US20030132231A1 - Closure plug improvement - Google Patents
Closure plug improvement Download PDFInfo
- 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
Links
Images
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)
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)
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)
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 |
-
2002
- 2002-01-17 US US10/047,252 patent/US20030132231A1/en not_active Abandoned
- 2002-11-18 GB GBGB0226866.2A patent/GB0226866D0/en not_active Ceased
-
2003
- 2003-01-15 KR KR1020047011118A patent/KR100968553B1/ko not_active IP Right Cessation
-
2004
- 2004-07-20 ZA ZA2004/05767A patent/ZA200405767B/en unknown
-
2009
- 2009-12-18 JP JP2009287930A patent/JP2010089840A/ja active Pending
-
2013
- 2013-08-02 JP JP2013160905A patent/JP2013237492A/ja active Pending
Cited By (13)
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 |