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EP0690013A1 - Plate made of a plastic foam - Google Patents

Plate made of a plastic foam Download PDF

Info

Publication number
EP0690013A1
EP0690013A1 EP95201712A EP95201712A EP0690013A1 EP 0690013 A1 EP0690013 A1 EP 0690013A1 EP 95201712 A EP95201712 A EP 95201712A EP 95201712 A EP95201712 A EP 95201712A EP 0690013 A1 EP0690013 A1 EP 0690013A1
Authority
EP
European Patent Office
Prior art keywords
plate
foil
side walls
plate according
extending
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.)
Withdrawn
Application number
EP95201712A
Other languages
German (de)
French (fr)
Inventor
William Waling Koning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Synbra Technology BV
Original Assignee
Synbra Technology BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from NL9401057A external-priority patent/NL9401057A/en
Priority claimed from NL9401162A external-priority patent/NL9401162A/en
Application filed by Synbra Technology BV filed Critical Synbra Technology BV
Publication of EP0690013A1 publication Critical patent/EP0690013A1/en
Withdrawn legal-status Critical Current

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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids

Definitions

  • the invention relates to a plate made of a plastic foam for containing meat, fish or the like foodstuffs, whereby the plate is provided with a bottom and with side walls joining the bottom at its circumference and extending upwards therefrom, whilst the plate is at its bottom side covered with a fluid impermeable foil attached to the plate, said foil being integral with foil parts sealing the side walls against the permeation of fluid.
  • Plates have been proposed with which this can be realized, but such plates are entirely made of fluid impermeable plastics, which leads to the use of comparatively heavy and expensive plates.
  • the foil extends over the upper edges of the plate.
  • a further foil sealing the plate at its upper part and comprising at least one gastight layer may be bonded to the parts of the foil extending over the upper edges of the plate, which foil comprises at least one gastight layer.
  • Recesses extending into the bottom of the plate are thereby efficiently provided in said bottom. Any moisture from the foodstuffs may be received in said recesses. Thus it is prevented that during the processing of the plates filled with foodstuffs before the foil sealing the plate at its upper side is provided, the foil parts extending above the upper edges of the plate come into contact with moisture from the foodstuffs, which would have an adverse effect on the intended sealing of the plate.
  • Figure 1 is a plan view of a plate according to the invention.
  • Figure 2 is a bottom view of the plate shown in Figure 1.
  • Figure 3 is a cross-sectional view of Figure 2, along the line III - III in Figure 2.
  • Figures 4 - 6 are sectional views, corresponding with Figure 3, of further embodiments of a plate according to the invention.
  • the plate made of a plastic foam, preferably polystyrene foam, comprises a bottom 1 and side walls 2 which extend obliquely upwards and outwards from the circumference of the bottom.
  • a large number of recesses or openings 3 are provided in a regular pattern in the bottom 1 of the plate, whereby the cross-section of said recesses or openings preferably increases gradually in a direction away from the upper side of the bottom.
  • Each recess 3 opens into a chamber 4 at some distance from the upper surface of the bottom 1, whereby the cross-section of the upper end of said chamber 4 is larger than that of the bottom end of the recess 3.
  • the cross-section of the chamber 4 increases gradually from its upper end in a direction away from the upper side of the bottom 1, as will be apparent from Figure 3.
  • Recesses or openings and chambers of this type are effective in discharging fluid from the bottom of the plate and for containing said fluid out of sight, in a similar manner as for example described in EU-A-0,600,535.
  • the chambers 4 are covered by means of a fluid impermeable foil 5 comprising at least one gastight layer, which is bonded to the plate and extends over the bottom 1 of the plate.
  • edges 6 of the fluid impermeable foil 5 extend along the entire height of the outer sides of the side walls, which side edges are provided with extensions 8 being integral therewith and extending over the upper edge of the plate, whereby further foil parts 9 join said extensions 8, said further foil parts extending from the upper edge of the plate over part of the inner sides of the upright walls 2.
  • a further foil may be placed over the foil parts 8 extending over the upper edges of the plate and be bonded to said foil parts 8, for example by welding.
  • the polystyrene plate is completely surrounded by a fluid impermeable foil, whereby the interior of the plate is sealed gastight, so that it is made possible to pack foodstuffs gastight, using the polystyrene foam plate according to the invention, whereby it is possible to create a desired atmosphere in the interior of the plate.
  • the foil parts 6, which inter alia extend over the joints between the side walls 2 and the bottom 1, thereby reinforce the plate in an effective manner. Since the sealing of the foil on the plate is furthermore to a considerable extent effected by the bonding of the edges of the foil to the upright side walls 2 of the plate, it will suffice, as is apparent in particular from Figure 3, to use comparatively narrow outer edges 7 for the bottom 1 of the plate.
  • edges of the foil extend upwards from the circumference of the plate into the interior of the side walls, whilst the ends 8 projecting above the side walls are folded over the upper edges of the side walls.
  • a plate of this type may be made by first forming the bottom with the inner parts of the side walls joining said bottom in a mould, and then placing a foil over the product thus formed, after which the outer parts of the upright side walls are formed.
  • Any foil parts projecting beyond the upper edges of the plate may be cut off along the edge of the plate or be folded along the outer sides of the plate.
  • the foil of a fluid impermeable material is joined to the plastic foam of the plate in an effective manner, whilst a further foil sealing the plate at its upper side may be bonded or welded to the parts 8 of the foil extending over the upper edges of the side walls.
  • Figure 5 shows a further variant of the plate according to the invention.
  • the upwardly extending parts 6 of the foil extend through the bottom 1 and along the inner sides of the upright side walls 2 in this embodiment, whilst the free ends 8 of the upwardly extending parts 6 of the foil are in turn folded over the upper edges of the plate, so that a further foil may be bonded or welded thereto, if desired, so as to obtain a gastight space in the interior of the plate.
  • Figure 6 shows yet another variant of the plate according to the invention.
  • the difference with the preceding embodiments is that the recesses 3 only extend along part of the height of the bottom 1 and are closed near their bottom ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

