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GB1316589A - Flexible cylinders for use as squeeze tube bodies - Google Patents

Flexible cylinders for use as squeeze tube bodies

Info

Publication number
GB1316589A
GB1316589A GB4086470A GB4086470A GB1316589A GB 1316589 A GB1316589 A GB 1316589A GB 4086470 A GB4086470 A GB 4086470A GB 4086470 A GB4086470 A GB 4086470A GB 1316589 A GB1316589 A GB 1316589A
Authority
GB
United Kingdom
Prior art keywords
mould
cylinder
balloon
deflated
cylindrical
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
GB4086470A
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.)
Polytube Inc
Original Assignee
Polytube Inc
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 Polytube Inc filed Critical Polytube Inc
Publication of GB1316589A publication Critical patent/GB1316589A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/20—Flexible squeeze tubes, e.g. for cosmetics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Tubes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

1316589 Moulding tubes POLYTUBE Inc 25 Aug 1970 [28 Aug 1969] 40864/70 Heading B5A [Also in Divisions B8 and F2] A flexible cylinder for use as the body of a collapsible, tubular container, e.g. for toothpaste, is made from a laminate of metal foil sandwiched between plastics layers, the laminate being convolutely wound through approximately 720 degrees (Fig. 6), placed in a cylindrical mould, urged outwardly against the mould surface by an inflatable mandrel, and heated by conduction through the mould so that the plastics layers fuse together (Fig. 4). The foil 110 may be of aluminium and the plastics material 106 polyethylene. The convolute winding is effected in a chamber 138, Fig. 12, having a tangential entry 150, by a driven rubber roll 154. The cylindrical preform is then pushed from chamber 138 into one of a number of cylindrical moulds 142b, Figs. 16, 17 and 23, mounted on an indexable table, Figs. 18, 20-22 (not shown). After indexing the table one step a rod 174 carrying a balloon mandrel 172 is inserted and inflation to the Fig. 17 position effected. The wall thickness of balloon 172 increases towards its ends so that inflation begins midway along the balloon's length. This ensures elimination of air from between adjacent turns of the cylindrical preform. Semicylindrical heating blocks 212 are now clamped around the mould 142b. After fusion of the plastics layers, the table is indexed to move the mould 142b through three cooling stations, at each of which cooling shells, similar in form to heating shells 212, are clamped around the mould. The balloon 172 is deflated and immediately reflated between the second and third cooling stations and is finally deflated after the third cooling station to break any bond between the formed cylinder and the mould. To remove the cylinder from the mould, a pick-up tube, Figs. 27-34 (not shown), similar in form to the inflatable mandrel, is inserted into the cylinder, inflated, withdrawn (together with the cylinder) from the mould, deflated and passed longitudinally through a slot in a plate to strip the cylinder from the pick-up tube.
GB4086470A 1969-08-28 1970-08-25 Flexible cylinders for use as squeeze tube bodies Expired GB1316589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85385869A 1969-08-28 1969-08-28

Publications (1)

Publication Number Publication Date
GB1316589A true GB1316589A (en) 1973-05-09

Family

ID=25317084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4086470A Expired GB1316589A (en) 1969-08-28 1970-08-25 Flexible cylinders for use as squeeze tube bodies

Country Status (13)

Country Link
AT (1) AT314328B (en)
BE (1) BE755348A (en)
CA (1) CA936844A (en)
CH (1) CH541406A (en)
CS (1) CS162729B2 (en)
DE (2) DE2042876A1 (en)
ES (3) ES161319Y (en)
FR (1) FR2059731B1 (en)
GB (1) GB1316589A (en)
IL (1) IL35187A (en)
NL (1) NL7012812A (en)
SE (1) SE369699B (en)
ZA (1) ZA705813B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638672A1 (en) * 1988-11-10 1990-05-11 Bertin & Cie Rigid tubular bar made of composite material, and its method of manufacture
NO344197B1 (en) * 2018-05-04 2019-10-14 Partek As Electrical insulation of plate-shaped electrodes
CN114777556A (en) * 2022-05-23 2022-07-22 青岛能源设计研究院有限公司 Energy-saving gas heating system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD280745S (en) 1983-01-03 1985-09-24 Apco Graphics, Inc. Emergency message display sign

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982457A (en) * 1958-11-28 1961-05-02 Dal Mon Research Co Tubular structures

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638672A1 (en) * 1988-11-10 1990-05-11 Bertin & Cie Rigid tubular bar made of composite material, and its method of manufacture
NO344197B1 (en) * 2018-05-04 2019-10-14 Partek As Electrical insulation of plate-shaped electrodes
CN114777556A (en) * 2022-05-23 2022-07-22 青岛能源设计研究院有限公司 Energy-saving gas heating system

Also Published As

Publication number Publication date
AT314328B (en) 1974-03-25
IL35187A0 (en) 1970-10-30
ES161319Y (en) 1971-06-16
ES383099A1 (en) 1972-12-16
DE2042876A1 (en) 1971-03-04
IL35187A (en) 1974-01-14
SE369699B (en) 1974-09-16
NL7012812A (en) 1971-03-02
CA936844A (en) 1973-11-13
ES161319U (en) 1970-12-01
CH541406A (en) 1973-09-15
FR2059731A1 (en) 1971-06-04
DE7032238U (en) 1971-03-18
BE755348A (en) 1971-03-01
CS162729B2 (en) 1975-07-15
ES383100A1 (en) 1972-12-16
FR2059731B1 (en) 1974-07-12
ZA705813B (en) 1971-04-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees