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Vented container closure lids

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Publication number
US3083861A
US3083861A US3221860A US3083861A US 3083861 A US3083861 A US 3083861A US 3221860 A US3221860 A US 3221860A US 3083861 A US3083861 A US 3083861A
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Prior art keywords
lid
container
wall
end
portion
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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.)
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Stephen W Amberg
Frank S Landers
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Lily-Tulip Cup Corp
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Lily-Tulip Cup Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D51/00Closures not otherwise provided for
    • B65D51/16Closures not otherwise provided for with means for venting air or gas
    • B65D51/1605Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
    • B65D51/1616Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0208Removable lids or covers without integral tamper element secured by snapping over beads or projections on both the inside and the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/021Removable 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0204Removable lids or covers without integral tamper element secured by snapping over beads or projections
    • B65D43/0212Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the outside, or a part turned to the outside, of the mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0214Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0222Removable lids or covers without integral tamper element secured only by friction or gravity only on the outside, or a part turned to the outside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00231Overall construction of the lid made of several pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00231Overall construction of the lid made of several pieces
    • B65D2543/0024Overall construction of the lid made of several pieces two pieces, one forming at least the whole skirt, the other forming at least the whole upper part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact 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
    • B65D2543/00509Cup
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact 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
    • B65D2543/00527NO contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00555Contact between the container and the lid on the inside or the outside of the container on both the inside and the outside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/0062Groove or hollow bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/00638Rolled edge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
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    • B65D2543/00444Contact between the container and the lid
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2543/00Lids or covers essentially for box-like containers
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    • B65D2543/00814Dots

Description

April 2, 1963 s. W.AMBERG ETAL 3,083,861

VENTED CONTAINER CLOSURE LIDS Filed May 27. 1960 2 Shasta-Sheet 1 April 1963 s. w. AMBERG ETAL 3,083,861

VENTED CONTAINER CLOSURE LIDS Filed May 27. 1960 2 Shasta-Sheet 2 A 5 INVENTORS.

STEPHEN VV HMBEPG. BY [7 N/(SL A/vzJE/Ps.

States harem 3,983,861 VENTED GGN'BJAHJER (ZLQSURE LIBS Stephen W. Amherg, Flushing, and Frank S. Flanders,

Huntington, FLY, assignors to Lily-Tulip Cup Cerporation, New Yorlr, N11, a corporation of Eelaware Filed May 27, W66 Ser. No. 32,218 4 tiialms. {@l. 220 4 1) This invention relates to container closure lids and more particularly to container lids having vent means permitting the passage therethrough of vapors, such as gases, steam or air, while preventing the passage of liquids.

In the packaging of potable liquids and certain foods in closed containers, it is desirable, and sometimes essential, to provide a venting means which will relieve the differential of pressure between the interior and the exterior of the closed container. The differential in pressure may be due to one or more causes. More generally the cause is the thermal difference between the contents of the container and the exterior, such as is experienced with hot drinks or chilled or frozen foods; but at other times the cause may be the liberation of gases from a liquid, e.g., a carbonated beverage, or gases or entrapped air from a food. in the absence of a vent the closure lid may be displaced, or if locked in sealed relationship, as by crimping, the lid or container may be bulged or distorted or even may burst. Heretofore the problem has been to provide a suitable vent means for the escape of vapors, while at the same time preventing the escape of liquids.

By way of example, in putting up hot drinks, such as coffee, chocolate, soup, etc., for carry-out service, it is customary to place the same in a container such as a cup known for such purposes and confine the same therein by means of a closure lid which fits the lip of the container in liquid sealing engagement. However, the hot liquid expands the entrapped air or other vapors, such as steam, and the resulting pressure breaks the liquid seal between container and closure lid and permits the liquid to escape.

The expedient usually employed is to provide a vent by puncturing the lid with one or more small holes, but it has been found that this permits the coifee or other liquid to escape; thus making an unsightly stain and permitting the liquid to collect on the top of the lid. Also, if the closed container is tipped, a substantial amount of liquid may escape. Edorts have been made to avoid this by using a lid with a double top comprising spaced end walls with small holes in the outer wall offset from small holes in the inner wall; and in another form by using a plurality of pressure equalizing chambersv However, these expedients, while reducing the leakage, have not proven satisfactory, either from a manufacturing or a use standpoint.

