EP0348156A3 - Improvements relating to microwave heating - Google Patents

Improvements relating to microwave heating Download PDF

Info

Publication number
EP0348156A3
EP0348156A3 EP19890306233 EP89306233A EP0348156A3 EP 0348156 A3 EP0348156 A3 EP 0348156A3 EP 19890306233 EP19890306233 EP 19890306233 EP 89306233 A EP89306233 A EP 89306233A EP 0348156 A3 EP0348156 A3 EP 0348156A3
Authority
EP
European Patent Office
Prior art keywords
substance
higher order
stand
container
modes
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Withdrawn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
EP19890306233
Other languages
German (de)
French (fr)
Other versions
EP0348156A2 (en
Inventor
Bryan Cobley Hewitt
Melville Douglas Ball
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.)
Rio Tinto Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
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 Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Publication of EP0348156A2 publication Critical patent/EP0348156A2/en
Publication of EP0348156A3 publication Critical patent/EP0348156A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6491—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors
    • H05B6/6494—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors for cooking
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/344—Geometry or shape factors influencing the microwave heating properties
    • B65D2581/3441—3-D geometry or shape factors, e.g. depth-wise
    • 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
    • B65D2581/00—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
    • B65D2581/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—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 for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3494—Microwave susceptor

Abstract

A container (10) for heating a substance, e.g. food, in a microwave oven has a bottom (12) transparent to microwave energy. The container is supported on a stand (22) that contains one or more electrically conductive plates (32) (or apertures in an electrically conductive sheet) that generate at least one mode of microwave energy of higher order than the fundamental modes. The stand (22) also serves to support the container (10) above the higher order mode generating plates (or apertures) so that the undersurface of the substance is spaced from them by a uniform predetermined distance. The arrangement has the known features of "bottom heating", i.e. taking advantage of the natural heat flow in the substance, while achieving more uniform heating of the substance by virtue of the higher order mode or modes. As an alternative to or in addition to the generation of higher order modes, the stand may embody elements that modify the microwave pattern in a manner that enhances the coupling of microwave energy into the undersurface of the substance to be heated.
EP19890306233 1988-06-22 1989-06-20 Improvements relating to microwave heating Withdrawn EP0348156A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000570096A CA1306509C (en) 1988-06-22 1988-06-22 Microwave heating
CA570096 1988-06-22

Publications (2)

Publication Number Publication Date
EP0348156A2 EP0348156A2 (en) 1989-12-27
EP0348156A3 true EP0348156A3 (en) 1991-11-27

Family

ID=4138250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890306233 Withdrawn EP0348156A3 (en) 1988-06-22 1989-06-20 Improvements relating to microwave heating

Country Status (10)

Country Link
EP (1) EP0348156A3 (en)
JP (1) JPH0264323A (en)
AU (1) AU615755B2 (en)
BR (1) BR8903046A (en)
CA (1) CA1306509C (en)
DK (1) DK306489A (en)
FI (1) FI893049A (en)
NO (1) NO892519L (en)
NZ (1) NZ229606A (en)
ZA (1) ZA894620B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5310980A (en) * 1988-11-28 1994-05-10 Beckett Industries, Inc. Control of microwave energy in cooking foodstuffs
CA2009207A1 (en) * 1990-02-02 1991-08-02 D. Gregory Beckett Controlled heating of foodstuffs by microwave energy
JP2513674Y2 (en) * 1990-08-21 1996-10-09 ハウス食品株式会社 Heating aids for electromagnetic cookers
US5864123A (en) * 1995-06-02 1999-01-26 Keefer; Richard M. Smart microwave packaging structures
DE69903004T2 (en) 1999-06-11 2003-01-16 Nestle Sa Microwave container for frozen food and its method of use
ITBS20050018A1 (en) * 2005-02-18 2006-08-19 Enrico Ranchetti DIFFUSER OF MICROWAVE
FR2898591B1 (en) * 2006-03-17 2008-05-23 Francois Berthault DEVICE FOR CONDITIONING AND COOKING EXTRUDED CEREALS OR THE LIKE
JP6108963B2 (en) * 2013-05-30 2017-04-05 東洋アルミエコープロダクツ株式会社 Food cooking container
JP2020067212A (en) * 2018-10-23 2020-04-30 パナソニックＩｐマネジメント株式会社 Heating device and refrigerator comprising heating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600566A (en) * 1949-11-23 1952-06-17 Jr Frank Wesley Moffett Method of heating frozen food packages
EP0206811A2 (en) * 1985-06-25 1986-12-30 Alcan International Limited Microwave container
US4642434A (en) * 1985-11-14 1987-02-10 Golden Valley Microwave Foods Inc. Microwave reflective energy concentrating spacer
EP0271981A2 (en) * 1986-05-09 1988-06-22 Alcan International Limited Microwave container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600566A (en) * 1949-11-23 1952-06-17 Jr Frank Wesley Moffett Method of heating frozen food packages
EP0206811A2 (en) * 1985-06-25 1986-12-30 Alcan International Limited Microwave container
US4642434A (en) * 1985-11-14 1987-02-10 Golden Valley Microwave Foods Inc. Microwave reflective energy concentrating spacer
EP0271981A2 (en) * 1986-05-09 1988-06-22 Alcan International Limited Microwave container

Also Published As

Publication number Publication date
AU3665489A (en) 1990-01-04
FI893049A (en) 1989-12-23
FI893049A0 (en) 1989-06-21
JPH0264323A (en) 1990-03-05
BR8903046A (en) 1990-02-06
DK306489D0 (en) 1989-06-21
EP0348156A2 (en) 1989-12-27
ZA894620B (en) 1990-03-28
NO892519L (en) 1989-12-27
NO892519D0 (en) 1989-06-16
DK306489A (en) 1989-12-23
CA1306509C (en) 1992-08-18
NZ229606A (en) 1991-12-23
AU615755B2 (en) 1991-10-10

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