GB2335624A - Blow molded container neck and method of manufacture - Google Patents

Blow molded container neck and method of manufacture Download PDF

Info

Publication number
GB2335624A
GB2335624A GB9910850A GB9910850A GB2335624A GB 2335624 A GB2335624 A GB 2335624A GB 9910850 A GB9910850 A GB 9910850A GB 9910850 A GB9910850 A GB 9910850A GB 2335624 A GB2335624 A GB 2335624A
Authority
GB
United Kingdom
Prior art keywords
mid
neck
mold
stretch
seal
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.)
Granted
Application number
GB9910850A
Other versions
GB2335624B (en
GB9910850D0 (en
Inventor
Laszlo G Sandor
Daniel Luch
Richard E Repp
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.)
Portola Packaging Inc
Original Assignee
Portola Packaging 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 Portola Packaging Inc filed Critical Portola Packaging Inc
Priority claimed from GB9716660A external-priority patent/GB2312642B/en
Publication of GB9910850D0 publication Critical patent/GB9910850D0/en
Publication of GB2335624A publication Critical patent/GB2335624A/en
Application granted granted Critical
Publication of GB2335624B publication Critical patent/GB2335624B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/58Blowing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • B29C49/50Moulds having cutting or deflashing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023Neck construction
    • B65D1/0246Closure retaining means, e.g. beads, screw-threads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/46Snap-on caps or cap-like covers
    • B65D41/48Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics
    • B65D41/485Snap-on caps or cap-like covers non-metallic, e.g. made of paper or plastics with integral internal sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0235Removable lids or covers with integral tamper element
    • B65D43/0237Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element
    • B65D43/0256Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0235Removable lids or covers with integral tamper element
    • B65D43/0237Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element
    • B65D43/0256Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container
    • B65D43/0258Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container leaving friction on both the inside and the outside after removal of the tamper element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00Indexing scheme relating to blow-moulding
    • B29C2949/07Preforms or parisons characterised by their configuration
    • B29C2949/0715Preforms or parisons characterised by their configuration the preform having one end closed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06Injection blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2251/00Details relating to container closures
    • B65D2251/02Grip means
    • B65D2251/023Ribs or recesses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • B65D2401/25Non-metallic tear-off strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342Central part of the lid
    • B65D2543/00398Reinforcing ribs in the central part of the closure
    • B65D2543/00407Reinforcing ribs in the central part of the closure radial
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/005Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container both cup and skirt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00518Skirt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/00629Massive bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/0074Massive bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00796Totality

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

The neck 11 of a container has a smooth seal surface 12 engaged by the inner skirt or plug 66 of a cap 41. The neck 11 of the container is blow molded with the excess trim being cut above the sealing surface 12. An apparatus for blow molding the container has a blow pin and shear surfaces. Above the sealing surface 12, the neck wall slants outward 13 and then bends upward in a short, tapered stretch or flange 16. The exterior of the neck 11 is formed with shoulders 19,26 which engage over locking beads 53,54 on the interior of the outer skirt 48,49 of the cap 41. A method of manufacturing the container neck 11 comprises providing a split mould conforming to the features of the neck structure 11, placing a plastics parison within the mould, blowing air into the parison through a blow pin to expand the parison, forming the seal surface 12 free of parting lines and trimming the flange 16 at a trim line having a diameter exceeding that of surface 12.