The invention wil also be found useful in permitting the e ne of gas from carbonated beverages, while preventin the escape of liquid. Likewise, in packaging foods it is sometimes desirable to permit the passage of air inwardly into, or the passage of air or other vapors outwardly from the closed container, while preventing the escape of liquid components of the packaged food.

The present invention provides a closure lid adapted for sealing engagement with a container and permits vapors under pressure to escape through the cover, while preventing the escape of liquid. The pressure contemplated is the differential between atmospheric pressure and the pressure within the closed container, so that whether the internal pressure be greater or less than atmospheric pressure, air or other vapors may pass through the lid but liquids may not.

An object of our invention is to provide a closure lid Patented Apr. 2, 1%33 of the particular type suitable for the type of container desired to be closed and which lid is pervious to vapors and impervious to liquids.

Another object is to provide a closure lid which may be economically made, readily used and which will permit the passage therethrough of vapors while preventing the passage of liquids.

Other and further advantages and features of the invention will be more fully understood from the following description, taken in conjunction with the accompanying drawings, in which:

PEG. 1 is a top plan view showing an embodiment of the invention in which the lid is shown in use on a container of the type having 2. rolled rim and a spaced annular groove;

FIG. 2 is a cross-sectional view taken on the line 22 of H6. 1;

FIG. 3 is a bottom plan view of the lid shown in FIGS. 1 and 2;

FIG. 4 is a cross-sectional view similar to FIG. 2 but showing a somewhat modified form of lid in use on a container such as on a paper cup of conventional type;

FIG. 5 is a plan view showing a further embodiment of the invention;

FIG. 6 is a cross-sectional view taken at line 6-6 of FIG. 5 and showing the lid applied to a container such as shown in PEG. 2;

FIG. 7 is a cross-sectional view showing a further embodiment of the invention comprising a cylindrical type of lid in frictional sealing engagement with a cylindrical container partly broken away; and

FIG. 8 is a cross-sectional view showing a further embodiment of the invention comprising a disc type lid in sealing engagement within an internal peripheral groove formed in the lip of a container, partly broken away.

Referring to the drawings, and more particularly to FIGS. 1, 2 and 3:

The lid made in accordance with my invention is designated in general as 10, and is applied to a container designated in general as 11. The lid in the present embodiment is vacuum formed from plastic material such as polystyrene and has a Wall thickness of about .010"; but the thickness ma of course, vary Within limits well understood in the art, and the lid may be made of other suitable plastic material, e.g. polypropylene. In the present embodiment the container 11 is of conventional type such, for example, as that made by Lily-Tulip Cup Corporation and sold under its trademark Nestrite, having a mouth provided with an internal peripheral groove and a beaded rim 1?. The lid iii comprises an end wall 1% and a peripheral rim portion for sealing engagement with the mouth of the container. The peripheral rim portion is preferably provided with a bead 15 for engagement in the groove 12 and with a skirt 16, generally U-shaped in cross section, for locking engagement with the rolled rim 13 of the container in the customary manner.

The end wall 14 is provided with an outwardly offset portion 17 forming an interior recess 18, and said offset portion 17 is provided with a relatively small vent hole 19. The end wall is provided with a vent area pervious to vapors and impervious to liquids. In the present embodiment, such vent area is provided with a barrier formed by a piece of sheet material or layer 20 extending across and covering the recess 18 and secured in liquid-tight engagement with the end wall surrounding said recess. Preferably, the margin of this sheet is secured to the plastic end wall by heat and pressure, and preferably the heat and pressure are applied to a narrow marginal zone designated Ztia (FIGS. 1 and 3) to facilitate the sealing. In the present embodiment, the sheet material 20 consists of a piece of filter paper impregnated with a water repellant capable of withstanding a temperature of at least 180 F. and preferably up to about 200 F. The filter paper which we have found entirely satisfactory is filter paper having a basis weight of 25 lbs. with a thickness of about .0045" in which the pores are of random size with maximum size of 0.0005". However, it is contemplated that the filter paper may have a thickness of .002" to about .008". In practicing our invention we have successfully used as a water repellent a chrome complex such as that sold by E. I. du Pont de Nemours & Co., under its trademark Quilon. In general, for an 8 oz. container, it is preferable to have a vent area of about 1 square inch and accordingly the recess 18 has an area in the plane of the sheet material 20 of about 1 square inch to permit ready escape of vapors therethrough. Larger containers would, of course, require a proportionately larger vent area. The hole 19 may be as small as about but may be substantially larger, if desired; but normally, it is preferable to keep this hole relatively small.

