US20160150896A1 - Plate for serving hot meals thereon - Google Patents

Plate for serving hot meals thereon Download PDF

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Publication number
US20160150896A1
US20160150896A1 US14/905,987 US201414905987A US2016150896A1 US 20160150896 A1 US20160150896 A1 US 20160150896A1 US 201414905987 A US201414905987 A US 201414905987A US 2016150896 A1 US2016150896 A1 US 2016150896A1
Authority
US
United States
Prior art keywords
plate
pouch
cavity
plate according
volume
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.)
Abandoned
Application number
US14/905,987
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English (en)
Inventor
Pol Speleers
Karim REDJAL
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.)
Probalco BVBA
Original Assignee
Probalco BVBA
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
Application filed by Probalco BVBA filed Critical Probalco BVBA
Assigned to PROBALCO BVBA reassignment PROBALCO BVBA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Redjal, Karim, SPELEERS, POL
Publication of US20160150896A1 publication Critical patent/US20160150896A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/02—Plates, dishes or the like
    • A47G19/027—Plates, dishes or the like with means for keeping food cool or hot
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00—Other table equipment
    • A47G23/06—Serving trays
    • A47G23/0683—Serving trays with means for keeping food cool or hot
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present invention concerns a plate suited for directly dressing and serving meals directly thereon, which plate comprises a heat storing material allowing keeping the meal dressed thereon warm for an extended period of time in view of regular plates without heat storing material.
  • WO 90/14783 U.S. Pat. No. 5,125,391, U.S. Pat. No. 4,304,106 for example disclose trays for storing and transporting plates therein. These trays all include a heat storing material such as a phase change material that can store heat rapidly and release the heat more slowly over an elapsed period of time.
  • a heat storing material such as a phase change material that can store heat rapidly and release the heat more slowly over an elapsed period of time.
  • a drawback of such trays is that these are not suited for serving food directly thereon but are intended for storing one or more plates with food thereon to enable serving food on these plates at a desired temperature during a relative long period of time. Moreover the use of such trays is generally considered non-appealing for serving food.
  • Another drawback is that with trays as described in at least U.S. '391 and U.S. '106 the heat storing material is provided in a cavity defined by a top and bottom shell of the tray, whereby in case of damaging one of these shells the heat storing material may leak out of the cavity, especially when at a elevated temperature (generally about 60° C.) when the heat storing material is in a fluid state.
  • WO 03/079869 discloses a plate for direct contact with food served thereon, comprising a slot in its lower surface for accommodating a cartridge of heat storing material therein.
  • a drawback of such plate is that the plate and cartridge are two separate items that need to be assembled and disassembled for each use cycle, which is cumbersome and very impractical in restaurants or on large events where dishwashing the plates and re-use of the plates needs to be fast and effective.
  • the present invention addresses the above identified need by providing a plate for direct contact with food served thereon, said plate comprising: (a) an upper part defining a well of the plate for receiving food and an outer rim extending along at least part of the periphery of the well; (b) a base part fixed to the upper part thereby defining a sealed cavity between the upper and base parts (c) an amount of latent heat storing material disposed in said sealed cavity wherein said heat storing material is provided in a sealed flexible pouch.
  • the heat storing material fills the pouch substantially entirely.
  • the cavity is situated under at least part of the surface of the well of the plate and under at least part of the outer rim of the plate and that the volume of the cavity V(c) is larger than the volume occupied by the pouch thereby defining a free volume in the cavity, the free volume being situated under the outer rim of the plate.
  • the volume of the cavity V(c) and the volume of the heat storing material in its expanded phase V(e) are preferably chosen such that the ratio V(e)/V(c) is comprised between 0.6 and 0.9.
  • the heat storing material preferably is a phase change material (PCM) chosen from the group comprising: hydrated salts, organic compounds, solid to solid PCMs, eutectic solutions and/or admixtures thereof.
  • PCM phase change material
  • the pouch is preferably manufactured in a material comprising polypropylene, polyethylene, polyester such as polyethylene terephthalate (PET) or polyethylene terephthalate glycol-modified (PET-G), polyamide and/or combinations thereof, whereby polyamide 66 is highly preferred.
