US20030132231A1 - Closure plug improvement - Google Patents

Closure plug improvement Download PDF

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Publication number
US20030132231A1
US20030132231A1 US10/047,252 US4725202A US2003132231A1 US 20030132231 A1 US20030132231 A1 US 20030132231A1 US 4725202 A US4725202 A US 4725202A US 2003132231 A1 US2003132231 A1 US 2003132231A1
Authority
US
United States
Prior art keywords
gasket
plug
sidewall
rim
thread
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.)
Abandoned
Application number
US10/047,252
Other languages
English (en)
Inventor
Cornelis Van De Klippe
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.)
Greif International Holding BV
Original Assignee
Greif International Holding BV
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 Greif International Holding BV filed Critical Greif International Holding BV
Priority to US10/047,252 priority Critical patent/US20030132231A1/en
Assigned to ROYAL PACKAGING INDUSTRIES VAN LEER N.V. reassignment ROYAL PACKAGING INDUSTRIES VAN LEER N.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VAN DE KLIPPE, CORNELIUS R.
Priority to GBGB0226866.2A priority patent/GB0226866D0/en
Priority to PL370538A priority patent/PL200367B1/pl
Priority to AU2003202017A priority patent/AU2003202017B2/en
Priority to RU2004124934/12A priority patent/RU2294870C2/ru
Priority to CNB038023105A priority patent/CN100341753C/zh
Priority to BRPI0306963-0A priority patent/BRPI0306963B1/pt
Priority to AT03700871T priority patent/ATE370078T1/de
Priority to JP2003561979A priority patent/JP4475388B2/ja
Priority to PCT/GB2003/000130 priority patent/WO2003062078A1/en
Priority to EP03700871A priority patent/EP1467922B3/en
Priority to ES03700871T priority patent/ES2292930T7/es
Priority to DE60315594T priority patent/DE60315594T3/de
Priority to KR1020047011118A priority patent/KR100968553B1/ko
Publication of US20030132231A1 publication Critical patent/US20030132231A1/en
Priority to ZA2004/05767A priority patent/ZA200405767B/en
Priority to NO20043428A priority patent/NO327273B1/no
Priority to JP2009287930A priority patent/JP2010089840A/ja
Assigned to GREIF INTERNATIONAL HOLDING B.V. reassignment GREIF INTERNATIONAL HOLDING B.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ROYAL PACKAGING INDUSTRIES VAN LEER B.V.
Priority to JP2013160905A priority patent/JP2013237492A/ja
Abandoned 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
    • B65D39/082—Bung-rings and bungs for bung-holes
    • B65D39/084—Separated bung-rings made by one element
    • 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