It will be readily appreciated from the foregoing that the porous cellulosic material 20 is protected against being accidentally punctured by the offset end wall portion 17 and that the recess 18 further provides in effect an equalizing chamber to permit expansion and slow the passage of vapors. While it is preferred to use filter paper or other porous cellulosic sheet material from a practical and economical standpoint; it is contemplated that other sheet material may be employed having similar properties. Another material contemplated is a sheet of micro-porous plastic with a thickness of about .012 in which the pores have a diameter of about 8 to 12 microns. It has been found that with the use of such a micro-porous plastic sheet material the vent area required is appreciably larger than that required for the filter sheet described in connection with FIGS. 1-3, and for a satisfactory result, should be approximately 3 square inches for an 8 oz. container. For this reason and because of the relative cost, the treated filter paper is preferable.

In FIG. 4 a modification is shown in which the lid is designated as 10 and the peripheral rim portion is of generally U-shape in cross section and is designated 16'. In this embodiment, the lid is shown secured to a cup designated 11 having a beaded rim 13' but no internal recess such as the recess 12 of FIG. 2. Therefore, in the embodiment of FIG. 4 the lid depends for its sealing engagement upon a snug fit within the body of the cup 11' and upon tight fitting engagement of the rim 13 by the U-shaped skirt 16. Accordingly, in this embodiment the lid does not have a bead such as 15 of FIG. 2, and the end Wall 14' of the lid is disposed closely adjacent the U- shaped peripheral edge 16 with the offset portion 17 about level with the top thereof. Other parts of the lid 10 are identical with the structure previously described in connection with FIG. 2 and are identified with corresponding numerals to which the prime suffix has been affixed, and therefore will need no further description.

In FIGS. 5 and 6 we have shown a modified form of the invention in which the lid is designated in general as and the container is designated in general as 3 1 and is of the same type as that above described in connection with FIG. 2. The lid comprises an end wall 32 and a peripheral rim portion 33 serving to hold the lid in sealing engagement with the mouth 34 of the container 31 in a manner similar to that heretofore described with respect to FIG. 2. In this embodiment, the lid 30 may be conveniently made of either plastic or paper material and the end wall is provided with an opening 35, over which a piece of sheet material 36 of the character above described extends so as to cover the hole 35 and its marginal edges 7 are secured to the end wall 32 by adhesive or sealing to the interior of the end wall 32 throughout the zone 37 surrounding said hole. In some respects this embodiment is not'as desirable as in previous embodiments because the vent area is not protected by an offset portion of the end wall and is subject to possible damage if roughly handled. However, it will be obvious that the lid will function satisfactorily in normal use and has manufacturing advantages for certain uses.

In FIG. 7 an embodiment is shown in which the lid is designated as 40 and is made of paper board or the like material, comprising an end wall 41 and a peripheral rim portion 42 which is of generally cylindrical form; the end wall and its peripheral rim being secured together by a joint 43 in accordance with conventional practice. The end wall 41 is provided with a hole or vent opening 44 which is covered by a piece of sheet material 45 of the character above described, to thereby provide a vent area for the lid which is pervious to vapors and impervious to liquids. The lid is shown in sealing engagement with a cylindrical container designated in general as 46, the lip of which is frictionally tightly engaged by the peripheral rim portion 42.

In FIG. 8 a further embodiment is shown in which a container, designated generally as 50, is closed by a disc type lid 51, whose peripheral edge 52 is tightly engaged in the internal recess 53. The disc lid 51 is provided with a vent hole 54 which is covered by a piece of sheet material 55 which is secured in liquid-tight engagement with the interior of the disc lid 51 surrounding said opening. The sheet material 55 being of the nature and character above described, thereby serves to provide a vent area pervious to vapors and impervious to liquids.