  • the pouch is manufactured of a sandwich material comprising at least one layer of polypropylene and at least one layer of polyamide or polyester.
  • said polypropylene layer is positioned internally with respect to the layer comprising polyamide or polyester or a combination thereof, or is covered by the layer comprising polyamide or polyester or a combination thereof.
  • the pouch is manufactured of a sandwich material comprising polypropylene layer covered by a polyamide layer.
  • the pouch is manufactured of a sandwich material comprising polypropylene layer covered by a polyester layer, wherein said polyester is preferably selected from a group comprising polyethylene terephthalate (PET) or polyethylene terephthalate glycol-modified (PET-G).
  • the plate or at least the upper and or lower part thereof is preferably manufactured in a material selected from the group comprising: ceramic material such as glazed ceramics or porcelain.
  • a heat reflective layer is provided between the base part facing the cavity and the pouch.
  • a partitioning wall may be provided in said cavity and defining a compartment wherein the pouch is confined and another compartment substantially corresponding to the free volume.
  • the plate according to the present invention preferably has a total weight of 1 kg or less, preferably 0.8 kg or less.
  • the present invention also concerns a method of manufacturing a plate as identified above, said method comprising the steps of: a) providing an upper part and a base part; b) providing a pouch filled with a heat storing material with desired heat absorbing and releasing properties; c) accommodating the pouch on the intended top surface of the base part or the intended lower surface of the upper part and subsequently fixing the upper part and base part to enclose the pouch in a cavity defined both the upper and base part of the plate.
  • FIG. 1 schematically represents a perspective cut-out view of a plate according to the present invention
  • FIG. 2 represents a cross-section according to line II-II in FIG. 1 ;
  • FIG. 3 represents an alternative embodiment of a plate as depicted in FIG. 1 .
  • FIG. 1 represents a plate 1 according to the present invention comprising an upper part 2 and a base part 3 with a sealed cavity 4 defined in between both part 2 and 3 .
  • the upper part 2 comprises a generally planar disc-shaped well 5 and a slanting outer rim 6 extending along the periphery of the well.
  • the outer rim 6 comprises a flange 7 that extends from the outer periphery of the rim towards the base part, thereby defining a void 8 between the outer rim and said flange.
  • a rim 9 is provided extending transversally in view of the well and away from said well.
  • a circular slot 10 is provided in the circular circumference.
  • the base part comprises a rim 11 along its periphery extending into the cavity 4 and defining a circular shoulder portion 12 able to cooperate with the slot circular slot 10 of the upper part for (hermetically) sealing and fixing the base part to the upper part.
  • the base part 3 and upper part 3 can be fixed by welding (friction welding; laser welding; ultrasonic welding) or by gluing, depending on the material wherein both parts are manufactured.
  • the upper part and base part can be manufactured from the same material or from different materials chosen from the group comprising: porcelain, plastic, metal or admixtures thereof.
  • both parts 2 and 3 are manufactured in glazed ceramics such as porcelain, in which case it is preferred to apply glue for fixing the upper part and base part together.
  • the pouch 13 is preferably manufactured in a flexible and elastic polymeric material such as polypropylene, polyamide or polyethylene, whereby polyamide 66 is preferred for the reason that it allows good spreading of the PCM material without the sidewalls of the pouch to adhere to one another.
  • the material wherein the pouch is manufactured preferably has a high tear resistance.
  • the material of which the pouch is manufactured is a sandwich material comprising at least one layer of polypropylene and at least one layer of polyamide or polyester.
  • said sandwich material comprises polypropylene layer that is positioned internally with respect to the layer comprising polyamide or polyester or a combination thereof, or is covered by the layer comprising polyamide or polyester or a combination thereof.
  • the pouch is manufactured of a sandwich material comprising polypropylene layer covered by a polyamide layer or of a sandwich material comprising polypropylene layer covered by a polyester layer, wherein said polyester is preferably selected from a group comprising polyethylene terephthalate (PET) or polyethylene terephthalate glycol-modified (PET-G).
  • PET polyethylene terephthalate
  • PET-G polyethylene terephthalate glycol-modified
  • the PCM material as per the present invention is defined as a material capable of absorbing, storing, and releasing an amount of energy for a long period of time.
  • the latent heat or cold storage process can be achieved through a phase change, like for example from solid to solid, solid to liquid, solid to gas and liquid to gas, once the material has been subjected to a certain temperature called melting temperature.
  • the PCM material 14 may include for example: hydrated salts such as Na2 SO4, 10H2 O; Na2 HPO4, 12H2 O; CaCl2, 6H2 O; [Na2 CO3 ]2, 10H2 O; Mg[NO3 ]2, 6H2 O; MgCl2, 6H2 O; MgSO4, 12 H2 O; sodium acetate trihydrate, glycols such as polyethylene glycol, clathrates, hydroxides, Hydrophobic RT40 Powder, paraffin like octadecane, n-Paraffins, sugar alcohols or fatty acids; paraffin mixed with hydrophobic silica, non-paraffin organic compounds, such as lauric acid, napthalene, magnesium nitrate; acetimide; benzoic acid; strontium bromide; naphthalene; a mixture of urea and benzoic acid, a mixture of benzomide and be
  • PCMs For assuring different storage and release of heat or cold properties that would be suitable for different types of applications, commercially available PCMs cover a phase change temperature range from ⁇ 40° C. to +120° C., whereby for the present invention PCMs having a phase change temperature between 50° C. and 65° C. are preferred.
  • PCM material is the n-paraffin based Rubitherm® RT 58 commercialised by RubiTherm®.
  • This PCM material has a phase change temperature (melting temperature) ranging between 55-59° C. (typically 58° C.); a heat storage capacity of 178 kJ/kg; a density (solid at 15° C.) of 0.88 kg/l; a liquid density (80° C.) of 0.77 kg/l; a volume expansion during phase change of 14%; a heat conductivity of 0.2 W/m*K and a kinetic viscosity (at 90° C.) of 32.49 mm2/s.
  • the pouch with the PCM in an expanded state occupies a volume V(e) that is lower than the total volume V(c) of the cavity (including the void 8 ), whereby the ratio V(e)/V(c) is preferably comprised in the range between 0.6-0.9.
  • the rim 11 provided on the base part 3 preferably defines a partitioning wall in the cavity, thereby creating a central compartment (below the well 5 of the plate) wherein the pouch is accommodated and a free volume below the outer rim of the plate (substantially corresponding to the void 8 ).
  • a heat reflective layer 15 or heat insulating layer is provided between the pouch and the base part 3 of the plate 1 .
  • FIG. 3 represents an alternative embodiment wherein the cavity is further partitioned in three or more, in this case four, compartments.
  • T1 T2 and T3 are preferably different and wherein these temperatures can range between 0° C. and 120° C., such as to create different zones on the plate that are maintained at different temperatures during a certain period of time sufficient for dressing and serving food on said plate.
  • the plate preferably comprises an indicator 16 , accommodated in for example the outer rim 6 of the plate 1 and connected to temperature sensors 17 designated to each of the PCM comprising compartments of the plate in order to provide a visual or other indication of the temperature in the compartments corresponding to specific sections of the well of the plate.
  • the plate may comprise a number of separating walls 18 on the food receiving surface of the well 5 , which walls 18 are arranged corresponding to the specific geometry of the PCM pouches for different temperature zones on the plate.
  • Manufacturing a plate 1 comprises the steps of: a) providing the upper part and the base part; b) providing a pouch filled with a PCM material with a desired phase change temperature; c) accommodating the pouch on the intended top surface of the base part or the intended lower surface of the upper part and subsequently fixing the upper and base parts to enclose the pouch in the cavity defined both the upper and base part of the plate.
  • the plate and specifically the PCM material accommodated therein is heated to a desired temperature at or above its phase change temperature and subsequently food can be dressed directly on the upper part 2 of the plate 1 , preferably in the well 5 .
  • the PCM material will release the heat stored therein over an extended period of time (generally up to 30 and even 60 minutes) the food dressed and served on the plate will remain warm during that extended period of time.
  • a waiter When serving the plate, a waiter can easily hold the plate at its outer rim as in this part no PCM material is present and as this part is filled with a layer of air that acts as an insulator.
  • the free space in the cavity situated under the outer rim of the plate can be filled or partially filled with other insulating materials such as a heat insulating foam.
  • the total amount of PCM material can be limited to for example between 60-390 cm3, preferably between 60-260 cm3, more preferably between 60-130 cm3 and most preferably between 90-130 cm3, thereby enabling limiting the total weight of the plate (upper part+lower part+pouch+PCM material) to below 2 kg, preferably below 1 kg even when both the upper plate and base plate are manufactured in porcelain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Table Devices Or Equipment (AREA)
US14/905,987 2013-07-23 2014-07-23 Plate for serving hot meals thereon Abandoned US20160150896A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13177666.8 2013-07-23
EP13177666.8A EP2829202A1 (fr) 2013-07-23 2013-07-23 Plateau pour servir des repas chauds
PCT/EP2014/065831 WO2015011195A1 (fr) 2013-07-23 2014-07-23 Assiette sur laquelle servir des repas chauds