Definitions

  • This invention is directed to an improved container closure plug and more specifically a threaded plug having a unique gasket retaining feature.
  • drums, pails and the like with one or more dispensing and/or fill openings.
  • Such openings have an internal helical screw thread which merges into an unthreaded gasket sealing area.
  • An externally threaded closure plug carrying an annular sealing gasket is threadedly engaged within the opening. Upon tightening the plug, the plug gasket is drawn down tightly against the unthreaded gasket sealing area to provide an effective sealing of the container. While many millions of drums and other containers have been sealed in this fashion, an occasional problem arises which this invention addresses. That problem has not only to do with sealing but also with unscrewing of the plug from the container opening.
  • a closure plug is formed with a cylindrical threaded sidewall, the sidewall terminating in a circumferentially enlarged rim and having an annular gasket seat immediately under the plug rim in substantial axial alignment with the screw thread root diameter wherein a circumferential gasket retaining lip is interposed the plug gasket seat and the sidewall thread.
  • the closure plug is combined with a threaded container wall opening and has a resilient sealing gasket lying in close proximity to said internal thread whereby said gasket retaining lip prevents interengagement with said gasket and said opening thread.
  • the instant closure of the instant invention presents a long sought after solution to the above mentioned “gripping” and “looping” problems in a simple straightforward manner.
  • the plug is formed with a cylindrical threaded sidewall and a disc like bottom wall.
  • the sidewall terminates in a circumferentially enlarged rim and has an annular gasket seat immediately under the rim.
  • Interposed the plug gasket seat and the sidewall thread is a circumferential gasket retaining lip.
  • a resilient sealing gasket is stretched over the plug gasket seat occupying the vertical space between the plug rim and the retaining lip.
  • a further object is to provide a threaded closure plug having a new and improved gasket seat construction.
  • a more detailed object is to provide a plug gasket seat with structure to positively retain the plug gasket thereon during screwing and unscrewing.
  • FIG. 1 is a part elevational part sectional view of the closure plug in accordance with the invention.
  • FIG. 2 is a top plan view of the container closure combination.
  • FIG. 3 is part sectional part elevational view of the plug screwed into the container opening.
  • FIG. 4 is a view similar to FIG. 3 but with the plug in partially unthreaded position.
  • FIG. 5 is a view similar to FIG. 4 illustrating the prior art.
  • the closure plug of the invention generally indicated at numeral 1 has a disc like bottom wall 2 surrounded by a cylindrical sidewall 3 terminating in a circumferentially enlarged rim 4 .
  • the interior of the plug 1 has a series of wrench engaging lugs 5 for imparting screwing and unscrewing torque to the plug.
  • the plug sidewall 3 has a pilot portion 6 extending from the bottom wall 2 , an external helical screw thread 7 and a gasket seat 8 positioned immediately below the plug rim 4 .
  • the gasket seat 8 lies in plane axially aligned with the plug thread root diameter. This relationship is beneficial in assuring a sufficient gasket volume between the plug and the mating container opening surface to close off any leakage path.
  • the plug sidewall 3 is formed with a circumferential retaining lip 9 at the upper end of the thread 7 which extends radially outwardly in axial alignment with the thread crest.
  • the plug thread runs out and terminates at the point 10 within the lip 9 leaving a uniform upwardly facing annular surface 11 immediately above the thread termination 10 .
  • a resilient annular sealing gasket 12 having a substantially square cross sectional shape is stretched over the plug so as to hug the gasket seat 8 . The gasket thus positioned is snugly clamped between the undersurface 4 a of the plug rim 4 and the upper surface 11 of the retaining lip 9 making dislodgement of the gasket 12 from the gasket seat 8 quite unlikely.
  • the container wall opening within which the plug 1 is threadedly engaged is clearly shown in FIG. 2 and consists of a container wall 20 within which a bushing generally indicated at numeral 21 is inserted in a conventional manner.
  • the bushing 21 has a circumferentially extending polygonal base 22 , a cylindrical wall 23 extending therefrom and terminating in a radially outwardly curled bead 24 .
  • the container wall 20 overlies the polygonal base 22 in a mating embossment 25 and has an upstanding substantially cylindrical neck 26 which extends within the bushing curl 24 .
  • a bushing gasket 27 is compressed between the bushing 21 and the surrounding surfaces of the container wall 20 .
  • An internal helical screw thread 28 is formed on the bushing wall 23 extending from the base 22 to a thread run-out point 29 at the start of the bead 24 .
  • the upwardly extending unthreaded bead portion immediately above the thread run-out point 29 forms a smooth gasket sealing area 30 .
  • the sealing relationship between the plug 1 and bushing 21 in fully torqued condition as depicted in FIG. 3 shows the plug gasket 12 tightly compressed between the plug gasket seat 8 and the bushing sealing area 30 .
  • the gasket 12 is also axially restrained between the rim undersurface 4 a and the upper surface 11 of the retaining lip 9 .
  • the gasket 12 in this tightened position lies in contact with the bushing thread helical run-out and termination point 29 .
  • the continuous annular upper surface of the retaining lip maintains a constant axial spacing from the rim under surface 4 a and prevents the gasket 12 from at any point becoming ensnared in the bushing thread 28 .
  • the retaining lip 9 very clearly lifts the plug gasket 12 away from the bushing thread 28 and up off of the gasket sealing area 30 . It is due to this clean separation of the plug gasket from the surrounding bushing surfaces that the heretofore common gasket “gripping” and gasket “looping” problems have been eliminated.
  • FIG. 5 which in contrast shows a typical prior art condition wherein a prior art plug 40 is unscrewed from an internally threaded container wall opening neck 41 .
  • the plug gasket 42 sits on the gasket seat 43 formed at the root diameter of the plug thread but the plug thread 44 simply diminishes indicated by numeral 45 as it approaches the gasket seat 43 .
  • the gasket 42 has almost no axial support supplied by the diminished thread 45 .
  • the gasket becomes easily ensnared between the interengaging closure threads and is pulled off of the gasket seat creating a serious obstruction to normal closure functionality.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US10/047,252 2002-01-17 2002-01-17 Closure plug improvement Abandoned US20030132231A1 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US10/047,252 US20030132231A1 (en) 2002-01-17 2002-01-17 Closure plug improvement
GBGB0226866.2A GB0226866D0 (en) 2002-01-17 2002-11-18 Closure plug improvement
KR1020047011118A KR100968553B1 (ko) 2002-01-17 2003-01-15 폐쇄 마개
JP2003561979A JP4475388B2 (ja) 2002-01-17 2003-01-15 閉鎖プラグ
ES03700871T ES2292930T7 (es) 2002-01-17 2003-01-15 Tapon de cierre.
RU2004124934/12A RU2294870C2 (ru) 2002-01-17 2003-01-15 Затвор в виде пробки
CNB038023105A CN100341753C (zh) 2002-01-17 2003-01-15 密封塞
BRPI0306963-0A BRPI0306963B1 (pt) 2002-01-17 2003-01-15 Bujão de encerramento
AT03700871T ATE370078T1 (de) 2002-01-17 2003-01-15 Verschlussstopfen
PL370538A PL200367B1 (pl) 2002-01-17 2003-01-15 Korek zamknięcia
PCT/GB2003/000130 WO2003062078A1 (en) 2002-01-17 2003-01-15 Closure plug
EP03700871A EP1467922B3 (en) 2002-01-17 2003-01-15 Container closure plug
AU2003202017A AU2003202017B2 (en) 2002-01-17 2003-01-15 Closure plug
DE60315594T DE60315594T3 (de) 2002-01-17 2003-01-15 Behälterverschlussstopfen
ZA2004/05767A ZA200405767B (en) 2002-01-17 2004-07-20 Closure plug improvement
NO20043428A NO327273B1 (no) 2002-01-17 2004-08-17 Lukkeplugg
JP2009287930A JP2010089840A (ja) 2002-01-17 2009-12-18 閉鎖プラグ
JP2013160905A JP2013237492A (ja) 2002-01-17 2013-08-02 容器閉鎖プラグと充填口との組み合わせ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/047,252 US20030132231A1 (en) 2002-01-17 2002-01-17 Closure plug improvement

