US3676159A - Thermoformed reusable package having a reclosable lid - Google Patents

Thermoformed reusable package having a reclosable lid Download PDF

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US3676159A
US3676159A US3676159DA US3676159A US 3676159 A US3676159 A US 3676159A US 3676159D A US3676159D A US 3676159DA US 3676159 A US3676159 A US 3676159A
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Prior art keywords
lid
package
tray
container
flange
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Derek Fallowfield
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WR Grace and Co
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WR Grace and Co
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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
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/34Trays or like shallow containers
    • B65D1/36Trays or like shallow containers with moulded compartments or partitions
    • 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
    • B65D43/0214Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0216Removable lids or covers without integral tamper element secured only by friction or gravity inside a peripheral U-shaped channel in 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
    • B65D2543/0012Shape of the outer periphery having straight sides, e.g. with curved corners
    • B65D2543/00175Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond
    • B65D2543/00194Shape of the outer periphery having straight sides, e.g. with curved corners four straight sides, e.g. trapezium or diamond square or rectangular
    • 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
    • B65D2543/00342Central part of the lid
    • B65D2543/00398Reinforcing ribs in the central part of the closure
    • 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
    • B65D2543/00453Contact between the container and the lid in a peripheral U-shaped channel of the container
    • B65D2543/00472Skirt
    • 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
    • B65D2543/00537Contact 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
    • B65D2543/00546NO 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
    • B65D2543/00592Snapping 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
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • 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
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/00731Groove 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
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00796Totality
    • 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
    • B65D2543/00824Means for facilitating removing of the closure
    • B65D2543/00833Integral tabs, tongues, handles or similar
    • B65D2543/00842Integral tabs, tongues, handles or similar outside of the lid
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/80Packaging reuse or recycling, e.g. of multilayer packaging
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00Special receptacle or package
    • Y10S206/822Special shape

Abstract

THIS INVENTION COMPRISES A THERMOFORMED REUSABLE PACKAGE HAVING A RECLOSABLE LID. THE PACKAGE IS FORMED TO ACCEPT A SET OF SHAPED FOOD ITEMS. THE LID IS ALSO SHAPED TO THE SHAPE OF THE FOOD ITEMS EXCEPT FOR AN OPAQUE AREA OF THE LID WHICH CARRIES DESCRIPTIVE INFORMATION.

Description

July 11, 1972 D. FALLOWFIELD 3,676,159

THERMOFORMED REUSABLE PACKAGE HAVING A RECLOSABLE LID Filed April 27, 1970 2 Sheets-Sheet 1 INVENTOR DEREK 5U. OWFIELD BY Wm. 9.

ATTOR EY y 11, 1972 D. FALLOWFIELD 3,676,159

THERMOFORMED REUSABLE PACKAGE HAVING A RECLOSABLE LID Filed April 27, 1970 2 Sheets-Sheet 2 United States Patent O 3,676,159 THERMOFORMED REUSABLE PACKAGE HAVING A RECLOSABLE LID Derek Fallowfield, Oakville, Ontario, Canada, assignor to W. R. Grace & 00., Duncan, S.C. Filed Apr. 27, 1970, Ser. No. 32,227 Int. Cl. B65b 25/06 US. Cl. 99-174 6 Claims ABSTRACT OF THE DISCLOSURE This invention comprises a thermoformed reusable package having a reclosable lid. The package is formed to accept a set of shaped food items. The lid is also shaped to the shape of the food items except for an opaque area of the lid which carries descriptive information.

BACKGROUND OF THE INVENTION This invention relates to a shaped reclosable and reusable package. A tray and lid are shaped so as to contact the contained item and prevent the formation of condensation on the interior container surfaces which would then shield the contained item from view.

It is desirable in packaging many foods to have a container which can be reclosed so as to preserve that portion which is not being used. This type of a container provides for a faster opening and resealing,.and overcomes the disadvantage of repacking an unused portion for further storage. The advantages are numerous. The cost of providing extra wrap material is obviated; and in the use of the same container, any information on the container is preserved. This information may be instructions for use of the contents, critical dates for disposal, or just what brand and product it is. However, although the containers of the present invention are of a reclosable type, a further and distinct main advantage of these containers is that articles which must undergo refrigeration may be packaged in clear see-through packages without the formation of a vision shielding layer of condensation on the interior surfaces of the tray or lid. By forming the container tray and lid to the same shape as the contained items, the items are always in an intimate contact with the container internal surfaces inhibiting the formation of any vision shielding condensation. The advantage in commerce is a clear pleasing appearance of the contained food item.

The prior art is well illustrated by US. Pats. 3,082,903 and 3,111,220. US. Pat. 3,082,903 shows a hinged, onepiece reclosable container. The shape is not of a nature to accept any particular article. US. Pat. 3,111,220 discloses a similar one-piece hinged container, but having shaped recesses in the base. The present invention is directed to a two-piece reclosable container wherein the body and lid are of substantially the same shape as the items which it is to contain. And in a particular embodiment, it is directed to a container for sausage, frankfurters, luncheon meat or other food stuffs wherein, if the contained item is not in an intimate contact with the interior package surface, an unappealing condensation forms, shielding the packaged item from view. It is there- "ice fore necessary for these items which must be refrigerated that the item be in intimate contact with the interior package wall wherever the package is transparent. It is further a preferred embodiment of the present invention also to coat the interior surfaces with a wetting agent. The containers of the cited patents, although being of the reclosable type, are not useful for packaging items which must undergo refrigeration, and yet be appealing. In the prior art packages, a fog type of condensation will form on the inner package surface shielding the contents from consumer examination.

It is an object of this invention to provide a refrigerable, reclosable and resusable container.

It is further an object of this invention to provide a transparent container which, when filled with moist items, will, on refrigeration, remain clear for efficient visual inspection.

It is also an object of this invention to provide a reclosable container wherein the contained item is in an intimate contact with the interior surfaces of the container.

SUMMARY OF THE INVENTION This invention comprises a refrigerable reclosable container having a tray portion and a lid portion; these tray and lid portions being shaped to accept and remain in contact with the items which are being packaged. The invention further comprises the coating of the interior of this container with a wetting agent to further prevent the formation of a vision inhibiting condensation layer on the internal surfaces.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the container with the lid in place on the container.

FIG. 2 is a plan view of the container and lid of FIG. '1.

FIG. 3 is a cross-sectional view of the package of FIG. 1, with a reclosable wedge sealing means.

FIG. 4 is a cross-sectional view of the package of FIG. 1, with a rib and socket sealing means.

FIG. 5 is a perspective view of the container with the lid in place, the lid having, a flat opaque space for decoration or descriptive information.

DETAILED DESCRIPTION OF THE INVENTION More specifically, and in a preferred embodiment, this invention is directed to a package for a plurality of what are commonly designated as frankfurters or sausages.

FIG. 1 is a perspective view of the food package having a shaped tray portion 10 and a shaped lid portion 20. The tray portion 10 comprises in this view substantially vertical sides 18 and 13, with side 18 being upwardly and outwardly extending from the base and terminating in a flange area 17. Side 13 comprises an upwardly and outwardly extending section having a series of indentations 15 which serve to form compartments on the inside of the package. These indentations 15 connect with the base upwardly protruding indentation ridges 12 of FIG. 2. The tray wall of side 13 also terminates in flange area 17. The lid 20 comprises a horizontal flange 21 carrying tab 27 for convenient opening. Extending from the lid flange 21 is a substantially vertical sidewall 23 connecting recessed lid surface 22. Lid surface 22 comprises shoulders 24,

raised portions 25 and separating sections 26. The separating sections 26 of the lid are in alignment with the tray sidewall indentations 15 and serve to also form compartments within the package. In this preferred embodiment, the compartments formed within the package readily receive from to frankfurters or sausages, hold them in a set orientation, and maintain them in contact with the internal surfaces of the container package.

FIG. 2 is a plan view of the internal surfaces of the tray and lid. The tray 10 consists of base portion 11, sidewalls 13, 14, 18 and 19 and flange area 17. The base surface 11 carries upwardly protruding indentation ridges 12 which extend from sidewall 13 to sidewall 14. These indentation ridges 12 at sidewalls 13 and 14 meet the inwardly protruding indentations 15. These indentations further serve to form the compartments for holding the frankfurters or sausages. The sidewalls 13 and 14 at a point immediately below the flange area 17 have ledges 16 which serve to give added support to the lid when it is being pressed into place and when in place. When in a closed condition, ledges 16 of the tray contact ledges 24 of the lid. The lid 20 in this view comprises the flange 21 carrying tab 27, and the base surface 22 with portions 25 and separating sections 26. In this view, since the internal surface of the lid is exposed, the portions 25 extend downwardly and the separating sections 26 extend upwardly. These sections 26 terminate in ledges 24.

