US3828418A - Closure combination and method - Google Patents

Closure combination and method Download PDF

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Publication number
US3828418A
US3828418A US00304239A US30423972A US3828418A US 3828418 A US3828418 A US 3828418A US 00304239 A US00304239 A US 00304239A US 30423972 A US30423972 A US 30423972A US 3828418 A US3828418 A US 3828418A
Authority
US
United States
Prior art keywords
bushing
pitch diameter
wall
container wall
closure
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
US00304239A
Other languages
English (en)
Inventor
J Laurizio
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.)
American Flange and Manufacturing Co Inc
Original Assignee
American Flange and Manufacturing Co 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 American Flange and Manufacturing Co Inc filed Critical American Flange and Manufacturing Co Inc
Priority to US00304239A priority Critical patent/US3828418A/en
Priority to ZA738195A priority patent/ZA738195B/xx
Priority to GB4932873A priority patent/GB1444028A/en
Priority to DE19732353894 priority patent/DE2353894A1/de
Priority to CA184,382A priority patent/CA1019262A/en
Priority to IN2382/CAL/73A priority patent/IN140231B/en
Priority to BE137217A priority patent/BE806692A/xx
Priority to AU61948/73A priority patent/AU486440B2/en
Priority to AR250777A priority patent/AR203734A1/es
Priority to NL7314958A priority patent/NL7314958A/xx
Priority to JP12327673A priority patent/JPS5641339B2/ja
Priority to IT53488/73A priority patent/IT1000127B/it
Priority to ES420246A priority patent/ES420246A1/es
Priority to FR7339186A priority patent/FR2205447B1/fr
Priority to BR8669/73A priority patent/BR7308669D0/pt
Priority to EG420/73A priority patent/EG11196A/xx
Application granted granted Critical
Publication of US3828418A publication Critical patent/US3828418A/en
Priority to JP55038810A priority patent/JPS581021B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08—Threaded or like closure members secured by rotation; Bushes therefor
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y10T29/49872—Confining elastic part in socket
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49876—Assembling or joining with prestressing of part by snap fit

