EP0360844A1 - Pail lid and closure. - Google Patents

Pail lid and closure.

Info

Publication number
EP0360844A1
EP0360844A1 EP89901088A EP89901088A EP0360844A1 EP 0360844 A1 EP0360844 A1 EP 0360844A1 EP 89901088 A EP89901088 A EP 89901088A EP 89901088 A EP89901088 A EP 89901088A EP 0360844 A1 EP0360844 A1 EP 0360844A1
Authority
EP
European Patent Office
Prior art keywords
lid
pail
beads
offset
bead
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
EP89901088A
Other languages
German (de)
French (fr)
Other versions
EP0360844B1 (en
EP0360844A4 (en
Inventor
Laere Jean-Pierre Blagden Van
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.)
Rheem Australia Pty Ltd
Original Assignee
Rheem Australia Pty Ltd
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 Rheem Australia Pty Ltd filed Critical Rheem Australia Pty Ltd
Priority to AT89901088T priority Critical patent/ATE93470T1/en
Publication of EP0360844A1 publication Critical patent/EP0360844A1/en
Publication of EP0360844A4 publication Critical patent/EP0360844A4/en
Application granted granted Critical
Publication of EP0360844B1 publication Critical patent/EP0360844B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0233—Removable lids or covers without integral tamper element secured by rolling or other plastic deformation
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00277—Metal
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/0037—Flexible or deformable
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00342—Central part of the lid
    • B65D2543/00398—Reinforcing ribs in the central part of the closure
    • B65D2543/00416—Reinforcing ribs in the central part of the closure circular
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact 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
    • B65D2543/00509—Cup
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact 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
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555—Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953—Sealing means
    • B65D2543/00962—Sealing means inserted
    • B65D2543/00972—Collars or rings

Definitions

  • the invention relates to sheet steel or tinplate pails of the full open head type and lids of the same material, of the multi-lug type.
  • the invention concerns a lid and lid-to-pail interconnection providing improved resistance to leakage when subjected to internal pressure.
  • the present invention has been found particularly applicable to open head type pails of tinplate or mild steel having lug type lids of the same material in which the following particulars obtain: Pail Capacity 15 to 25 litre Pail Internal diameter
  • Thickness of pail sheet From 0.35 to 0.5 mm
  • Thickness of lid sheet From 0.43 to 0.5 mm
  • the invention consists of a lid for use in an open head pail and lid assembly, said lid being of tinplate or sheet mild steel of thickness in the range of 0.43 to 0.5 mm, the lid having a gasketted peripheral groove to be complementarily sealed to a peripheral rim of the pail by the inward and upward deformation of lugs around the peripheral of the lid around the curled rim of the pail; a generally planar central region and a drawn periphery region where the gasketted groove is offset from the plane of the central region; characterised in that the central region of the lid is provided with a plurality of upwardly and outwardly deformed beads each having a cross-sectional profile asymmetrically offset wherein the maximum upward deformation or crest of each bead is radially outwardly offset from a radial centre line of that bead and wherein the amount of offset of the central region of the lid from a plane containing the most distant extremity of the gasketted groove, that is, the depth of draw, is 5 to
  • the number of beads provided is two to four. Preferably the number of beads provided is three. Preferably the beads are circular. Preferably the beads are concentric. Preferably the beads are circumferentially continuous. Preferably the bead cross-section comprises two straight lines joined by a radius wherein the straight lines are of unequal length and the radius is not more than five times the thickness of the tinplate or steel sheet.
  • the radially more outward line intersects the planar portion of the lid at an angle in the range of about 80 to 90 degrees
  • Figure 1 shows a portion of both a cross section and a projection of an elevation of a pail lid according to the invention, before attachment to the top rim of a pail.
  • Figure 2 shows a portion of an elevation of a pail lid and lid-to-pail interconnection according to the invention.
  • the circular pail lid (10) comprises twenty lugs (11) around the periphery of the lid, downwardly depending from the bottom edge (12) of a downwardly depending peripheral skirt (13) .
  • a gasket groove (14) is defined by a circumferentially extending radiused groove which in use occupies to a suitable depth by a cellular compressible gasket (not shown) for sealing against a complementary curled rim of a pail (see Figure 2) .
  • the plane (14) defines the axially uppermost portion of the lid.
  • a downwardly depending draw (16) of the lid extends further downwardly than the skirt (12) , before blending via a radius (17) into a central lid portion (18) bounded radially outwardly by radius (17) .
  • Central lid portion (18) is generally planar except that three beads (19) , (20) , (21) are formed so as to project upwardly from the flat central portion (18) .
  • Each bead is preferably identical in cross-section and, described with reference to bead (19) , comprises in cross-section an approximately vertical straight line (22) , a second straight line (24) , both lines being joined by a radius (23) which is preferably in the range three to five times the metal thickness (the metal thickness being 0.43 to 0.5 mm preferably given that the outside diameter of the lid is approximately 300mm) .
  • Line (24) is inclined at an angle (25) to the horizontal.
  • a preferable value of angle (25) has been found to be in the range 20 to 30 degrees
  • the best results are achieved with three beads as illustrated although it is believed that two may be found sufficient and any more than four would consume unnecessarily large amounts of the sheet metal lid, requiring a larger blank diameter to ensure adequacy of important dimensions such as the length of the outer skirt (12) and lugs (11) .
  • the radius (23) defines a crest of bead (19) and it is preferred if the height of the crest measured from plane (18) and the depth of draw from plane (14) to plane (18) are in the ratio of 4.5 to 18.5 or about 1 to 4 or 25%. It is preferred if the depth of draw is at least 5% of the outside diameter of the lid and is optimally in the range 5 to 7%.
  • the pail body (32) with its curl (33) is closed by a lug-cover lid having a central portion (18) having a deep-drawn wall (16) rolled over to a rim (36) in which is positioned a gasket (37) .
  • the rim extends downwardly in lugs (11) which are adapted to be clenched under the curl of the pail to secure the lid on the pail as will now be described. Before clenching the lugs (11) extend downwardly from the rim (36) such that the lid may be easily placed in firmly fitting relationship with the pail.
  • the clenching of the lugs inwardly and upwardly to form the re-entrant angle (40) is beneficial in retaining the cover in place on the pail during hydraulic pressure testing. It is a feature of the invention that the curl formed by rotation of the rim of the pail through more than 450° enables a much higher clenching force to be applied to the lug without collapsing the curl on the pail, and therefore allows the re-entrant clenching of the lug up and between the curl and the adjacent cylindrical wall of the pail.
  • the clenching force applied by the lid further forms the curl such that an exceptionally effective combination of pail lid with pail-to-lid interconnection results.
  • the beads are circular and concentric.
  • suitable diameters for the crests of beads (19), (20) and (21) are approximately 270, 240 and 216 mm respectively and in any event it is preferred if the beads lie within the radially outermost 60% of the diameter of the central portion of the lid.
  • a lid of outside diameter 300 mm when fitted to an open head pail using the method of attachment shown in Figure 2 and where the lid is made of tinplate 0.5 mm thick and the pail is made of tinplate 0.38 mm thick in both the body and bottom, then the pail is capable of withstanding an internal pressure of 100 kPa for at least five minutes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Gasket Seals (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Centrifugal Separators (AREA)

Abstract

A steel or tinplate lid (10) and lid interconnection to a full open head steel or tinplate pail (32) providing improved resistance to leakage when subjected to severe internal pressure and in which the lid (10) has a generally planar central portion (18), lugs (11) around the periphery, a peripheral gasket groove (14) containing a cellular, compressible gasket (37); in which the central portion (18) is provided with from two to four upwardly and outwardly deformed beads (19) each having a cross sectional profile asymmetrically offset from a radial centre line of that bead and each bead having an uppermost crest (23) upwardly offset from the central portion (18) of the lid by 23 to 27 % of the distance from the central portion (18) to the gasket groove (14).