The invention relates to a plate made of a plastic foam for containing meat, fish or the like foodstuffs. The plate is provided with a bottom (1) and with side walls (2) joining the bottom at its circumference and extending upwards therefrom. The plate is at its bottom side covered with a fluid impermeable foil (5) attached to the plate. The fluid impermeable foil is integral with foil parts (6) sealing the side walls against the permeation of fluid. Further said foil extends over the upper edges (8) of the plate.

Description

  • The invention relates to a plate made of a plastic foam for containing meat, fish or the like foodstuffs, whereby the plate is provided with a bottom and with side walls joining the bottom at its circumference and extending upwards therefrom, whilst the plate is at its bottom side covered with a fluid impermeable foil attached to the plate, said foil being integral with foil parts sealing the side walls against the permeation of fluid.
  • A plate of this type is described in FR-A-2,614,877 (Figure 5). These plates are satisfactory per se, but a problem is the fact that the foodstuffs contained in these plates only keep for a limited period of time and/or exhibit undesirable discoloration after a short time already.
  • Consequently there is a great need in practice for plates in which the foodstuffs are contained under a vacuum or in an inert atmosphere.
  • Plates have been proposed with which this can be realized, but such plates are entirely made of fluid impermeable plastics, which leads to the use of comparatively heavy and expensive plates.
  • According to the invention the foil extends over the upper edges of the plate. When using a plate of this type a further foil sealing the plate at its upper part and comprising at least one gastight layer may be bonded to the parts of the foil extending over the upper edges of the plate, which foil comprises at least one gastight layer. Thus it is possible to obtain, in a simple and inexpensive manner, a plate in which foodstuffs may be packed airtight and for example under a vacuum or in an inert gas atmosphere.
  • Recesses extending into the bottom of the plate are thereby efficiently provided in said bottom. Any moisture from the foodstuffs may be received in said recesses. Thus it is prevented that during the processing of the plates filled with foodstuffs before the foil sealing the plate at its upper side is provided, the foil parts extending above the upper edges of the plate come into contact with moisture from the foodstuffs, which would have an adverse effect on the intended sealing of the plate.
  • The invention will be explained in more detail hereafter with reference to embodiments of a plate according to the invention diagrammatically illustrated in the accompanying Figures.
  • Figure 1 is a plan view of a plate according to the invention.
  • Figure 2 is a bottom view of the plate shown in Figure 1.
  • Figure 3 is a cross-sectional view of Figure 2, along the line III - III in Figure 2.
  • Figures 4 - 6 are sectional views, corresponding with Figure 3, of further embodiments of a plate according to the invention.
  • As is shown in the Figures, the plate made of a plastic foam, preferably polystyrene foam, comprises a bottom 1 and side walls 2 which extend obliquely upwards and outwards from the circumference of the bottom.
  • A large number of recesses or openings 3 are provided in a regular pattern in the bottom 1 of the plate, whereby the cross-section of said recesses or openings preferably increases gradually in a direction away from the upper side of the bottom.
  • Each recess 3 opens into a chamber 4 at some distance from the upper surface of the bottom 1, whereby the cross-section of the upper end of said chamber 4 is larger than that of the bottom end of the recess 3. Preferably also the cross-section of the chamber 4 increases gradually from its upper end in a direction away from the upper side of the bottom 1, as will be apparent from Figure 3.
