UST896016I4 - Food package - Google Patents
Food package Download PDFInfo
- Publication number
- UST896016I4 UST896016I4 US896016DH UST896016I4 US T896016 I4 UST896016 I4 US T896016I4 US 896016D H US896016D H US 896016DH US T896016 I4 UST896016 I4 US T896016I4
- Authority
- US
- United States
- Prior art keywords
- tray
- flange
- package
- polymeric film
- perimeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000005977 Ethylene Substances 0.000 abstract description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000006260 foam Substances 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract description 4
- 229920001169 thermoplastic Polymers 0.000 abstract description 4
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 4
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 229920000098 polyolefin Polymers 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 2
- 239000004627 regenerated cellulose Substances 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 2
- 208000035155 Mitochondrial DNA-associated Leigh syndrome Diseases 0.000 abstract 1
- 208000003531 maternally-inherited Leigh syndrome Diseases 0.000 abstract 1
- ORGHESHFQPYLAO-UHFFFAOYSA-N vinyl radical Chemical class C=[CH] ORGHESHFQPYLAO-UHFFFAOYSA-N 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
Definitions
- a sealed package useful in packaging, storing and vending foodstuifs consisting essentially of (a) a tray having a bottom panel with side walls and a continuous outwardly extending flange having a width of at least fii-inch connected to the upper edge of the side wall wherein the tray is prepared from a foam composite of (1) a core of oriented closed cell foam having an elongation of less than about 50% consisting essentially of styrene polymer having a tensile modulus greater than 150,000 p.s.i., and
- thermoplastic film preferably polyvinyl chloride or unoriented butadiene-modified polystyrene bonded to both sides of the core wherein the thermoplastic film has a tensile modulus greater than 150,000 p.s.i., an elongation percentage greater than 5% and is thermoformable within a temperature range of about 50 to 230 C.;
- a polymeric film having a thickness of about 1 to 10 mils prepared from polymers such as polyesters, polyolefins, regenerated cellulose, and elastomeric polymeric films attached to the outwardly extending flange of the tray with a heat-sealed adhesive, preferably an ethylene/vinyl acetate or an ethylene/ vinyl acetate-wax blend adhesive having a bond strength of about 150 to 200 grams wherein the polymeric film cover has a tab portion extending beyond at least a portion of the perimeter of the flange with the remainder of the cover substantially coextensive with the remainder of the perimeter of the flange.
- the package provides good hermetic protection for its food contents thereby significantly reducing the possibilities of spoilage and dehydration.
- the tab portion of the polymeric film cover over the tray provides easy opening of the package by pulling on the tab and the tray exhibits improved cut-through and puncture resistance, making it useful as an eating utensil.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Packages (AREA)
Abstract
A SEALED PACKAGE USEFUL IN PACKAGING, STORING AND VENDING FOODSTUFFS CONSISTING ESSENTIALLY OF (A) A TRAY HAVING A BOTTOM PANEL WITH SIDE WALLS AND A CONTINUOUS OUTWARDLY EXTENDING FLANGE HAVING A WIDTH OF AT LEAST 1/4-INCH CONNECTED TO THE UPPER EDGE OF THE SIDE WALL WHEREIN THE TRAY IS PREPARED FROM A FOAM COMPOSITE OF (1) A CORE OF ORIENTED CLOSED CELL FOAM HAVING AN ELONGATION OF LESS THAN ABOUT 50% CONSISTING ESSENTIALLY OF STYRENE POLYMER HAVING A TENSILE MODULUS GREATER THAN 150,000 P.S.I., AND (2) A THERMOPLASTIC FILM PREFERABLY POLYVINYL CHLORIDE OR UNORIENTED BUTADIENE-MODIFIED POLYSTYRENE BONDED TO BOTH SIDES OF THE CORE WHEREIN THE THERMOPLASTIC FILM HAS A TENSILE MODULUS GREATER THAN 150,000 P.S.I., AN ELONGATION PERCENTAGE GREATER THAN 5% AND IS THERMOFORMABLE WITHIN A TEMPERATURE RANGE OF ABOUT 50* TO 230*C.; (B) A FOODSTUFF CONTAINED IN THE TRAY; AND (C) A POLYMERIC FILM HAVING A THICKNESS OF ABOUT 1 TO 10 MILS PREPARED FORM POLYMERS SUCH AS POLYESTERS, POLYOLEFINS, REGENERATED CELLULOSE, AND ELASTOMERIC POLYMERIC FILMS ATTACHED TO THE OUTWARDLY EXTENDING FLANGE OF THE TRAY WITH A HEAT-SEALED ADHESIVE, PREFERABLY AN ETHYLENE/VINYL ACETATE OR AN ETHYLENE/ VINYL ACETATE-WAX BLEND ADHESIVE HAVING A BOND STRENGTH OF ABOUT 150 TO 200 GRAMS WHEREIN THE POLYMERIC FILM COVER HAS A TAB PORTION EXTENDING BEYOND AT LEAST A PORTION OF THE PERIMETER OF THE FLANGE WITH THE REMAINDER OF THE COVER SUBSTANTIALLY COEXTENSIVE WITH THE REMAINDER OF THE PERIMETER OF THE FLANGE. THE PACKAGE PROVIDES GOOD HERMETIC PROTECTION FOR ITS FOOD CONTENTS THEREBY SIGNIFICANTLY REDUCING THE POSSIBILITIES OF SPOILAGE AND DEHYDRATION. THE TAB PORTION OF THE POLYMERIC FILM COVER OVER THE TRAY PROVIDES EASY OPENING OF THE PACKAGE BY PULLING ON THE TAB AND THE TRAY EXHIBITS IMPROVED CUT-THROUGH AND PUNCTURE RESISTANCE, MAKING IT USEFUL AS AN EATING UTENSIL.