Description

PAIL LID AND CLOSURE
BACKGROUND
The invention relates to sheet steel or tinplate pails of the full open head type and lids of the same material, of the multi-lug type. In particular the invention concerns a lid and lid-to-pail interconnection providing improved resistance to leakage when subjected to internal pressure.
The need has been specified in certain countries to require full open head pails with lids used for the transport of dangerous goods contents to be capable of withstanding internally applied hydraulic pressure (in a test simulating abnormal service conditions) , the pail and lid interconnection being regarded as satisfactory for the carriage of dangerous liquiform goods if it is capable of withstanding a pressure of 100 kPa for five minutes, without leaking. Such a test is specified by certain national regulations for the packaging and transport of dangerous goods by road, rail or sea. At such test pressures the pail ends permanently distort to a very considerable degree.
Such tests have so far been found very difficult to pass using pails of the full open head type, unless made of steel so thick by comparison with previously commercially accepted standards as to be now unacceptable.
The present invention has been found particularly applicable to open head type pails of tinplate or mild steel having lug type lids of the same material in which the following particulars obtain: Pail Capacity 15 to 25 litre Pail Internal diameter
(nominal) 286mm
Pail height Dependent on capacity Pail outside diameter
(approx) 300mm
Thickness of pail sheet From 0.35 to 0.5 mm
Thickness of lid sheet From 0.43 to 0.5 mm
Accordingly it is an object of the present invention to provide a pail lid for a pail-to-lid interconnection when assembled to withstand the above described pressure test, the dimensions of the pail and lid components being generally within the parameters as set out above.
SUMMARY
The invention consists of a lid for use in an open head pail and lid assembly, said lid being of tinplate or sheet mild steel of thickness in the range of 0.43 to 0.5 mm, the lid having a gasketted peripheral groove to be complementarily sealed to a peripheral rim of the pail by the inward and upward deformation of lugs around the peripheral of the lid around the curled rim of the pail; a generally planar central region and a drawn periphery region where the gasketted groove is offset from the plane of the central region; characterised in that the central region of the lid is provided with a plurality of upwardly and outwardly deformed beads each having a cross-sectional profile asymmetrically offset wherein the maximum upward deformation or crest of each bead is radially outwardly offset from a radial centre line of that bead and wherein the amount of offset of the central region of the lid from a plane containing the most distant extremity of the gasketted groove, that is, the depth of draw, is 5 to 7% of the outside diameter of the lid and the amount of offset of the planar central region of the lid from the plane containing the crest of the beads is approximately 23 to 27% of the depth of draw.
Preferably the number of beads provided is two to four. Preferably the number of beads provided is three. Preferably the beads are circular. Preferably the beads are concentric. Preferably the beads are circumferentially continuous. Preferably the bead cross-section comprises two straight lines joined by a radius wherein the straight lines are of unequal length and the radius is not more than five times the thickness of the tinplate or steel sheet.
Preferably, of the two straight lines comprising the bead cross-section, the radially more outward line intersects the planar portion of the lid at an angle in the range of about 80 to 90 degrees
DESCRIPTION OF THE DRAWINGS
Notwithstanding all the forms that fall within the scope of the invention, one particularly preferred form is now described with reference to the accompanying illustrations in which:
Figure 1 shows a portion of both a cross section and a projection of an elevation of a pail lid according to the invention, before attachment to the top rim of a pail.
Figure 2 shows a portion of an elevation of a pail lid and lid-to-pail interconnection according to the invention. DETAILED DESCRIPTION
Referring to Figure 1, the circular pail lid (10) comprises twenty lugs (11) around the periphery of the lid, downwardly depending from the bottom edge (12) of a downwardly depending peripheral skirt (13) . A gasket groove (14) is defined by a circumferentially extending radiused groove which in use occupies to a suitable depth by a cellular compressible gasket (not shown) for sealing against a complementary curled rim of a pail (see Figure 2) . The plane (14) defines the axially uppermost portion of the lid. Radially inwardly of the highest point (15) a downwardly depending draw (16) of the lid extends further downwardly than the skirt (12) , before blending via a radius (17) into a central lid portion (18) bounded radially outwardly by radius (17) .
Central lid portion (18) is generally planar except that three beads (19) , (20) , (21) are formed so as to project upwardly from the flat central portion (18) .
Each bead is preferably identical in cross-section and, described with reference to bead (19) , comprises in cross-section an approximately vertical straight line (22) , a second straight line (24) , both lines being joined by a radius (23) which is preferably in the range three to five times the metal thickness (the metal thickness being 0.43 to 0.5 mm preferably given that the outside diameter of the lid is approximately 300mm) .
Line (24) is inclined at an angle (25) to the horizontal. A preferable value of angle (25) has been found to be in the range 20 to 30 degrees
Preferably the best results are achieved with three beads as illustrated although it is believed that two may be found sufficient and any more than four would consume unnecessarily large amounts of the sheet metal lid, requiring a larger blank diameter to ensure adequacy of important dimensions such as the length of the outer skirt (12) and lugs (11) .
The radius (23) defines a crest of bead (19) and it is preferred if the height of the crest measured from plane (18) and the depth of draw from plane (14) to plane (18) are in the ratio of 4.5 to 18.5 or about 1 to 4 or 25%. It is preferred if the depth of draw is at least 5% of the outside diameter of the lid and is optimally in the range 5 to 7%.
With reference to Figure 2, the pail body (32) with its curl (33) is closed by a lug-cover lid having a central portion (18) having a deep-drawn wall (16) rolled over to a rim (36) in which is positioned a gasket (37) . The rim extends downwardly in lugs (11) which are adapted to be clenched under the curl of the pail to secure the lid on the pail as will now be described. Before clenching the lugs (11) extend downwardly from the rim (36) such that the lid may be easily placed in firmly fitting relationship with the pail. Once in position a clenching machine is engaged with the lugs such that each jaw of the tool head forces the lugs inwardly and upwardly with a force finally applied in the direction of arrow (39) so that the lugs are deformed inwardly against the wall of the pail (32) and tucked upwardly so as to form a re-entrant angle (40) between the curl (33) and the peripheral wall (32) of the pail. During the clenching operation the gasket (37) which was previously positioned within the rim (36) on top of the curl is compressed and tends to be forced outwardly and downwardly towards position (41) . This positioning of the gasket material has been found to be particularly beneficial in maintaining the integrity of the seal between the lid and the pail during drop and other performance testing. It has also been found that the clenching of the lugs inwardly and upwardly to form the re-entrant angle (40) is beneficial in retaining the cover in place on the pail during hydraulic pressure testing. It is a feature of the invention that the curl formed by rotation of the rim of the pail through more than 450° enables a much higher clenching force to be applied to the lug without collapsing the curl on the pail, and therefore allows the re-entrant clenching of the lug up and between the curl and the adjacent cylindrical wall of the pail. The clenching force applied by the lid further forms the curl such that an exceptionally effective combination of pail lid with pail-to-lid interconnection results.
It will be noted after crimping of the lug-cover lid in place, that the final tightening and forming of the curl to the configuration shown in Figure 2 may be achieved during crimping of the lug-cover lid in place on the pail. In this case a clenching machine performs the final stage in the formation of a tightly rolled curl of the configuration shown in Figure 2.
It is convenient and preferable for reasons of tool-making, ease of manufacture and quality control of mass-produced lids if the beads are circular and concentric. For a lid of outside diameter approximately 300 mm suitable diameters for the crests of beads (19), (20) and (21) are approximately 270, 240 and 216 mm respectively and in any event it is preferred if the beads lie within the radially outermost 60% of the diameter of the central portion of the lid. As an example of the use of the invention it has been found that a lid of outside diameter 300 mm when fitted to an open head pail, using the method of attachment shown in Figure 2 and where the lid is made of tinplate 0.5 mm thick and the pail is made of tinplate 0.38 mm thick in both the body and bottom, then the pail is capable of withstanding an internal pressure of 100 kPa for at least five minutes.