Description

1---- 2335624 BLOW MOU>M COWM NEM CAP Q= Refem" 12 Itchtd ApRU 7bh q)pl is
a Continue m-iwPart of U.S. P Appl 5 No.,SW filed r 9, 1995, cadtled BLOW MOLDED CWrADM SMUCMRE, CAP IMM AND NMOD OF FORG SAID NEM BACKGR OF 7HE MYMM 1. FAem of ft This inventhm relates to a mw and h blow m neck cmotn for bottle or o c=, a W h%, a of M mad neck and for fonning aM no- More pudmMy, it to dw mck fird for a blow mokled p; i r,. i - 4 by m &a that when with a cW havhg a pbjg (Le.' h) the m of OM nod 3 Which tm mah is a sed orb= w p& lines and no p has a dim h= dua dw of dbe mal m Heroce d plug seals a a m and 1 is prevented.
2. Mdon of R An is An exemplar of the an is U.S. Patent No. 4,691.834 whkb an upward inward di flexible flange sealingagainst dw em of the intenectim of the outer wall of the plug and the und of top of the cap. lle neck sealing s is, inbez et dy, somewhat wmen and ragged since the neck is cut or ga=t this sealing surf&=. In the prem t invention, howc, the neck it trim on the edge the seal surfa= but mch edge is the porfion of the neck mall a the cap plug.
llbe refer== cited mid Patent No.4,691,834 an H distingle.
1 U.S. Patent Nos. 4,W,876 and 4,799Xl curved plug co s but these are of substantially the am diameters u the edge of de fluges mMe the urde of the top of de cap.
Surnman gf the lndm Ilw bouk of the present invention is blow m in a split mM by teduliques Well h in the UL. The 0 of dbe M which d d neck sn cause dx neck shape bun dm An Wper of die dx nod is U or cut fto d neck ao to eh M6 PC (e.g. trim, gin trim, nun, or-) h one mock sumam c at which the upper portion of dbe p is w fto the neck is c in d an inward upward slanted 11 offier end of de flange m m rge im a c all which extends inward a di dw d dmenid bD m with an i m a of dameter than mid 71m m& zuu above de neck naling 9 may have Y g dkm km a flodible membrane due top zu into blow m promns Inew form of dbe invendon, Wow the seali Am c 0 of dw alants dowrd o to a hmm d and c dpwmwwday and then ouy to a W or lower 0 0OW cap enza U may he used.
A cap with de neck is hu a bup havbg a dqo c phg or U imrt the outer M Of h Again the m 5 Of the necIL Toe cap also h an o W ling m the upper and kmer dw of the. neck to hdd d cop in 11 kmw p of dbe ouw cap may be removed by do user m and a pW tab which cau= the kiwer part of the to &m at a m fl- 1, a 1 ', Em.
Until such is renwM, the cap and neck am u-t. Other types of neck eng r may be empha.
S different ways my be employed to form the awk finishes of the pm=t invention in blow mokling opm One mew m a convm blow nold w a blow dome is formed a the with a abrupt bends m the pansco between d blow do and the neck wahn suffice. The blow dome is uit from the neck in a conventi u operation.
T In m m of the inv, the Mel the roeck h has a projecting ext which is mMed by m outward p on the blow pan so that when the blow pin Is widbdrawn, the two = d de panson the waling, m of the neck.
In still u form of dbe love, the shear Is have inward po M de blow pin has an ed Wer diameter so tha aa de com x OW thear Mel POD cuts the P by d atainst dw Calar of do blow pin.
In 9M m form of the inv, the sted is ft 4 with m o pon and d blow pin is f with an outward pro bdow d IcM of the shear Mel. When the blow pin is =, the two p the =ess In M form of the invention c neck fl" is -'g,- V de bealing =fam M aooying drr wbich we into in md km a pan of dds is zp, iuu - 0- - -fi-ts of the inventim and. W with ft , serve to explain the Pd of dbe invention:
Brief Dc of the DD Fig. 1 is a d& drm V of a mck p of a jar ia woo with the prom t invention PY brol= away to seucum Fig. 2 is an c mMul view of die neck xnx and a p of a blow do... - - - d=w Fig. 3 is a d& ekv view of a cap with which d h umd, the cap bemS py broken away m to h conzb.
Fig. 4 is an ed se of a p of Fag. 3.
Fig. 5 is a further ad fttary bom plan view of a p of the cap dwwing a top v" of the Pull lab.
Fig. 6 is a a" sectional substanWy the Em 6-6 of Fig. 5.
Fig. 7 is an m xx view dg sdwowicaUy the g of the capon the Deck.
Fig. 8 ia a view d to Fig. 7 of a in Mvicr- Fig. 9 is a view similar to Fig. 7 of a modific.
Fig. 10 is a view d to Fig. 7 of another fx.
1 Fig. 11 is a view to F4. 7 & pk dim of the cap top if pm is to do contaim.
Fig. 12 h an enlarged view of the neck stru g an akerme W area.
Fig. 13 is a view d to FqtL 9 aod 10 shming moMM wding a pod Fig. 14 h a v m' a fW eme. neck and p of the and blow pin Mming am F. 15 is a of d tD %. 14, d dbe blow pia in PO %. 16 h a wtmnadc we through a P of a blow pin and parim, with the M in "m positim.
Fig. 17 is a view s bD Fig. 16 widb c mM d.
F-i& 18 h a to F4. 17 after air has boo bbm inw dbe Ad.
is Fig. 19 is a ft&m aecdm view of a furdw mo bbw pin and p.
Fig, 20 is a tom wcW vkw d a neck f=M in a=nhmx wob 19 AM a cop W &W.
Fig. 21 is a bD Fig. 19 of no =M, bbw pin and pui= the blow pia in m positim.
%. 22 is a view bp Fig. 21 zh C blow pin in kw positim.
DC of úm Prd. mob Rderem will ww be in detail %D the pmf eakh c _liments of de inventicin, U of which am mug in the - m m 'I M.P. i _ dra V the my will be deacnibed in coojw with the prd it Will be unde that they am m in& to firait d invention to ft= P. ht n liments.
On the conuary, the tkm is inten to cover alves, and equits, which ony be included within the qght wA of the invention as defined by the N chim Neck 11 is fomied on a &in-wdW jar or odw conW= and bat a c prunary mal a 12 which is voy smooth athd is distingui by dbe a of lims huch as it is fo by air pressure or odw mcd mum during de blow w process wA is fo by C mcdd halves and thus does 1 m have a mold parting f. As d in Fig. 12, wal wfxt 12 nwy be vertical or it may be curved, as d in Fig. 2. Fu dbe prinary wrfu has atiffirnal ty, by reason of the way it is fonned. Above a 12 c k structure extends outwardly in a outward c 13 which urn in an upward bend 14. Above bend 14 h a dM. m uinward czw fi 16, the h odge of which is of g diameer than the dam of v 12. B 12 the extends &wy-omy in a slanted 17 which aminmes in a shim vertical, 18, Me being an inward dhe:Ao &"y hod 9 sho 19 bdow &M 13. V 21 c dowmy km the in= edge of Oboulder 19 mrm in a hy curved portion 22 which, n with an outward downward stret 23. An gwq.z.mtdy v a 24 (of g &am than a 13) unz in a m or lower hod inward dk dw 26. V 0 27 depends from the c of d 26, q with m outward 30 which m with an outward downward stretch 29. Me lower end of stretch 29 wIth an inward downward 31.
In &em with one feem of 9 Wow m pra a of indosp& 1d. Air is h im the p to c it to fM the mold. in this form of the invention, ffic n"d has an in the of the no of c con bmWom do= and above de neck h the mold widens out bD what h km" as a bkm dom of m n. Ile blow 6ome is ft= the neck by wellAmown m. In accont with one fmm of the pn Invention. as u'&'--uu ftom prior fhu the WOW h w at the inner edge of fhW 16, as by triniming. Severing the edge of the, neck ftom dw blow do way cause a One of the & of the prmu invention is that the edge at which the blow do h x is dw prinury waling surface 12. Ibus, directing wmdm to Fig. 2. blow dmft 33 has an outward slanted stretch 34 mer into a curved stretch 36 which has an inward slanted 37. 7he cut Um 38 is a wherein the 34 is w from the inner c of flange 16. By re^ of the almost 1800 bend 14, and the diamew changn within a reldvely vertical ffistance 16 is tin and le.
As in FIgs. 14 and 15, u way to achieve the neck structn of tm 1.! mge the cw am 38 is acb by having a ckm diam fkdn of a blow pin poddoned hy within the p and sen of w munted on the qQ odd. Dha of the blew pin am typkOy.001 inch io.004 inch m d that 5 dkmew d by d shear in doced po. After h of the neck and cmMw, the p of the p d eut line 33 h sewe: fmm the neek po bdow cut line 38 by awe of c blow pia w to the d It wM be undamod d& the tM p wed io mM mck 11 my be any le rdy hard p web m polyeth One fom of xe or cap with the ptesent kN is d in FA&L 3-7. The doom of FqpL 3-7 comprises an ind c top 42 having a peri cyh cz - P. it m 43 ftm which ex oum"y a rim 44. lie mw of rim 44 hat a depending ward m" 46 which m im v rdm cylindrical upper c dw 49. 11 end of 48 x m - into an outward &"wud d a 55. 55 is d k mgcy cyU ot 49. An in m 51 separa s 55 bm 49. Below) 49 the W bas an outward &ward d flange 52, for prad" pur rem again the a 30 of neck 11. lnx upper in= bud a 53 under the sho 19. l^w bud 54 at dw end of p 49 m under the dx 26. Who do cap is anached, the 53 and 54 prevent cW 41 fmm being rc kow Peck -11. In order to e the aw to grip cap 41. rfin 50 extend outw"y from xnember 48 n with the ouw face of W pordon 49 as bed abown in Fig. 7. Rls 50 columnar z to the closure to er verdW fo= and prevent closure c during " appha of the ck to the.
At one poniou of the ci=mfermm of lower 49 (as beg in Figs.
and 6), q dowwrardly U=e is a bW pull tab 57 having a curved conn 58 to skin 49. The interior of 49 is formed with a noch 59 where tab 57 1 49. Notch 59 forou a ve lim of we through 49. Efflaq 61 is formed on the edge of puB tab 57. The ffinge 52 is f & than dw of flange 52 in the thin area 62 0a=t tab 57.
.. 1 As a downward cam of cyh a 43 the cap 41 It formed with a do exter 66. the inner edp of which is for with a 67. The a of am 43 nab azainst primary sed surface 12. The v pimition of of top 42 can he 4 to pmW for com of 12 against the a a of r 43.
