US3566946A - Y-flanged containers and cover members therefor - Google Patents

Y-flanged containers and cover members therefor Download PDF

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Publication number
US3566946A
US3566946A US787050A US3566946DA US3566946A US 3566946 A US3566946 A US 3566946A US 787050 A US787050 A US 787050A US 3566946D A US3566946D A US 3566946DA US 3566946 A US3566946 A US 3566946A
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flange
container
cover member
rim
set forth
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James Ian Mac Donald
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    • 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
    • B65D43/0206—Removable lids or covers without integral tamper element secured by snapping over beads or projections inside a peripheral U-shaped channel in 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
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00037—Disc closures
    • 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
    • B65D2543/00453—Contact between the container and the lid in a peripheral U-shaped channel of the container
    • B65D2543/00462—Contact between the container and the lid in a peripheral U-shaped channel of the container peripheral U-shaped channel of the lid
    • 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
    • B65D2543/00527—NO contact
    • 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
    • B65D2543/00546—NO contact
    • 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
    • B65D2543/0074—Massive 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
    • B65D2543/00722—Profiles
    • B65D2543/00759—Flange or lip
    • 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
    • B65D2543/00768—U-shaped or inverted U
    • 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
    • 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
    • B65D2543/00824—Means for facilitating removing of the closure
    • B65D2543/00833—Integral tabs, tongues, handles or similar

