US2713369A - Thermoplastic container - Google Patents

Thermoplastic container Download PDF

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Publication number
US2713369A
US2713369A US478017A US47801754A US2713369A US 2713369 A US2713369 A US 2713369A US 478017 A US478017 A US 478017A US 47801754 A US47801754 A US 47801754A US 2713369 A US2713369 A US 2713369A
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US
United States
Prior art keywords
container
head
section
head piece
mold
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 - Lifetime
Application number
US478017A
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English (en)
Inventor
Strahm Andre
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.)
Uni Tubo S A
Uni-Tubo S A
Original Assignee
Uni Tubo S A
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 Uni Tubo S A filed Critical Uni Tubo S A
Priority to US478017A priority Critical patent/US2713369A/en
Application granted granted Critical
Publication of US2713369A publication Critical patent/US2713369A/en
Priority to FR1136438D priority patent/FR1136438A/fr
Priority to BE542707D priority patent/BE542707A/xx
Priority to GB34582/55A priority patent/GB795154A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1228—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one monotone curved joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B29C66/5432—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles joining hollow covers and hollow bottoms to open ends of container bodies
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • 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
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/04—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • 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
    • B65D35/12—Connections between body and closure-receiving bush
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29L2001/00—Articles provided with screw threads
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/41—Processes of molding collapsible tubes