Having thus described our invention with particularity with reference to preferred embodiments of the same, and having referred to some of the possible modifications thereof, it will be obvious to those skilled in the art a ter understanding our invention, that other changes and modifications may be made therein without departing from the spirit and scope of the invention, and we aim in the appended claims to cover such changes and modifications as are within the scope of the invention.

What we claim is:

l. A flexible container lid for use on a container of the type having a mouth defined by a beaded lip and an internal peripheral groove below said lip; said lid comprising an end wall and a peripheral rim portion constituted by relatively thin plastic material, said end wall being provided with an outwardly offset portion defining an interior recess of substantial size and a surrounding boundary of said end Wall, said peripheral rim portion being provided with a bead adapted for interfitting engagement in the groove of said container and with a skirt generally U-shaped in cross section adapted for locking engagement with the beaded lip of said container, a separate sheet of filter paper impregnated with a Water repellent and extending over said recess with its peripheral margin adhesively secured in liquid-tight engagement to said surrounding boundary and providing conjointly with said offset portion a chamber, said impregnated filter paper being pervious to vapors at relatively low temperatures generated by liquids up to about 200 F. and impervious to potable liquids having a temperature of at least 180 F., said offset portion having a relatively small hole placing said chamber in communication with atmosphere. 7

2. A flexible container lid for use on a container of the type having a mouth defined by a beaded lip; said lid comprising an end wall and a peripheral rirn portion constituted by relatively thin plastic material, said end wall being provided with an outwardly offset portion defining an interior recess of substantial size and a surrounding boundary of said end wall, said peripheral rim portion being provided with an upwardly extending skirt generally U-shaped in cross section adapted for frictional sealing engagement with the beaded lip of said container, a separate sheet of filter paper impregnated with a water repellent and extending over said recess with its peripheral margin adhesively secured in liquid-tight engagement to said surrounding boundary and providing conjointly with said oflset portion a chamber, said impregnated filter paper being pervious to vapors at relatively low temperatures generated by liquids up to about 200 F. and impervious to potable liquids having a temperature of at least 180 F., said ofiset portion having a relatively small hole placing said chamber in communication with atmosphere.

3. A flexible container lid as set forth in claim 2 in which said sheet of filter paper has a thickness of the order of .002".008", said sheet of filter paper having an exposed porous area of the order of at least 1 square inch in which pores not exceeding .0005 in diameter are disposed throughout.

4. A flexible container lid for use on a container of the type having a mouth defined by a beaded lip for liquid tight engagement with said lid; said lid comprising a peripheral rim portion including a skirt generally U- shaped in cross section adapted for liquid-tight engagement with said beaded lip and an end wall having a boundary defining vent opening of substantial size extending through said end wall in a direction from the interior face to the exterior face thereof, and a separate sheet of filter paper covering said vent opening and secured in fluid-tight engagement to a relatively fiat surface on the interior face of said end Wall forming the boundary of said vent opening, said filter paper being impregnated with a Water repellent capable of withstanding a temperature of at least 180 F. and having a thickness of the order of .00 .008, said sheet. of filter paper having an exposed porous area of the order of at least 1 square inch in which pores not exceeding .0005" in diameter are disposed throughout.

References Cited in the file of this patent UNITED STATES PATENTS 1,550,302 Zarobsky Aug. 18, .1925

2,005,349 Raney June 18, 1935 2,301,212 Jones Nov. 10, 1942 FOREIGN PATENTS 441,519 Great Britain Jan. 21, 1936 R14,806 Germany Mar. 15, 1956

Claims (1)

1. A FLEXIBLE CONTAINER LID FOR USE ON A CONTAINER OF THE TYPE HAVING A MOUTH DEFINED BY A BEADED LIP AND AN INTERNAL PERIPHERAL GROOVE BELOW SAID LIP; SAID LID COMPRISING AN END WALL AND A PERIPHERAL RIM PORTION CONSTITUTED BY RELATIVELY THIN PLASTIC MATERIAL, SAID END WALL BEING PROVIDED WITH AN OUTWARDLY OFFSET PORTION DEFINING AN INTERIOR RECESS OF SUBSTANTIAL SIZE AND A SURROUNDING BOUNDARY OF SAID END WALL, SAID PERIPHERAL RIM PORTION BEING PROVIDED WITH A BEAD ADAPTED FOR INTERFITTING ENGAGEMENT IN THE GROOVE OF SAID CONTAINER AND WITH A SKIRT GENERALLY U-SHAPED IN CROSS SECTION ADAPTED FOR LOCKING ENGAGEMENT WITH THE BEADED LIP OF SAID CON-
US3083861A 1960-05-27 1960-05-27 Vented container closure lids Expired - Lifetime US3083861A (en)

