FR2248372A1 - Drain pipe sheathed with filter material contg. ion exchanger - to prevent clogging by iron ocher pptd. from the drainage water - Google Patents

Drain pipe sheathed with filter material contg. ion exchanger - to prevent clogging by iron ocher pptd. from the drainage water

Info

Publication number
FR2248372A1
FR2248372A1 FR7435079A FR7435079A FR2248372A1 FR 2248372 A1 FR2248372 A1 FR 2248372A1 FR 7435079 A FR7435079 A FR 7435079A FR 7435079 A FR7435079 A FR 7435079A FR 2248372 A1 FR2248372 A1 FR 2248372A1
Authority
FR
France
Prior art keywords
ion exchanger
pptd
drain pipe
filter material
iron
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.)
Withdrawn
Application number
FR7435079A
Other languages
English (en)
French (fr)
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.)
OLTMANNS CHARLOTTE
Original Assignee
OLTMANNS CHARLOTTE
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
Application filed by OLTMANNS CHARLOTTE filed Critical OLTMANNS CHARLOTTE
Publication of FR2248372A1 publication Critical patent/FR2248372A1/fr
Withdrawn legal-status Critical Current

Links

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
FR7435079A 1973-10-22 1974-10-18 Drain pipe sheathed with filter material contg. ion exchanger - to prevent clogging by iron ocher pptd. from the drainage water Withdrawn FR2248372A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732352863 DE2352863C2 (de) 1973-10-22 1973-10-22 Dränrohr mit Ummantelung

Publications (1)

Publication Number Publication Date
FR2248372A1 true FR2248372A1 (en) 1975-05-16

Family

ID=5896076

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435079A Withdrawn FR2248372A1 (en) 1973-10-22 1974-10-18 Drain pipe sheathed with filter material contg. ion exchanger - to prevent clogging by iron ocher pptd. from the drainage water

Country Status (3)

Country Link
DE (1) DE2352863C2 (nl)
FR (1) FR2248372A1 (nl)
NL (1) NL7413763A (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125696A2 (de) * 1983-05-17 1984-11-21 Eva-Maria Rasbach Mehrschichtiger poröser Schlauch
FR2558925A1 (fr) * 1984-01-27 1985-08-02 Oltmanns Ziegel & Kunststoff Tuyau de drainage avec un enrobage filtrant en fibres naturelles et procede de fabrication
CN100439604C (zh) * 2005-05-16 2008-12-03 胡鸣群 软弱地层压密固结排水方法及使用于此方法的集水井管

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230323C2 (de) * 1982-08-14 1985-09-05 Oltmanns Ziegel Und Kunststoffe Gmbh, 2905 Edewecht Dränrohr mit einer filternden Ummantelung aus Naturfasern
EP0208043A1 (en) * 1985-07-12 1987-01-14 Rolf Jansrudvangen Method of producing a strip-formed filter for use in drainage
DE3533135A1 (de) * 1985-09-17 1987-03-19 Mst Maschinenbau Gmbh Verfahren und vorrichtung zum ummanteln von draenagerohren
DE3637168C1 (en) * 1986-10-31 1988-05-05 Oltmanns Kunststoffwerk Gmbh Full filter pipe for drainage purposes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7017424U (de) * 1970-05-09 1970-08-27 Ripken Charlotte Filtervorrichtung, insbesondere fuer drainagerohre.
DE2105727A1 (de) * 1971-02-08 1972-08-17 Böske, Johannes, 2849 Goldenstedt Dränfilter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125696A2 (de) * 1983-05-17 1984-11-21 Eva-Maria Rasbach Mehrschichtiger poröser Schlauch
EP0125696A3 (de) * 1983-05-17 1985-05-29 Eva-Maria Rasbach Mehrschichtiger poröser Schlauch
FR2558925A1 (fr) * 1984-01-27 1985-08-02 Oltmanns Ziegel & Kunststoff Tuyau de drainage avec un enrobage filtrant en fibres naturelles et procede de fabrication
CN100439604C (zh) * 2005-05-16 2008-12-03 胡鸣群 软弱地层压密固结排水方法及使用于此方法的集水井管

Also Published As

Publication number Publication date
DE2352863C2 (de) 1982-06-16
NL7413763A (nl) 1975-04-24
DE2352863A1 (de) 1975-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse