gully chamber 10. This tension fixes the screen plate 40 and guarantees a tight fit of the screen plate 40 against the walls of the gully chamber 10.
  • Fig. 2c shows a cross section of an embodiment of a gully hole having a circular cross section.
  • the screen plate 40 fitted herein is fixed in the gully chamber 10 by means of glue or cement.
  • the gully chamber 10 and the screen plate 40 have to be made from material that can be glued together such as, for instance, PVC.
  • the screen plate 40 is removable from the gully hole.
  • the removability of the screen plate 40 is also very convenient for cleaning, for instance, when the openings are clogged up. In the event of the screen plate 40 being damaged, it can also easily be replaced.
  • a screen plate that is fixed by means of glue or cement, can also be removed; for reinstallation glue or cement must again be used.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP98908310A 1997-04-14 1998-02-24 Gully hole Expired - Lifetime EP0975842B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1005806 1997-04-14
NL1005806A NL1005806C2 (nl) 1997-04-14 1997-04-14 Afvoerkolk.
PCT/NL1998/000110 WO1998046838A1 (en) 1997-04-14 1998-02-24 Gully hole

Publications (2)

Publication Number Publication Date
EP0975842A1 EP0975842A1 (en) 2000-02-02
EP0975842B1 true EP0975842B1 (en) 2002-05-08

Family

ID=19764784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98908310A Expired - Lifetime EP0975842B1 (en) 1997-04-14 1998-02-24 Gully hole

Country Status (7)

Country Link
EP (1) EP0975842B1 (nl)
AT (1) ATE217376T1 (nl)
AU (1) AU6637098A (nl)
DE (1) DE69805297T2 (nl)
DK (1) DK0975842T3 (nl)
NL (1) NL1005806C2 (nl)
WO (1) WO1998046838A1 (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010476C2 (nl) * 1998-11-04 2000-05-08 Tbs Soest B V Afvoerinrichting voor het afvoeren van water, fixeerorgaan en werkwijze voor het aanbrengen daarvan.
DE102017109276A1 (de) * 2017-04-28 2018-10-31 Meierguss Sales & Logistics Gmbh & Co. Kg Ablaufschacht sowie Tauchbogen, Separationswandung und Umlenkplatte hierfür
NL1042693B1 (en) * 2017-12-22 2019-07-01 Wavin Bv Gully or gully part

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326460A (en) * 1993-02-10 1994-07-05 Envirex Inc. Pretensioned mesh insert and method for producing a pretensioned mesh insert

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570444A (nl) *
CH113513A (de) 1925-07-08 1926-01-16 Bosshard H U Bodenablauf für Abwässer.
FR1325639A (fr) * 1962-02-06 1963-05-03 Percolateur à sortie haute pour filtrer les effluents sortant des fosses septiques
US3774765A (en) * 1971-09-09 1973-11-27 Tremco Manuf Co Area drain for a promenade deck or like environment
CH613245A5 (en) 1976-05-07 1979-09-14 Raymond Vuffray Settling tank for sewage
NZ328652A (en) * 1993-02-11 1999-05-28 Paul Blanche Solids separated from flowing liquid by panel cleaned by liquid flow

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326460A (en) * 1993-02-10 1994-07-05 Envirex Inc. Pretensioned mesh insert and method for producing a pretensioned mesh insert

Also Published As

Publication number Publication date
NL1005806C2 (nl) 1998-10-19
ATE217376T1 (de) 2002-05-15
DE69805297T2 (de) 2003-01-02
AU6637098A (en) 1998-11-11
EP0975842A1 (en) 2000-02-02
DK0975842T3 (da) 2002-09-02
WO1998046838A1 (en) 1998-10-22
DE69805297D1 (de) 2002-06-13

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