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US3083861A US3083861A (en) 1960-05-27 1960-05-27 Vented container closure lids

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US3083861A US3083861A (en) 1960-05-27 1960-05-27 Vented container closure lids
GB1849561A GB917998A (en) 1960-05-27 1961-05-23 Vented container closure lids

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US3302822A (en) * 1962-10-24 1967-02-07 Illinois Tool Works Pressure equalizing package
US3335897A (en) * 1964-05-05 1967-08-15 Continental Can Co Closure and method of forming same
US3805991A (en) * 1967-09-11 1974-04-23 G Cheladze Lid construction with non-leak vent
US4461420A (en) * 1982-03-05 1984-07-24 Cod Inter Techniques Sa Ventable package cover
US4491224A (en) * 1982-03-05 1985-01-01 C O D Inter Techniques Sa Weldable tear-off capping film for sealing packages
US4512498A (en) * 1983-10-21 1985-04-23 Karl Liebinger Medizintechnik Gmbh & Co. Sterilizable container
US4785764A (en) * 1985-06-06 1988-11-22 Zucher Beuteltuchfabrik AG Apparatus for receiving and storing useful organisms and process for the production thereof
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US6054153A (en) * 1998-04-03 2000-04-25 Tenneco Packaging Inc. Modified atmosphere package with accelerated reduction of oxygen level in meat compartment
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USD476891S1 (en) 2001-12-20 2003-07-08 Solo Cup Company Container lid
USD477223S1 (en) 2001-08-06 2003-07-15 Solo Cup Company Reclosable container lid
USD478006S1 (en) 2001-08-06 2003-08-05 Solo Cup Company Reclosable container lid
US20030197012A1 (en) * 2001-08-06 2003-10-23 Smith Stephen Alan Reclosable container lid
US6644490B2 (en) 2001-05-17 2003-11-11 Solo Cup Company Lid
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USD485758S1 (en) 2002-06-07 2004-01-27 Solo Cup Company Container lid
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US20100133269A1 (en) * 2005-06-24 2010-06-03 Salvatore Moricca Method and apparatus for isolating material from its processing environment
US20100175850A1 (en) * 2009-01-09 2010-07-15 Kaucic Edward M Relief Vent for a Hot Fill Fluid Container
US20100183773A1 (en) * 2009-01-19 2010-07-22 Conagra Foods Rdm, Inc. Package assembly
US8087539B2 (en) 2006-10-03 2012-01-03 Stull Technologies, Inc. Easily removable multi-paneled locking cover
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US20130248481A1 (en) * 2010-11-30 2013-09-26 Huhtamaki Oyj Lid made of fibrous material
US20150144646A1 (en) * 2013-11-22 2015-05-28 Pavel Savenok Hot beverage container lid-insert constructions
US20160167863A1 (en) * 2014-12-12 2016-06-16 Barenthal North America, Inc. Vacuum sealing lid for food storage container

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Cited By (74)