Publications (1)

Publication Number Publication Date
US20030132231A1 true US20030132231A1 (en) 2003-07-17

Family

ID=21947907

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/047,252 Abandoned US20030132231A1 (en) 2002-01-17 2002-01-17 Closure plug improvement

Country Status (5)

Country Link
US (1) US20030132231A1 (ja)
JP (2) JP2010089840A (ja)
KR (1) KR100968553B1 (ja)
GB (1) GB0226866D0 (ja)
ZA (1) ZA200405767B (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050269330A1 (en) * 2004-06-08 2005-12-08 Baughman Gary M Closure assembly for a container
US20050269329A1 (en) * 2004-06-08 2005-12-08 Baughman Gary M Closure assembly for a container
US20100018737A1 (en) * 2008-07-25 2010-01-28 Robroy Industries, Inc. Hole Plug Device
US10285522B2 (en) 2016-08-17 2019-05-14 Impel Studio LLC Travel vessel for beverages

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906429A (en) * 1955-07-05 1959-09-29 American Flange & Mfg Closure plugs
US3255916A (en) * 1964-01-27 1966-06-14 New York Air Brake Co Static seal
JPS5051257U (ja) * 1973-09-04 1975-05-19
JPS557475Y2 (ja) * 1975-12-27 1980-02-19
CA2202944A1 (en) * 1996-05-06 1997-11-06 Douglas M. Mclelland Closure plug with bonded gasket
JP2001146246A (ja) * 1999-11-19 2001-05-29 Nittetsu Drum Kk ドラム缶用樹脂製キャップシール
DE20006755U1 (de) * 2000-04-12 2000-08-03 Blau Kunststofftechnik Zweigniederlassung der Tesma Europa GmbH, 41516 Grevenbroich Einfülleinrichtung

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7520403B2 (en) 2004-06-08 2009-04-21 Rieke Corporation Closure assembly for a container
US20050269329A1 (en) * 2004-06-08 2005-12-08 Baughman Gary M Closure assembly for a container
US20060278644A1 (en) * 2004-06-08 2006-12-14 Rieke Corporation Closure assembly for a container
US7464830B2 (en) 2004-06-08 2008-12-16 Rieke Corproation Closure assembly for a container
US7513387B2 (en) 2004-06-08 2009-04-07 Rieke Corporation Closure assembly for a container
US20090090691A1 (en) * 2004-06-08 2009-04-09 Baughman Gary M Closure assembly for a container
US20050269330A1 (en) * 2004-06-08 2005-12-08 Baughman Gary M Closure assembly for a container
US20110147384A1 (en) * 2004-06-08 2011-06-23 Baughman Gary M Closure assembly for a container
US7997440B2 (en) 2004-06-08 2011-08-16 Rieke Corporation Closure assembly for a container
US8695840B2 (en) 2004-06-08 2014-04-15 Rieke Corporation Closure assembly for a container
US20100018737A1 (en) * 2008-07-25 2010-01-28 Robroy Industries, Inc. Hole Plug Device
US9578765B2 (en) * 2008-07-25 2017-02-21 Robroy Industries, Inc. Hole plug device
US10285522B2 (en) 2016-08-17 2019-05-14 Impel Studio LLC Travel vessel for beverages

Also Published As

Publication number Publication date
KR100968553B1 (ko) 2010-07-08
KR20040089113A (ko) 2004-10-20
GB0226866D0 (en) 2002-12-24
ZA200405767B (en) 2005-09-28
JP2010089840A (ja) 2010-04-22
JP2013237492A (ja) 2013-11-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ROYAL PACKAGING INDUSTRIES VAN LEER N.V., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VAN DE KLIPPE, CORNELIUS R.;REEL/FRAME:012503/0103

Effective date: 20011126

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: GREIF INTERNATIONAL HOLDING B.V.,NETHERLANDS

Free format text: CHANGE OF NAME;ASSIGNOR:ROYAL PACKAGING INDUSTRIES VAN LEER B.V.;REEL/FRAME:023948/0215

Effective date: 20030319