US3424340A - Shipping containers and plastic lids therefor - Google Patents

Shipping containers and plastic lids therefor Download PDF

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Publication number
US3424340A
US3424340A US703144A US3424340DA US3424340A US 3424340 A US3424340 A US 3424340A US 703144 A US703144 A US 703144A US 3424340D A US3424340D A US 3424340DA US 3424340 A US3424340 A US 3424340A
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United States
Prior art keywords
lid
skirt
container
sidewall
rib
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
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US703144A
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English (en)
Inventor
Heinz Rocher
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Inland Steel Co
Original Assignee
Inland Steel Co
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Filing date
Publication date
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Publication of US3424340A publication Critical patent/US3424340A/en
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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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
    • 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
    • B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/021—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the inside, or a part turned to the inside, of the mouth
    • 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
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved 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
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00296—Plastic
    • 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
    • B65D2543/005—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 both cup and skirt
    • 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
    • B65D2543/0049—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
    • B65D2543/00518—Skirt
    • 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
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00611—Profiles
    • B65D2543/0062—Groove or hollow bead
    • 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
    • B65D2543/00592—Snapping means
    • B65D2543/00601—Snapping means on the container
    • B65D2543/00675—Periphery concerned
    • B65D2543/00685—Totality
    • 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
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00731—Groove or hollow bead
    • 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
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/205—Ring