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US3302822A (en) * 1962-10-24 1967-02-07 Illinois Tool Works Pressure equalizing package
US3335897A (en) * 1964-05-05 1967-08-15 Continental Can Co Closure and method of forming same
US3805991A (en) * 1967-09-11 1974-04-23 G Cheladze Lid construction with non-leak vent
US4491224A (en) * 1982-03-05 1985-01-01 C O D Inter Techniques Sa Weldable tear-off capping film for sealing packages
US4461420A (en) * 1982-03-05 1984-07-24 Cod Inter Techniques Sa Ventable package cover
US4512498A (en) * 1983-10-21 1985-04-23 Karl Liebinger Medizintechnik Gmbh & Co. Sterilizable container
US4785764A (en) * 1985-06-06 1988-11-22 Zucher Beuteltuchfabrik AG Apparatus for receiving and storing useful organisms and process for the production thereof
US5584409A (en) * 1995-09-18 1996-12-17 Chemberlen; Christopher H. One direction ventilation valves
US5901867A (en) * 1995-10-25 1999-05-11 Roberts Polypro, Inc. Ventable cap
US5730311A (en) * 1995-11-13 1998-03-24 Tenneco Packaging Inc. Controlled atmosphere package
US6183790B1 (en) 1996-04-03 2001-02-06 Pactiv Corporation Modified atmosphere package
US20040007553A1 (en) * 1997-09-19 2004-01-15 Smolko Daniel D. Pervaporatively cooled containers
US20050263479A1 (en) * 1997-09-19 2005-12-01 Advanced Porous Technologies, Llc Vented closures for containers
US20040173556A1 (en) * 1997-09-19 2004-09-09 Smolko Daniel D. Vented closures for containers
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US20050263480A1 (en) * 1997-09-19 2005-12-01 Advanced Porous Technologies, Llc Vented closures for containers
US6132781A (en) * 1998-04-03 2000-10-17 Pactiv Corporation Modified atmosphere package with accelerated reduction of oxygen level in meat compartment
US6054153A (en) * 1998-04-03 2000-04-25 Tenneco Packaging Inc. Modified atmosphere package with accelerated reduction of oxygen level in meat compartment
US6221411B1 (en) 1998-09-11 2001-04-24 Jescorp, Inc. Meat packaging apparatus and method
US6494023B2 (en) 1999-06-11 2002-12-17 Pactiv Corporation Apparatus for inserting an oxygen scavenger into a modified atmosphere package
US6321509B1 (en) 1999-06-11 2001-11-27 Pactiv Corporation Method and apparatus for inserting an oxygen scavenger into a modified atmosphere package
US6827232B1 (en) * 1999-09-16 2004-12-07 Tokai Kogyo Co., Ltd. Resin case providing compatibility between air permeability and water proofing property, and mold for producing such case
US7442334B2 (en) 1999-09-16 2008-10-28 Tokai Kogyo Co., Ltd. Resin case in which gas-permeability and waterproof quality are compatible, and die for manufacturing such case
US20050046081A1 (en) * 1999-09-16 2005-03-03 Tokai Koygo Co., Ltd. Resin case in which gas-permeability and waterproof quality are compatible, and die for manufacturing such case
US6644490B2 (en) 2001-05-17 2003-11-11 Solo Cup Company Lid
US6679397B2 (en) 2001-08-06 2004-01-20 Solo Cup Company Container lid with closure member
US6732875B2 (en) 2001-08-06 2004-05-11 Solo Cup Company Reclosable container lid
US20040089662A1 (en) * 2001-08-06 2004-05-13 Smith Stephen Alan Reclosable container lid
US20040035868A1 (en) * 2001-08-06 2004-02-26 Smith Stephen Alan Reclosable container lid
US20030197012A1 (en) * 2001-08-06 2003-10-23 Smith Stephen Alan Reclosable container lid
US20040256387A1 (en) * 2001-08-06 2004-12-23 Smith Stephen Alan Container lid with closure member
US20080128417A1 (en) * 2001-08-06 2008-06-05 Solo Cup Operating Corporation Reclosable Container Lid
US20080029512A1 (en) * 2001-08-06 2008-02-07 Solo Cup Operating Corporation Reclosable Container Lid
US20050035124A1 (en) * 2001-08-06 2005-02-17 Smith Stephen Alan Container lid with closure member
US7134566B2 (en) 2001-08-06 2006-11-14 Solo Cup Company Container lid with closure member
US7246715B2 (en) 2001-08-06 2007-07-24 Solo Cup Operating Corporation Reclosable container lid