Description
DFENSlVE PU LlCA'llN UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Otfice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED MARCH 7, 1972 Int. Cl. B65b 9/04 US. Cl. 99-471 LP 1 Sheet Drawing. 10 Pages Specification A sealed package useful in packaging, storing and vending foodstuifs consisting essentially of (a) a tray having a bottom panel with side walls and a continuous outwardly extending flange having a width of at least fii-inch connected to the upper edge of the side wall wherein the tray is prepared from a foam composite of (1) a core of oriented closed cell foam having an elongation of less than about 50% consisting essentially of styrene polymer having a tensile modulus greater than 150,000 p.s.i., and
(2) a thermoplastic film preferably polyvinyl chloride or unoriented butadiene-modified polystyrene bonded to both sides of the core wherein the thermoplastic film has a tensile modulus greater than 150,000 p.s.i., an elongation percentage greater than 5% and is thermoformable within a temperature range of about 50 to 230 C.;
(b) a foodstuif contained in the tray; and
(c) a polymeric film having a thickness of about 1 to 10 mils prepared from polymers such as polyesters, polyolefins, regenerated cellulose, and elastomeric polymeric films attached to the outwardly extending flange of the tray with a heat-sealed adhesive, preferably an ethylene/vinyl acetate or an ethylene/ vinyl acetate-wax blend adhesive having a bond strength of about 150 to 200 grams wherein the polymeric film cover has a tab portion extending beyond at least a portion of the perimeter of the flange with the remainder of the cover substantially coextensive with the remainder of the perimeter of the flange.
The package provides good hermetic protection for its food contents thereby significantly reducing the possibilities of spoilage and dehydration. The tab portion of the polymeric film cover over the tray provides easy opening of the package by pulling on the tab and the tray exhibits improved cut-through and puncture resistance, making it useful as an eating utensil.
R. G. HARRIS 1896,01
FOOD PACKAGE Filed Jan. 14, 1971 INVENTOR ROLAND G. HARRIS BY A 'ORNEY
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10657271A | 1971-01-14 | 1971-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST896016I4 true UST896016I4 (en) | 1972-03-07 |
Family
ID=22312150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US896016D Pending UST896016I4 (en) | 1971-01-14 | 1971-01-14 | Food package |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST896016I4 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173655A (en) | 1978-06-08 | 1979-11-06 | International Paper Company | Poultry tray |
| EP0284137A1 (en) * | 1987-03-17 | 1988-09-28 | Unilever N.V. | Package |
| WO1998001363A1 (en) * | 1996-07-08 | 1998-01-15 | Cryovac Inc. | Hermetically sealed package, and method and machine for manufacturing it |
| US20130248411A1 (en) * | 2012-03-21 | 2013-09-26 | Herbert Bader | Food-packaging tray and method of making same |
-
1971
- 1971-01-14 US US896016D patent/UST896016I4/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173655A (en) | 1978-06-08 | 1979-11-06 | International Paper Company | Poultry tray |
| EP0284137A1 (en) * | 1987-03-17 | 1988-09-28 | Unilever N.V. | Package |
| WO1998001363A1 (en) * | 1996-07-08 | 1998-01-15 | Cryovac Inc. | Hermetically sealed package, and method and machine for manufacturing it |
| US6488972B1 (en) * | 1996-07-08 | 2002-12-03 | Cryovac, Inc. | Hermetically sealed package, and method and machine for manufacturing it |
| US20130248411A1 (en) * | 2012-03-21 | 2013-09-26 | Herbert Bader | Food-packaging tray and method of making same |
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