Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02B—HYDRAULIC ENGINEERING
  • E02B11/00—Drainage of soil, e.g. for agricultural purposes
  • E02B11/005—Drainage conduits

Definitions

• the present invention therefore, has the object to produce a drain pipe, which ensures efficient draining for a very long time without getting clogged -by mud, and which at the same time is easy to manufacture and mount.
• the pipe according to the invention comprises an outer pipe, which is slitted on its lower surface. From the edges on both sides of the slit longitudinal walls are fixed. Holes or openings provided at the upper edges of the walls estago connection between the space located between the walls and* the two spaces between the walls and the pipe proper. Drain water arising through the slit in the pipe be ⁇ tween the inner walls can through this structure flow over into the two lateral channels of the drain pipe.
• the ris of clogging by mud is hereby reduced substantially, because, firstly, the water always must move upward for entering into the drain pipe.
• the mud suspended in the water always being somewhat heavier than the water, the water is cleaned while arising between the walls.
• the water cleaning effect is amplified by the very large drain surface, which the. drain, pipe, provides in the form of the intermediate space between the walls, and which results in a low speed of water inflow into the drain pipe.
• the drain water flows at a good speed, due to the relatively moderate flow cross-section. Said good speed ensures that mud possibly following along in these
• the two partition walls drawn up from the slit a the bottom of the pipe preferably are interconnected at their upper edges and/or are connected to the inner wall of the pip with an inclined roof extending inward to each other, so that in these parts of the walls easily holes can be drilled or op ings be milled by a drill or milling cutter inserted through the slit.
• OM can be provided, for example, at every .pipe joint, if the pipe is not manufactured endless. In endless pipes it may be well sufficient to provide plugs * which are -assembled with the afore ⁇ said supports for the pipe.
• * One objection apparently obvious to be raised against the in- ventioft subject matter as * to its -function is, that the water would not flow into the two drain-off channels due to the ris ⁇ ing height required for the drain water before it flows over into the drain off channels, and that the drain pipe, more- over, has no drain holes on the upper surface and, thus, would have a drain effect worse than that of conventional structures.
• the partition walls drawn high up in the pipe yield a further advantage of the invention subject matter over the prior art. It is thereby possible, namely, to drain off also rainwater from gutters and down pipes into drain-off channels of the drain pipe. The contrary rather is the case, because this doub ⁇ le utilization of the drain pipe brings about a more efficient flushing of the pipe, thereby additionally reducing the risk of clogging. At the same time the costs of a drain-off piping for the down pipe water can be saved. Besides, in this way an immediate indication is obtained when a drain pipe is clogged by mud, because then the associated down pipe will overflow.
• Figs. 1 and 2 are cross-sections through different embodiment of a drain pipe according to the invention
• Fig. 3 is a perspective view of the drain pipe shown Fig. 2, one side partially ' cut away, and
• Fig. 4 shows a mounting support for the drain conduit.
• the drain pipe shown in Fig. 1 comprises an outer pipe casing
• partition walls 3 and, respectively, 4 extend upward to the upper surface of the pipe casing 1.
• the partition walls 3 and 4 are at their upper edges attached to the inner wall of the pipe casing 1 by extensions resembling i clined roofs.
• Said inclined roof connections are designated by 5 and, respectively, 6 and extend toward each other to be inte connected in the attachment point to the pipe casing 1.
• the left-hand inclined roof portio 5 has a steeper -inclination than the right-hand portion 6.
• Fig. 2 shows a drain pipe, which substantially agrees with the one shown in Fig. 1 , with the exception that the inclined roof portions connecting the partition walls 3 and 4 with the pipe casing 1 have the same inclination, whereby the same level for both is obtained.
• Fig. 4 finally shows a pipe ' support, which in its entirety is 5 . designated by 7.
• the pipe support.1 _ comprises a bottom plate 8 and two claws or arms 9 for embracing the pipe.
• Said pipe sup ⁇ port has as its function both during mounting and during opera ⁇ tion to maintain the drain pipe so; that its slit faces downward.
• the support further includes between the two arms 9 a plug or 0 partition wall portion 10, which has to objects. It firstly shall prevent the drain pipe from being compressed by the soil pressure and, secondly, it shall prevent water movements in the longitudinal direction of the pipe which may result in mud col ⁇ lection, at..one.- nd..JOf the. pipe.
• a plug is provided in the pipe which closes the space between the partition walls, but which leaves the drain-off channels for the water substantially free.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Agronomy & Crop Science (AREA)
• Mechanical Engineering (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Sink And Installation For Waste Water (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• External Artificial Organs (AREA)
• Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
• Farming Of Fish And Shellfish (AREA)
• Centrifugal Separators (AREA)
• Sewage (AREA)
• Branch Pipes, Bends, And The Like (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Dental Preparations (AREA)
• Recrystallisation Techniques (AREA)
• Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)

Priority Applications (3)

Applications Claiming Priority (3)

Publications (1)

Family

ID=26657162

Family Applications (1)

Country Status (16)

Cited By (4)

Families Citing this family (8)

Citations (4)

Family Cites Families (7)

• 1979
  • 1979-11-30 AU AU53342/79A patent/AU534600B2/en not_active Ceased
  • 1979-11-30 NZ NZ192284A patent/NZ192284A/xx unknown
  • 1979-12-03 AT AT79901621T patent/ATE4923T1/de not_active IP Right Cessation
  • 1979-12-03 MX MX180286A patent/MX149395A/es unknown
  • 1979-12-03 IT IT69331/79A patent/IT1165249B/it active
  • 1979-12-03 CA CA000341097A patent/CA1136869A/en not_active Expired
  • 1979-12-03 WO PCT/SE1979/000245 patent/WO1980001180A1/en unknown
  • 1979-12-03 NO NO793932A patent/NO150646C/no unknown
  • 1979-12-03 JP JP50211379A patent/JPS55500948A/ja active Pending
  • 1979-12-03 DE DE7979901621T patent/DE2966281D1/de not_active Expired
  • 1979-12-03 US US06/199,725 patent/US4389138A/en not_active Expired - Lifetime
  • 1979-12-03 GR GR60659A patent/GR74047B/el unknown
  • 1979-12-03 ES ES1979255181U patent/ES255181Y/es not_active Expired
  • 1979-12-04 FI FI793808A patent/FI67594C/fi not_active IP Right Cessation
• 1980
  • 1980-06-17 EP EP79901621A patent/EP0020630B1/en not_active Expired
  • 1980-07-31 DK DK329380A patent/DK329380A/da not_active Application Discontinuation
• 1987
  • 1987-11-16 JP JP1987174933U patent/JPS6395734U/ja active Pending

Patent Citations (4)

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