Dh an to Fla. 7 it wfil be acen that de a 12 is to sedin atabst the m 43. As bas been the m 12 h very m and hence fwm a vuy eft acid tdnst the c 43.
Wben dbe cap is applied, the 53 &M 54)ock de shioulders 19 and 26 to promt mwM of " cap and hence we u cvk. c user wWm so open the con, the user the mbnw 61 and d puU tab 57 my and pdh fumbaUy, the 49 ftm the cap portim. The user way Om grip the 55 m d in Pit. 7. is n thic bouk by a cmdle pp, &M pull Wwdly causing d inw upper bud wta 53 %D &m from 19 m dw the cap may be rw. The n-bs 50 h tbe upper portion of the cap to allow the ft v c es necessary to push d cap om d b ftm mobC the cap bD ty^ II portion of die cap a Em 5 1 cow a realm cap and way be p bWI on the, nwk after por of the content& of the ju we sed a Anwidy m m.
C4m of Fig. 7 with art stru shown in Fig. d in the present dm the very m a 12 causes a tight am Ruin the extertor of m 43 and de flaM 16 need m sed at all, wherem in the prior art the cut inner edge of the finge is a primary cal. The parimary seal m 12 hat ammum on ftm ovality as to Fig. 8 where the primary M h wht with a trim face. Bottles of the type of this invent and the an were M. 11M ovality of tk two types was Measured. The Wexpected t of these expenments was the current invention produced a significantly more circular primary seal am. Refer to Table A. for tab reafits. Me s wwT!ng on sides of the primary sed 12 is primarily contributing to the s ovality ard differeridato it from prior arL 1 4 -- 1 -g- TABLE A.
sTD ooTniE sTYLE PRESENT W4VENTON RM A Run Run C Rm D Run A %m 5 Run C P D 0.055 0.020 0.048 0.028 0.024 O-OU 0.002 0.015 0.053 0.002 0.066 0.015 0.000 0.010 0.106 0.030 0.062 0.000 0.0" 0.010 0.017 0.002 0.013 0.010 0.043 0.010 0.058 0.00 0.016 AM 0.005 0.027 0.058 0.029 0.025 0.009 0.014 0.013 0.005 0.034 0.054 0.016 0.055 0.003 0.011 0.060 0.017 0.017 0.011 0.005 0.059 0.002 0.004 0.003 0.017 0.019 0.013 0.049 0 0.007 g] 0.042 0.006 0.045 0.002 0.013 AV 0.028 Ave 0.016 If 0 mon!p.-ti of tk em am WO-Vi bdw p) or if the of dw container am CURY d D or nz bop 42 my be sub to M== cusing it to be== 01 (w^wffiy ").
Such my cam dbe b= number 43 to pivot away ftom =M pnmary sed 12, readd% in. M effect is Mu in Rg. 11.
Fig. 9 d one y for such Contrasting Fig. 9 with Fig. 7 it wM be x= dui top 42k is nbW ve. to nm 44b wO dat the conw of ip 12k with in= skirt =mber Ch is m clowly ote top 42k. In addition. rg the v spacing betwem top 42h u4 stack run 44k mduces the W arm and COúAcqwtchrC tnechanical a of the inward fb= ownponent gcn by in pressum Her= dotning of top 42k does not in pivoting of 66h out of mling conw with 12k. Fig. 11 how pre=m ap to the con (as by sqg the dde wan) my caue top 42h to bow u, plug 66b away fr= wich m 12b.
Fig. 10 shows another ry for leakage due to donfing of a 42p. A 1 i 1 i plurality of wly zM. subm Wy ry p 71 we fo at d inwm of top 42,ú and cylb m 43G. Gusticts 71 pm n 4h from P my from 1p, 12c. A d rmh cam he ad by r 7 with a continuou rW bead or d at d iatmw of do cat a of wp 42G and u 43G.
frig. 12 Mum a wb scal v 12d is cflh C F4 13 m a struct= in whU top 4% h to dr, of dm 44c.
S 12c the a of q 43c bdow ik of top 42t, D m to tk mod d in Figs. 14 and 15, fom ce a fW contalw is d. a neck =y rex d ia Pigs. 1 &M 2 of U.S. Patent No. 4,699,297, with an im flotionw U hero end-.
In Fit. 14 do pa fo the is d be a bkw pin 86 wd mel 76 aM neck 21 m m is being em med 76 has to h p 77 enwodq in a mUcal inward extermfing Moxing edso 78. Uny pin 86 bas a cyfi p 37 having an outward cabend d 88 with a 39 dxre As in Rg. 14. bbw n of c p to do of med 76 W4 nod h SI bag jug bem c. 11 of to p 3 rew the neck d in mid Paten No. 4,699,2V. at is 1 bchw 7S. Air blo bob-- 91 bu ft v 100 and i btd 102 0 wcU aS dx P om The smooth, v, cyh p 97 bas f in p ad a 12f.
11m blow pin 86 dwo =ves ftm the podtkm of Flig. 14 to de po of 15. 71c Peck murt= is 9 be edges 78 aM 88. flanp edge 96 is fo where tM edges 78. 88 hwe sheared the am aM tM dm-off 94 thcubove is dlw.
It b that edge 96 is of a dLv thm scal wfix 121.
hmm the hollow plug or h meh as that shown in Patent No. 4.699,287 c on the con neck mds a mbm 121 i of 96. Singm blow pm 86 has no putn line surtwe, 12f has no flash. S 12f is = and its dW is always the m= during tive tnolds and h a w &M with dw cap plug.
Directing anetition;o Figg. 16.18, 76g has m d in& --10- edge 101. the dW of which is qwoxy equal to dbe c dW of " upperPortion 104 of blow pin %. Mow cutting edge 101 h an un 102. Neck in 91g has a mal f pr 106 which has an h dia which h gremer than the dam of the cylindrical p 97g of bbw pin KC by a distance y Ipum than dw ddcbm. of the; wh m - 9%.
Who the nod me d. do 101 cult cc the nw P 94g of dbe, p by ream of c 101 on dw c ou dh p 104 of dw blow pin. 71m @M fa proj 106 @qtm do p ifi - m 9 c blow pin p $I& to fwa 69 x 10 0 c P! M a 12g.
As in Fig. 13. who air is blown do pin XL do p as& the shape of d neck 7bus neck 10g has p mal v 12S has an outward 1%, a bend 14L and a cut Em 38C. The diumm of dx cut lim 38g, a d g than dr, p mal surface 12g. In odw r the of the neck 10g rcm that of Fig. 15.
is Directing anentign now to Fig. 19. a diffi neck is pm by the mok pam therein Wus. Now pin be has a b U p 111 at c upper cad of which is a v cylindrical a 115 which is am bmn at tb upper end in a 6= corner 114. Above cm= 114 is a cubmy 116. Mow pin &h may he of two parm in order to h bbr. As in Fig. 19 de lower p S& is an to upper blow pin 116 and radial grooves or cb 112 we cut in the top in of 39. being cow to v or h 91b. 7bn when air is blown into the blow pin 89 air up 91g and out cha 112. 71 corner of upper blow pin 113 is On d with a cut-away 117 which with cutaway 116 to clear the h ?M of h eat 77)1 of m 7Q.
The upper end of neck insert 81h is fo with mal fg pro 106h which presses the p q a 115. 11he neck f in neck insert 11111 has external 0 and hence groom 118 for such ds are f C. Bdow the #m portion of die neck, the botde imy awim any de &M hm= the of the neck h 81h which form the am are m qmy &a forth.
After the neck has been blown, as k in Fig. 19, the blow pin Kt is raised and hme M em 114 off the p by d=fin action mgainst edge 78h. Tbus the neck has a straight u m 122 is a wm sealing =rh= _ =d by the of parting 11= aM aho dW-A by the absence k 1 1 1 1 11- of edleL, Directing don to Fig. 20. dbe mck 1 1h ft in c OM pem in Fig. 19 is Mu with a W 41h m thermn. Thm mck I 1h has m upper lip 121 below which is a vertical, w, mmlm ad 122 with an o &am p 123. On the of de no 1 Ib h m Ma, mucal, a whoe 126 helow, which are c d 127. B c 0 is an outward portion 123 which umx with an bodz do 129. the so 129 am out extending vertical ra 131. &W below the 131 i& de rem of mck 132.
Cop 41k hu a top 42k with a v outer 1315 6 from de o edge the. Upper 135 h ooro to 1 146 m here a 11 upper of 135 is con to top 42b by cm - m., L36, and h cntm L36 is a p v s 137, d in a of is f with h" thresh 139 which with thr, = 127 of an 1 lb. On &c emerim of upper 135 am &W LW which d mer in m= cq. An h fild 340 is f al dbe of the und of top 42b and 1M of upper 135. 11m pwpow of filet 141 is bD e pro mi d; m lie 1 of the neck 1 lb $D foe= seal m 122 w^"y. The M mbm of 146 is fo with n 147 which with de 131. 11w upper i corners of 147 am io dw 141 on the lower md of "W 135 at ft jun points 143. Below kmer 146 it an outward, downward 9 &W 149 which w the cxmW ot portion 132.
Dq ftm sop 42h i3 a plug or imer 66h having a =&us 67b at in lower, outer corner. When the neck Ilk h forced outwardly by M9 140, it d&Wy ges the ouW& fat of plug 66b to form a liquid dot mat.
It will be men U the cap in Fig. 20 is u-cwWmcing. Who the cap 4 1h is umcr, the juncturn 148 fracture, permitting do cop to be unsc but so long as the juromm 148 am in twt, evidmm dat the cap hu not -been o app em s.
Directing attention to Figs. 21-22 a neck id to of Fig. 20 iz produced.
The molding procm used is Sy kw as ram dowam m in dw the biow pin 84 is forced down on striker plate 156. Blow pin 8q bm an upper cyh pordon 104j, a reduced dW portion 871, below portion 104i and a o p 157 intennedim 87j and IN. A corner 88j at the junam of c p %, 1 12- 157 and M= p 104i com a c Neck insest 811 rew d of pig. 19. h all is a a;lipr 156 having, a rou 153 0 p 157 pin % Is in m pMdm 22). M between 138 and =ved p 157 is y less than the ddcknm of p 93j. As in Fig. 22. pin Sli h in positim, 0 84 m 158 d d oft p 94j. The p 9% is " bm point 159 and m p 175, th scal wfwe 12i.
It will he under dat dt m am to by 6 mkm types of and m nb Mustrated in dbe drawings and dew Howom de s and m& Wues may be mtk=9 - m will oc= to one &W in c wL In F-qpL 9, 10, 12, 13. 14. 16-18. 19-20. and 21-22 the am nn= nun ue for Parts - - - - -9, m - dhi - to dose Presly mendwed W by sub L L f. L ú. I. am j MVdy.
Me ibn d of q^ @. nt n liments of dbe pr brnudo have been p= fm p of Wus and dm They are rot irA to be catausdn or to dxe hm so dbe disclosed, and d r difica and vari are in 50A of c ing. The embodments were cM and dew in to best c% de pnn of the bv and kz pn appU, eo tweby cubic odun in de an to best iaU= dhe My and v unbodits with v n- m &Ww as are suited to 6e pu m=

