DK538374A - - Google Patents

Info

Publication number
DK538374A
DK538374A DK538374A DK538374A DK538374A DK 538374 A DK538374 A DK 538374A DK 538374 A DK538374 A DK 538374A DK 538374 A DK538374 A DK 538374A DK 538374 A DK538374 A DK 538374A
Authority
DK
Denmark
Application number
DK538374A
Other versions
DK143416C (da
DK143416B (da
Inventor
H-J Baar
Original Assignee
Baar H J
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
Priority claimed from DE19732351768 external-priority patent/DE2351768C3/de
Application filed by Baar H J filed Critical Baar H J
Publication of DK538374A publication Critical patent/DK538374A/da
Publication of DK143416B publication Critical patent/DK143416B/da
Application granted granted Critical
Publication of DK143416C publication Critical patent/DK143416C/da

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0053—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes by machining, e.g. cutting, grinding, projections on the tube wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0061—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes whereby the tube moves axially or radially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
    • B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
DK538374A 1973-10-16 1974-10-15 Plastdraenroer med vandindstroemningsaabninger og fremgangsmaade samt apparat til fremstilling af draenroeret DK143416C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732351768 DE2351768C3 (de) 1973-10-16 Plastik-Dränrohr mit quergewellter Rohrwand und mit durch Ringfilter abgedeckten Wassereintrittsöffnungen und Vorrichtung zum Herstellen eines solchen Dränrohres
DE2351768 1973-10-16

Publications (3)

Publication Number Publication Date
DK538374A true DK538374A (da) 1975-06-16
DK143416B DK143416B (da) 1981-08-17
DK143416C DK143416C (da) 1981-12-21

Family

ID=5895507

Family Applications (1)

Application Number Title Priority Date Filing Date
DK538374A DK143416C (da) 1973-10-16 1974-10-15 Plastdraenroer med vandindstroemningsaabninger og fremgangsmaade samt apparat til fremstilling af draenroeret

Country Status (8)

Country Link
AT (1) AT343054B (da)
BE (1) BE821117A (da)
DK (1) DK143416C (da)
FI (1) FI301074A (da)
FR (1) FR2247661A1 (da)
GB (1) GB1479000A (da)
NL (1) NL7413601A (da)
SE (1) SE410631B (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI70388C (fi) * 1985-07-24 1986-09-19 Uponor Ab Saett och anordning foer att aostadkomma ett haol i ett plastroer
CA1329871C (en) * 1989-05-17 1994-05-31 Manfred A. A. Lupke Method for forming tubing utilizing suction and pneumatic pressure at the surface of the cooling plug
US5296188A (en) * 1992-01-14 1994-03-22 Corma, Inc. Methods for forming tubing utilizing suction and pneumatic pressure at the surface of the cooling plug
US6016848A (en) * 1996-07-16 2000-01-25 W. L. Gore & Associates, Inc. Fluoropolymer tubes and methods of making same
CN112610757B (zh) * 2020-12-18 2022-07-26 康命源（贵州）科技发展有限公司 一种耐腐蚀hdpe双壁波纹管

Also Published As

Publication number Publication date
SE410631B (sv) 1979-10-22
DK143416C (da) 1981-12-21
FI301074A (da) 1975-04-17
NL7413601A (nl) 1975-04-18
FR2247661A1 (da) 1975-05-09
DE2351768A1 (de) 1975-08-28
ATA804874A (de) 1977-08-15
BE821117A (fr) 1975-02-17
DE2351768B2 (de) 1976-01-22
GB1479000A (en) 1977-07-06
AT343054B (de) 1978-05-10
DK143416B (da) 1981-08-17
SE7412941L (da) 1975-04-17

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