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
  • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
• • 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
• • 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

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Extrusion Moulding Of Plastics Or The Like (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Nozzles (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=5688755

Family Applications (1)

Country Status (12)

Families Citing this family (2)

• 1967
  • 1967-10-14 DE DE1967K0063607 patent/DE1704769B2/en active Granted
  • 1967-10-14 DE DE1704769A patent/DE1704769C3/en not_active Expired
• 1968
  • 1968-10-01 AT AT956468A patent/AT312267B/en not_active IP Right Cessation
  • 1968-10-10 BE BE722121D patent/BE722121A/xx not_active IP Right Cessation
  • 1968-10-11 LU LU57066D patent/LU57066A1/xx unknown
  • 1968-10-11 NL NL686814606A patent/NL154150B/en not_active IP Right Cessation
  • 1968-10-12 NO NO684067A patent/NO135169C/no unknown
  • 1968-10-14 FR FR1589303D patent/FR1589303A/fr not_active Expired
  • 1968-10-14 FI FI682903A patent/FI48998C/en active
  • 1968-10-14 GB GB48638/68A patent/GB1210970A/en not_active Expired
  • 1968-10-14 IE IE1222/68A patent/IE32521B1/en unknown
  • 1968-10-14 DK DK493868AA patent/DK120457B/en not_active IP Right Cessation
  • 1968-10-14 CH CH1533668A patent/CH480160A/en not_active IP Right Cessation

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