Definitions

  • the present invention relates to containers and, more particularly, to lids for open-head containers of the type commonly used in transporting and/or storing liquid, semi-liquid, pulverized, granular or other substances.
  • the invention is concerned with an improved lid made of self-supporting plastic material characterized by its resistance to both deformation forces and aggressive substances, and to containers employing such lids, wherein the container and the lid are constructed so as to mutually cooperate with one another to provide an effective liquid-tight dust-tight closure assembly under various conditions of use.
  • Such containers generally have a sidewall formed of a suitable thermoplastic material or of fibrous material.
  • the sidewall may be formed of metal or fiber board and then internally coated or lined with a thermoplastic material.
  • a further object of the invention is the provision of containers and self-supporting lids of the foregoing type which are liquid-tight and dust-tight both when completely assembled in tightly closed condition for shipment and when only partially assembledfor example, when the conventional clamping ring used to rigidly afiix the lid to the container sidewall is removed.
  • a related object of the invention is the provision of a plastic lid and open-head container construction wherein the lid is of unitary construction and wherein the lid effectively cooperates with the sidewall to form two distinct and circumferentially continuous sealing regions.
  • FIGURE 1 is a side elevation of an exemplary openhead container here having its open end closed by a removable closure assembly in accordance with the present invention
  • FIG. 2 is an enlarged fragmentary cross-sectional view of a container and plastic lid embodying the features of the present invention, the container being of the type shown in FIG. 1 but here having the conventional expansible and contractable split clamping ring removed, the components being shown in the loosely closed position;
  • FIG. 3 is a cross-sectional view similar to FIG. 2, but here showing the clamping ring in position with the components in the tightly closed position;
  • FIGS. 4 and 5 are cross-sectional views similar to FIG. 3 but depicting modified forms of plastic lids also embodying the features of the present invention.
  • FIG. 6 is a cross-sectional view similar to FIG. 2, but depicting yet another modified form of plastic lid embodying the present invention.
  • FIG. 1 a container, generally indicated at 10, having a sidewall 11 and upper and lower closure assemblies generally indicated at 12 and 14 respectively.
  • the material from which the sidewall 11 is made is not critical to the present invention, it being understood that the sidewall 11 will either be formed of material that is inert with respect to the substances to be stored in the container, or, alternatively, it will be internally coated, lined or otherwise treated so as to impart such inert characteristic to the sidewall.
  • the sidewall 11 may be formed of a thermoplastic material, a fibrous material, or even of suitable sheet metal.
  • the sidewall may be coated with a thermoplastic material (not shown) or otherwise treated to render it impervious and inert.
  • a separate plastic bag-like liner (not shown) may be employed in a conventional manner.
  • the lower closure assembly 14 For the purpose of permanently closing the lower end of the container 10, the lower closure assembly 14 includes a bottom member (not shown) which is rigidly and permanently aflixed to the sidewall 11 by means of a conventional metallic reinforcing ring 15. The latter is deformed inwardly as indicated at 16 to form an internal rib (not shown) against which the bottom member is seated, with portions of the bottom member, the sidewall 11 and the ring 15 being curled together to form a bottom chime 18.
  • the upper closure assembly 12 is both removable and replaceable.
  • the upper end of the sidewall 11 is reinforced by means of a suitable metallic reinforcing ring 19 which, as best illustrated in FIGS. 2 and 3, is curled about the upper extremity 20 of the sidewall, the ring 19 and sidewall being formed with an external circumferential groove 21 defining a complementary internal circumferential rib 22 adjacent the upper extremity 20 of the container 110.
  • a lid not shown in FIG. 1, but indicated generally at 24 in FIGS.
  • the removable lid 24 or cover is of unitary construction and is formed of self-supporting plastic material, the lid having a first annular skirt which is deformable into the groove 21 in the sidewall 11 for fixedly retaining the lid in place during transportation, and a second annular skirt which is complementary to and cooperates with the internal rib 22 to form a liquidtight and dust-tight seal.
  • the plastic lid or cover 24 (FIGS. 2 and 3) is formed of thermoplastic material such as polyethylene.
  • the lid includes a generally flat central portion 26 surrounded by a channelshaped rim 28.
  • the outer wall of the rim 2 8 defines the outermost annular skirt 29, while the inner rim wall defines a concentric inner annular skirt 30.
  • the second or inner skirt 30 is dimensioned so that when the lid 24 is placed on the container extremity 20, the lower-most or free terminal edge 31 of the skirt extends below the rib 22, there being an intermediate skirt portion 32 which is shaped complementary to the rib.
  • the arrangement is such that the complementary portion 32 of the inner skirt 30 has a maximum external diameter D1 (FIG. 2) which is somewhat greater than the minimum internal diameter D2 of the rib 22.
  • the natural resiliency of the skirt 30 is such that the region of largest diameter D1 in the skirt portion 32 is deformed radially inwardly, thereby permitting the skirt 30 to snap over the rib 22.
  • the skirt 30 then resumes its normal unfiexed state and the rib 22 and complementary skirt portion 32 thereafter cooperate (a) to tightly engage one another so as to retain the lid 24 firmly yet removably in place and (b) to establish a first circumferential liquid tight and dust-tight seal.
  • Such seal being in the region of the rib 22, effectively serves to prevent contact between the contents of the container 10 (FIG.
  • the free edge 31 of the inner skirt 30 flares inwardly, having an outside diameter D3 less than the internal diameter D2 of the rib. This enables the inwardly flaring portion of the skirt to guide the lid 24 into position during assembly.
  • the lid 24 may be firmly clamped in place by means of the conventional split clamping ring 25 shown in FIGS. 1 and 3.
  • the outer annular skirt 29 includes a depending portion 34 which extends beyond the upper edge of the groove 21.
  • the free edge of the extending portion 34 of the skirt 29 may be formed with a thickened bead 35.
  • bead 35 provides further insurance against the lid 24 slipping from beneath the clamping ring 25 and off the container 10.
  • the substantially flat central portion 26 of the lid is connected to the inner skirt 30 generally in the region of the portion 32 of the latter which is complementary to the rib 22, as best indicated at 36.
  • This construction is particularly advantageous in that it tends both to rigidify the inner skirt 30 and to press the latter firmly into sealing engagement with the rib 22.
  • a slightly modified lid, generally indicated at 38 has been shown.
  • the lid 38 is, in most respects, identical to the lid 24 shown in FIGS. 2 and 3. Therefore, identical portions of the lid and of the container are represented by the same reference numerals.
  • the flat central portion 26 of the lid 38 is connected to the channel-shaped rim 28 at the point, generally indicated at 39, most remote from the inwardly flared free edge 31 of the inner skirt 30.
  • This construction is particularly advantageous in that the inner skirt 30 retains its maximum natural resilience, a desirable feature for compensating for possible deviation in diameter of the rib 22 when the latter is not formed to close tolerance.
  • FIG. 5 Yet another modified lid construction also embodying the features of the invention is illustrated in FIG. 5, like portions of the components again being designated by the same reference numerals and unlike portions being designated by different reference numerals.
  • the lid generally indicated at 40, includes a fiat central portion 26 which is connected to the skirt 30 in the region of the inwardly tapered free edge 31 of the latter, as best indicated at 41.
  • This construction has the advantage that the free edge 31 of the skirt 30 is supported, thus rigidifying the skirt 30 and pressing the latter firmly into sealing engagement with the rib 22.
  • a plurality of circumferentially spaced, axially extending slots 44 are formed in the downwardly extending portion 34 of the outer annular skirt 29, the slots defining a plurality of lips or tongues 45.
  • the presence of such slits 44 greatly increases the flexibility of the skirt portion 34, permitting the tongues 45 defining the skirt portion 34 to be bent inwardly upon contraction of the expansible and contractable split clamping ring 25.
  • the width of the slits 44 and tongues '45 is not critical to the present invention, and may vary dependant upon the particular characteristics of the thermoplastic material used to form the lid. Indeed, when the plastic material is relatively flexible, although self-supporting, such slits may not be necessary. Similarily whether the particular lid construction selected conforms to that shown in FIGS. 3, 4, or 5 will depend upon such variable conditions as the material employed for the lid and/or the sidewall, as well as the dimensions or tolerances of the lid and/or sidewall.
  • a container comprising, in combination, a container sidewall, a bottom wall affixed to one end of said sidewall, and a lid removably aflixed to the other end of said sidewall; said sidewall having an external circumferentially disposed groove formed therein adjacent its said other end, said groove defining an internal complementary circumferential rib in said sidewall; said lid being of unitary construction and formed of self-supporting plastic material, said lid having a first downwardly extending circumferentially disposed annular skirt dimensioned to extend beyond the upper edge of said groove, said lid having a second annular skirt disposed concentrically within said first skirt, said second skirt having a free terminal edge extending beneath said rib, said second skirt having a portion complementary to the inner surface of said rib with said portion having a maximum external diameter in the region thereof closest to said free edge which exceeds the minimum internal diameter of said rib whereby said lid is retained firmly yet removably in place by virture of the cooperative engagement of said rib and said second skirt and the natural
  • a container as set forth in claim 1 further characterized in that means are porvided for clamping said lid in place upon said container, said clamping means having an annular portion extending into said groove for bending the portion of said first skirt extending beyond the upper edge of said groove into said groove and clamping said portion of said first skirt tightly against said sidewall.
  • a container as set forth in claim 2 further characterized in that said portion of said first skirt terminates in an annular thickened bead, said bead being greater in thickness than the space between said sidewall and said annular portion of said clamping means whereby inadvertent withdrawal of the bent-over portion of said first skirt is precluded.
  • a container as set forth in claim 2 further characterized in that said clamping means comprises an expansible and contractable channel-shaped split ring.
  • a container as set forth in claim 1 further characterized in that said lid is formed of a thermoplastic material.
  • a container as set forth in claim 5 further characterizer in that said material is polyethylene.
  • a container as set forth in claim 1 further characterized in that said fiat central portion of said lid is joined to said second skirt at a point disposed axially outward of the portion of said skirt shaped complementary to said rib so as to maximize the resiliency of said second skirt, said second skirt projecting downwardly from said central lid portion.
  • a container as set forth in claim 1 further-characterized in that said fiat central portion of said lid is joined to said second skirt in the region defined by the said portion of the latter which is complementary to said rib so as to snugly urge said complementary portion into engagement with said rib.
  • a container as set forth in claim 1 further characterized in that said flat central portion of said lid is joined to said second skirt at a point adjacent the free edge of the latter so as to maximize the rigidity of the latter.
  • a container as set forth in claim 1 further characterized in that the portion of said first skirt extending beyond the upper edge of said groove is axially slitted at circumferentially spaced points so as to decrease resistance to inward bending thereof into said groove.
  • a plastic lid for use with a container of the type having a sidewall and a bottom wall affixed to one end of the sidewall with the sidewall having an external circumferentially disposed groove formed therein adjacent its other end and defining an internal complementary circumferential rib in the sidewall, said lid characterized in that it is of unitary construction and is formed of selfsupporting plastic material, said lid having a first downwardly extending circumferentially disposed annular skirt dimensioned to extend beyond the upper edge of the groove, said lid having a second annular skirt disposed concentrically within said first skirt, said second skirt having a free terminal edge dimensioned to extend beneath the rib, said second skirt having a portion complementary to the inner surface of the rib with said portion having a maximum external diameter in the region thereof closest to said free edge which exceeds the minimum internal diameter of the rib so as to permit said lid to be firmly retained yet removably mounted in place on the container by virture of cooperative engagement between the rib and said second skirt and the natural resiliency of the latter
  • a plastic lid as set forth in claim 11 further characterized in that said first skirt terminates in a thickened annular bead.
  • a plastic lid as set forth in claim 11 further characterized in that the free edge of said second skirt flares radially inwardly and is of smaller external diameter than the smallest external diameter of the portion of said second skirt which is complementary to the rib.
  • a plastic lid as set forth in claim 11 further characterized in that said lid is formed of thermoplastic material.
  • a plastic lid as set forth in claim 14 further characterized in that said material is polyethylene.
  • a plastic lid as set forth in claim 11 further characterized in that said fiat central portion of said lid is joined to said second skirt at a point disposed axially outward of the portion of said skirt shaped complementary to the rib so as to maximize the resiliency of said second skirt, said second skirt projecting downwardly from said central lid portion.
  • a plastic lid as set forth in claim 11 further characterized in that said flat central portion of said lid is joined to said second skirt in the region defined by the said portion of the latter which is complementary to the rib so as to rigidify the said second skirt.
  • a plastic lid as set forth in claim 11 further characterized in that said flat central portion of said lid is joined to said second skirt at a point adjacent the free edge of the latter so as to maximize the rigidity of the latter.
  • a plastic lid as set forth in claim 11 further characterized in that said first skirt has formed therein a plurality of circumferentially spaced axially extending slits for reducing resistance of said skirt to bending forces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US703144A 1967-02-10 1968-02-05 Shipping containers and plastic lids therefor Expired - Lifetime US3424340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6582/67A GB1165996A (en) 1967-02-10 1967-02-10 A Shipping Container and Cover or Lid therefor

Publications (1)

Publication Number Publication Date
US3424340A true US3424340A (en) 1969-01-28

Family

ID=9817119

Family Applications (1)

Application Number Title Priority Date Filing Date
US703144A Expired - Lifetime US3424340A (en) 1967-02-10 1968-02-05 Shipping containers and plastic lids therefor

Country Status (5)

Country Link
US (1) US3424340A (tr)
BE (1) BE710486A (tr)
FR (1) FR1552622A (tr)
GB (1) GB1165996A (tr)
NL (1) NL6801743A (tr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499574A (en) * 1968-12-05 1970-03-10 Bennett Ind Inc Resilient closure having retaining means
US3531013A (en) * 1967-10-25 1970-09-29 Mauser Kg Container closure having fastening means
US3599826A (en) * 1968-06-15 1971-08-17 Heinz Rocher Container sealed against liquids
US3624789A (en) * 1970-02-02 1971-11-30 Continental Can Co Container stacking and sealing overcap
US3837520A (en) * 1972-03-07 1974-09-24 J Freudendahl Container, especially for agricultural products
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock
US4454889A (en) * 1983-09-21 1984-06-19 Contreras Sr Joseph P Compact with air tight closure
US4500010A (en) * 1983-02-17 1985-02-19 Schuetz Udo Wide-necked container of a synthetic resin with removable lid
US4932549A (en) * 1987-03-13 1990-06-12 Sofratube Rct, S.A. Circular cover for conditioning vats for bulk goods
US5301853A (en) * 1991-05-09 1994-04-12 Greif Bros Corporation Open top plastic drum with plastic cover
US20030155365A1 (en) * 2002-02-15 2003-08-21 David Llorente Lecue Receptacle
US20110186578A1 (en) * 2010-02-03 2011-08-04 Tomoya Kawakami Multipurpose elastic loop gasket
US20140238988A1 (en) * 2011-10-12 2014-08-28 Sonoco Development, Inc. Sealing overcap for a container
EP2168888B1 (en) * 2008-09-24 2016-04-13 Tinware Direct Limited Container
USD762340S1 (en) * 2015-04-22 2016-07-26 Naseem Khan Tea light cremation urn

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714469A (en) * 1954-11-24 1955-08-02 Emery Carpenter Container Comp Locking ring construction
US2731280A (en) * 1952-07-22 1956-01-17 Flight Refueling Ltd Resilient pipe-connector with multipart clamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731280A (en) * 1952-07-22 1956-01-17 Flight Refueling Ltd Resilient pipe-connector with multipart clamp
US2714469A (en) * 1954-11-24 1955-08-02 Emery Carpenter Container Comp Locking ring construction

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531013A (en) * 1967-10-25 1970-09-29 Mauser Kg Container closure having fastening means
US3599826A (en) * 1968-06-15 1971-08-17 Heinz Rocher Container sealed against liquids
US3499574A (en) * 1968-12-05 1970-03-10 Bennett Ind Inc Resilient closure having retaining means
US3624789A (en) * 1970-02-02 1971-11-30 Continental Can Co Container stacking and sealing overcap
US3837520A (en) * 1972-03-07 1974-09-24 J Freudendahl Container, especially for agricultural products
US3977563A (en) * 1975-06-30 1976-08-31 Hercules Incorporated Container-lid interlock
US4500010A (en) * 1983-02-17 1985-02-19 Schuetz Udo Wide-necked container of a synthetic resin with removable lid
US4454889A (en) * 1983-09-21 1984-06-19 Contreras Sr Joseph P Compact with air tight closure
US4932549A (en) * 1987-03-13 1990-06-12 Sofratube Rct, S.A. Circular cover for conditioning vats for bulk goods
US5301853A (en) * 1991-05-09 1994-04-12 Greif Bros Corporation Open top plastic drum with plastic cover
US20030155365A1 (en) * 2002-02-15 2003-08-21 David Llorente Lecue Receptacle
EP2168888B1 (en) * 2008-09-24 2016-04-13 Tinware Direct Limited Container
US20110186578A1 (en) * 2010-02-03 2011-08-04 Tomoya Kawakami Multipurpose elastic loop gasket
US9457941B2 (en) * 2010-02-03 2016-10-04 Tomoya Kawakami Multipurpose elastic loop gasket
US20140238988A1 (en) * 2011-10-12 2014-08-28 Sonoco Development, Inc. Sealing overcap for a container
US9051095B2 (en) * 2011-10-12 2015-06-09 Sonoco Development, Inc. Sealing overcap for a container
USD762340S1 (en) * 2015-04-22 2016-07-26 Naseem Khan Tea light cremation urn

Also Published As

Publication number Publication date
GB1165996A (en) 1969-10-01
NL6801743A (tr) 1968-08-12
BE710486A (tr) 1968-06-17
FR1552622A (tr) 1969-01-03

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