FIGS. 3 and 4 are cross-sectional elevational views of the package of FIG. 1 with the lid 20 in place on the tray 10. The tray in each embodiment comprises base 11 with upwardly extending indentations 12, and sidewalls 18 and 19 terminating in the flange area 17. The lid in each figure comprises the flange 21, sidewall 23 and the lid surface 22 which consists of the raised portions 25 and separating sections 26. Principally demonstrated in these figures are reclosable sealing means. In FIG. 3, the flange area 17 of the tray comprises the horizontal peripheral tray flange lying below and coinciding with lid flange 21, a downwardly and outwardly extending wall 28 terminating in a ledge 27. The lid is of a dimension such that sidewall 23 contacts wall 28 and ledge 27 in a nesting, camming fit. FIG. 4 sets out a further reclosable sealing means. In this embodiment, the lid flange 21 carries rib 30. This rib friction fits into socket groove 29 in the flange area 17 of the tray. Further, in the use of either reclosable sealing means, the tray and lid flanges can be coated with a tacky non-curing adhesive which will provide an additional force for maintaining the lid 20 on tray 10.

FIG. 5 is a perspective view of a container with the lid 20 in place forming a complete package. In this embodiment, the lid 20 has a flattened area 31 which is opaque for carrying a logo, instructions for product use or for pricing data. However, it is necessary that any package surface which is not in a substantial contact with the packaged item, in this instance frankfurter or sausage pieces, be opaque. This is required since, if a transparent area is not in a substantial contact with the packaged item, a vision inhibiting and unappealing condensation layer will form on the internal package surfaces. Where the package is opaque, as in area 31, any condensation formation can not be visually detected. Further, in a preferred embodiment, the internal surfaces are also coated with a wetting agent. Suitable wetting agents are ethoxylated aliphatic alcohols of from 10 to 18 carbon atoms. A preferred wetting agent is lauroyl alcohol which has been ethoxylated with from 2 to 6 moles of ethylene oxide.

The package of the present invention is most readily produced by a therrnoform molding technique. The tray portion and the lid portion are each separately made. The specific technique is preferably that of vacuum forming a heated plastic sheet material. Although any transparent thermoplastic material can be used, it is preferred to construct the packages of an oriented polystyrene. This mate rial is highly transparent, self-sustaining, relatively rigid, but yet resilient. If distorted, it can be easily pressed back into its original form. The thicknesses of the original material and of the end package are dependent on the packaging requirements. It is preferred that the final package be of a thickness from about 4 mils to about 15 mils. Further, for some packaging requirements, the lid flange and tray flange area may be of a greater thickness than the other parts of the package. In general, such variants are within the skill of those in the art and are encompassed by the present package.

What is claimed is:

1. A transparent reclosable package comprising:

(a) a tray comprising:

(1) a bottom surface divided into a series of sections by upward indentations therein, said upward indentations being parallel one to the other and extending across said bottom surface;

(2) a first pair of side surfaces uprising from opposed ends of said bottom surface, said opposed ends being those ends of the bottom surface in which said indentations terminate, and said side surfaces having a series of inward indentations corresponding to and connecting with said indentations in said bottom surface;

(3) a second pair of side surfaces rising from opposed sides of said bottom surface and connecting with the side surfaces of said first pair to form four corners in said tray; and

(4) a horizontal flange extending around and outwardly from the upper perimeter defined by the upper edges of said first and second pair of side surfaces; and

(b) alid comprising:

(1) a peripheral horizontal flange which is coextensive with the horizontal flange of said tray;

(2) a central area recessed from said peripheral lid flange and having a series of raised sections in alignment with the series of corresponding sections in the bottom surface of said tray;

(3) a sidewall connecting said central area and said lid flange; and

(4) a planar opaque portion tangent to the raised sections in said central area; and

(c) means for reclosing said lid to the tray.