Claims (18)

con". It is in that dw of de inventim he defined by the Claim appended hereto and cqtdtz. I "AT 10. rLAUM R:
1. A m of fbmi4 a con neck structure for a thin walled, blow molded c container having a uztn portion hayn a smooth intcmal primary seal surface, an u extending portion above said seal portion. a downward-ou exwKlirC 1 portion below said seal portion, and at least one external cap cn =am ng ding a split m61d confoming to the cxt of Wd container, plazing a plastic p within mid mold, blowing sir into said parison through a blow pin to expaM mid panson to fill mid mold with thin-walled plastic, forming said seal u v and free of parting lines caused by mid mold, componenu, and trimming said upward-extending portion at a circumferential trim line having a circumference no smaller th.an that of mid seal sudace, mid mold ben priovided with a blow dome am above wud neck and m which said " of bkmr4 air through mid blow pin expands a portion of mid p into Pfid blow dom a= to form a blow dome and in which said step of Cimming c cutting mid blow dome along a circle of greater diarnew than the diamder of said seal surface, mid mid being s so that said step of blowing air into Wd parison 23 forms an outward- rTdch, a bend of approximately 160 and an inward up above md bend, md inward tapered seetch being cut off from said blow do= during mid trimming step.
is
2. A method of forming a container neck structure for a thin waned, blow M c container having a g portion having a srnooth internal primary seal surface, an upward extending portion above uld seal portion, a downwaxd- outward ext=xlin$!&.low porton said scal portion, and at Imt one ext=al cap in& means comprising proving a split mold conforming to the exterior of said container, providing a blew pin having a cylindrical portIon opposite said primary -14.
seal n and having an external shearins surface larger O= mid cylindrical portion and a shear surl in mid moId above said primary seal surfhm having an internal shearing gurkm, placing a plastic parison within said mold, blowing air into mid parison through said blow pin to said parison to fill Wd mold with thin-walled plastic, forming said seal s smooth and ft= of parting Um caused by sald mold, components, and trimming said upward-cxg portion at a circmfe trim Em having a circumference no snWIer thin that of said seal surface, is said step of trimming conipnsmg moving said blow pin upward relative to said stwl, mid oxwnal and inwnal g surfaces cooperating to said parigon above mid pri=ry seal surface, mid nxgd being shaped to form in said parison above said seal surface a substantially horizontal extending outward gretch, a substantially vertical stretch above said outward stretch and an inward flange above Wd vertical stretch, said step of moving said blow pin &hearing said inward flange.
3. A method according to Clairn 2 in which the inner din of said inward ftange is &react than the inner diameter of said primary seal surfacce.
4. A m of forrning a container neck structure for a thb walled, blow molded plastic container having a smding partion having a smooth internal primary seal surface, an upward extending portion above said seal portion, a downward- outward eximIng lower p below said seal portion, and at least one external cap ging means comptaing providing a split mold conforming to the extexior of said container, said mold being formed with a ro poLnted stilmr plate, a blow pin having a first diameter portion, a w=d dia portion larger than and above said first diameter portion and a curved intennediate pordon between said first and second portions, the juncture of said intermediate portion and 1.
1 Is.
said fint diameter portion comprising a cutting edge, placing a plastic parison within said mold, blowing air into mid parison. through mid blcrw pin to expand mid p to fill mAd mold with thin-walled plastic, forming mid awl a v and free of parting lines cauged by said mold, components, and trimming said upward-ex"ding portion at a eircumfemtW trim line having a circumfmence no walle than that of mid seal surface, wdd mop of trimming ccmg ramming mid pin downward whereby mid cuttni "c shears mid parison against said striker plate, is
5. A m of f a omW= neck struct= for a thin walled, blow molded plastic con having a waling poiton having a smooth inwnal seal surface, an upward extending portion mid seal portion, a downward-outward eding lower pordon below mid seal portion, and at least one external cap c means on mid lower portion comprising prog a splIt mold confg to the exterior of said con, placing a plastic pn within mid mold, bbwtg air into said parison through a blow pin to said parism to fill said mold with Ca walled plastic, fix said xW mrface smooth &A free of parting Iines caused by sald mold components, and trimming said upward ex=ding portion at a circurnfe=tial trim line having a circumference no muger than that of said wal aurface, mid mold being provided with a blow do= area above said neck and in which said step of blowing air through said blow pin expuds a portion of mid a into Wd blow dome am to fortn a blow dome and in which said nep of trImming coaVises cutting said blow dome along a circle of greater diarieta than the ter of mid seal s, said =1d being so that said step of blowing air into said panison fonns an outwwd-upward strcwh, a bend of Woximately 160 and an inward tapued -16.
s above mid bend, mid inward ta stretch being out off frorn Wd blow dome during mid trimming step.
6. A method of forming a container neck stmeture for a blow-molded plastic container having a snag p having a s internal primary seal surface, an upward extending portion above said seal portion, a do"-oumvd extg Imw portion said seal portion, and at least one external cap engaging means on said lower portion comprising provi" a split mold conforming to the or of mid conW=, din& a blow pin having a cylindrical portion oppMte mid primary is seal % and having an external shearing surface larger than said cylindrical portkm and a shear steel in aid mold above mid primary seal surface having an internal shearing surface, placing a plastic pexiaon within said mold, blowing air into mid parison through said blow pin to ex said parison to fUl mid mold with thin walled plastic, famung mid seal m w ubd fw of pamng lum caused by said rnold components, and timming mid upward extending portion at a circumferential trim line having a circ=fw=ce no smaller than that of said scal s, bid step of bkrMq air into said com blowing air through said blow pin and in which mid step of trimming comprises moving said blow pin upward relative to mid shear stheel, said ournal and internal %hearing wt= cooperating to shw Wd parison above mid primary seal surface, said mold being shaped to form in mid pexison, above said primary 3eal surface a substantially horizontal extending ou stretch, a substantially vertical Rmtch above said outward stretch and said inward Range above mid vertical stretch, mid step of moving said blow pin shearing said inward flange.
7. A container neck mold apparatus for use with a parison of prc determined thickness comprising a blow pin comprising a fint seal forming stretch, 1 37.
Is means for redp said blow pin between a rertracted and a prcdocted position, and a split mold, means fbr moving said mold between an open and a closed poaition, said mold comg a second, seal forming stretch, the disw" between said fint seal forming stretch when mid pin is in proj posidon arid add second sml forming stretch when sad rnold is cl being less than said p thicb whereby a neck molded by said app comprises a smooth internal &W s characterized by absence of parth& lim, md mM f c=prmng an outward d third above mid second, an upward d bxh stretch above said third sumch, a fifth s to form an inward directed-flange, above mid fourth gretch, and a first sheafing edge at an inner edge of said fift stretch, sald pin 1 con a Oxering edge lner ftn and above Wd first s cooperable with said first ng edge to shear said flange as mud pm moves betwun projected and mracted. positions.
8. A container neck mold apparatus for use with a parison of pre determined thi comprising a blow pin comprising a first seal forming $, meam for recig mid blow pin bet% a retracted and a projected position, and a split mold, rmans for moving said mold between an open and a closed position, said mold comprising a sul forming stretch, the dicc be said first seal forming stretch when said pin is in projened position and said Second seal ffirming stretch when said mold is closed being l= C= said parison thicImess whereby a neck molded by said tus c=prims a smooth internal primary seal surface charac by ab=ce of parting lines, and f= and m cooperating shearing means on mid pin and said mold, revely, for 3bearing Wd parison above said seal surfbre.
9. Apparatus according to Claim 8 in which said first shearing means is larger that and above said first stretch and said second sheahng means is than and abm said stretch, said first and 9 &hearing means being substantially equal, whereby when said pin mo,," between projected and rencted positions said first -is- and wcond sharing means cooperate to trim said parison.
10. Aps ing to Claim 8 in which mid first shearing rnean =n an enlarged portion above s&d fint stretch and mid second shearing mum com a cutthn Mge above said stretch, said cutting edge being mabstand&Uy equal in &w tO s& mduged, whereby said cutting edge and mid mlarged pordons cut off said parison as mid mold moves between open and closed positiom.
