US3912110A - Apparatus for closing drums - Google Patents

Apparatus for closing drums Download PDF

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Publication number
US3912110A
US3912110A US362316A US36231673A US3912110A US 3912110 A US3912110 A US 3912110A US 362316 A US362316 A US 362316A US 36231673 A US36231673 A US 36231673A US 3912110 A US3912110 A US 3912110A
Authority
US
United States
Prior art keywords
groove
drum
flange parts
body portion
bulge
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
US362316A
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English (en)
Inventor
Wilhelm Hammes
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US419241A priority Critical patent/US3910450A/en
Application granted granted Critical
Publication of US3912110A publication Critical patent/US3912110A/en
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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
    • B65D39/04—Cup-shaped plugs or like hollow flanged members
    • 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
    • B65D1/00—Containers 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
    • B65D1/12—Cans, casks, barrels, or drums

Definitions

  • Mathis 57 ABSTRACT A method and apparatus for closing the ends of plastic bung or stopper drums.
  • the apparatus comprises an end closing coupling for a bung drum composed of plastic material wherein the upper edge of the body of the drum has a circumferential bordure including an inwardly projecting groove and an inwardly bent edge.
  • An end closure for the bung drum is fashioned with a circumferential marginal bead having grooves operable to receive the inwardly projecting groove and inwardly bent edge of the drum body.
  • the method comprises engagement of the inwardly projecting groove and bent edge with corresponding portions of the end closure marginal bead when the inwardly projecting groove and bent edge are in a warm state and subsequently cooling the projecting groove and bent edge to provide a secure shrink fit closure coupling.
  • the invention relates to a bung drum which comprises a drum body made of thermoplastics by a blowmolding process and an end closure produced by way of an injection molding process.
  • Bung drums made of plastics which have become known hitherto are typically made in one piece by a blow-molding method, whereby one or two bungs or stoppers are configured in the mold parting line. These stoppers mostly are located in corresponding recesses of an end closure so as to provide a flat stacking surface. For reasons of stress distribution under a stacking load such drums, in most cases, are made with a slight bulge and at the transition to the lower and upper end closures they are given relatively large radii.
  • Such drums with their contours rounded and smooth on all sides are very difficult to manipulate as compared to steel, metal drums which are provided with drawn-in bottoms and a folded edge, as is prevalent in the case of large volumes.
  • the customary blown-in gripping troughs at the upper end of the jacket offer only an insufficient possibility for manipulating and they weaken the statics of the drum in an unjustifiable manner.
  • the bungs or stoppers which were formed during blowing by molding of the hot material cannot be produced with the necessary precision because of the shrinking process and tensions which develop during cooling off.
  • Usually crooked or oval bungs develop which require special embodiments of bungs in order to bridge the clearance which then, however, will not permit the use of a large number of existing devices for filling, closing, sealing and emptying of drums.
  • the upper end closure which may be uneven because of the same reasons and is moreover increasingly exposed to abrasion, does not permit the often used marking with the designation of the filling material and with instructions for use. Likewise, the frequently used loading by means of vacuum lift is impossible because of the uneven upper end closure.
  • drums with lids with an approximate full opening where the preform is squeezed off only at the lower end closure have a considerably better distribution of the thickness of the wall and can be produced considerably more quickly.
  • the invention is based on the objective of developing a bung drum which has on the one hand an almost even thickness of the wall corresponding to the standards known for open head drums and on the other hand permits easy and safe handling as a result of an encircling reinforced bead at the edge of a recessed upper bottom. Beyond that the requirements, such as the use of standard bungs, the possibility to take markings on the upper bottom and the use of vacuum lift during loading should also be fulfilled at the same time.
  • a bung drum made of plastics with one or more bung openings.
  • This bung drum at its upper edge of the body of the drum blow-molded out of thermo-plastic material has a groove-like bordure with an inwardly drawn groove and a likewise inwardly bent edge which engages with the corresponding grooves by way of the anticlinal bulge of the groove projecting inwardly and the inwardly directed upper edge, which grooves are disposed in the outside surface of an edge bead circling the upper end closure and which forms with said bead a perpendicular undissolvable connection.
  • the body of the bung drum according to the invention is to consist of thermoplastics, as for example the high molecular high density polyethylene, and advantageously it is produced according to the previously mentioned blow-molding process, whereby the preform is squeezed off only at the lower end closure while at the upper edge of the body of the drum the approximate full opening is maintained.
  • the upper edge of the body of the drum is supposed to have a groove-like bordure with an inwardly drawn-in groove and an inwardly bent edge.
  • the groove-like bordure constitutes one piece with the body of the drum and is molded together with the latter.
  • the bordure can have any given shape as long as it has an inwardly drawn groove and an inwardly bent edge.
  • a groove-like bordure which is developed S-shaped has proven itself particularly well.
  • the upper edge of the body of the drum is first drawn-in groove-like to a bead projecting inwardly and, after a groove-like annular recess arched outwardly to a bead, it is again bent inwardly perpendicularly to the axis of the body of the drum.
  • the groove drawn inwardly together with the bead arched outwardly and disposed above it and the drawn-in upper bottom form a sure possibility for gripping for the purpose of handling the bung drum according to the invention by hand.
  • the safety of the grip can be improved still further by outside perpendicular corrugation of the bead arched outwardly and of the inside surface of the edge of the upper bottom.
  • the bordure engages with the grooves which are disposed in the outside surface of an edge bead circling the upper bottom.
  • the upper bottom is advantageously developed as a drawn-in bottom which is provided with a marginal bead which stands perpendicularly in relation to the upper surface of the upper bottom and which constitutes one piece with the latter.
  • two encircling grooves At the perpendicular outside of this marginal bead two encircling grooves have been disposed.
  • the lateral parts limiting these grooves project from the marginal beads of the upper bottom and encircle the latter annularly.
  • the said elements disposed in the middle part of this marginal bead can be connected with perpendicular bridges in order to counteract the distortion of the marginal bead of the upper end closure.
  • the upper end closure is produced by way of an injection molding method, whereby the bungs are configured in the entry of the upper end closure for a better sealing of the connection between the bordure and the marginal bead.
  • a gasket can be inserted in at least one of the grooves circling the marginal bead of the upper end closure preferably into the upper one, which gasket is pressed by the engaging part of the bordure firmly against the inner surface of the pertinent groove.
  • the gasket preferably has a round cross section and can consist of traditional, especially elastic material. Gaskets made of foam rubber and of foamed polyurethane have proven themselves particularly well.
  • the parts of the bordure at the upper edge of the body of the drum projecting inwardly are made to engage in a warm state with the grooves of the marginal bead disposed on the upper bottom and are then cooled.
  • the body 1 of the drum 'forms one piece with the S- shaped bordure 2.
  • the bordure 2 has a bead-like bulge or arching 3 projecting inwardly and a generally radially inwardly directed edge or lip 4 which is separate from the bead-like arching 3 by an outwardly arched groove 5.
  • the groove 5 is formed by an intermediate portion of the bordure and extends generally radially outwardly.
  • the bead-like arching 3 forms on the outside an inwardly drawn groove 18 extending in a generally radial direction, which serves as an encircling gripping recess.
  • the outside of the bordure 2 is provided with a corrugation 17.
  • the drawn-in upper bottom 6 is provided on the outside surface with the marginal bead 7 with the grooves 8 and 9, which are limited by and thus defined by axially spaced lateral flange parts 10 and 11 or 12 and 13. These flange parts extend generally radially outwardly to define the generally radially inwardly projecting grooves 8 and 9.
  • a gasket 14 is inserted into the groove 9.
  • the lateral parts 11 and 12 are connected by bridges 15 at intervals. In the entry of the upper bottom 6, bungs 16 have been provided.
  • the inside surface of the marginal bead 7 is likewise provided with a corrugation 17.
  • the latter In order to establish the connection between the body 1 of the drum and the upper bottom 6, the latter is inserted into the warm bordure 2 in such a way that the inwardly projecting arching 3 and the inwardly bent edge 4 ofthe bordure 2 are caught easily by the grooves 8 and 9 of the marginal bead 7 located on the upper bottom 6.
  • the outside diameter of the lateral part 11 and of the bridges 15 is kept smaller than the outside diameter of the lateral part 12, as a result of which a safe guidance results during insertion and subsequent engagement of the upper bottom 6 with the bordure 2.
  • the latter shrinks to such a point that the projecting arching 3 is firmly pressed into the groove 8 and the inwardly bent edge 4 into the groove 9.
  • the flange parts 10 and 11 extend radially outwardly beyond the radial inner extent of the bulge 3 such that these flange parts 10, 11 firmly engage opposite, longitudinally spaced surfaces 20 and 21, respectively, of the bulge 3.
  • the flange parts 12 and 13 extend radially outwardly beyond the radial inner extent of the lip 4 such that these flange parts l2, l3 firmly engage opposite, longitudinally spaced surfaces 23 and 24, respectively, of the lip 4.
  • the flange parts 11 and 12 are, in this embodiment, both received within the groove 5.
  • the trimmed and thus completely smooth front surface of the edge 4 at the same time compresses the gasket 14 so that a safe seal of the connection is guaranteed.