Publications (1)

Publication Number Publication Date
US20160150896A1 true US20160150896A1 (en) 2016-06-02

Family

ID=48914052

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/905,987 Abandoned US20160150896A1 (en) 2013-07-23 2014-07-23 Plate for serving hot meals thereon

Country Status (10)

Country Link
US (1) US20160150896A1 (fr)
EP (2) EP2829202A1 (fr)
JP (2) JP2016530915A (fr)
CN (1) CN105473030A (fr)
AU (1) AU2014295048B2 (fr)
CA (1) CA2918261C (fr)
DK (1) DK3024361T3 (fr)
ES (1) ES2890103T3 (fr)
PL (1) PL3024361T3 (fr)
WO (1) WO2015011195A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105996645A (zh) * 2016-05-18 2016-10-12 上海理工大学 余热利用蓄热式餐盘
BE1024318B1 (nl) * 2016-06-30 2018-01-30 Probalco Bvba Met fase-overgangsmateriaal gevulde pouch en werkwijze voor het vervaardigen daarvan
BE1024319B1 (nl) * 2016-06-30 2018-01-30 Probalco Bvba Dubbelwandig serviesgoed dat is voorzien van een met fase-overgangsmateriaal gevulde pouch
BE1023979B9 (nl) * 2016-06-30 2017-10-18 Probalco Bvba Schotel voor het opdienen van voedsel en werkwijze voor het produceren ervan
CH713454A2 (de) * 2017-02-13 2018-08-15 Scaloric Gmbh Doppelwandiger Speiseteller mit PCM.
BE1026686B1 (nl) * 2018-10-05 2020-05-07 Promeco Nv Werkwijze voor het produceren van een met faseovergangsmateriaal gevuld serviesgoed
BE1029572B1 (nl) * 2021-07-09 2023-02-07 Promeco Nv Serviesgoedsysteem omvattende thermisch-buffer-materiaal en fase-transitie-materiaal