ii. Apparatus according to Claim 9 wherein said first &bearing means comprises a corner at an upper edge of said first s"tch and said second shearing is means = an L exta-&on above said second stretch, said pin being fmmed with a cut away above said corner, whereby when mid pin is moved from projected to retraicted ps said inward extension ram& with said corner to shear said parision.
12. ApWMS according to Claim 11which furlw comprises blowing fluid into said cutaway against said parlson to force Wd parison against mid inward extension before movemmt of said pin from projected to retracted positions.
13. A con neck mold apparatus for use with a parison of pre determined thick comprising a blow pin comprising a first seal forming stretch, means for recipr said blow pin beN= a retracted and a projected position, and a split mold, means for nxwing said mold between an open and a closed position, said mold compriaing a second seal forming stretch, the distance between said Ant seal forming stretch when said pin is in projected on and said second seal foming stretch when mid mold is closed being less than said pansm duckness whereby a neck molded by. mid apparatus comprise a smooth internal primary seal surface characterized by abwnce of parting lines, said blow pin further comprising a cutting edge larger and above said seal forming atrxh and in which mid mold further comprises a striker plate having a rounded point comprising &U wal forming and having a lester &a than Wd cutdn edge whereby when mid blow pin is mmrned down agaire uld strike plate Wd parimn is sheared above said seal s by Wd cutting edge g said parison against said plate.
14. A neck for a blow-molded plastic omtaineT comprising a &Wing first P havring a, ir a=mk=tW primary wal Surface charactffized by the absence of rnold parting lines, an outward bond above said tint portion; an outward extending stretch joined to $aid ou bend, an upward-ou directed bend joined to mid outward is extending; stretch, an inwardly extending P=ge joined to said upward- outward bend, mid flange unrdnatn In a trim Une, Wd trim line having a circ=femce no or Q= dw of odd wal a, a woond portion Wow said seal surf;=, and at Imw one external, W engaging ffc&ns on mid portion, said flange being thin and flexible.
15. In combination, a neck fbr a blow molded plastic contalm and a cap, said cap having a top, an outer skirt depending fmm said top, a plug subsuntially verdcally depending from said cop, Wd plug being located inwud of said outer skin with an annuLv gap between said outer and said plug, and neck ng means on said outer in, mid nmk coinprising a sealing poiton having a unooth, internal primary seal surEace dww by the, absence of mold parting lines walingly cg said plug, an orutward bend above said wding portion, an outward extending stretch j to mid outnard bend, and upward stretch above said outward extending stretch, an inward bend above mid upward mretch, and an m,4mdly extending flange joined to sald in%xwd bend, Wd flange terminating In a trim line spaced outward of Wd plug, a nd portion below said seal s, and at least one ex cap engaging means on sald second portion, said cap engaging means being lowled entirely below the level of mid seal U.
s ---- 1 20-
16. In combination, a neck for a blow rnolded plastic container and a cap, said cap having a top, an outer skirt depending frorn said top and a plug substantially vertically depending frorn said top, said plug being 1 inward of said outer alcirt with an annular gap bdw= mid outer skirt and said plug, aid neck comprising a first portion having a waling portion having a w, internal wal a characterized by the absence of mold parting Unes wy engagin udd plug, an outward bend above said ftm portion, a gubgwWy horizontal outward extending stretch joined to said outward bend, an up bend joined to bodmtd outward exending a, a substantially vertical upward extending above said u bend, an inner wall of mid upward extending stretch having is a gr diameter than said primary seal surface, a trim line at an upper end of mid upward extending &, said trim line boing spaced outAird from said plug and not sealing against said plug, and an outwvm tding below said Slit portion and at least one external cap engaging means on said portion, mid external cap means being 1 enUMy below said waling portion.
17. in combination, a neck for a blow molded plastic con aM a CaP, said cap having a top. an out= skirt depending from said top and a plug substantially vertically g from said top, mid plug being located inward of said outer skin with an annular gap between mid outer akin and mid plug, said neck cornprig a fint portion having a smooth, in subsuntially vertical primary rid surface characterized by the absence of mold parting Em sealingly engaging mid plug, an outward bend above sald flist portion, in outward, substantially horizontal stect j to said outward bend, an upward bend at an outer end of mid horizontal =etch, an upward, subtiafly vertical stretch above said upward, an upward inward curved stretch at an upper end of said vertical stretch, a substantially vertical terminus at an inner end of said inward upward-inward curved stretch, sald vertical wninus having a greater diameter than said first portion, said terminus being spaced outward from said plug and not waling against said plug, 21a second outward-downward extending portion below mid seal su and at least one extemal cap engaffing means on said nd portion.
18. A neck for a blow molded plastic container in combination with a cap, the combination being substantially as herein described with reference to Figures 21 and 22 of the accompanying drawings.
18 - In combination, a neck for a blow molded plaitic oonW and a cap, said cap having a top, an outer skirt depending frorn aid top and a plug tubs=Wy vectically depending from mid top, said plug being 1 inward of said outff skirt with an annular gap be sald outer skirt and said plug.
said neck comprising a first portion having a scaling surface having a mmth, in seal surtce characterized by the abs of mold parting lines sealinly g said plug, said first portion and said seal suffice exg is subdally vertically upward to a substantially horizontal terminus, udd sealing and said first portion having a substantially coristant inner diameter, a portion extending downward below said f1M portion and at last one externW cap mgnt.ing means on sald second portion, said extenul cap m% beiq located enfady below said sicaling portion.
19. In combination, a neck for a blow molded plastic conu and a cap, said caphaving a top, an outer skirt depending from mid top and a plug substanWy vertically do.& from said top, said plug being located inward of said outer skirt with an annular M be mid outer and mid plug, said neck comprising a first ponim comprising a seCing portion having a smooth, in primary seal characterized by the absence of mold p"n lines sealingly eqaog said plug, said first portion huiher curving upward-ouly and tapering distally to a terminus spaced upward and outward of mid seal s, a wond portion extending outward-downward below said seal surface and at 1 one c cap engaging means on said second portion, said external cap means being located entirely below said sealIng portion.
20. The combination of Clairn 15 in which said neck engagement meems is located entinly below the level of said seal surface.
21. A neck for a thin-walled, blow-molded plastic container comg a scaling portion having a smooth, in circumferential primary seal a characu by the absence of mold parting lines, an upward extending portion above said seal surface, a circumferential trim line at the terminus of said upward extending portion, said trim line having a circumference no er Ow dw of mid wal surfa, a downward-outward extending body portion below mid seal a. and at MW one external cap engaging means.
22. A neck &c& to C2aim 21 in which sald int primary wa) is characterized by stretching of the plastic vicM said primary seal during blow molding so that said primary wal is circular in plan view with a minioW on from ovality.
23. A neck according to Claim21which further c an outward. firm upper stretch portion extending above said wal v, an inward-di flange extending above mid AM upper s portion and in which said flange is thin and flexible.
24. A neck awg to CWM 21A which said fluge has an inner edge formed by severing of a blow dome from said neck, %W inner edge having a greater diameter U= UW of said wal v 25. A neck according to Clain-r21inwhich said neck is formed with a plurality of external shoulders below said stretch portion, said comprising sald cap engaging mum.
26. A neck according to Claim21 in which said upward exterwiing portion compd= a substantially vertical stretch above said &=I surface and an outward-extending stretch from an upper us of mid vertical s, said trim Une comprising an intersection of said vertical stretch and said outward-extending h.
27. A neck according to CL-tim 26 which further comprises s on an exterior of said neck.
28. A neck 2 rding to Claim21 in which said upward-extending portion comprises an outward-extending stretch, extending ftom said seal surface, an upward- extending stretch at an outer terminus of said outward-extending stretch and an inwardextending stretch at an upper us of said upward-extending wet h, an inward tus of mid inward-extending comprising said trim r=.
29. A neck according to Claim28 in which said outward-extending stretch is 3ubsmdaUy horizontal.
30. A neck rdi & to Claim 28i-nwhich said upward-extg stretch is substanWy vertical.