  • the outwardly arched groove 5 of the bordure 2 of the drum is filled by the two lateral parts 11 and 12 of the grooves 8 and 9 which are connected for the purpose of reinforcement with a number of bridges 15 disposed at a distance from one another.
  • the L-shaped lateral part 10 of the groove 8 engages below the bead-like arching 3 of the bordure 2 projecting inwardly and causes a double anchoring of the upper bottom 6 in the bordure 2 of the body 1 of the drum.
  • the corrugation 17 on the bordure and on the inside surface of the marginal bead 7 increases the non-slipping quality and thus the possibility for handling of the drum according to the invention which is still further improved by the encircling gripping recess 18.
  • the invention makes use of the effect that blowmolded hollow bodies made of thermoplastics have after the blow-molding process a considerable linear delayed shrinkage, which moreover is fairly exactly determinable by partial control of the ejection temperature and variation of the thickness of the wall and which can amount to up to 3% of the diameter in the case of a circular cross section.
  • a drum opening of 500 mm diameter an engagement between the bordure of the drum and the upper bottom of 7.5 mm thus results at both sides, a measurement which is fully sufficient for a safe connection of the two parts. Since, in the case of the drum according to the invention, there is an absolutely even thickness of the wall in the middle and the upper area of the drum, the required consumption of material will thereby be reduced considerably.
  • a drum of the type having a plastic body portion and a separate plastic closure firmly seated within an end of the body portion, the improvement wherein:
  • said plastic body portion has an end which defines a groove-like border including: an inwardly projecting circumferential bead-like bulge,
  • said bulge defining a generally radially inwardly projecting annular gripping recess
  • said plastic closure having circumferential margin means firmly anchored within said groove-like border of said body portion to seal and resist distortion of the latter while preventing removal of said closure from said body portion, said margin means comprising:
  • a generally radially inwardly projecting annular second groove defined by axially spaced, generally radially outwardly extending flange parts, with said bulge being seated within said second groove, and said flange parts each extending radially outwardly beyond the radial inner extent of said bulge such that said flange parts firmly engage opposite, longitudinally spaced surfaces of said bulge;
  • a generally radially inwardly projecting annular third groove located outwardly of said second groove relative to a longitudinal axis of the drum, said third groove being defined by axially spaced, generally radially outwardly extending flange parts, with said lip being firmly seated in said third groove; said last-named flange parts each extending radially outwardly beyond the radial inner extent of said lip such that said last-named flange parts firmly engage opposite, longitudinally spaced surfaces of said lip;
  • said first groove of said body portion being configured to receive at least one of said flange parts.
  • Apparatus according to claim 1 wherein the generally radial inward extent of said bulge is greater than that of said edge; and the generally radial outward extent of said flange parts progressively increases from the axially innermost flange to the axially outermost flange to facilitate installation of said cover into said drum.
  • a drum as defined in claim 1 wherein said flange parts comprise:
  • said second and third flange parts being disposed axially between said first and fourth flange parts and being received in said second groove of said body portion;
  • said second flange part terminating short of said third flange part in a generally radially outward extent to facilitate installation of said closure.
  • a drum as defined in claim 1 further including a gasket disposed in at least one of said second and third grooves in sealing relationship between said cover and said body portion.
  • a drum of the type having a plastic body portion and a separate plastic closure firmly seated within an end of the body portion, the improvement wherein:
  • said plastic body portion has an end which defines a groove-like border including: an inwardly projecting circumferential bead-like bulge, said bulge defining a generally radially inwardly projecting annular gripping recess; an inwardly bent circumferential lip located outwardly of said bulge relative to a longitudinal axis of the drum, and an intermediate section extending between said bulge and said lip and defining a generally radially outwardly projecting annular first groove; and said plastic closure having circumferential margin means firmly anchored within said groove-like border of said body portion to seal and resist distortion of the latter while preventing removal of said do sure from said body portion, said margin means comprising: a generally radially inwardly projecting annular second groove defined by axially spaced, generally radially outwardly extending first and second flange parts, with said bulge being seated within said second groove, and a generally radially inwardly projecting annular third groove located outwardly of said second groove relative to a longitudinal axis
  • said second flange part terminating short of said third flange part in a generally radially outward extent to facilitate installation of said closurev

