CH487732A - Spray head for the production of tubular plastic films - Google Patents

Spray head for the production of tubular plastic films

Info

Publication number
CH487732A
CH487732A CH355069A CH355069A CH487732A CH 487732 A CH487732 A CH 487732A CH 355069 A CH355069 A CH 355069A CH 355069 A CH355069 A CH 355069A CH 487732 A CH487732 A CH 487732A
Authority
CH
Switzerland
Prior art keywords
production
spray head
plastic films
tubular plastic
tubular
Prior art date
Application number
CH355069A
Other languages
German (de)
Inventor
Upmeier Hartmut
Original Assignee
Windmoeller & Hoelscher
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 Windmoeller & Hoelscher filed Critical Windmoeller & Hoelscher
Publication of CH487732A publication Critical patent/CH487732A/en

Links

Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CH355069A 1968-03-18 1969-03-10 Spray head for the production of tubular plastic films CH487732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1729128 1968-03-18

Publications (1)

Publication Number Publication Date
CH487732A true CH487732A (en) 1970-03-31

Family

ID=5690536

Family Applications (1)

Application Number Title Priority Date Filing Date
CH355069A CH487732A (en) 1968-03-18 1969-03-10 Spray head for the production of tubular plastic films

Country Status (2)

Country Link
CH (1) CH487732A (en)
FR (1) FR2004112A1 (en)

Also Published As

Publication number Publication date
FR2004112A1 (en) 1969-11-21

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Legal Events

Date Code Title Description
PL Patent ceased