2. The transparent container of claim 1 wherein the reclosing means comprises:

(i) a lid support ledge, the upper edges of said first pair of side surfaces terminating in said ledge;

(ii) a substantially vertical peripheral sidewall extending downwardly and outwardly from said horizontal tray flange and terminating in said lid support ledge; and

(iii) said lid sidewall extending downwardly and outwardly from said lid horizontal flange whereby said lid sidewall will have a nesting, camming fit against said tray peripheral sidewall when said lid is closed on said tray.

3. The transparent package of claim 1 wherein the reclosing means comprises:

(i) a continuous socket groove in said horizontal tray flange; and

(ii) a continuous protruding rib on said horizontal lid flange whereby on placing said lid on said tray and exerting pressure, said rib enters said socket groove and is maintained in said groove.

4. The transparent package of claim 1 wherein both the tray and lid are constructed of oriented polystyrene.

5. The transparent package of claim 1 wherein said indentations are formed to maintain a series of frankfurter shaped items in a pre-set orientation.

6. The transparent package of claim 1 wherein the internal surfaces of said lid and said tray are coated with an ethoxylated lauryl alcohol wetting agent further preventing the formation of vision shielding condensation.

(References on following page) References Cited UNITED STATES PATENTS Al-Roy 22060 Goller et a1. 99-171 (LP) X Ringlen 22060 Hackhel et 'al. 99l71 CA UX Hein et a1 99-174 Eastes 99-171 (CA) X Thanhauser et a1 22060 Yates, Jr 22060 Rich et a1 99174 UX Whiteford 99177 UX Bennett et'al. 99171 ('R) X FRANK W. LUTTER, Primary Examiner S. L. WEINSTEIN, Assistant Examiner US. Cl. X.R.

99171 S, 171 CT, 171 MP, 171 CA; 22060; 206 45.34; 229-43

US3676159D 1970-04-27 1970-04-27 Thermoformed reusable package having a reclosable lid Expired - Lifetime US3676159A (en)

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US3222770A true 1970-04-27 1970-04-27

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US3676159A true US3676159A (en) 1972-07-11

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US3676159D Expired - Lifetime US3676159A (en) 1970-04-27 1970-04-27 Thermoformed reusable package having a reclosable lid

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BE (1) BE761010A (en)
BR (1) BR7102460D0 (en)
CA (1) CA942719A (en)
DE (1) DE2063404A1 (en)
FR (1) FR2086376A1 (en)
NL (1) NL7100107A (en)
ZA (1) ZA7008488B (en)

Cited By (53)