Definitions

  • a closing cover member is provided for the 7 6 [31] 02 mouth opening of an open-ended vessel such as a pail having a rim and made of a structural plastic material having nonrigid, I 54] FLANGE CONTAINERS AND COVER flexibly distortable mechanical properties, such as high-density polyethylene, the par] having a peripheral ngrdifylng flange MEMBERS THEREFOR rising outwardly from the exterior of the sidewall commenclng 13 Claims, 9 Drawing Figs.
  • Thisinvention relates to open-ended containers provided with sealing covers having utility for the storage and transportation of liquid materials generally and foodstuffs specifically, and the invention is more particularly embodied in an improved scalable pail provided with a rim and a planar cover releasably seated upon therim, the pail having a peripheral made of a nonrigid, flexibly distortable materialsuch ashigh "density linear polyethylene and provided with a planar cover member of the same or similar material, or even ofa relatively rigid material such as metal, strongly resist internal pressures and fluid surges, permitting stacking andshipping of such containers without risk of loss of seal ortren oval of the cover under usual handling conditions, yet may be readily opened by manual stripping of the cover starting at any part of its periphery.
  • the reinforcement provided .by the rigidifying flange maintains the shape of the container mouth opening excellently in handling and pouring.
  • a novel and highly advantageous :locking seal may be provided for an open-ended containerwherein the sealing action does not depend on the adhesion of a distended annular portion of the cover, but rather on the radial compressive strength of a peripheral flangeportion of the cover which is seated into and is gripped between theexterior of the container and a hook flange joined with the outerend ofa rigidifying annular conic flange rising outwardly from the container sidewall at an acute angle.
  • This arrangement transfers the cooperate to increase; radial stiffness of the closed container,
  • the invention consists in providing, an open end container formed as a hollow body having an enclosing sidewall terminating as a rim defining a mouth opening, a peripheral rigidifying flange integral with the container sidewall and rising outwardly below the rim at an acute angle preferably about 45, the flange terminating in a continuous inturned hook flange disposed at about the level of the rim, and a mating cover member having an intermediate planar portion connecting with a continuous.
  • the core mold is provided with a slight taper in the sidewall andthe exterior mold is provided with a break plane, intersecting the junction of the rigidifying flange with; the hook flangeuln molding the cover of polyethylene or similar flexibly distortable material, the peripheral sealing flange is shaped to conform to the plan form of the rigidifying'fla nge and the rim-girdling depending flange is shaped to, closely engage the exterior ,of the rim, i.e., the plan form .will be generally either circular, or rectangular with rounded cornersf
  • the cover member may also be constructed, according to one alternative, with the intermediate portion axially depressed below the level of the rim, by providing two depending flanges radially spaced and forming an inverted channel portion, defining an upward groove having an axial extent .such that the rim is seated in the
  • the container may alternatively be closed by using a relatively simple sheet member shaped as a disc or to the plan form of the container,,or as a planar member having a dependingperipheral sidewall carrying an outward bead which may ,proved as compared with prior art forms.
  • a relatively simple sheet member shaped as a disc or to the plan form of the container,,or as a planar member having a dependingperipheral sidewall carrying an outward bead which may ,proved as compared with prior art forms.
  • cover members no part of the be engaged under the hook flange to effect covering; such cover members however would provide less effective sealing, and the enhanced sealing described for the conically flanged cover members would not be present.
  • Such cover members may be used where the-fluidtight sealing action is not necessary andwhere handling is gentle.
  • the container of metal or other rigid material having a cover molded of a flexibly distortable material, or ,vice versa, provided onlythat at least one of. the rigidifying flange and the sealing flange have the required distortability when the cover is axially pressed down ntoengage its margininside the hook flange.
  • BIG. 3 is anaxial diametral section in enlarged scale taken on line 3-3 of FIG. 1 showing the engagement of thecover in closing relation on the rim and locked with the rigidifying flange;
  • FIG. 4 is a view similar to FIG. 3 showing the coveraxially separated at .the position of initially engaging the rim;
  • FIG. 5 is an analytic diagram relating to FIG. 3 illustrating sealingforce and lockingaction
  • FIG. 6 is a section similar to FIG. 3 showing a cover modified to provide an inverted rim-engaging channel
  • FIG. 7 is a cross-sectional view showing a modified shorter rigidifying flange disposed at a larger acute angle wherein the container is made of metal and the cover of polyethylene;
  • FIGS. 8 and 9 show alternative cover members and rim heights employing a disc cover and a cap cover.
  • a container or pail generally designated 10 having a flat bottom wall 11 is formed with an upwardly extending sidewall 12 shaped as a frustum of a cone, having a wall taper of a few degrees, the sidewall being formed with an offset portion 13 providing improved radial wall rigidity.
  • the upper end of the sidewall terminates in a rim 14.
  • a continuous peripheral rigidifying flange 15 of annular plan form extends integrally from the container sidewall at a junction 16 therewith, rising at an acute angle designated D which may range from about 15 to about 75 with respect to the sidewall, a preferred angle as shown being about 45.
  • the outer margin 17 of the flange 15 carries an upwardly inturned edge flange 18 having a blunt marginal edge 19 and a conic annular surface 20 disposed to provide a con tained angle of 90 or slightly less than 90 with respect to the upper surface 21 of the rigidifying flange.
  • the upper margin of the edge flange is in a plane disposed close to theplane of the rim 14, or preferably slightly below it
  • the interior portion 22 of the container between the rim l4 and the junction 16 is preferably formed with a reduced taper and may be nearly vertical, or may be provided with a small taper opposite to that of the interior of the sidewall 12, to facilitate applying or removing the cover generally designated 23.
  • the container is preferably molded of high-density linear polyethylene or other structural material which is similarly flexibly distortable, i.e. having a capacity of returning to its original shape after release of a limited deforming pressure.
  • the cover 23 may be molded, as shown, of the same or similar material, and is provided with an intermediate planar portion 24 which may be disclike, or slightly dished inwardly as shown.
  • a depending flange 25 defining the periphery of the inter mediate portion 24 is so dimensioned that the inner surface 26 may be axially forced into close engagement about the rim and sidewall portion 22.
  • the lower margin 27 of flange 25 is formed with a lateral nose or inward continuous projection disposed at the same diametral distance from the container axis as the surface 26, or preferably at a slightly lesser radius.