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
US362316A 1972-05-30 1973-05-21 Apparatus for closing drums Expired - Lifetime US3912110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US419241A US3910450A (en) 1972-12-21 1973-11-27 Bung drum made of plastics with one or more bung openings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2226217A DE2226217A1 (de) 1972-05-30 1972-05-30 Spundfass aus kunststoff mit einer oder mehreren spundoeffnungen

Publications (1)

Publication Number Publication Date
US3912110A true US3912110A (en) 1975-10-14

Family

ID=5846284

Family Applications (1)

Application Number Title Priority Date Filing Date
US362316A Expired - Lifetime US3912110A (en) 1972-05-30 1973-05-21 Apparatus for closing drums

Country Status (14)

Country Link
US (1) US3912110A (pt)
JP (1) JPS4961261A (pt)
AT (1) AT344070B (pt)
BE (1) BE800254A (pt)
BR (1) BR7303971D0 (pt)
CH (1) CH557264A (pt)
DE (1) DE2226217A1 (pt)
ES (1) ES217360Y (pt)
FR (1) FR2186388B1 (pt)
GB (1) GB1430983A (pt)
IT (1) IT986691B (pt)
MY (1) MY8100081A (pt)
NL (1) NL7307317A (pt)
SE (1) SE398481B (pt)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030850A (en) * 1976-08-02 1977-06-21 The United States Of America As Represented By The Secretary Of The Army Interlocked joint
US4043482A (en) * 1976-01-21 1977-08-23 In. Da. Te. Aktiengesellschaft Re-usable containers
US4182475A (en) * 1979-01-19 1980-01-08 The Mead Corporation Drum closure assembly
US4201310A (en) * 1978-02-24 1980-05-06 La Calhene Bidirectional joining device
US4245753A (en) * 1979-10-04 1981-01-20 Ellis Henry D Container for paint
US4742932A (en) * 1984-02-15 1988-05-10 Pedragosa Pedro Planas Method of manufacturing hollow sheet metal containers and containers produced thereby
US4887735A (en) * 1987-07-07 1989-12-19 Mardon Illingworth Ltd. Container
US5295603A (en) * 1990-12-01 1994-03-22 Effem Gmbh Pressure lid container
US5385294A (en) * 1989-02-22 1995-01-31 Tetra Pak Holdings S.A. Liquid package with aseptic properties and a method of producing such a package
US6045000A (en) * 1997-12-02 2000-04-04 Rauworth; Barry Lee Blow molded drum
US20040100039A1 (en) * 2001-11-26 2004-05-27 Radio Systems Corporation Battery module gasket
US20070131051A1 (en) * 2005-12-08 2007-06-14 Byrne Gregory L Orifice cover
US20090134160A1 (en) * 2004-11-12 2009-05-28 Brasilata S/A Embalagens Metalicas Closure arrangement for a can
US10781415B2 (en) 2015-05-06 2020-09-22 Innovative Distilling Technologies, Inc. Device for capping a barrel
US11345505B2 (en) 2020-08-19 2022-05-31 Innovative Distilling Technologies, Inc. Capped barrel system and methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8624533D0 (en) * 1986-10-13 1986-11-19 Lin Pac Mouldings End cap parts
DE4124434A1 (de) * 1990-10-04 1992-04-16 Transcoject Gmbh Verschlussvorrichtung fuer einen einweg-behaelter oder dergleichen behaelter
GB9105370D0 (en) * 1991-03-14 1991-05-01 Iles Waste Systems Ltd Refuse bin
DE20006095U1 (de) 2000-04-01 2000-09-14 Jokey Plastik Gummersbach GmbH, 51645 Gummersbach Kunststoffbehälter mit aufrastbarem Deckel und behälterinnenseitig angeordnetem Dichtungssteg