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Publication number Priority date Publication date Assignee Title
US3876133A (en) * 1973-05-10 1975-04-08 Phillips Petroleum Co Reclosable slide-on cover for a rectangularly flanged container
US3903309A (en) * 1970-07-06 1975-09-02 Mahaffy & Harder Eng Co Self-leak indicating package
US3972155A (en) * 1969-09-24 1976-08-03 Mahaffy & Harder Engineering Company Packaging techniques for semi-rigid packages
DE2704166A1 (en) * 1976-03-09 1977-09-15 Dart Ind Inc Storage tanks for sausages or similar foods
US4246288A (en) * 1979-08-09 1981-01-20 W. R. Grace & Co. Reclosable package
US4720014A (en) * 1985-04-30 1988-01-19 Sanford Redmond Compact package for spreadable products
US4774063A (en) * 1981-04-20 1988-09-27 Mdt Biologic Company Container for use with sterilizers
US4807747A (en) * 1987-09-16 1989-02-28 Champion Spark Plug Company Package structure for spark plugs
US4831840A (en) * 1987-09-10 1989-05-23 Fletcher Charles J Ice maker with covered ice tray
US4916921A (en) * 1987-09-10 1990-04-17 Fletcher Charles J Ice maker with vertical cooling member
US4917245A (en) * 1989-09-19 1990-04-17 All-Prime Enterprise Corp. Structure of vacuum forming plastic packing case
US5058761A (en) * 1990-09-10 1991-10-22 Bryan Foods, Inc. Reclosable package and a base portion of the package
US5074416A (en) * 1990-12-14 1991-12-24 Oscar Mayer Foods Corporation Package with recloseable board seal
US5163269A (en) * 1990-09-10 1992-11-17 Bryan Foods, Inc. Method for making reclosable package
US5167974A (en) * 1987-11-30 1992-12-01 Oscar Mayer Foods Corporation Vacuum packaging with hermetic reclosure
GB2258220A (en) * 1991-07-31 1993-02-03 Rubbermaid Inc Recycle trash container
US5485919A (en) * 1993-02-22 1996-01-23 Nantucket Industries, Inc. Clamshell package and packaging system
US5520939A (en) * 1994-03-31 1996-05-28 Oscar Mayer Foods Corporation Rigid reclosable bacon package
US5770249A (en) * 1995-06-12 1998-06-23 Sara Lee Corporation Meat product package and method of forming same
US5795604A (en) * 1994-03-31 1998-08-18 Kraft Foods, Inc. Rigid reclosable bacon package
US5820904A (en) * 1995-06-12 1998-10-13 Sara Lee Corporation Meat product package and method of forming same
WO1999054214A1 (en) * 1998-04-23 1999-10-28 Box-Ease International, Inc. Sealable containers and method of forming containers
US6112928A (en) * 1995-07-28 2000-09-05 Box Ease International Foldable self-standing container with method of manufacture and bulk dispenser
US6231906B1 (en) * 1998-11-17 2001-05-15 Cake Box Bakeries, Inc. Packaging system for tart shells
US6325239B2 (en) 1999-04-22 2001-12-04 The Procter & Gamble Company Stackable, self-supporting container with sliding mechanical closure
US20020119223A1 (en) * 2000-05-08 2002-08-29 The Procter & Gamble Company Container bottom and methods
US6446546B1 (en) 2000-10-17 2002-09-10 Glen Hodson Marinading and storage container
US20030197021A1 (en) * 2002-04-23 2003-10-23 Hsin-Hung Chou Food container sealing structure
US20060016821A1 (en) * 2004-07-21 2006-01-26 I-Sheng Liu Packaging container with flared peripheral clearance
US20060016718A1 (en) * 2004-07-20 2006-01-26 Buss Michael A System and a method for ultrasonically welding a tether to a blister pack
US7017776B1 (en) * 2000-01-11 2006-03-28 The Procter & Gamble Company Slidably sealable container having an auxiliary track
US20060246185A1 (en) * 2005-05-02 2006-11-02 Conagra Foods Packaged Foods Co., Inc. Easy-open sausage package
WO2007145525A1 (en) * 2006-06-16 2007-12-21 Easycup International Ltd Portion package
US20080116099A1 (en) * 2006-11-22 2008-05-22 Eduardo Garcia Tray
USD615774S1 (en) 2009-07-31 2010-05-18 Sun Optics, Inc. Eyeglass display stand
USD617097S1 (en) 2009-09-15 2010-06-08 Sun Optics, Inc. Eyeglass case
USD617554S1 (en) 2009-09-15 2010-06-15 Sun Optics, Inc. Eyeglass case
USD623407S1 (en) 2009-09-15 2010-09-14 Sun Optics, Inc. Eyeglass case
US20100230322A1 (en) * 2009-03-10 2010-09-16 David Nicholson Sausage Tray
US20120005992A1 (en) * 2010-07-09 2012-01-12 Waldrop Christopher N Packaging tray and method of use
USD663971S1 (en) 2005-04-08 2012-07-24 Sun Optics, Inc. Eyeglass display
US20140322396A1 (en) * 2013-04-30 2014-10-30 J.R. Simplot Company System and method for packaging a frozen product
USD734169S1 (en) * 2013-10-15 2015-07-14 Printpack Illinois, Inc. Cigar package
USD734170S1 (en) * 2013-10-15 2015-07-14 Printpack Illinois, Inc. Cigar package
USD734141S1 (en) * 2013-07-29 2015-07-14 Ronald Smith Package for hot dogs or the like
USD752995S1 (en) * 2013-08-20 2016-04-05 Ronald Smith Packaging for hot dogs
USD754005S1 (en) * 2014-06-02 2016-04-19 Beaver Street Fisheries, Inc. Food packaging
US20160198990A1 (en) * 2015-01-13 2016-07-14 Boca Dental Supply, LLC Sterile fluid collection tube package
US20170253362A1 (en) * 2016-03-06 2017-09-07 F.D.S. Manufacturing Company Product packaging
USD814929S1 (en) * 2016-12-09 2018-04-10 Tekni-Plex, Inc. Packing tray
US20190062031A1 (en) * 2017-08-30 2019-02-28 Bemis Company, Inc. Thermoformed Tray for Food Products
US10457462B2 (en) 2014-10-10 2019-10-29 Bemis Company, Inc. Snap close peel reseal package
USD891274S1 (en) * 2018-12-07 2020-07-28 Meaty Meats Inc. Packaging tray