Definitions

  • This invention relates to containers including flexible- Wall containers, such as the usual squeeze bottles and collapsible tubes which are generally made of a suitable plastic and employed for cosmetics, foods, pharmaceuticals, etc. v
  • the primary object of the invention is to provide a construction having improved sealing qualities and enhanced rigidity.
  • the containers will withstand filling and handling without objectionably affecting either their general appearance or the contents.
  • Containers according to this invention are best made by following the methods described and claimed in my ⁇ United States Patent No. 2,673,374, March 30, 1954, and my copending applications, Serial No. 419,793, filed March 30, 1954, and Serial No. 466,919, led November 4, 1954, of which this application is a continuation-inpart.
  • the present invention provides a container of conventional thermoplastic material, such as polyethylene, polyvinyl chloride, etc., having a tubular body and a head piece continuous with one, e. g., the upper, end of said body, a relatively narrow band portion of the inner surface of the material of the body at said end overlapping and fused with a band of equal width of the outer surface of the head piece, thereby to form a joint area which is continuous circumferentially and also vertically, and which includes both the top and side of the container at the said upper end of the same.
  • conventional thermoplastic material such as polyethylene, polyvinyl chloride, etc.
  • Figure l is a partial section of a mold with the head piece being formed by injection molding and the body and head piece being joined by fusing;
  • Figure 2 is a partial section of the container formed in Figure 1 and illustrating the joint area extending continuously both peripherally and also on a vertical curve both substantially vertically and at an angle with respect to the vertical;
  • Figure 3 is a partial enlarged section of the joint shown in Figure 2;
  • Figure 4 is a view similar to Figure 3 of a modification
  • Figure 5 is a view similar to Figure l showing a modilied mold and joint
  • Figure 6 is a view like Figure 2 of the container of Figure 5;
  • Figure 7 is a partial section of another modified joint
  • Figure 8 is an enlarged view of Figure 7;
  • Figure 9 is a partial view of the lower portion of a sealed collapsible tube
  • Figure 11 is a partial View of the lower portion of a sealed tubular bottle or other container
  • Figure 12' is a section on line 12--12 of Figure ll.
  • the conventional mold has the mandrel 10 provided at its upper end with a substantially frusto-conical mold head section 11 terminating in a neck mold section 12. As shown, the outer surface of the head section 11 is curved in vertical section as at 13. The neck section 12 terminates in a mold guide pin 14.
  • the female mold member is indicated at 15 and has a recess provided with an internal, generally frusto-conical surface 16 curved in vertical section and substantially conforming to the opposed outer surface of the head 11.
  • the said recess16 terminates in a thread-forming neck section 17 cooperating with the mandrel neck section 12 and also having a recess 18 for receiving the mandrel guide pin 14.
  • the preformed thermoplastic tubular body 19 is held fixed, as shown, between the mandrel 11 and the female mold member 15 by friction or any simple stop means.
  • the tubular body 19 has its upper end 2i) extended to expose its innerwall surface, i. e., so as to be free of the adjacent opposed outer surface 13 of the head 11.
  • the exposed or free portion of the upper end 2 abuts the adjacent opposed inner curved surface 16 of the female mold member 15', both vertically, as at 21, and on an inwardly extending curve, as at 22.
  • the body of the tubular member may, in this regard, have the length of the exposed portion 21-22 varied, as desired.
  • the important consideration is that there be no wrinkles in the final container by reason of the extension 2Q and that the same have a substantially vertical portion 21 and an inwardly curved portion 22 so as to form a smooth, continuous mold surface, on the one hand, and, on the other, a smooth, continuous overlapping outer surface for the container at the point where the head piece is vfused and united to the end of the tubular body, as shown, i. e., at the top surface S and side S' of the container.
  • the openings 23 in the mold element 15 are provided to allow the injection of molten plastic into the mold space provided between the opposed surfaces 13 and 16 of the mandrel 11 and female mold member 15, respectively.
  • the exposed extension 2i) of the thermoplastic tubular body 19 also forms a part of the female mold.
  • the plastic injected through the openings 23 of the female member fills the mold space provided as above to form an injection-molded head piece or top 24, which is generally frusto-conical but may be of any desired shape, e. g., flat, as shown in Figure 13.
  • the plastic extension 20 of the tubular body forms a part of the outer wall of the mold space, the hot molten plastic fuses the same at its inner face to form an integral union and joint area, as shown.
  • the extended portion 20 with its vertical portion 21 and its inwardly curved portion 22 overlies the top and side of the head piece produced by injection molding and merges with the material thereof along the lower 3 narrow marginal area of the head Figure 1.
  • the female mold has a Vcircular recess 27 which produces a circular, smooth and rounded, raised, overlapping ring portion 28, as shown in Figure 6.
  • the neck mold section has different thread-formiiig portions, as shown.
  • the frustoconical surface 13 of the mandrel is substantially straight in vertical section, as shown.
  • the joint area 29 is on a continuous curve, as shown in enlarged detail in Figure 8, and includes the continuous, vertical and inclined fused joint portions.
  • the numeral 30 indicates a fused joint at the bottom of the tapering tubular body 19, which here is in the forni of the usual tapered collapsible tube. This seal is formed after the tube has been lled through the bottom.
  • Top filling or bottom filling may be employed, it being noted that in either case, the body of the tapered tube or cylindrical bottle is devoid of external projections which would interfere with handling, packing or printing.
  • the body, the head piece and the bottom are formed of a conventional thermoplastic material, such as polyethylene, but, as explained, other polymeric thermopiece, as shown in ⁇ 4 tively greater thickness than the body wall 19 and this is preferred, there are instances where the thickness of the head piece may be less or equal to the thickness of the body wall.
  • a container of thermoplastic material having a tubular body portion and a head portion integrally fused thereto, said head portion provided with a narrow stepped marginal area overlapping and fused with a narrow band area of the body portion at one end of the saine on the outer and top surfaces of the head portion to form a joint area, said joint area comprising a continuous circumferential downwardly extending portion of the stepped margin of the head portion disposed inside ot the body wall and the narrow marginal band of the body wall extending partially over the top surface of the head portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Tubes (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US478017A 1954-12-28 1954-12-28 Thermoplastic container Expired - Lifetime US2713369A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US478017A US2713369A (en) 1954-12-28 1954-12-28 Thermoplastic container
FR1136438D FR1136438A (fr) 1954-12-28 1955-09-28 Tubes en matière plastique à tête fusionnée
BE542707D BE542707A (cs) 1954-12-28 1955-11-10
GB34582/55A GB795154A (en) 1954-12-28 1955-12-02 Thermoplastic container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US478017A US2713369A (en) 1954-12-28 1954-12-28 Thermoplastic container

Publications (1)

Publication Number Publication Date
US2713369A true US2713369A (en) 1955-07-19

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US478017A Expired - Lifetime US2713369A (en) 1954-12-28 1954-12-28 Thermoplastic container

Country Status (4)