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US3837330A (en) * 1973-03-28 1974-09-24 American Hospital Supply Corp Heat-retaining server
US3875370A (en) * 1974-03-07 1975-04-01 Standex Int Corp Heat-retaining food service unit
US3916872A (en) * 1974-04-05 1975-11-04 Kreis Ag Heat storage dish
US4086907A (en) * 1976-09-08 1978-05-02 Caddy Corporation Of America Heat storage dish
US4246884A (en) * 1979-08-17 1981-01-27 Mcgraw-Edison Company Plate warmer
US4505252A (en) * 1983-09-09 1985-03-19 American Hospital Supply Corporation Hollow dishes with meltable cores and method of making such dishes
US4567877A (en) * 1984-07-30 1986-02-04 Bahman Sepahpur Heat storage food container
US4771761A (en) * 1985-07-23 1988-09-20 Jacques Doukhan Food receptacle comprising a reheating device by exothermal reaction of two reactive products
US4777931A (en) * 1987-07-07 1988-10-18 Kaltron, Inc. Platewarmer system
US4982722A (en) * 1989-06-06 1991-01-08 Aladdin Synergetics, Inc. Heat retentive server with phase change core
US5052369A (en) * 1985-12-13 1991-10-01 Johnson Kendrick A Heat retaining food container
US5125391A (en) * 1991-10-10 1992-06-30 Servolift Eastern Corporation Heat-retaining food service container
US5155316A (en) * 1990-12-24 1992-10-13 Chiu Sou Kuein Heat-conducting mat for absorbing microwave and electromagnetic wave energy
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US5440975A (en) * 1992-02-25 1995-08-15 Bean; Douglas C. Food temperature maintenance
US5611329A (en) * 1995-08-04 1997-03-18 Truetech, Inc. Flameless heater and method of making same
US5901699A (en) * 1995-09-19 1999-05-11 Seco Products Corporation Heat retentive food service base
US5916470A (en) * 1997-01-10 1999-06-29 Aladdin Industries, Llc Microwaveable heat retentive receptacle
US6147337A (en) * 1998-12-10 2000-11-14 Aladdin Industries, Llc Microwaveable heat retentive receptacle
US6539935B2 (en) * 1999-12-14 2003-04-01 Kabushiki Kaisha Hosokawa Yoko Package for warming food
US6564558B1 (en) * 2000-10-05 2003-05-20 Seymour Michael L Disposable self-cooling, self-heating container
US20060011619A1 (en) * 2004-07-14 2006-01-19 Sheridan Linda D Heating element
US7131289B2 (en) * 2004-06-29 2006-11-07 The Glad Products Company Container
US7176426B2 (en) * 2005-03-18 2007-02-13 Ramirez Juan Jose Integrated microwaveable heat storage device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065744A (en) * 1961-08-22 1962-11-27 Legion Utensils Company Inc Plate warmer
US3557774A (en) * 1969-01-24 1971-01-26 Kries Ag Heat storage dish
US3837330A (en) * 1973-03-28 1974-09-24 American Hospital Supply Corp Heat-retaining server
US3875370A (en) * 1974-03-07 1975-04-01 Standex Int Corp Heat-retaining food service unit
US3916872A (en) * 1974-04-05 1975-11-04 Kreis Ag Heat storage dish
US4086907A (en) * 1976-09-08 1978-05-02 Caddy Corporation Of America Heat storage dish
US4246884A (en) * 1979-08-17 1981-01-27 Mcgraw-Edison Company Plate warmer
US4505252A (en) * 1983-09-09 1985-03-19 American Hospital Supply Corporation Hollow dishes with meltable cores and method of making such dishes
US4567877A (en) * 1984-07-30 1986-02-04 Bahman Sepahpur Heat storage food container
US4771761A (en) * 1985-07-23 1988-09-20 Jacques Doukhan Food receptacle comprising a reheating device by exothermal reaction of two reactive products
US5052369A (en) * 1985-12-13 1991-10-01 Johnson Kendrick A Heat retaining food container
US4777931A (en) * 1987-07-07 1988-10-18 Kaltron, Inc. Platewarmer system
US4982722A (en) * 1989-06-06 1991-01-08 Aladdin Synergetics, Inc. Heat retentive server with phase change core
US5155316A (en) * 1990-12-24 1992-10-13 Chiu Sou Kuein Heat-conducting mat for absorbing microwave and electromagnetic wave energy
US5125391A (en) * 1991-10-10 1992-06-30 Servolift Eastern Corporation Heat-retaining food service container
US5440975A (en) * 1992-02-25 1995-08-15 Bean; Douglas C. Food temperature maintenance
US5220909A (en) * 1992-05-28 1993-06-22 The United States Of America As Represented By The Secretary Of The Army Self-heating individual meal module
US5611329A (en) * 1995-08-04 1997-03-18 Truetech, Inc. Flameless heater and method of making same
US5901699A (en) * 1995-09-19 1999-05-11 Seco Products Corporation Heat retentive food service base
US5916470A (en) * 1997-01-10 1999-06-29 Aladdin Industries, Llc Microwaveable heat retentive receptacle
US6147337A (en) * 1998-12-10 2000-11-14 Aladdin Industries, Llc Microwaveable heat retentive receptacle
US6539935B2 (en) * 1999-12-14 2003-04-01 Kabushiki Kaisha Hosokawa Yoko Package for warming food
US6564558B1 (en) * 2000-10-05 2003-05-20 Seymour Michael L Disposable self-cooling, self-heating container
US7131289B2 (en) * 2004-06-29 2006-11-07 The Glad Products Company Container
US20060011619A1 (en) * 2004-07-14 2006-01-19 Sheridan Linda D Heating element
US7176426B2 (en) * 2005-03-18 2007-02-13 Ramirez Juan Jose Integrated microwaveable heat storage device

Also Published As

Publication number Publication date
EP3024361B1 (fr) 2021-06-30
AU2014295048A1 (en) 2016-02-11
EP3024361A1 (fr) 2016-06-01
CN105473030A (zh) 2016-04-06
CA2918261C (fr) 2021-06-22
PL3024361T3 (pl) 2022-03-14
DK3024361T3 (da) 2021-09-27
CA2918261A1 (fr) 2015-01-29
JP2016530915A (ja) 2016-10-06
EP2829202A1 (fr) 2015-01-28
AU2014295048B2 (en) 2019-05-23
JP3223183U (ja) 2019-09-26
EP3024361B8 (fr) 2021-11-03
WO2015011195A1 (fr) 2015-01-29
ES2890103T3 (es) 2022-01-17

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Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION