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Publication numberUS3349985 A
Publication typeGrant
Publication dateOct 31, 1967
Filing dateFeb 3, 1966
Priority dateFeb 4, 1965
Publication numberUS 3349985 A, US 3349985A, US-A-3349985, US3349985 A, US3349985A
InventorsBrian Salway
Original AssigneeE S & A Robinson Holdings Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Package
US 3349985 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Oct. 31, 1967 B. SALWAY PACKAGE Filed Feb. 5, 1966 a 1 v F J k; '3 -2l- 3'0 35' l 26" 1 -2a- -22- -29 e1- 27,

United States Patent-O 3,349,985 PACKAGE Brian Salway, Redland, Bristol, England, assignor to E S & A Robinson (Holdings) Limited, Bristol, England, a company of Great Britain and Northern Ireland Filed Feb. 3, 1966, SenNo. 524,713

Claims priority, application Great Britain, Feb. 4, 1965 4 Claims. (Cl. 229-44) ABSTRACT OF THE DISCLOSURE Packages are described which are resistant to fluids, grease or the transmission of moisture vapour, each of whichhas a tray of plastics material for containing foodstuffs or the like and an enclosing shell sealed to the tray. The shell provides a combined lid and protective outer casing for the tray and may be attached to the tray by heat sealing or other suitable means.

This invention relates to packages particularly suitable for containing foodstuffs.

According to this invention a package comprises a tray of plastics material and an enclosing shell, the said tray having an out-turned peripheral flange with an upper face and an under face and the shell comprising a row of panels of carton forming material hinged one to the next, the upper face of the flange being sealed to the inside surface of the shell, the outer surface of one end panel of said shell being secured to the under face of said flange whereby part of said flange is sandwiched between two portions of the shell to provide a package resistant to fluids, grease or to moisture vapour transmission. The said tray may be pressure formed or thermo formed and made of protective material or of material which can be rendered so by coating or laminating. The shell may be pre-glued or flat and made of fully or partially coated or laminated material to give any barrier properties required and such material may be itself capable of being heat-sealed to the tray. Instead, a heat sealable coating medium in the form of an all over coating or pattern may be applied to areas to be sealed on the shell and/or the tray, or the areas to be sealed may be strip laminated. If desirable, the heat sealable coating medium may be-peela-ble i.e. of such a character that the contacting surfaces of the tray and shell can be separated without being destroyed.

The term carton forming material is intended to cover cardboard and other fibrous sheet material and plastics.

One form of package made according to this invention is illustrated in the accompanying drawing wherein:

FIG. 1 is a blank of a form of shell.

FIG. 2 is a perspective view of the tray.

FIG. 3 is a perspective view of the package formed from the tray and shell.

FIG. 4'is a perspective view of the package in the open position.

FIG. 5 is a section taken on line 55 on FIG. 3.

3,349,985 Patented Oct. 31, 1967 Referring to the drawings, the shell is formed as a flat blank and erected around the tray. The blank shown in FIG. 1 comprises a top panel 21, a back panel 22, a bottom panel 23, a front panel 24 having a flap 25. The top panel 21 has a closing flap 26 with a tuck-in tab 27 which engages a slit 28 on the front panel 24. The top panel 21 is also provided with a line of weakening 29 and two parallel lines of perforations 30 which together define a lid panel 31 and marginal panels 32. The lines 30 extend into the flap 26 defining tabs 33 on the marginal portions of the'flap 26.

The tray shown in FIGS. 2-5 comprises a bottom 34 with a raised centre portion 35, fluted walls 36 and a continuous peripheral flange 37, the front part of which is numbered 38.

In use, the tray is filled with the product to be packaged and the cardboard blank is applied to the tray by heat sealing the flap 25 to the underside of the front part 38 of the flange 37 and heat sealing the marginal portions of the top panel 21 to the upper surface of the flange 37. The tabs 33 are adhered to the front panel 24. The part 38 of the flange 37 is thus sandwiched between the two panels 25 and 21 of the blank. A spot of heat sealable or hot melt adhesive at the centre of the inside of the flap 26 adheres the flap 26 to the front panel 24.

In order to gain access to the contents of the tray, the tab 27 is taken between the thumb and finger and the flap at 26 is raised from the front panel 24 thereby breaking through the lines of perforations 30 along the front and top of the shell so that the lid panel 31 can be raised along the hinge line 29. The tabs 33 remain adhered to the front panel 24.

If it is desired to retain any portion of the contents of Y If desired the perforations 30 can be dispensed with and part of the whole of the top made peelable.

The package can be used for any commodity at present packed in ordinary trays with sealed lids.

The rigidity and uniformity imparted by the shell makes possible the easy stacking in and dispensing from vending machines. The easy method of access makes it possible to increase the range of products packed to include fruit drinks, motor oil and milk.

The tray may be formed with multiple cavities, the shell being of construction previously described. The package can be used for whole meals, each item being arranged in a separate cavity, or single dish placed in a tray as previously described. In either case the food can a series of shells united in such a way that one or more each with its own tray, can be readily separated from the remainder.

The package can be readily heated in a microwave oven. If desired the package can have a built-in heating system with disposable electrodes, the arrangement being such that when connected to an electric supply at low voltage, the food contained in the package can be heated and/ or kept hot at an appropriate temperature.