Claims

1. A lid for use in an open head pail and lid assembly, said lid being of tinplate or sheet mild steel of thickness in the range of 0.43 to 0.5 mm, the lid having a gasketted peripheral groove to be complementarily sealed to a peripheral rim of the pail by the inward and upward deformation of lugs around the periphery of the lid around the curled rim of the pail; a generally planar central region and a drawn peripheral region where the gasketted groove is offset from the plane of the central region; characterised in that the central region of the lid is provided with a plurality of upwardly and outwardly deformed beads each having a cross sectional profile asymmetrically offset wherein the maximum upward deformation or crest of each bead is radially outwardly offset from a radial centre line of that bead and wherein the amount of offset of the central region of the lid from a plane containing the most distant extremity of the gasketted groove, that is, the depth of draw, is 5 to 7% of the outside diameter of the lid and the amount of offset of the planar central region of the lid from the plane containing the crest of the beads is approximately 23 to 27% of the depth of draw.
2. A lid as claimed in claim 1 wherein the number of beads is two to four.
3. A lid as claimed in claim 2 wherein the number of beads is three.
4. A lid as claimed in any one of the previous claims in which the beads are circular.
5. A lid as claimed in any one of the previous claims in which the beads are concentric.
6. A lid as claimed in any one of the previous claims in which the beads are circumferentially continuous.
7. A lid as claimed in any one of the previous claims in which the bead cross-section comprises two straight lines joined by a radius wherein the straight lines are of unequal length and the radius is not more than five times the thickness of the metal sheet.
8. A lid as claimed in claim 7 in which the two straight lines comprising the bead cross-section consist a radially more outward line intersecting the planar portion of the lid at an angle in the range of about 80 to 90 degrees.
9. A pail-to-lid interconnection in which a lid as claimed in any one of the previous claims is clenched to a complementary rim of a tinplate pail in which the rim comprises a curl the tip of which has been formed by a rotation through an angle of at least 450° and in which an inward and upward clenching of the lugs results in the curl configuration substantially as shown with reference to the accompanying Figure .
EP89901088A 1987-12-24 1988-12-23 Pail lid and closure Expired - Lifetime EP0360844B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89901088T ATE93470T1 (en) 1987-12-24 1988-12-23 LID AND LOCK FOR A BUCKET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI608487 1987-12-24
AU6084/87 1987-12-24

Publications (3)

Publication Number Publication Date
EP0360844A1 true EP0360844A1 (en) 1990-04-04
EP0360844A4 EP0360844A4 (en) 1991-03-20
EP0360844B1 EP0360844B1 (en) 1993-08-25

Family

ID=3772681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89901088A Expired - Lifetime EP0360844B1 (en) 1987-12-24 1988-12-23 Pail lid and closure

Country Status (6)

Country Link
EP (1) EP0360844B1 (en)
JP (1) JPH03503626A (en)
AT (1) ATE93470T1 (en)
AU (1) AU642849B2 (en)
DE (1) DE3883535T2 (en)
WO (1) WO1989005758A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9109820D0 (en) * 1991-05-07 1991-06-26 Courtaulds Coatings Holdings Lid for a pail
JP6499439B2 (en) * 2014-12-24 2019-04-10 株式会社長尾製缶所 Rug top for open pail can
CN106800136A (en) * 2017-02-28 2017-06-06 苏州华源控股股份有限公司 A kind of false proof gaily decorated basket lid
JP2018062392A (en) * 2018-01-24 2018-04-19 株式会社長尾製缶所 Metal open pail can

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US2205685A (en) * 1936-09-21 1940-06-25 Wheeling Steel Corp Container closure
GB550109A (en) * 1941-06-19 1942-12-23 Easycantop Ltd Improvements in or relating to cans or like containers
FR1395914A (en) * 1964-04-01 1965-04-16 Travail Mecanique De La Tole S New method of packaging practically incompressible products and metallic wrapping applied for this purpose
FR2211379A1 (en) * 1972-12-21 1974-07-19 Cebal
GB2119343A (en) * 1982-03-26 1983-11-16 Schmalbach Lubeca Sheet-metal containers having press-in covers

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Title
See also references of WO8905758A1 *

Also Published As

Publication number Publication date
WO1989005758A1 (en) 1989-06-29
JPH03503626A (en) 1991-08-15
AU2903689A (en) 1989-07-19
AU642849B2 (en) 1993-11-04
DE3883535T2 (en) 1994-01-20
EP0360844B1 (en) 1993-08-25
DE3883535D1 (en) 1993-09-30
ATE93470T1 (en) 1993-09-15
EP0360844A4 (en) 1991-03-20

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