  • Recesses or openings and chambers of this type are effective in discharging fluid from the bottom of the plate and for containing said fluid out of sight, in a similar manner as for example described in EU-A-0,600,535.
  • At the bottom side of the plate the chambers 4 are covered by means of a fluid impermeable foil 5 comprising at least one gastight layer, which is bonded to the plate and extends over the bottom 1 of the plate.
  • As is furthermore apparent from Figure 3, the edges 6 of the fluid impermeable foil 5 extend along the entire height of the outer sides of the side walls, which side edges are provided with extensions 8 being integral therewith and extending over the upper edge of the plate, whereby further foil parts 9 join said extensions 8, said further foil parts extending from the upper edge of the plate over part of the inner sides of the upright walls 2.
  • A further foil may be placed over the foil parts 8 extending over the upper edges of the plate and be bonded to said foil parts 8, for example by welding. In that case the polystyrene plate is completely surrounded by a fluid impermeable foil, whereby the interior of the plate is sealed gastight, so that it is made possible to pack foodstuffs gastight, using the polystyrene foam plate according to the invention, whereby it is possible to create a desired atmosphere in the interior of the plate.
  • The foil parts 6, which inter alia extend over the joints between the side walls 2 and the bottom 1, thereby reinforce the plate in an effective manner. Since the sealing of the foil on the plate is furthermore to a considerable extent effected by the bonding of the edges of the foil to the upright side walls 2 of the plate, it will suffice, as is apparent in particular from Figure 3, to use comparatively narrow outer edges 7 for the bottom 1 of the plate.
  • The embodiments of a plate according to the invention which are shown in sectional view in Figures 4 and 5 largely correspond with the embodiment according to Figures 1 - 3, and consequently like parts are numbered alike in the various Figures.
  • In the embodiment shown in Figure 4 the edges of the foil extend upwards from the circumference of the plate into the interior of the side walls, whilst the ends 8 projecting above the side walls are folded over the upper edges of the side walls.
  • A plate of this type may be made by first forming the bottom with the inner parts of the side walls joining said bottom in a mould, and then placing a foil over the product thus formed, after which the outer parts of the upright side walls are formed.
  • Any foil parts projecting beyond the upper edges of the plate may be cut off along the edge of the plate or be folded along the outer sides of the plate.
  • In this way the foil of a fluid impermeable material is joined to the plastic foam of the plate in an effective manner, whilst a further foil sealing the plate at its upper side may be bonded or welded to the parts 8 of the foil extending over the upper edges of the side walls.
  • Figure 5 shows a further variant of the plate according to the invention.
  • As will be apparent from Figure 5, the upwardly extending parts 6 of the foil extend through the bottom 1 and along the inner sides of the upright side walls 2 in this embodiment, whilst the free ends 8 of the upwardly extending parts 6 of the foil are in turn folded over the upper edges of the plate, so that a further foil may be bonded or welded thereto, if desired, so as to obtain a gastight space in the interior of the plate.
  • Figure 6 shows yet another variant of the plate according to the invention. The difference with the preceding embodiments is that the recesses 3 only extend along part of the height of the bottom 1 and are closed near their bottom ends.

Claims (11)

