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 relates to an arrangement of a drainage pipe provided with inlet holes for water.
• the holes are positioned on the upper half of the drainage pipe, the drainage pipe being fully or partly covered by a jacket or exterior plate.
• Figure 1 shows a first embodiment of the arrangements accor ⁇ ding to the-.invention.
• Figure 2 shows a second embodiment of the arrangement accor- ding to the invention.
• Figure 3 shows a third embodiment of the arrangement accor ⁇ ding to the invention.
• Figure shows a fourth embodiment of the arrangement accord ding to the invention.
• Figure 5 shows a modification of the embodiment in figure 4.
• Figure 6 shows a further modification of the embodiment in figure 4.
• Figure 7 shows a modification of the embodiment in figure 5.
• Figure 8 shows a modification_ion of the embodiment in figure 3.
• FIG. 9 is a perspective view of an exterior plate intended for use with the arrangement as illustrated in figures 6 and 7
• OMPI Figure 10 shows an exterior plate according, to the invention for use with the arrangement as shown in figure 3.
• Figure 11 shows a fifth embodiment of the arrangement accor- ding to the invention.
• Figure 12 is a modified embodiment of the arrangement accor ⁇ ding to figure 11.
• FIG 1 there is shown a drainage pipe 2 which in the . " figure is corrugated and provided with an array of inlet holes 3.
• the drainage pipe is covered by an exterior plate
• Figure 3 shows an exterior plate 6 having supporting ribs 6", said supporting ribs being adapted in shape to the drainage pipe and facing said pipe. There is thus in this case formed two inlet sections, i.e. between the plate 6 and the drainage pipe on both sides of the drainage pipe.
• OMPI , WPO _ has a smooth surface.
• the drainage pipe may as well have a smooth_ surface and the exterior plate have a corrugated form, such as indicated in the embodiments of figures 6 and 7.
• the unit of figure 6 is placed on a filtering mat 9.
• the .filtering mat 9 has as its object to ensure effective filtering ⁇ f the incoming water.
• the exterior plate 12 is snapped over the drainage pipe 2.
• the exterior plate is smooth and the pipe is corrugated, but this could of course be vice versa, or both elements being corrugated with different .degree of corrugation.
• the holes may be made substantially bigger than for common drainage pipes. Because the water to be drained rises slowly upwards before it reaches the holes, sand, soil, particles etc. will be deposited and not enter into the drainage pipe. Another considerable advantage of the system consists in that the earth masses may be put back into the ditch over the drainage pipes after they with their covering plates.or the like have been placed on common filtering bed, sand, gravel, sawdust or other material.
• the arrangement according to figures 11 and 12 consists of two parts, where the first 'part is made from an internal pipe 13 with the said inlet openings 16 placed in the upper half of the pipe.
• This pipe 13 thus forms the outlet section of the arrangement.
• the other portion consist of a pipe or a jafcket 14 surrounding the first part and having said openings in the lower half of the pipe or jacket.
• said one array of openings may have the form of a slit arranged in the longitudinal direction Of the jacket, such as in principle for the embodiment of figure 8.
• the inner pipe 13 has a smooth surface
• the.”outer.pipe or jacket 14 has a corrugated surface, the outer limits of the corrugations being indicated by the reference numeral-15.
• the first part 13 may have corrugated surface and the second part 14 have smoothed surface.
• the jacket may possibly be snapped over the inner tube 13, such as in ⁇ dicated as an example in figure 8.
• the first part may of course be pushed into the second part.

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)
• Sewage (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• Drying Of Solid Materials (AREA)

Priority Applications (5)

Applications Claiming Priority (3)

Publications (1)

Family

ID=26647696

Family Applications (1)

Country Status (7)

Cited By (12)

Citations (6)

Family Cites Families (1)

• 1980
  • 1980-11-28 DE DE8080902267T patent/DE3069236D1/de not_active Expired
  • 1980-11-28 GB GB8122406A patent/GB2076927B/en not_active Expired
  • 1980-11-28 EP EP19800902267 patent/EP0040621B1/en not_active Expired
  • 1980-11-28 NL NL8020436A patent/NL8020436A/nl unknown
  • 1980-11-28 WO PCT/NO1980/000040 patent/WO1981001580A1/en active IP Right Grant
• 1981
  • 1981-07-24 FI FI812327A patent/FI71807C/fi not_active IP Right Cessation
  • 1981-07-27 DK DK335981A patent/DK151108C/da not_active IP Right Cessation

Patent Citations (6)

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