US20050127075A1 (en) * 2001-08-06 2005-06-16 Smith Stephen A. Reclosable container lid
USD478006S1 (en) 2001-08-06 2003-08-05 Solo Cup Company Reclosable container lid
USD477223S1 (en) 2001-08-06 2003-07-15 Solo Cup Company Reclosable container lid
US20110089174A1 (en) * 2001-08-06 2011-04-21 Solo Cup Operating Corporation Reclosable container lid
US20060000832A1 (en) * 2001-08-06 2006-01-05 Smith Stephen A Reclosable container lid
US20070131692A1 (en) * 2001-08-06 2007-06-14 Solo Cup Operating Corporation Container Lid With Closure Member
US7156251B2 (en) 2001-08-06 2007-01-02 Solo Cup Operating Corporation Reclosable container lid
US7131551B2 (en) 2001-08-06 2006-11-07 Solo Cup Company Container lid with closure member
US7731047B2 (en) 2001-08-06 2010-06-08 Solo Cup Operating Corporation Reclosable container lid with sliding element
US7159732B2 (en) 2001-08-06 2007-01-09 Solo Cup Operating Corporation Reclosable container lid
US20030116568A1 (en) * 2001-12-20 2003-06-26 Clarke Brian Norman Lid
US7063224B2 (en) 2001-12-20 2006-06-20 Solo Cup Operating Corporation Lid with drink opening
US6874649B2 (en) 2001-12-20 2005-04-05 Solo Cup Company Lid
US20050155969A1 (en) * 2001-12-20 2005-07-21 Clarke Brian N. Lid
USD476891S1 (en) 2001-12-20 2003-07-08 Solo Cup Company Container lid
USD485758S1 (en) 2002-06-07 2004-01-27 Solo Cup Company Container lid
US20040265447A1 (en) * 2003-06-26 2004-12-30 Raniwala Subodh K. Hot fill container and closure and associated method
US7621412B2 (en) * 2003-06-26 2009-11-24 Stokely-Van Camp, Inc. Hot fill container and closure and associated method
US8234843B2 (en) 2003-06-26 2012-08-07 Stokley-Van Camp, Inc. Hot fill container and closure and associated method
US20100071319A1 (en) * 2003-06-26 2010-03-25 Stokely-Van Camp, Inc. Hot fill container and closure and associated method
US20050000963A1 (en) * 2003-07-01 2005-01-06 Cautereels Victor J.J. Cheese server
US7364048B2 (en) * 2003-07-01 2008-04-29 Dart Industries Inc. Cheese server
US20100133269A1 (en) * 2005-06-24 2010-06-03 Salvatore Moricca Method and apparatus for isolating material from its processing environment
US8662338B2 (en) * 2005-06-24 2014-03-04 Australian Nuclear Science And Technology Organisation Container for receiving a substance including nuclear material
US20080169287A1 (en) * 2006-10-03 2008-07-17 Stull Technologies, Inc. Removable locking container cover with slotted outer skirt
US8038026B2 (en) 2006-10-03 2011-10-18 Stull Technologies, Inc. Removable locking container cover with slotted outer skirt
US8087539B2 (en) 2006-10-03 2012-01-03 Stull Technologies, Inc. Easily removable multi-paneled locking cover
US8020723B2 (en) * 2006-11-17 2011-09-20 Stull Technologies, Inc. Removable locking container lid with outer skirt
US20080116202A1 (en) * 2006-11-17 2008-05-22 Stull Technologies, Inc. Removable locking container lid with outer skirt
US20100175850A1 (en) * 2009-01-09 2010-07-15 Kaucic Edward M Relief Vent for a Hot Fill Fluid Container
US20100183773A1 (en) * 2009-01-19 2010-07-22 Conagra Foods Rdm, Inc. Package assembly
US20130129874A1 (en) * 2010-07-30 2013-05-23 General Mills, Inc. Package with closure, aperture, and insert
US20130248481A1 (en) * 2010-11-30 2013-09-26 Huhtamaki Oyj Lid made of fibrous material
US20120305518A1 (en) * 2011-06-01 2012-12-06 The Coca-Cola Company Hot fill containers and methods
US9169047B2 (en) * 2013-11-22 2015-10-27 Pavel Savenok Hot beverage container lid-insert constructions
US20150144646A1 (en) * 2013-11-22 2015-05-28 Pavel Savenok Hot beverage container lid-insert constructions
US9725224B2 (en) * 2014-12-12 2017-08-08 Barenthal North America, Inc. Vacuum sealing lid for food storage container
US20160167863A1 (en) * 2014-12-12 2016-06-16 Barenthal North America, Inc. Vacuum sealing lid for food storage container

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