  • the flange is integral with a peripheral sealing flange 28 having conic annular form, the undersurface 29 of which is disposed at about the same or a slightly greater angle than is the surface 21. As shown in FIGS. 3 and 6, the angular relationship should be such that preferably the sealing flange seats in nested relation upon the upper surface 21 of the rigidifying flange with a small clearance between the adjacent conic surfaces in the vicinity ofjunction 16.
  • the flange 28 has a length as measured along a radial element of the generating cone which is a multiple of the thickness of the flange, to provide sufficient flexure to permit axial insertion under the flange surface 20.
  • the distance between the outermost marginal edge 30 of the flange 28, which is shaped to a rounded profile, and the inward projection 27, is made slightly larger than the greatest distance between the flange surface 20 and the exterior surface 22 so that insertion of flange 28 causes a slight distension outwardly of hook flange 18. It has been found that injection molding methods favor the inherent radial contraction of marginal edge 27 so that deliberate provision in the making of the molds may be unnecessary to secure an inward protuberance. It is to be understood that compressive sealing may be obtained even when the inner margin of flange 28 is flush with the internal surface of flange 25.
  • the horizontal extent of flange 28 between the marginal edge portions 27 and 30 is larger, by the distance a, than the minimum horizontal distance between the nose 19 of hook flange 18 and the exterior sidewall 22. Consequently, axial engagement of the cover will tend to inwardly distort the container rim 14 as edge 27 slides down along the outer surface 22, and when edge 30 encounters the nose 19 the flange 28 will tend to be flexed as edge 30 lifts due to interference, along a sector being forced into locking engagement; flange 18 will be distended along such sector until edge 30 has seated undersurface 20 in contact therewith.
  • the sectoral element 128 of the sealing flange may be taken as an end-loaded strut which is pivotally held at one end by a frame and bearing in free sliding relationship against vertical frame 122 at its other end, which is pin connected to the end of tension link 125.
  • the compressive load is F/Cos I
  • the horizontal sealing pressure I-I against frame 122 is F.Tan 1
  • the tension load T in the structural member 115 acting along line b-b is F/Cos I
  • the total compressive load in the sealing flange, as well as the sealing pressure, will be increased by the contribution due to flexing of flange 18 resulting from initial seating of the cover.
  • the line of action of the compressive stress will tend to make a slight angle with respect to the upper surface 21 as the edge 27 is lifted slightly away from junction 16 due to distortions resulting fromthe axial load.
  • the rigidifying flange will tend to elongate slightly and because of the finite distance x between the line z-z and the medial tension line b-b in the rigidifying flange, a torque will be exerted tending to spread the flange 18.
  • due to the favorable beam strength of the latter even at moderate wall thicknesses considerable internal pressure may be resisted without noticeable distortion.
  • the containers according to the invention will be used with internal pressures not greatly different from atmospheric, and variations therefrom within the container will in part be taken up by flexing of the intermediate portion 24, Fluid surges and upending of filled containers however will produce local internal pressure differences either above or below atmospheric, and the efficacy of seal enhancing in resisting loss of fluid under such disturbances is excellent.
  • the alternative cover member of FIG. 6 is preferred, wherein an additional flange 32 extending upwardly is provided inwardly of flange 25, the flanges being joined by a rounded annular portion 33 overlying the rim 14. Due to taper of the sidewall, the lower end will seat inwardly of sidewall 32 upon shelf 34 formed at the junction of intermediate planar portion 24 with the flange 32. It will be evident that large axial loads applied tending to press annular portion 33 down on the rim will have little effect since sidewall 12 is radially stiffened and gains high resistance to buckling or crushing due to support by closely engaging flanges 25 and 32. Any increase in internal pressure resulting from theaxial load of stacked pails and contents acts on the annular undersurface of portion 33,
  • angle 1 When angle 1 is'made smaller, the, horizontal sealing pressure H and the sealing flangecompressive stress Care each diminished while use of angles greater than 45 tends .to, increase both H and C and to bring them to a more nearly equal higher value.
  • an angle .(b which may be as large as 75 is practically feasible when the compressive strength of the flange 28 is made suitably large.
  • an integral tab is provided as shown in FIG, 1, attached along a short arcuate length of the upper side of flange 28 adjacent edge 30.
  • the tab is grasped and pulled upwardly and inwardly until some part of edge 30 is exposed and a gap 36 is provided, adjoining sectoral portions of flange 28 may be freed by axial pull on them, or by prying them free with a tool slid under the surface 29.
  • a disc having a peripheral edge 37 shown in FlG.'8 is shaped to the plan of the hook flange 18,, so that edge 37 may be sectorally advanced in engagement under the'surface 20.
  • the level of rim 14 is advantageously either slightly lower than surface or at nearly the same level so that the marginal zone may be flexed slightly and pressed upon rim 14. Where the rim l4 lies in a plane considerably above the plane of surface 20, the cap sidewall and a bead or other outward continuous protuberance 38 shaped to snap under the nose 19 and spring outwardly against surface 20.
  • cover of FIG. 9 is used, being provided with a depending It is to be understood that although the description has been directed to embodiments having tapering enclosing sidewalls terminating in a rim whose diameter is the largest diameter of the body, it is entirely feasible to construct containers of constant cross-sectional dimensions along their axial length, i.e. to provide cover members which in effect form removable end walls for cylindrical bodies such as tubes or pipes.
  • a container and a cover membertherefor formed of a flexibly distortable structural material said container comprising a hollow body having an'enclosing sidewall and a closing bottom wall, the upper end of said sidewall terminating in a rim defining a mouth opening, arigidifying flange member of 4.
  • a container and cover member as set forth in claim 6 wherein said hook flange, has an undersurface which is inclined to the upper surface of said rigidifying flange with an included angle which is a right angle or slightly less than a right angle.
  • a container and cover member as set forth in claim 2 wherein said mouth closing portion of'said cover member comprises a central planar portion, an upwardly extending wall portion integrally joined with said planar portion, an annular rounded portion merging with said upwardly extending wall portion and with said depending sidewall portion, said annular rounded portion having an undersurface conformably i wherein said rim has the largest diameter of said hollow body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US787050A 1968-08-09 1968-12-26 Y-flanged containers and cover members therefor Expired - Lifetime US3566946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA27206 1968-08-09