Definitions

  • ABSTRACT A closure bushing molded of synthetic plastic material g 29/451 g; has a cylindrical wall surrounded by a circumferential 58] g i 456 retaining shoulder and terminates at one end in a lat- /453 220739 1 erally extending octagonally shaped flange.
  • the bush- 1 ing wall is molded with an oversize pitch diameter intemal straight pipe thread.
  • the invention improves over the above mentioned prior art closure constructions in providing an all plastic closure bushing which is easily pressed into a simply formed container wall opening.
  • the low cost invention bushing meets essential strength requirements and also achieves a high degree of sealing efficiency. This is accomplished by molding the bushing wall internal thread pitch diameter to an oversize dimension and reducing that pitch diameter to a decreased dimension upon insertion of the bushing .within the container wall opening.
  • the threaded opening thus formed is sized to just the correct pitch diameter dimension to properly receive a standard externally threaded closure fitting.
  • Another object is to provide a new method of forming a threaded closurereceiving opening in a container wall.
  • a further object is to provide an internally threaded container wall opening by inserting a molded plastic closure bushing within the container wall opening and resizing the bushing by the insertion operation for reception of a threaded closure member.
  • FIG. 1 is an exploded sectional view of the closure bushing container wall combination of the invention
  • FIG. 2 is a view similar to FIG. 1 showing the bushing partially inserted within the container wall opening;
  • FIG. 3 is a view similar to FIG. 2 showing the bushing fully inserted within the container wall opening;
  • FIG. 4 is a perspective view of the invention fitted with a closure fitting dispensing tap;
  • FIG. 5 is a part sectional part elevational view of a modified form of the invention fitted with a closure P g;
  • FIG. 6 is a partial sectional view of another modification.
  • FIG. 7 is a partial sectional view of a still further modification.
  • a container wall 1 is shown as having a circular opening 2 surrounded by a downwardly and radially inwardly extending conical neck 3 terminating at its lowermost extent in a free edge 4.
  • the neck 3 extends downwardly from a depressed embossment having a horizontal annular wall 5 joined to the neck 3 and surrounded by a substantially vertical octagonal sidewall 6 extending downwardly from the container wall 1.
  • FIG. 1 Also shown in FIG. 1 is a closure bushing 10 molded of synthetic plastic material comprising a cylindrical wall 11 terminating at its upper end in a circumferential octagonally shaped flange 12. The lowermost end of the bushing 10 is closed off with an integrally formed sealing diaphragm 13. A circular score line line 14 surrounds the undersurface of the diaphragm 13 forming a reduced cross sectional thickness to facilitate separation of the diaphragm from the bushing. A circumferentially enlarged shoulder 15 is formed on the exterior surface of the bushing wall 11 provided with a lower upwardly and radially outwardly inclined conical surface 16, an outwardly facing vertical surface 17 and an upper annular horizontal surface 18.
  • the interior of the bushing wall 11 is initially molded with an internal straight pipe thread 19 having a predetermined oversize pitch diameter indicated at A, the thread pitch diameter A being greater than required for proper threaded reception of a standard closure fitting.
  • the molded bushing 10 is substantially inserted within the container wall opening 2 and, as seen in FIG. 2, as the lower inclined surface 16 of the shoulder 15 moves past the opening neck 3, the bushing wall 11 is severely radially constricted.
  • the neck free edge 4 surrounds the nozzle shoulder vertical surface 17 and the bushing thread 19, lying in the horizontal plane of the free edge 4, is reduced to an undersize pitch diameter B substantially less than the initially molded oversize pitch diameter A.
  • the inherent flexibility of the bushing cylindrical body 11 permits the necessary constriction of the bushing internal diameter causing the sealing diaphragm to flex upwardly imparting a concave configuration to the lower surface of the diaphragm 13.
  • the final increment of downward movement required to insert the bushing 10 within the container wall opening 2 causes the bushing shoulder vertical surface 17 to move past the opening neck 3 at the same time the flange 12 contacts the container embossment surface 5.
  • the bushing wall 1 l expands radially outwardly with the neck free edge 4 seating itself on the upper surface 18 of the bushing shoulder 15 forming a rigid leakproof joint.
  • the cylindrical wall 1 In the above described fully seated position of the bushing within the container wall opening, the cylindrical wall 1] partially returns to its originally molded dimension resulting in the formation of an internal thread pitch diameter C in the plane of the neck edge 4, which is just slightly greater than the constricted pitch diameter B and slightly smaller than the originally molded pitch diameter A.
  • the bushing wall is constantly held under tension to aid the sealing efficiency of the bushing container wall joint.
  • the resultant pitch diameter at the zone of sealing engagement with the container opening neck, indicated at C is just the optimum dimension required for threaded reception of a standard closure fitting.
  • a dispensing tap 20 is shown threadedly engaged within the bushing 10 which engagement has caused the diaphragm 13 to separate from the wall 11 along the weakened score line 14.
  • the relatively minor upward flexing of the diaphragm 13 in the fully seated position of the bushing adds a degree of rigidity to the score line 14 so as to aid the puncturing action of the tap 20.
  • the diaphragm could just as well be punctured or cut out with an implement in those instances where the packaging requirements call for the use of a threaded closure plug.
  • FIG. A modification of the above described invention is illustrated in FIG. wherein the opening formation in the container wall is just the reverse of that employed in the principle embodiment.
  • the container wall opening is surrounded by an upwardly drawn neck 33 extending from a raised embossment having a flat top wall 35 surrounded by an octagonal side wall 36.
  • a molded plastic bushing 40 identical to bushing 10, except for the omission of the sealing diaphragm, is provided with an internally threaded cylindrical wall 41 surrounded by an octagonal base 42 and an external retaining shoulder 45.
  • the internally threaded wall 41 undergoes the same pitch diameter changes as above described during insertion of the bushing from the undersurface of the container wall 30.
  • a standard thread size closure plug 50 is sealingly engaged with the bushing to complete the closure assembly and is seen to have an externally threaded side wall 51 terminating at its upper end in a circumferentially enlarged head 52 and an internal wrench engaging recess indicated at 53.
  • FIG. 6 a further modification of the invention is illustrated wherein a bushing 60 is inserted within a container wall opening formation similar to that shown in FIG. 1.
  • the bushing 60 is also formed with an internally threaded cylindrical wall 61 surrounded by a retaining shoulder 65 and terminating at its upper end in an octagonal flange 62.
  • a downwardly protruding sealing annulus 63 is formed on the undersurface of the flange 62 and provides additional assurance against formation of a leakage path between the bushing and the container wall.
  • FIG. 7 is directed to another modification similar to that shown in FIG. 6, the bushing being formed with an internally threaded cylindrical wall 71 surrounded by a retaining shoulder and terminating at its upper end in an octangonal flange 72.
  • the undersurface of the flange is provided with an annular recess 73 within which a resilient sealing gasket 74 is retained.
  • the method of forming an internally threaded opening in a container comprising the steps of molding from a synthetic plastic material a hollow cylindrical bushing having an oversize pitch diameter internal straight pipe thread, inserting said bushing within a container wall opening and reducing said oversize internal straight pipe thread to a decreased pitch diameter upon completion of said insertion for reception of an externally threaded closure member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
US00304239A 1972-11-06 1972-11-06 Closure combination and method Expired - Lifetime US3828418A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
US00304239A US3828418A (en) 1972-11-06 1972-11-06 Closure combination and method
ZA738195A ZA738195B (en) 1972-11-06 1973-10-23 Closure combination and method
GB4932873A GB1444028A (en) 1972-11-06 1973-10-23 Container closure assembly and methods of forming container closure assembly
DE19732353894 DE2353894A1 (de) 1972-11-06 1973-10-24 Behaelterverschluss und verfahren zu seiner herstellung
CA184,382A CA1019262A (en) 1972-11-06 1973-10-26 Closure combination and method
IN2382/CAL/73A IN140231B (sl) 1972-11-06 1973-10-27
AU61948/73A AU486440B2 (en) 1972-11-06 1973-10-29 Closure combination & method
BE137217A BE806692A (fr) 1972-11-06 1973-10-29 Combinaison et procede de fermeture
AR250777A AR203734A1 (es) 1972-11-06 1973-10-30 Un conjunto para el cierre de un recipiente y el metodo para formarlo
NL7314958A NL7314958A (sl) 1972-11-06 1973-10-31
JP12327673A JPS5641339B2 (sl) 1972-11-06 1973-11-01
IT53488/73A IT1000127B (it) 1972-11-06 1973-11-05 Combinazione e sistema di chiusura dei contenitori
ES420246A ES420246A1 (es) 1972-11-06 1973-11-05 Perfeccionamientos en una combinacion de cierre para reci- pientes.
FR7339186A FR2205447B1 (sl) 1972-11-06 1973-11-05
BR8669/73A BR7308669D0 (pt) 1972-11-06 1973-11-06 Um dispositivo e processo de fechamento de recipiente
EG420/73A EG11196A (en) 1972-11-06 1973-11-06 Method of manufacturing closing device
JP55038810A JPS581021B2 (ja) 1972-11-06 1980-03-26 容器蓋体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00304239A US3828418A (en) 1972-11-06 1972-11-06 Closure combination and method