31. A neck rding to Claim21in which said internal primary seal surface 5 i3 curved in vextical cross uxjcxu.
32. A neck according to CWM2lin which said internal primary seal wri= is substandally straight in vertical cross-section.
33. A neck according to CWM24 in which mid inward-d flange terminates in a inner edge of a diameter greater U the diameter of mid seal surfacr- 34. A neck according to Claim 24 in which said inwrected flange slants upward-inward.
35. A nwi according to Claim21 in which said g portion is curved in vertical cross W and UM extending curves and lapers outwardly15 upwardly.
36. A m of forming a container neck suwwm for a thin, blowmolded plastic container having a sealing portion having a smooth inwW seW surface, an upward extending portion above said seal portion. a downward-outward extending M portion below said seal portion, and at least ore external cap cng 20 means com waUed plastic, providing a split mold conforming to the cx of said container, placing a plastic parison within said mold, blowing air into said parison to expand said parison to flU said mold with thinforming said seal surface smooth and fr= of parting lines caused by said mold, components, and trimming said upward-extending portion at a circumferential trim line having a drcumfe=ce no er than that of said seal surface.
37. A method according to Claim 36 in which said mold is provided with a blow do= area above said neck and in which said step of blowing air through said blow pin expands a portion of said p into said blow dome area to form a blow dom and in which said on of trimming comprises cutting said blow dome along a circle of greater diameter than the diameter of said sea] surface.
3& A me aiccording; to Claim 37 in which said mold is shaped so that said step of blowing air into said parison forms an outward-upward stretch, a bend of approximately 160 and an inward 4 zed h above mid bend, said inward tapered strech being cut off from said blow do= during said trimming step.
39. A n a=rding to Claim36 which further compdm providing a blow pin having a cyhMrical portion opposite mid primary seal su and having an external shearing surface larger than said cylindrical portion and a shear steel in said mold above said primary sod m having an in &g =face, said step of blowing air into mid p comprising blowing air gh said blow pin and in which said step of trimming comprises moving said blow pin upward relative to said shear steel, said ext and in shearing a cooperafing to shear said parison above said primary seal x.
40. A me awording to Claim 39 in which said mold is shaped to form in said pafison above said primary seal surh= a substantially htal extending outward =etch, a substandaUy vertical Metch above said outward and said inward flange above said vertical s, said step of moving said blow pin shearing said inward flange.
41. A n acicording to Claim 40 in which the diameter of said inward flange is greater than the intw diameter of said primary seal wrfm.
42. A me according to Claim36 in which mid step of bg air into said p comprises providing a blow pin having a fim pin cylindrical portion and a second pin cylindrical portion of greater diameter than and positioned above said fint pin cylindrical portion and in which said step of providing a split mold comprises providing a neck mold having a mold crical portion of greater diameter than said first pin cylindrical portion and in position for blowing air opposite said firu pin cybndrical portion and a neck finish above said neck mold having a finish cylindrical porC= of substantially the same diamuw as said second pin cylindrical portion and in which said step of trimming comprises raising said pin relative to said neck mold whereby said second pin cylindrical portion and said finish cylindrical portion shear said upward-extending portion.
- 43. A method acicording to Claim 42 in which mid neck mold has an all&Ted diameter portion between said mold crical portion and said finish cylindrical portion and in which said step of blowing air into aid parison comprises blowing air Irom said blow pin opposite said enlarged diameter portion.
44. A m rdint to Claim 36 in which said step of prg a split mold comprises providing a neck insert having a cycal stal forming surface and a having an inward cutting edge of lesser diameter than said wal forming surfice and ft comprises providing a blow pin having a first pin cylindrical p smaller than said seal forming surface and a second pin cylindrical portion above said f= pin cylindrical portion and of substantially the same diam as mid cutdn edge and which comprises the step of closing saW sffit mold whereby mid cutting edge cuts said parison a mid second pin cyh po.
45. A m &=g to Claim 44. in which said plit mold is formed with an mLvgcd diameter portion between said seal forming a and mid cutting edge and in which mid step of blowing air into said parison comprises blowing air ftom said blow pin opposite sald enlarged diameter portion.
is 46. A method according to Claim36, in which said mold is f with a rounded pointed striker plate and said blow pin has a first diameter portion, a diameter portion larger than and mud f= diameter portion and a curved inenr portion between oud Am and second portions. the jwxum of said intermediate portion &M mid comprising a cutting edge and m which said step of trimming comprises ramming said pin downward whereby mid cutting edge shears mid parison against said striker plate.
47. A container neck mold apparatus for use with a parison of predetermined approximate thickness comprising a blow pin comprising a first seal forming stretch, means for redprocating said blow pin be a re and a projected position, and a split mold, means for moving said mold between an open and a closed position, said mold comprising a second seal forming stretch, the distance between said first seal forming stretch when mid pin is in projected position and said nd seal forming s when said mold is closed being alighdy less U= said parison thickness whereby a- neck molded by said appmws comprises a smooth internal primary seal surface characterized by absence of parting Unes.
48. Apparatus according to Claim 47 in which said mold fi comprises an outward directed third =etch above said second stretch, an outward directed fourth stretch above said third stretch, a fifth stretch shaped to form an inward difiange above said fourth stretch, a first shearing edge at an inner edge of said fifth stretch, said pin further comprising a secorid shearing edge larger dun and above said first stretch cooperable with said first shearing edge to &hear said flange as said pin moves between projected and retracted positions.
49. App according to Claim 4Twhich further comprises first and second coopewing taring means on said pin and said mold, respectively, for shearing said pm" above mud seal s.
50. Apparatus according to Clairn 49 in which said first &hearing mcans is larger than and above mid first stretch and said second shearing mum is larger than and above mid secondth etch, said fim and second shicaring mum being PWy equal, whereby when said pin moves between projected and rectracted positim said first and second shocaring me= cooperate to trim mid parison.
51. Apparatus according to Claim 49 in. which said first shearing mcans comprises an enlarged portion above said first h and said second shearing mcans comprises a cutting edge above said second stretch, said cutting edge being substantially equal in dim to said enlarged portion, whereby said cutting edge aM said c portions cut off said parison as said mold nwm bw open and closed positions.
5Z Apparatus according to Claim 50 wherein said first shearing means comprises a corner at an upper edge of said first stretch and said second searing mum comprises an inward extension above said s stretch, said pin being f with a cut away above said corm, whereby when said- pin is moved from projected to retracted portions said inward extension coo with said corner to shear said parison.
53. Apparatus 2 g to Claim52 which further comprises blowing fluid into said cutaway against said parison to force said parison against said inward extension before movement of said pin from projected to retracted positions.
54. Apparatus rding to Claim 47 in which said blow pin further comprises a cutting edge larger than and above said seal forming stretch and in which said mold further comprises a striker plate having a rounded point comprising said second seal forming stretch and having a]c= diameter than said cutting edge whereby when said blow pin is rammed down against said strike plate said parison is sh above said seal surface by said cutting edge shearing said parison against said 1 striker plate.
55. A cap for a container neck of the type comprising a peripherg inwrrW seal m. and an outward extending low= portion below said wal surface, and first cap engaging said cap comprising a top.
a cylindrical member extending below said top diorM to seal a mid seal surflice, an annular rim extending radially outward from sald, cylin member, an outer skirt deg from md rim having an Mw;and a lower skirt, midupper having fiM neck engaging mcan3 and being doned to fit over and engage said F= cap engaging mans, said lower skirt having second neck engaging means being daffw to fit around said neck, said M c& said neck to restrain said cap from removal from said neck without first severing mid lower skirt from an upper ffirt.
Is 56. A cap according to Claim 55 comprising an ted central portion, an upward cxg substantially cylindrical member, and a rion extending outward of said wall, said outu deg from an outer edge of said rim.