What I claim and desire to secure by Letters Patent is:

1. A package comprising a tray of plastics material and an enclosing shell, the said tray having an out-turned peripheral flange with an upper face and an under face; said shell comprising a row of panels of carton forming material hinged one to the next, the upper face of said flange being sealed to the inside surface of said shell, the outer surface of one end panel of said shell being secured to the under face of said flange whereby part of saidflange is sandwiched between two portions of said shell.

2. A package according to claim 1, wherein one of said panels forms a top for said tray and wherein at least part of the top panel of said shell is readily openable to expose the contents of the tray while the rest of said shell remains attached to the tray.

References Cited UNITED STATES PATENTS 2,014,335 9/1935 Kilmer et al.

3,142,378 7/1964 Lengsfield 206'-65 3,154,215 10/1964 Vesconte 20646 X 3,175,684 3/1965 Andre et a1. 20665 3,220,542 11/ 1965 Vesconte 206-4531 3,246,825 4/ 1966 Zastrow 22951 3,281,051 10/1966 OBrien et a1. 20646 X 3,286,909 11/ 1966 Scharre -a 20646 20 THERON E. CONDON, Primary Examiner.

M. L. RICE, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2014335 *Aug 9, 1933Sep 10, 1935Johnson & JohnsonPackaging surgical absorbent cotton
US3142378 *Jan 14, 1963Jul 28, 1964Lengsfield Jr Byron HSeparable carton
US3154215 *Aug 25, 1960Oct 27, 1964H S Crocker Co IncDenestable stack of frozen food containers
US3175684 *Apr 13, 1964Mar 30, 1965St Regis Paper CoMultibottle package and carrier
US3220542 *Dec 5, 1960Nov 30, 1965H S Crocker Co IncFrozen food container
US3246825 *Jun 24, 1964Apr 19, 1966Waldorf Paper Prod CoBeer keg container
US3281051 *Aug 12, 1963Oct 25, 1966Ekco Containers IncHermetically sealed package
US3286909 *Aug 14, 1963Nov 22, 1966Anaconda Aluminum CoContainer
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3467244 *Mar 10, 1967Sep 16, 1969Mahaffy & Harder Eng CoEvacuated package with semirigid shell and flexible closure
US3478868 *Sep 1, 1967Nov 18, 1969Interstate Folding Box CoSterilizable containers
US3730338 *Mar 4, 1971May 1, 1973Kendall & CoSterile shielded container
US3868017 *Jun 4, 1973Feb 25, 1975Quaker Oats CoFood container
US4304335 *Jun 9, 1980Dec 8, 1981Johns-Manville CorporationPaperboard container for baking
US4497433 *Sep 20, 1983Feb 5, 1985Rock-Tenn CompanyCombination food tray
US4511042 *May 21, 1984Apr 16, 1985Rock-Tenn CompanyCombination snack food tray
US4821884 *Nov 12, 1987Apr 18, 1989General Foods LimitedSecondary packaging
US4889239 *Aug 25, 1983Dec 26, 1989Sandish George RFood and beverage cup package
US4925035 *Sep 14, 1988May 15, 1990Ludwig Schokolade GmbhPackaging for food and method of producing same
US5011006 *Apr 26, 1990Apr 30, 1991General Mills, Inc.Container with lid closure having an improved flared stand feature
US5060800 *Aug 24, 1990Oct 29, 1991Societe Parisienne D'impression Et De Cartonnage (Spic)Tight container particularly for food products
US5090615 *Jan 14, 1991Feb 25, 1992Conagra, Inc.Container/lid assembly
US5234159 *Feb 24, 1992Aug 10, 1993Conagra, Inc.Container/lid assembly
US5423449 *Nov 1, 1993Jun 13, 1995International Paper CompanyMulti-compartment ovenable food container
US5573693 *Jul 15, 1993Nov 12, 1996Conagra, Inc.Food trays and the like having press-applied coatings
US5588587 *Nov 22, 1995Dec 31, 1996International PaperDual ovenable food package
US5743402 *Mar 18, 1997Apr 28, 1998Gics & Vermee, L.P.Food package including a tray and a sleeve
US5839574 *Dec 1, 1995Nov 24, 1998Conagra, Inc.Frozen food tray and carton ensemble
US5900264 *Nov 6, 1997May 4, 1999Gics & Vermee, L.P.Food package including a tray and a sleeve surrounding the tray
US20070264395 *May 7, 2007Nov 15, 2007Robert AdamsMethods and apparatus for producing packaged companion animal food products to be distributed along with human food products
US20130175197 *Dec 19, 2012Jul 11, 2013Lisa D. FieldmanOuter package for securely supporting cup-shaped product once product is removed from the outer package
EP0268427A2 *Nov 12, 1987May 25, 1988General Foods LimitedSecondary packaging
EP1332981A2 *Feb 4, 2003Aug 6, 2003DeSter. ACS Holding B.V.Soup vessel
WO2008002631A1 *Jun 26, 2007Jan 3, 2008Cadbury Adams Usa LlcReclosable blister package assembly
WO2016087931A1 *Nov 25, 2015Jun 9, 2016Kraft Foods R&D, Inc.A package assembly, a blank and a method of manufacturing a package assembly
Classifications
U.S. Classification206/557, 206/521, 229/232, 229/149
International ClassificationB65D1/34, B65D77/04
Cooperative ClassificationB65D77/0433, B65D1/34
European ClassificationB65D77/04C3, B65D1/34