Publications (1)

Publication Number Publication Date
US3828418A true US3828418A (en) 1974-08-13

Family

ID=23175658

Family Applications (1)

Application Number Title Priority Date Filing Date
US00304239A Expired - Lifetime US3828418A (en) 1972-11-06 1972-11-06 Closure combination and method

Country Status (15)

Country Link
US (1) US3828418A (sl)
JP (2) JPS5641339B2 (sl)
AR (1) AR203734A1 (sl)
BE (1) BE806692A (sl)
BR (1) BR7308669D0 (sl)
CA (1) CA1019262A (sl)
DE (1) DE2353894A1 (sl)
EG (1) EG11196A (sl)
ES (1) ES420246A1 (sl)
FR (1) FR2205447B1 (sl)
GB (1) GB1444028A (sl)
IN (1) IN140231B (sl)
IT (1) IT1000127B (sl)
NL (1) NL7314958A (sl)
ZA (1) ZA738195B (sl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909927A (en) * 1974-10-21 1975-10-07 Multifastener Corp Method of forming nut and panel assembly
US4015325A (en) * 1976-03-29 1977-04-05 National Can Corporation Method and apparatus for securing inserts to containers
US4773474A (en) * 1987-08-12 1988-09-27 Modine Manufacturing Company Snap on fillerneck assembly for radiators
US4845819A (en) * 1986-02-14 1989-07-11 Kubota Limited Method for coupling two plastic constructive parts used in valve, joint and pipe devices
EP0922602A3 (de) * 1997-12-12 2000-08-02 MAN Nutzfahrzeuge Aktiengesellschaft Fahrzeugbehälter mit modularem Anschlussteil
US20140072367A1 (en) * 2012-09-07 2014-03-13 Herborner Pumpenfabrik J. H. Hoffmann GmbH & Co.KG Connection system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429715A1 (fr) * 1978-06-26 1980-01-25 Inst Francais Du Petrole Nouveau dispositif d'obturation etanche utilisable notamment pour le bouchage de recipients dont le contenu doit etre maintenu en atmosphere controlee
FR2486031A1 (fr) * 1980-07-03 1982-01-08 Gallay Sa Perfectionnements aux recipients a bonde, et bonde pour lesdits recipients
US4635814A (en) * 1983-09-16 1987-01-13 Rheem Manufacturing Company Lined receptacles
JPS6093624U (ja) * 1983-12-02 1985-06-26 大石　文夫 長尺円柱体の搬送装置
JPS6120121A (ja) * 1984-07-06 1986-01-28 Wacom Co Ltd 座標入力装置
JPS63148653U (sl) * 1987-03-20 1988-09-30
US4795054A (en) * 1987-07-31 1989-01-03 Harley-Davidson, Inc. Insert for fuel tank filler cap
JPH0277821U (sl) * 1988-12-03 1990-06-14
SE508018C2 (sv) * 1993-09-03 1998-08-10 Plm Ab Sätt och anordning för framställning av en rörformig behållare med en runtomgående godsansamling samt behållare framställd genom sättet
US5799813A (en) * 1996-03-25 1998-09-01 Letica Corporation Plug closure with integral pull ring
NL2019132B1 (nl) * 2016-09-27 2018-04-06 Save Ty Can Cap B V Afsluiteenheid