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473995B1 (en) * 1980-01-23 1983-08-12 Vulliez Expl Ets
FR2721585B1 (en) * 1994-06-27 1996-07-26 Delheure Marie Jose Packaging for flat and semi-circular food products (for example for hosts).
DE202009018478U1 (en) 2009-08-18 2011-10-11 Wolf Management Gmbh packaging
DE102013109119A1 (en) * 2013-08-22 2015-03-12 Peter Will Method for producing a packaging and packaging

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972155A (en) * 1969-09-24 1976-08-03 Mahaffy & Harder Engineering Company Packaging techniques for semi-rigid packages
US3903309A (en) * 1970-07-06 1975-09-02 Mahaffy & Harder Eng Co Self-leak indicating package
US3876133A (en) * 1973-05-10 1975-04-08 Phillips Petroleum Co Reclosable slide-on cover for a rectangularly flanged container
DE2704166A1 (en) * 1976-03-09 1977-09-15 Dart Ind Inc Storage tanks for sausages or similar foods
US4246288A (en) * 1979-08-09 1981-01-20 W. R. Grace & Co. Reclosable package
US4774063A (en) * 1981-04-20 1988-09-27 Mdt Biologic Company Container for use with sterilizers
US4720014A (en) * 1985-04-30 1988-01-19 Sanford Redmond Compact package for spreadable products
US4916921A (en) * 1987-09-10 1990-04-17 Fletcher Charles J Ice maker with vertical cooling member
US4831840A (en) * 1987-09-10 1989-05-23 Fletcher Charles J Ice maker with covered ice tray
US4807747A (en) * 1987-09-16 1989-02-28 Champion Spark Plug Company Package structure for spark plugs
US5167974A (en) * 1987-11-30 1992-12-01 Oscar Mayer Foods Corporation Vacuum packaging with hermetic reclosure
US4917245A (en) * 1989-09-19 1990-04-17 All-Prime Enterprise Corp. Structure of vacuum forming plastic packing case
US5058761A (en) * 1990-09-10 1991-10-22 Bryan Foods, Inc. Reclosable package and a base portion of the package
US5163269A (en) * 1990-09-10 1992-11-17 Bryan Foods, Inc. Method for making reclosable package
US5074416A (en) * 1990-12-14 1991-12-24 Oscar Mayer Foods Corporation Package with recloseable board seal
GB2258220A (en) * 1991-07-31 1993-02-03 Rubbermaid Inc Recycle trash container
US5485919A (en) * 1993-02-22 1996-01-23 Nantucket Industries, Inc. Clamshell package and packaging system
US5520939A (en) * 1994-03-31 1996-05-28 Oscar Mayer Foods Corporation Rigid reclosable bacon package
US5702743A (en) * 1994-03-31 1997-12-30 Kraft Foods, Inc. Rigid reclosable bacon package
US5795604A (en) * 1994-03-31 1998-08-18 Kraft Foods, Inc. Rigid reclosable bacon package
US5770249A (en) * 1995-06-12 1998-06-23 Sara Lee Corporation Meat product package and method of forming same
US5820904A (en) * 1995-06-12 1998-10-13 Sara Lee Corporation Meat product package and method of forming same
US6112928A (en) * 1995-07-28 2000-09-05 Box Ease International Foldable self-standing container with method of manufacture and bulk dispenser
WO1999054214A1 (en) * 1998-04-23 1999-10-28 Box-Ease International, Inc. Sealable containers and method of forming containers
US6231906B1 (en) * 1998-11-17 2001-05-15 Cake Box Bakeries, Inc. Packaging system for tart shells
US6325239B2 (en) 1999-04-22 2001-12-04 The Procter & Gamble Company Stackable, self-supporting container with sliding mechanical closure
US7017776B1 (en) * 2000-01-11 2006-03-28 The Procter & Gamble Company Slidably sealable container having an auxiliary track
US7866128B2 (en) 2000-05-08 2011-01-11 The Procter & Gamble Company Container bottom and methods
