GB882391A - Improvements in or relating to the production of one piece thermoplastic containers - Google Patents

Improvements in or relating to the production of one piece thermoplastic containers

Info

Publication number
GB882391A
GB882391A GB20394/59A GB2039459A GB882391A GB 882391 A GB882391 A GB 882391A GB 20394/59 A GB20394/59 A GB 20394/59A GB 2039459 A GB2039459 A GB 2039459A GB 882391 A GB882391 A GB 882391A
Authority
GB
United Kingdom
Prior art keywords
sheet
suction
plunger
relating
production
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.)
Expired
Application number
GB20394/59A
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.)
Electrolux Household Appliances Ltd
Original Assignee
Electrolux Ltd
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 Electrolux Ltd filed Critical Electrolux Ltd
Publication of GB882391A publication Critical patent/GB882391A/en
Expired legal-status Critical Current

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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

882,391. Moulding hollow articles. ELECTROLUX Ltd. June 15, 1959 [June 16, 1958], No. 20394/59. Class 87(2). A container having spaced inner and outer side walls is made by clamping a thermoplastic sheet 21 across a mould 24 having a reentrant part 35, heating the sheet, applying a slight suction to the underside of the sheet, Fig. 4, moving a plunger 37 down and shutting off the suction, applying suction to the upper side of the sheet Fig. 6, shutting off the suction and moving the plunger 37 down to the Fig. 7 position. A strong suction is then applied to the lower side of the sheet to mould it to its final form, Fig. 8. If the part 35 is so long that it prevents the sheet from taking up the Fig. 4 position, it is mounted on a plunger, Fig. 9 (not shown) to allow it to be moved to and from its operative position.
GB20394/59A 1958-06-16 1959-06-15 Improvements in or relating to the production of one piece thermoplastic containers Expired GB882391A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE882391X 1958-06-16
SE1186200X 1958-06-16
SE573058 1958-06-16
SE1227674X 1958-06-16

Publications (1)

Publication Number Publication Date
GB882391A true GB882391A (en) 1961-11-15

Family

ID=27484492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20394/59A Expired GB882391A (en) 1958-06-16 1959-06-15 Improvements in or relating to the production of one piece thermoplastic containers

Country Status (2)

Country Link
FR (1) FR1227674A (en)
GB (1) GB882391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5798079A (en) * 1996-08-20 1998-08-25 Fort James Corporation Method and apparatus for forming drink-thru cup lids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5798079A (en) * 1996-08-20 1998-08-25 Fort James Corporation Method and apparatus for forming drink-thru cup lids

Also Published As

Publication number Publication date
FR1227674A (en) 1960-08-22

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