Country Link
US (1) US2713369A (cs)
BE (1) BE542707A (cs)
FR (1) FR1136438A (cs)
GB (1) GB795154A (cs)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876818A (en) * 1955-10-28 1959-03-10 Smith Kline French Lab Polyethylene bottle
US2915098A (en) * 1958-07-28 1959-12-01 Central States Paper & Bag Co Self-contouring bags
US2936494A (en) * 1957-11-12 1960-05-17 Ideal Toy Corp Method of molding flash-free plastic articles
US2936489A (en) * 1957-05-22 1960-05-17 Owens Illinois Glass Co Method for making composite plastic containers
US2939603A (en) * 1956-11-15 1960-06-07 Various Assignees Plastic containers
US3074837A (en) * 1956-05-26 1963-01-22 Flax Valer Method for sealing thermoplastic tubing
US3086249A (en) * 1959-12-12 1963-04-23 Owens Illinois Glass Co Method of producing composite plastic articles
US3231152A (en) * 1963-10-08 1966-01-25 American Can Co Pressure container
US3260777A (en) * 1962-12-07 1966-07-12 American Can Co Method of making a collapsible container structure
US3270114A (en) * 1962-01-08 1966-08-30 Jr Edward B Westlake Method of molding material to one end of a preformed thermoplastic tube
US3281295A (en) * 1964-08-25 1966-10-25 Capucio Eugene Method of capping
US3295725A (en) * 1962-12-07 1967-01-03 American Can Co Collapsible dispensing container with an impermeable barrier both in its laminated wall and in its headpiece
US3424837A (en) * 1963-11-11 1969-01-28 Fraser & Glass Ltd Forming of articles from plastic material by injection moulding
US3434644A (en) * 1966-09-01 1969-03-25 Phillips Petroleum Co Container
US3682107A (en) * 1968-12-31 1972-08-08 John Macmanus Apparatus for dispensing material on pastry and the like
US3960516A (en) * 1973-05-29 1976-06-01 Norton Company Grinding wheel manufacture
FR2419731A1 (fr) * 1978-03-17 1979-10-12 Duni Bila Ab Perfectionnements aux conteneurs a liquide en forme de sacs, destines specialement a des traitements medicaux
US4261567A (en) * 1979-06-11 1981-04-14 `Totes`, Incorporated Hand grip
US5076470A (en) * 1989-07-26 1991-12-31 Yoshida Industry Co., Ltd. Tube container
US5219373A (en) * 1989-07-26 1993-06-15 Yoshida Industry Co., Ltd. Method of fabricating tube container
US5288448A (en) * 1989-06-07 1994-02-22 Tetra Pak Holdings & Finance S.A. Method for producing a package for flowable substances
US5425470A (en) * 1993-12-27 1995-06-20 Ford Motor Company Fuel tank closure
US5705112A (en) * 1989-07-14 1998-01-06 Gram; Jes Tougaard Procedure for the production of an assembled object
US5857497A (en) * 1985-08-05 1999-01-12 Wangner Systems Corporation Woven multilayer papermaking fabric having increased stability and permeability
US6210621B1 (en) * 1998-12-04 2001-04-03 Enamelon, Inc. Method for making plural chambered dispensing tubes
US6846443B1 (en) * 2000-03-16 2005-01-25 Pechiney Plastic Packaging, Inc Method for forming an improved container
US20060157501A1 (en) * 2005-01-20 2006-07-20 Pechiney Plastic Packaging, Inc. Container and method and apparatus for forming the container
US20070181582A1 (en) * 2004-03-04 2007-08-09 Inergy Automotive Systems System for fastening two components, method of fastening by means of this fastening system, and fuel system
US20110089606A1 (en) * 2008-06-19 2011-04-21 Tetra Laval Holdings & Finance S. A. Method and an apparatus for injection moulding
US20130341828A1 (en) * 2011-04-04 2013-12-26 Lindal France Sas Injection-molding press

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176560B (de) * 1957-05-28 1964-08-20 Charles Martin Verbesserungen an Behaeltern aus thermo-plastischen Stoffen
US3007603A (en) * 1959-11-23 1961-11-07 Steel Heddle Mfg Co Metallic receptacles
JPS59172148U (ja) * 1983-05-02 1984-11-17 吉田工業株式会社 チユ−ブ容器
JPS60169139U (ja) * 1984-04-19 1985-11-09 吉田工業株式会社 チユ−ブ容器
JPH0653458B2 (ja) * 1986-07-30 1994-07-20 日産自動車株式会社 自動車用ウエザ−ストリツプ
EP0463658B1 (en) * 1990-05-30 1995-11-29 Colgate-Palmolive Company Integral self-closing dispensing closure for a tube
SE9002442D0 (sv) * 1990-07-16 1990-07-16 Norden Packaging Mach Injection thermoplastic container and methods for producing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678330A (en) * 1926-05-24 1928-07-24 Robert G Clyne Container and process of producing the same
US1870903A (en) * 1928-12-15 1932-08-09 Fulton Sylphon Co Dispensing tube
US1981334A (en) * 1930-07-17 1934-11-20 Colt S Mfg Co Article of manufacture
US2678471A (en) * 1950-10-18 1954-05-18 Injection Molding Company Method of sealing inserts in containers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1678330A (en) * 1926-05-24 1928-07-24 Robert G Clyne Container and process of producing the same
US1870903A (en) * 1928-12-15 1932-08-09 Fulton Sylphon Co Dispensing tube
US1981334A (en) * 1930-07-17 1934-11-20 Colt S Mfg Co Article of manufacture
US2678471A (en) * 1950-10-18 1954-05-18 Injection Molding Company Method of sealing inserts in containers

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876818A (en) * 1955-10-28 1959-03-10 Smith Kline French Lab Polyethylene bottle
US3074837A (en) * 1956-05-26 1963-01-22 Flax Valer Method for sealing thermoplastic tubing
US2939603A (en) * 1956-11-15 1960-06-07 Various Assignees Plastic containers
US2936489A (en) * 1957-05-22 1960-05-17 Owens Illinois Glass Co Method for making composite plastic containers
US2936494A (en) * 1957-11-12 1960-05-17 Ideal Toy Corp Method of molding flash-free plastic articles
US2915098A (en) * 1958-07-28 1959-12-01 Central States Paper & Bag Co Self-contouring bags
US3086249A (en) * 1959-12-12 1963-04-23 Owens Illinois Glass Co Method of producing composite plastic articles
US3270114A (en) * 1962-01-08 1966-08-30 Jr Edward B Westlake Method of molding material to one end of a preformed thermoplastic tube
US3260777A (en) * 1962-12-07 1966-07-12 American Can Co Method of making a collapsible container structure
US3295725A (en) * 1962-12-07 1967-01-03 American Can Co Collapsible dispensing container with an impermeable barrier both in its laminated wall and in its headpiece
US3231152A (en) * 1963-10-08 1966-01-25 American Can Co Pressure container
US3424837A (en) * 1963-11-11 1969-01-28 Fraser & Glass Ltd Forming of articles from plastic material by injection moulding
US3281295A (en) * 1964-08-25 1966-10-25 Capucio Eugene Method of capping
US3434644A (en) * 1966-09-01 1969-03-25 Phillips Petroleum Co Container
US3682107A (en) * 1968-12-31 1972-08-08 John Macmanus Apparatus for dispensing material on pastry and the like
US3960516A (en) * 1973-05-29 1976-06-01 Norton Company Grinding wheel manufacture
FR2419731A1 (fr) * 1978-03-17 1979-10-12 Duni Bila Ab Perfectionnements aux conteneurs a liquide en forme de sacs, destines specialement a des traitements medicaux
US4240482A (en) * 1978-03-17 1980-12-23 Duni Bila Ab Bag-like liquid containers, especially for medical treatment
US4261567A (en) * 1979-06-11 1981-04-14 `Totes`, Incorporated Hand grip
US5857497A (en) * 1985-08-05 1999-01-12 Wangner Systems Corporation Woven multilayer papermaking fabric having increased stability and permeability
US5288448A (en) * 1989-06-07 1994-02-22 Tetra Pak Holdings & Finance S.A. Method for producing a package for flowable substances
US5705112A (en) * 1989-07-14 1998-01-06 Gram; Jes Tougaard Procedure for the production of an assembled object
US5219373A (en) * 1989-07-26 1993-06-15 Yoshida Industry Co., Ltd. Method of fabricating tube container
US5076470A (en) * 1989-07-26 1991-12-31 Yoshida Industry Co., Ltd. Tube container
US5425470A (en) * 1993-12-27 1995-06-20 Ford Motor Company Fuel tank closure
US6210621B1 (en) * 1998-12-04 2001-04-03 Enamelon, Inc. Method for making plural chambered dispensing tubes
US6846443B1 (en) * 2000-03-16 2005-01-25 Pechiney Plastic Packaging, Inc Method for forming an improved container
US20070181582A1 (en) * 2004-03-04 2007-08-09 Inergy Automotive Systems System for fastening two components, method of fastening by means of this fastening system, and fuel system
US20060157501A1 (en) * 2005-01-20 2006-07-20 Pechiney Plastic Packaging, Inc. Container and method and apparatus for forming the container
US20110089606A1 (en) * 2008-06-19 2011-04-21 Tetra Laval Holdings & Finance S. A. Method and an apparatus for injection moulding
US20130341828A1 (en) * 2011-04-04 2013-12-26 Lindal France Sas Injection-molding press
US9539748B2 (en) * 2011-04-04 2017-01-10 Lindal France Sas Injection-molding press

Also Published As

Publication number Publication date
FR1136438A (fr) 1957-05-14
BE542707A (cs) 1955-11-30
GB795154A (en) 1958-05-14

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