NL93022C - - Google Patents

Info

Publication number
NL93022C
NL93022C NL93022DA NL93022C NL 93022 C NL93022 C NL 93022C NL 93022D A NL93022D A NL 93022DA NL 93022 C NL93022 C NL 93022C
Authority
NL
Netherlands
Application number
Publication of NL93022C publication Critical patent/NL93022C/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/101—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables forming during digging, e.g. underground canalisations or conduits, by bending or twisting a strip of pliable material; by extrusion
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/52—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using external forming surfaces, e.g. sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
NL93022D NL93022C (en)

Publications (1)

Publication Number Publication Date
NL93022C true NL93022C (en)

Family

ID=1836278

Family Applications (1)

Application Number Title Priority Date Filing Date
NL93022D NL93022C (en)

Country Status (1)

Country Link
NL (1) NL93022C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3182459A (en) * 1962-12-05 1965-05-11 Apparatus for positioning fluid barriers
US3217501A (en) * 1959-12-31 1965-11-16 Nat Res Dev Apparatus for forming tubes from strip material
US3217500A (en) * 1961-08-29 1965-11-16 Caterpillar Tractor Co Plastic drain pipe apparatus for forming and laying plastic drain pipe
US3250077A (en) * 1960-03-04 1966-05-10 Nat Res Dev Method and apparatus for forming strip material into tube
US3298183A (en) * 1964-05-11 1967-01-17 Cons Thermoplastics Company Apparatus for erecting a fluid barrier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217501A (en) * 1959-12-31 1965-11-16 Nat Res Dev Apparatus for forming tubes from strip material
US3250077A (en) * 1960-03-04 1966-05-10 Nat Res Dev Method and apparatus for forming strip material into tube
US3217500A (en) * 1961-08-29 1965-11-16 Caterpillar Tractor Co Plastic drain pipe apparatus for forming and laying plastic drain pipe
US3182459A (en) * 1962-12-05 1965-05-11 Apparatus for positioning fluid barriers
US3298183A (en) * 1964-05-11 1967-01-17 Cons Thermoplastics Company Apparatus for erecting a fluid barrier

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