  1. A plate made of a plastic foam for containing meat, fish or the like foodstuffs, whereby the plate is provided with a bottom and with side walls joining the bottom at its circumference and extending upwards therefrom, whilst the plate is at its bottom side covered with a fluid impermeable foil attached to the plate, said foil being integral with foil parts sealing the side walls against the permeation of fluid, characterized in that said foil extends over the upper edges of the plate.
  2. A plate according to claim 1, characterized in that said foil extends over the upper edges of said plate and over at least part of the inner sides of said upwardly extending side walls.
  3. A plate according to claim 1 or 2, characterized in that said foil extends along the outer sides of said upwardly extending side walls.
  4. A plate according to claim 1 or 2, characterized in that said foil extends through said bottom and into said upwardly extending side walls.
  5. A plate according to claim 1 or 2, characterized in that said foil extends through said bottom and along the inner sides of said upwardly extending side walls.
  6. A plate according to any one of the preceding claims, characterized in that recesses extending into the bottom of the plate are provided in said bottom.
  7. A plate according to claim 6, characterized in that a recess opens into a chamber having a larger cross-section than said recess, said chamber being covered by said foil at the bottom side of the plate.
  8. A plate according to claim 6 or 7, characterized in that said recesses are provided close to the transition between the upper side of the bottom and the inner side of said upright side walls.
  9. A plate according to any one of the preceding claims, characterized in that the part of said foil extending under the bottom of the plate is directly supported on the plastic foam forming the plate.
  10. A plate according to any one of the preceding claims, characterized in that said plate is made of expanded polystyrene foam.
  11. A plate according to any one of the preceding claims, characterized in that a foil sealing the upper side of the plate is bonded to foil parts extending over the upper edges of said plate.
EP95201712A 1994-06-27 1995-06-23 Plate made of a plastic foam Withdrawn EP0690013A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL9401057A NL9401057A (en) 1994-06-27 1994-06-27 Dish made from plastic foam
NL9401057 1994-06-27
NL9401162A NL9401162A (en) 1994-07-14 1994-07-14 Dish made from plastic foam
NL9401162 1994-07-14

Publications (1)

Publication Number Publication Date
EP0690013A1 true EP0690013A1 (en) 1996-01-03

Family

ID=26647232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95201712A Withdrawn EP0690013A1 (en) 1994-06-27 1995-06-23 Plate made of a plastic foam

Country Status (1)

Country Link
EP (1) EP0690013A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700154A1 (en) * 1997-01-06 1998-07-16 Kraemer & Grebe Kg Packaging tray
EP1211193A1 (en) * 2000-11-30 2002-06-05 SIRAP-GEMA S.p.A. Vacuum or modified atmosphere package for foods which tend to release liquids
WO2003006337A1 (en) * 2001-07-12 2003-01-23 Cryovac, Inc. Self-absorbing gas-barrier receptacle for food packaging and food package obtained therefrom
US7244505B2 (en) 2000-07-03 2007-07-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Multilayered packaging for greasy products
AU2003203457B2 (en) * 2002-03-29 2009-09-17 Sirap-Gema S.P.A. Vacuum or modified atmosphere package for foods which tend to release liquids and/or gases

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614877A1 (en) 1987-05-07 1988-11-10 Grouiller Herve System for packaging and wrapping foodstuffs subject to exudation
DE4039354A1 (en) * 1990-12-10 1992-06-11 Silver Plastics Gmbh & Co Kg Moulded dish for packaging e.g. foodstuffs - made of sandwich construction, with impervious skins but absorbent core, one skin being perforated and all layers based on same thermoplastic
EP0600535A1 (en) 1992-12-01 1994-06-08 Synbra Technology B.V. A dish for containing meat, fish or the like foodstuffs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614877A1 (en) 1987-05-07 1988-11-10 Grouiller Herve System for packaging and wrapping foodstuffs subject to exudation
DE4039354A1 (en) * 1990-12-10 1992-06-11 Silver Plastics Gmbh & Co Kg Moulded dish for packaging e.g. foodstuffs - made of sandwich construction, with impervious skins but absorbent core, one skin being perforated and all layers based on same thermoplastic
EP0600535A1 (en) 1992-12-01 1994-06-08 Synbra Technology B.V. A dish for containing meat, fish or the like foodstuffs

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700154A1 (en) * 1997-01-06 1998-07-16 Kraemer & Grebe Kg Packaging tray
US6415925B1 (en) 1997-01-06 2002-07-09 Tiromat Krämer + Grebe GmbH & Co. KG Packaging tray
US7244505B2 (en) 2000-07-03 2007-07-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Multilayered packaging for greasy products
EP1211193A1 (en) * 2000-11-30 2002-06-05 SIRAP-GEMA S.p.A. Vacuum or modified atmosphere package for foods which tend to release liquids
WO2003006337A1 (en) * 2001-07-12 2003-01-23 Cryovac, Inc. Self-absorbing gas-barrier receptacle for food packaging and food package obtained therefrom
US6983575B2 (en) 2001-07-12 2006-01-10 Cryovac, Inc. Self-absorbing gas-barrier receptacle for food packaging and food package obtained therefrom
AU2003203457B2 (en) * 2002-03-29 2009-09-17 Sirap-Gema S.P.A. Vacuum or modified atmosphere package for foods which tend to release liquids and/or gases

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