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674472A (en) * 1949-02-17 1954-04-06 Leer S Curacao N V Van Joint
US2872060A (en) * 1955-11-08 1959-02-03 Brune Herbert Hollow stopper for bottles, tubes or the like, or artificial material, preferably polyethylene
US3531013A (en) * 1967-10-25 1970-09-29 Mauser Kg Container closure having fastening means
US3542913A (en) * 1967-12-28 1970-11-24 Buckeye Molding Co Process for capping containers
US3771681A (en) * 1972-01-31 1973-11-13 H Mart Child-proof container cap
US3780897A (en) * 1970-02-18 1973-12-25 V Wassilieff Stoppers
US3792797A (en) * 1971-01-29 1974-02-19 Elbatainer Kunststoff Cover-closure for containers with a relatively large opening

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674472A (en) * 1949-02-17 1954-04-06 Leer S Curacao N V Van Joint
US2872060A (en) * 1955-11-08 1959-02-03 Brune Herbert Hollow stopper for bottles, tubes or the like, or artificial material, preferably polyethylene
US3531013A (en) * 1967-10-25 1970-09-29 Mauser Kg Container closure having fastening means
US3542913A (en) * 1967-12-28 1970-11-24 Buckeye Molding Co Process for capping containers
US3780897A (en) * 1970-02-18 1973-12-25 V Wassilieff Stoppers
US3792797A (en) * 1971-01-29 1974-02-19 Elbatainer Kunststoff Cover-closure for containers with a relatively large opening
US3771681A (en) * 1972-01-31 1973-11-13 H Mart Child-proof container cap

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043482A (en) * 1976-01-21 1977-08-23 In. Da. Te. Aktiengesellschaft Re-usable containers
US4030850A (en) * 1976-08-02 1977-06-21 The United States Of America As Represented By The Secretary Of The Army Interlocked joint
US4201310A (en) * 1978-02-24 1980-05-06 La Calhene Bidirectional joining device
US4182475A (en) * 1979-01-19 1980-01-08 The Mead Corporation Drum closure assembly
US4245753A (en) * 1979-10-04 1981-01-20 Ellis Henry D Container for paint
US4742932A (en) * 1984-02-15 1988-05-10 Pedragosa Pedro Planas Method of manufacturing hollow sheet metal containers and containers produced thereby
US4887735A (en) * 1987-07-07 1989-12-19 Mardon Illingworth Ltd. Container
US5385294A (en) * 1989-02-22 1995-01-31 Tetra Pak Holdings S.A. Liquid package with aseptic properties and a method of producing such a package
US5295603A (en) * 1990-12-01 1994-03-22 Effem Gmbh Pressure lid container
US6045000A (en) * 1997-12-02 2000-04-04 Rauworth; Barry Lee Blow molded drum
US20040100039A1 (en) * 2001-11-26 2004-05-27 Radio Systems Corporation Battery module gasket
US6921089B2 (en) * 2001-11-26 2005-07-26 Radio Systems Corporation Battery module gasket
US20090134160A1 (en) * 2004-11-12 2009-05-28 Brasilata S/A Embalagens Metalicas Closure arrangement for a can
US20070131051A1 (en) * 2005-12-08 2007-06-14 Byrne Gregory L Orifice cover
US7565940B2 (en) * 2005-12-08 2009-07-28 Nissan Technical Center North America, Inc. Orifice cover
US10781415B2 (en) 2015-05-06 2020-09-22 Innovative Distilling Technologies, Inc. Device for capping a barrel
US11345505B2 (en) 2020-08-19 2022-05-31 Innovative Distilling Technologies, Inc. Capped barrel system and methods

Also Published As

Publication number Publication date
GB1430983A (en) 1976-04-07
BE800254A (fr) 1973-09-17
FR2186388B1 (pt) 1979-01-12
DE2226217A1 (de) 1973-12-13
JPS4961261A (pt) 1974-06-13
NL7307317A (pt) 1973-12-04
AT344070B (de) 1978-07-10
SE398481B (sv) 1977-12-27
IT986691B (it) 1975-01-30
MY8100081A (en) 1981-12-31
ES217360Y (es) 1977-03-01
BR7303971D0 (pt) 1974-07-25
ES217360U (es) 1976-10-16
ATA452373A (de) 1977-10-15
CH557264A (de) 1974-12-31
FR2186388A1 (pt) 1974-01-11

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