57. A cap according to Claim 56 which fi corn a plurality of radial, anlys gussets at an intersection of said indented portion and said cyU member.
58. A cap ing to Claim 56 having a thickened portion ai a j unct= of said indented portion and mid cylindrical member.
59. A cap according to Claim 55 in which said skirt is fo with a frangible line of weakness at a juncture of said upper skin and mid skirt and which further comprise mwd for severing off said lower skirt ftom mid upper skirt at said line of weakness.
60. A cap according to Claim 59 in which said severing means comprises a horizontal tear tab outward of said lower skirt, means joining one end of said tear tab to said lower skirt and a hne of ess in said lower ddrt adjacent said one end of said tear tab.
EL In combination, a neek rding to Claim21- and a cap therefor, mid cap comprising a top, 1 a cylindrical member extending below said top shaped to seal against said sea] surface, and an outer skirt fitting around said neck formed with internal neck engaging means to detachably engage said at least one external cap engaging means, 62. Ile, combination of Claim 61. in which said top comprises an ted =tral portion inward of said cylindrical member, said cap further comprising a rim extending outward of said cylindrical member, said outer skirt depending from an outer edge of said rim, said sea] surface engaging said cylindrical wall.
63. Ile combination of Claim 62 in which said cap A comprixu a plurality of radial, angularly-s gussets at an intersection of said indented =tral portion and said cylindrical member.
64. 17he combination of Claim 61 in which said first upper portion comprises a stretch extending outward from said seal surface, said neck further comprising an abrupt upward bend at an outer end of said stretch and an inward extending flange extending from said bend.
65. The combination of Claim 64 in which said flange is thin and flexible.
66. Ile combination of Claim 65 in which said flange has an in= edge formed where a blow dome is cut from said neck of gr=w diameter dun said seal surface.
67. Mw combination of Claim 61 in which said outer skirt comprises an upper portion having a downward-outward slanted stretch below said top, a substantially cylindrical s" h below said slanted stretch, and a lower skirt portion depending from the lower end of said second outward-downward slanted stret h, said outer skirt portion being formed with a frangible line of weakness at the juncture of said upper and lower skirt portion and which further comprises severing means for severing said lower skirt at said frangible line of weakness.
68. Ile combination of Claim 67 in which said severing m=s comprises a horizontal tear tab, means joining one end of said tear tab to said lower skirt and a line of weakness in said lower skirt adjacent said one end of said tear tab.
- cq - Amendments to the claims have been filed as follows is 1. A method of forming a container neck structure for a thin walled, blow- molded plastic container having a sealing portion having a smooth internal primary seal surface, an upward and outward extending portion above said seal portion, a downward-outward extending lower portion below said seal portion, and at least one external cap engaging means, the method comprising providing a split mold conforming to the exterior features of the neck structure of said container, said mold being formed with a rounded pointed striker plate and a blow pin having a first diameter portion, a second diameter portion larger than and above said first diameter portion and a curved intermediate portion between said first and second portions, the juncture of said intermediate portion and said second diameter portion comprising a cutting edge, placing a plastic parison within said mold, blowing air into said parison through said blow pin to expand said parison to fill said mold with thin-walled plastic, forming said smooth seal surface free of parting lines caused by said mold components, and trimming said upward and outward extending portion at a circumferential trim line having a circumference greater than that of said seal surface, said step of trimming comprising ramming said blow pin downward whereby said cutting edge shears said parison against said striker plate.
2. A container neck mold apparatus for use with a parison of predetermined thickness comprising a blow pin comprising a first seal forming stretch and means for reciprocating said blow pin between a retracted and a projected position, and a split mold comprising a second seal forming stretch and means for moving said mold between an open and a closed position, the distance between said first seal forming stretch when said pin is in said projected position and said second seal forming stretch when said mold is closed being less than said parison thickness whereby a neck molded by said apparatus comprises a smooth internal primary seal surface characterized by the absence of parting lines, said blow pin further comprising a cutting edge larger in diameter than and above said first seal forming stretch and said mold further comprising a striker is plate having a rounded point comprising said second seal forming stretch and extending inward to a minimum diameter less than said cutting edge diameter whereby, when said blow pin is rammed down against said striker plate, said parison is sheared above said seal surface by said cutting edge shearing said parison against said striker plate.
1 3. In combination, a neck for a blow molded plastic container and a cap, said cap having a top, an outer skirt depending from said top and a plug substantially vertically depending from said top, said plug being located inward of said outer skirt with an annular gap between said outer skirt and said plug, said neck comprising a first portion comprising a sealing portion having a smooth, internal primary seal surface characterized by the absence of mold parting lines sealingly engaging said plug, said first portion further extending upwardly and outwardly and tapering distally to a terminus spaced upward and outward of said seal surface, -3( - a second portion extending outwardly and downwardly below said seal surface, and at least one external cap engaging means on said second portion, said external cap engaging means being located entirely below said sealing portion.
4. The combination of claim 3 in which said internal primary seal surface is characterized by stretching of the plastic vicinal said primary seal during blow molding so that said primary seal surface is circular in plan view with a minimal variation from ovality.
is 5. The combination of claim 3 or claim 4 in which said neck is formed with a plurality of external shoulders below said seal surface, said shoulders comprising said cap engaging means.
6. The combination of any of claims 3 to 5 which further comprises threads on an exterior of said neck.
7. The combination of any of claims 3 to 6 in which said internal primary seal surface is substantially straight in vertical cross-section.
8. The combination of any of claims 3 to 6 in which said sealing portion is curved in vertical crosssection.
9. The combination of any of claims 3 to a wherein said outer skirt fits around said neck and is formed with internal neck engaging means to detachably engage said external cap engaging means.
10. The combination of any of claims 3 to 9 wherein said outer skirt comprises an upper skirt and a lower skirt, said upper skirt having first neck engaging means and being dimensioned to fit over and engage said external cap engaging means, and said lower skirt having second neck engaging means and being dimensioned to fit around said neck, said lower skirt engaging said neck to restrain said cap from removal from said neck without first severing said lower skirt from said upper skirt.
11. The combination of any of claims 3 to 10 wherein said cap comprises an indented central portion, an upward extending substantially cylindrical member, and a rim extending outward of said substantially cylindrical member, said outer skirt depending from an is outer edge of said rim.
12. The combination of claim 11 wherein said cap further comprises a plurality of radial, angularly spaced gussets at an intersection of said indented central portion and said substantially cylindrical member.
13. The combination of claim 11 wherein said cap has a thickened portion at a juncture of said indented central portion and said substantially cylindrical member.
4.: 6 0.: 9 4 00 9 14. The combination of any of claims 10 to 13 when dependent upon claim 10 in which said outer skirt is formed with a frangible line of weakness at a juncture of said upper skirt and said lower skirt and which further comprises means for severing said lower skirt from said upper skirt at said line of weakness.
15. The combination of claim 14 in which said - 33 severing means comprises a horizontal tear tab outward of said lower skirt, means joining one end of said tear tab to said lower skirt and a line of weakness in said lower skirt adjacent said one end of said tear tab.
16. A method of forming a container neck structure for a thin walled, blow-molded plastic container substantially as herein described with reference to Figures 21 and 22 of the accompanying drawings.
17. A container neck mold apparatus substantially as herein described with reference to Figures 21 and 22 of the accompanying drawings.
GB9910850A 1995-02-09 1996-01-16 Blow molded container neck and cap Expired - Fee Related GB2335624B (en)