Publications (1)

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US3566946A true US3566946A (en) 1971-03-02

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US (1) US3566946A (xx)
JP (1) JPS522345B1 (xx)
BE (1) BE737332A (xx)
CA (1) CA858334A (xx)
DE (1) DE1936687A1 (xx)
DK (1) DK127872B (xx)
FR (1) FR2015350A1 (xx)
GB (1) GB1237351A (xx)
IE (1) IE33516B1 (xx)
MY (1) MY7400276A (xx)
NL (1) NL154704B (xx)
NO (1) NO126125B (xx)
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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862505A (en) * 1972-02-25 1975-01-28 Rudolf Jeroma Advertising devices
DE2654903A1 (de) * 1975-12-04 1977-06-16 Airflex Containers Ltd Warenbehaelter
US4043482A (en) * 1976-01-21 1977-08-23 In. Da. Te. Aktiengesellschaft Re-usable containers
US4105136A (en) * 1977-01-28 1978-08-08 Gould Inc. Snap-in molded cover assembly for access opening
US4124141A (en) * 1977-07-11 1978-11-07 Armentrout James L Sterile container
US4192434A (en) * 1978-08-14 1980-03-11 Federal Paper Board Company, Inc. Container closure assembly
US4524882A (en) * 1983-06-20 1985-06-25 Buc John L Molded container and closure
US4836407A (en) * 1987-08-04 1989-06-06 Cpc-Rexcel, Inc. Tamper-evident, differential pressure-thermoformed lidded plastic container
US4893452A (en) * 1987-08-04 1990-01-16 Cpc-Rexel, Inc. Method for making a tamper-evident, differential pressure-thermoformed lidded plastic container
US5185008A (en) * 1991-06-21 1993-02-09 Hollister Incorporated Two-piece ostomy appliance and coupling therefor with rocking wedge lock
US5303839A (en) * 1991-11-27 1994-04-19 Jokey Plastik Wipperfurth Gmbh Plastic container with lid
US5411160A (en) * 1993-07-19 1995-05-02 Ipl, Inc. Child resistant closure
US5437386A (en) * 1993-08-11 1995-08-01 Von Holdt; John W. Container with tamper-evident lid removal means
EP0798226A2 (en) * 1996-03-26 1997-10-01 Sonoco Products Company Two-piece plastic container and removable cover
US5806710A (en) * 1995-11-14 1998-09-15 Shiffer; David A. Container and closure lid
US5964372A (en) * 1995-02-28 1999-10-12 Georg Utz Holding Ag Plastic container
US6250494B1 (en) * 1999-03-30 2001-06-26 John Clementi Plastic containers with interlocking lids
US6491185B1 (en) 1999-11-15 2002-12-10 United States Can Company Molded container including plug with multiple locking arms
US20070114236A1 (en) * 2005-11-15 2007-05-24 Tech Ii, Inc. Container lid and associated assembly
US20090223986A1 (en) * 2008-02-10 2009-09-10 Xubin Song Preservation container cover
US20100108705A1 (en) * 2006-12-21 2010-05-06 Chandela Limited Container and container closure
ITBS20110059A1 (it) * 2011-04-22 2012-10-23 Avantra Srl Societa Unipersonale Vaschetta per confezionare prodotti alimentari
CN103620047A (zh) * 2011-04-12 2014-03-05 波拉南特有限公司 用于塑料容器和封盖的密封锁定装置以及使用这种锁定装置的容器
US11533896B1 (en) * 2021-08-23 2022-12-27 Jesse Jonah White Insect trap lid for buckets

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1524116A (en) * 1974-12-19 1978-09-06 World Inventions Ltd Container for foodstuffs or the like
NZ186585A (en) * 1977-03-30 1981-03-16 Kingsdown Medical Consultants Coupling for joining pad or dressing to an ostomy bag
GB1603743A (en) * 1978-02-07 1981-11-25 Modern Precision Engs Ass Ltd Sealing device
NL7903998A (nl) * 1978-06-08 1979-12-11 Aarts Aloysius J B Eenheidsvloeistofcup en werkwijze voor het vervaardigen daarvan.
US4182475A (en) * 1979-01-19 1980-01-08 The Mead Corporation Drum closure assembly
JPS5714768U (xx) * 1980-06-30 1982-01-26
DK549180A (da) * 1980-12-23 1982-06-24 Nigu Pack As Baeger eller boetteformet formstofemballage med paatrykningslaag og fremgangsmaade ved paatrykning af laaget
DK256181A (da) * 1981-06-11 1982-12-12 Dme Plastic As Plastbeholder med laag
DE3312495A1 (de) * 1983-04-07 1984-10-11 John W. von Niles Ill. Holdt Behaelter mit verschlussdeckel
GB2137598B (en) * 1983-04-07 1987-03-25 Holdt J W Von Container closable by a snap-on lid
DK149152C (da) * 1983-07-28 1986-09-15 Jens Ove Nielsen Salgsemballage af dunk- eller baegertypen samt med laag og sikkerhedslukke
NL8601917A (nl) * 1986-07-24 1988-02-16 Curver Verpakkingen Houder met deksel.
GB8704434D0 (en) * 1987-02-25 1987-04-01 Peerless Plastics Packaging Lidded container
US4928881A (en) * 1988-04-01 1990-05-29 Inman Mold Manufacturing Co., Inc. Air freshener
DE4306707C2 (de) * 1993-03-04 1997-01-16 Daimler Benz Ag Mit besonders festem Gewinde versehener Ausgleichsbehälter aus Kunststoff für Kraftfahrzeuge
DE19902372C2 (de) * 1999-01-21 2002-07-04 Hans Dieter Niemann Abdichtung einer Fensterbank und Fensterbank

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862505A (en) * 1972-02-25 1975-01-28 Rudolf Jeroma Advertising devices
DE2654903A1 (de) * 1975-12-04 1977-06-16 Airflex Containers Ltd Warenbehaelter
US4043482A (en) * 1976-01-21 1977-08-23 In. Da. Te. Aktiengesellschaft Re-usable containers
US4105136A (en) * 1977-01-28 1978-08-08 Gould Inc. Snap-in molded cover assembly for access opening
US4124141A (en) * 1977-07-11 1978-11-07 Armentrout James L Sterile container
US4192434A (en) * 1978-08-14 1980-03-11 Federal Paper Board Company, Inc. Container closure assembly
US4524882A (en) * 1983-06-20 1985-06-25 Buc John L Molded container and closure
US4836407A (en) * 1987-08-04 1989-06-06 Cpc-Rexcel, Inc. Tamper-evident, differential pressure-thermoformed lidded plastic container
US4893452A (en) * 1987-08-04 1990-01-16 Cpc-Rexel, Inc. Method for making a tamper-evident, differential pressure-thermoformed lidded plastic container
US5185008A (en) * 1991-06-21 1993-02-09 Hollister Incorporated Two-piece ostomy appliance and coupling therefor with rocking wedge lock
US5303839A (en) * 1991-11-27 1994-04-19 Jokey Plastik Wipperfurth Gmbh Plastic container with lid
US5411160A (en) * 1993-07-19 1995-05-02 Ipl, Inc. Child resistant closure
US5437386A (en) * 1993-08-11 1995-08-01 Von Holdt; John W. Container with tamper-evident lid removal means
US5964372A (en) * 1995-02-28 1999-10-12 Georg Utz Holding Ag Plastic container
US5806710A (en) * 1995-11-14 1998-09-15 Shiffer; David A. Container and closure lid
US5713484A (en) * 1996-03-26 1998-02-03 Sonoco Products Company Two-piece plastic container and removable cover
EP0798226A3 (en) * 1996-03-26 1998-10-14 Sonoco Products Company Two-piece plastic container and removable cover
EP0798226A2 (en) * 1996-03-26 1997-10-01 Sonoco Products Company Two-piece plastic container and removable cover
US6250494B1 (en) * 1999-03-30 2001-06-26 John Clementi Plastic containers with interlocking lids
US6491185B1 (en) 1999-11-15 2002-12-10 United States Can Company Molded container including plug with multiple locking arms
US20070114236A1 (en) * 2005-11-15 2007-05-24 Tech Ii, Inc. Container lid and associated assembly
US8205768B2 (en) 2005-11-15 2012-06-26 Tech Ii, Inc. Container lid and associated assembly
US20100108705A1 (en) * 2006-12-21 2010-05-06 Chandela Limited Container and container closure
US8777052B2 (en) * 2006-12-21 2014-07-15 Chandela Limited Container and container closure
US20090223986A1 (en) * 2008-02-10 2009-09-10 Xubin Song Preservation container cover
US8418870B2 (en) * 2008-02-10 2013-04-16 Xubin Song Cover for preservation container
CN103620047A (zh) * 2011-04-12 2014-03-05 波拉南特有限公司 用于塑料容器和封盖的密封锁定装置以及使用这种锁定装置的容器
WO2012141661A3 (en) * 2011-04-12 2016-05-26 Poranunt Co., Ltd. Sealing and locking means for plastic containers and lids, and to containers using such locking means
ITBS20110059A1 (it) * 2011-04-22 2012-10-23 Avantra Srl Societa Unipersonale Vaschetta per confezionare prodotti alimentari
EP2514679A1 (en) * 2011-04-22 2012-10-24 Avantira SRL Societa' Unipersonale Tub for packaging food products
US11533896B1 (en) * 2021-08-23 2022-12-27 Jesse Jonah White Insect trap lid for buckets

Also Published As

Publication number Publication date
CA858334A (en) 1970-12-15
NO126125B (xx) 1972-12-27
FR2015350A1 (xx) 1970-04-24
JPS522345B1 (xx) 1977-01-21
IE33516L (en) 1970-02-09
NL6911911A (xx) 1970-02-11
IE33516B1 (en) 1974-07-24
DK127872B (da) 1974-01-28
MY7400276A (en) 1974-12-31
BE737332A (xx) 1970-01-16
GB1237351A (en) 1971-06-30
SE351610B (xx) 1972-12-04
NL154704B (nl) 1977-10-17
DE1936687A1 (de) 1970-02-12

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