US20110067362A1 (en) * 2000-05-08 2011-03-24 Gerard Laurent Buisson Container Bottom and Methods
US20020119223A1 (en) * 2000-05-08 2002-08-29 The Procter & Gamble Company Container bottom and methods
US8061111B2 (en) 2000-05-08 2011-11-22 The Procter & Gamble Company Container bottom and methods
US6446546B1 (en) 2000-10-17 2002-09-10 Glen Hodson Marinading and storage container
US6883678B2 (en) * 2002-04-23 2005-04-26 Hsin-Hung Chou Food container sealing structure
US20030197021A1 (en) * 2002-04-23 2003-10-23 Hsin-Hung Chou Food container sealing structure
US7377394B2 (en) * 2004-07-20 2008-05-27 Fisher Clinical Services Blister pack having a tether ultrasonically welded through a lidding and into a rib
US20060016718A1 (en) * 2004-07-20 2006-01-26 Buss Michael A System and a method for ultrasonically welding a tether to a blister pack
US20060016821A1 (en) * 2004-07-21 2006-01-26 I-Sheng Liu Packaging container with flared peripheral clearance
USD663971S1 (en) 2005-04-08 2012-07-24 Sun Optics, Inc. Eyeglass display
US7604828B2 (en) 2005-05-02 2009-10-20 Conagra Foods Rdm, Inc. Easy-open sausage package
US20060246185A1 (en) * 2005-05-02 2006-11-02 Conagra Foods Packaged Foods Co., Inc. Easy-open sausage package
WO2007145525A1 (en) * 2006-06-16 2007-12-21 Easycup International Ltd Portion package
US20080116099A1 (en) * 2006-11-22 2008-05-22 Eduardo Garcia Tray
US20100230322A1 (en) * 2009-03-10 2010-09-16 David Nicholson Sausage Tray
USD615774S1 (en) 2009-07-31 2010-05-18 Sun Optics, Inc. Eyeglass display stand
USD617554S1 (en) 2009-09-15 2010-06-15 Sun Optics, Inc. Eyeglass case
USD617097S1 (en) 2009-09-15 2010-06-08 Sun Optics, Inc. Eyeglass case
USD623407S1 (en) 2009-09-15 2010-09-14 Sun Optics, Inc. Eyeglass case
US20120005992A1 (en) * 2010-07-09 2012-01-12 Waldrop Christopher N Packaging tray and method of use
US20120006718A1 (en) * 2010-07-09 2012-01-12 Waldrop Christopher N Packaging tray and method of use
US20140322396A1 (en) * 2013-04-30 2014-10-30 J.R. Simplot Company System and method for packaging a frozen product
USD734141S1 (en) * 2013-07-29 2015-07-14 Ronald Smith Package for hot dogs or the like
USD752995S1 (en) * 2013-08-20 2016-04-05 Ronald Smith Packaging for hot dogs
USD734169S1 (en) * 2013-10-15 2015-07-14 Printpack Illinois, Inc. Cigar package
USD734170S1 (en) * 2013-10-15 2015-07-14 Printpack Illinois, Inc. Cigar package
USD754005S1 (en) * 2014-06-02 2016-04-19 Beaver Street Fisheries, Inc. Food packaging
US10457462B2 (en) 2014-10-10 2019-10-29 Bemis Company, Inc. Snap close peel reseal package
US10362976B2 (en) * 2015-01-13 2019-07-30 Boca Dental Supply, LLC Sterile fluid collection tube package
US20160198990A1 (en) * 2015-01-13 2016-07-14 Boca Dental Supply, LLC Sterile fluid collection tube package
US20170253362A1 (en) * 2016-03-06 2017-09-07 F.D.S. Manufacturing Company Product packaging
USD814929S1 (en) * 2016-12-09 2018-04-10 Tekni-Plex, Inc. Packing tray
US20190062031A1 (en) * 2017-08-30 2019-02-28 Bemis Company, Inc. Thermoformed Tray for Food Products
USD891274S1 (en) * 2018-12-07 2020-07-28 Meaty Meats Inc. Packaging tray

Also Published As

Publication number Publication date
NL7100107A (en) 1971-10-29
ZA7008488B (en) 1971-09-29
AU2329070A (en) 1972-06-15
BE761010A1 (en)
CA942719A (en) 1974-02-26
BE761010A (en) 1971-05-27
FR2086376A1 (en) 1971-12-31
BR7102460D0 (en) 1973-04-05
CA942719A1 (en)
DE2063404A1 (en) 1971-11-18

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