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US38580895A 1995-02-09 1995-02-09
GB9716660A GB2312642B (en) 1995-02-09 1996-01-16 Blow molded container neck and cap

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GB2335624A true GB2335624A (en) 1999-09-29
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9974419B2 (en) 2014-04-23 2018-05-22 The Clorox Company Disinfecting wipes dispenser
US10039425B2 (en) 2014-04-23 2018-08-07 The Clorox Company Disinfecting wipes dispenser
EP3284693A4 (en) * 2015-04-15 2019-03-06 Tokyo Light Industry Co. Ltd. Container and cap
US10327602B2 (en) 2014-04-23 2019-06-25 The Clorox Company Disinfecting wipes dispenser

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD773930S1 (en) 2015-04-13 2016-12-13 The Clorox Company Lid with an orifice
USD771489S1 (en) 2015-04-13 2016-11-15 The Clorox Company Wipes dispenser container lid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187070A (en) * 1978-03-20 1980-02-05 Roman Machine Co. Blow molding machine
US4202455A (en) * 1977-11-16 1980-05-13 Three Sisters Ranch Enterprises Molded plastic container for use with a cap having inner and outer skirts
US4402451A (en) * 1981-07-30 1983-09-06 Boise Cascade Corporation Composite container having spin bonded end
US4496066A (en) * 1983-07-27 1985-01-29 Three Sisters Ranch Enterprises Ptrs Neck finish for plastic containers
US4699285A (en) * 1985-01-23 1987-10-13 Astraplastique & Societe Anonyme Des Eaux Minerales D'evian Closure device for bottles comprising a screwable cap
US5373955A (en) * 1993-10-12 1994-12-20 West Penn Plastics, Inc. Neck finish for a wide mouth container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202455A (en) * 1977-11-16 1980-05-13 Three Sisters Ranch Enterprises Molded plastic container for use with a cap having inner and outer skirts
US4187070A (en) * 1978-03-20 1980-02-05 Roman Machine Co. Blow molding machine
US4402451A (en) * 1981-07-30 1983-09-06 Boise Cascade Corporation Composite container having spin bonded end
US4496066A (en) * 1983-07-27 1985-01-29 Three Sisters Ranch Enterprises Ptrs Neck finish for plastic containers
US4496066B1 (en) * 1983-07-27 1998-04-14 Portola Packaging Inc Neck finish for plastic containers
US4699285A (en) * 1985-01-23 1987-10-13 Astraplastique & Societe Anonyme Des Eaux Minerales D'evian Closure device for bottles comprising a screwable cap
US5373955A (en) * 1993-10-12 1994-12-20 West Penn Plastics, Inc. Neck finish for a wide mouth container

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9974419B2 (en) 2014-04-23 2018-05-22 The Clorox Company Disinfecting wipes dispenser
US10039425B2 (en) 2014-04-23 2018-08-07 The Clorox Company Disinfecting wipes dispenser
US10327602B2 (en) 2014-04-23 2019-06-25 The Clorox Company Disinfecting wipes dispenser
US10806309B2 (en) 2014-04-23 2020-10-20 The Clorox Company Disinfecting wipes dispenser
US11439281B2 (en) 2014-04-23 2022-09-13 The Clorox Company Disinfecting wipes dispenser
EP3284693A4 (en) * 2015-04-15 2019-03-06 Tokyo Light Industry Co. Ltd. Container and cap
US10689167B2 (en) 2015-04-15 2020-06-23 Tokyo Light Industry Co., Ltd. Container and cap

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GB2335624B (en) 1999-11-10
GB9910850D0 (en) 1999-07-07

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Effective date: 20110116