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210353A (en) * 1937-07-20 1940-08-06 William A Barnes Method of manufacturing threaded parts
GB789009A (en) * 1954-12-14 1958-01-15 Lining Components Ltd Improvements in openings of containers
US2936014A (en) * 1957-07-24 1960-05-10 Robert A Kraus Resilient insert constricted to smaller diameter upon insertion in base member thereupon expanded to greater diameter to afford a friction lock
FR1334334A (fr) * 1962-05-02 1963-08-09 Bordelaise De Matieres Plastiq Obturateur-verseur pour boîtes, bidons et récipients analogues, et récipient comportant ledit obturateur-verseur
US3219230A (en) * 1962-11-15 1965-11-23 Inland Steel Co Container liner
US3424481A (en) * 1967-03-29 1969-01-28 Strecton Ind Inc Closure fitting for drums
US3468013A (en) * 1967-10-03 1969-09-23 American Flange & Mfg Method and apparatus for applying closure to containers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772017A (en) * 1953-12-21 1956-11-27 Ricke Metal Products Corp Plastic drum closure
GB943148A (en) * 1961-05-10 1963-11-27 Leer Ind Ltd Van Improvements in or relating to bung-hole constructions and method of making the same
FR1338360A (fr) * 1962-06-14 1963-09-27 Bordelaise De Matieres Plastiq Dispositif d'obturation perfectionné et son procédé de fabrication

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210353A (en) * 1937-07-20 1940-08-06 William A Barnes Method of manufacturing threaded parts
GB789009A (en) * 1954-12-14 1958-01-15 Lining Components Ltd Improvements in openings of containers
US2936014A (en) * 1957-07-24 1960-05-10 Robert A Kraus Resilient insert constricted to smaller diameter upon insertion in base member thereupon expanded to greater diameter to afford a friction lock
FR1334334A (fr) * 1962-05-02 1963-08-09 Bordelaise De Matieres Plastiq Obturateur-verseur pour boîtes, bidons et récipients analogues, et récipient comportant ledit obturateur-verseur
US3219230A (en) * 1962-11-15 1965-11-23 Inland Steel Co Container liner
US3424481A (en) * 1967-03-29 1969-01-28 Strecton Ind Inc Closure fitting for drums
US3468013A (en) * 1967-10-03 1969-09-23 American Flange & Mfg Method and apparatus for applying closure to containers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909927A (en) * 1974-10-21 1975-10-07 Multifastener Corp Method of forming nut and panel assembly
US4015325A (en) * 1976-03-29 1977-04-05 National Can Corporation Method and apparatus for securing inserts to containers
US4845819A (en) * 1986-02-14 1989-07-11 Kubota Limited Method for coupling two plastic constructive parts used in valve, joint and pipe devices
US4773474A (en) * 1987-08-12 1988-09-27 Modine Manufacturing Company Snap on fillerneck assembly for radiators
EP0922602A3 (de) * 1997-12-12 2000-08-02 MAN Nutzfahrzeuge Aktiengesellschaft Fahrzeugbehälter mit modularem Anschlussteil
US20140072367A1 (en) * 2012-09-07 2014-03-13 Herborner Pumpenfabrik J. H. Hoffmann GmbH & Co.KG Connection system
US9651074B2 (en) * 2012-09-07 2017-05-16 Herborner Pumpenfabrik Connection system
EP2706275B1 (de) * 2012-09-07 2017-05-17 Herborner Pumpentechnik GmbH & Co KG Anschlusssystem

Also Published As

Publication number Publication date
AU6194873A (en) 1975-05-01
DE2353894A1 (de) 1974-05-22
IN140231B (sl) 1976-10-02
ES420246A1 (es) 1976-03-01
IT1000127B (it) 1976-03-30
ZA738195B (en) 1974-09-25
JPS49134476A (sl) 1974-12-24
GB1444028A (en) 1976-07-28
FR2205447A1 (sl) 1974-05-31
JPS581021B2 (ja) 1983-01-08
CA1019262A (en) 1977-10-18
NL7314958A (sl) 1974-05-08
BE806692A (fr) 1974-02-15
JPS5623454A (en) 1981-03-05
JPS5641339B2 (sl) 1981-09-28
AR203734A1 (es) 1975-10-15
FR2205447B1 (sl) 1977-09-16
EG11196A (en) 1977-05-31
BR7308669D0 (pt) 1974-09-05

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