GB1112641A - Improvements in or relating to apparatus for heat treatment of articles - Google Patents

Improvements in or relating to apparatus for heat treatment of articles

Info

Publication number
GB1112641A
GB1112641A GB2721965A GB2721965A GB1112641A GB 1112641 A GB1112641 A GB 1112641A GB 2721965 A GB2721965 A GB 2721965A GB 2721965 A GB2721965 A GB 2721965A GB 1112641 A GB1112641 A GB 1112641A
Authority
GB
United Kingdom
Prior art keywords
tunnel
microwave
broadside
june
slots
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.)
Expired
Application number
GB2721965A
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.)
Husqvarna Vapenfabriks AB
Original Assignee
Husqvarna Vapenfabriks AB
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 Husqvarna Vapenfabriks AB filed Critical Husqvarna Vapenfabriks AB
Publication of GB1112641A publication Critical patent/GB1112641A/en
Expired 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
    • H05B6/78—Arrangements for continuous movement of material
    • H05B6/782—Arrangements for continuous movement of material wherein the material moved is food
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
    • A23L3/362—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/365—Thawing subsequent to freezing

Landscapes

  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Drying Of Solid Materials (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

1,112,641. Microwave heating. HUSQVARNA VAPENFABRIKS AKTIEBOLAG 28 June, 1965 [29 June, 1964], No. 27219/65. Heading H5H. Microwave heating apparatus comprises a tunnel 8 having a slot arranged longitudinally in a broadside symmetrically on the longitudinal centre line of the broadside, means for conveying articles through the tunnel and a microwave generator connected to the slot. Portions 1 of various frozen foods packed in non-metallic material are stored in a plurality of magazines 19 and are fed in any desired sequence by motordriven pistons (20), Fig. 3 (not shown), into the tunnel and conveyed through by variable-speed, chain-driven rollers 9. Energy from two magnetron generators 7 located in cupboards 5, 6 supporting the tunnel passes through microwave radiators 15 having parabolic sides 16 to slots (13), (14), Fig. 4 (not shown), covered with polyester material. Each cupboard contains transformers 35, 36, rectifier 37, relays and a control panel. The generators are automatically controlled by an optical sensing device, Fig. 4, comprising light-sensitive semi-conductor elements, lamps and mirrors. On leaving the tunnel the food portions are moved on a conveyer belt or sloped roller track. To prevent energy loss, slots and rollers are positioned to damp out secondary radiation before the end of the tube. A damping filter or flap may be provided near or at the open end. The tunnel may be cleaned by injecting hot water and detergent through a connection 33. Several tubes may be used together. Similar apparatus may be used for thawing bread or pastry, fermenting dough, drying wood and tobacco and thermal setting of foamed plastics material.
GB2721965A 1964-06-29 1965-06-28 Improvements in or relating to apparatus for heat treatment of articles Expired GB1112641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE792764A SE310921B (en) 1964-06-29 1964-06-29

Publications (1)

Publication Number Publication Date
GB1112641A true GB1112641A (en) 1968-05-08

Family

ID=20272670

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4467667A Expired GB1112642A (en) 1964-06-29 1965-06-28 Improvements in or relating to methods for producing hot foods
GB2721965A Expired GB1112641A (en) 1964-06-29 1965-06-28 Improvements in or relating to apparatus for heat treatment of articles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4467667A Expired GB1112642A (en) 1964-06-29 1965-06-28 Improvements in or relating to methods for producing hot foods

Country Status (3)

Country Link
DE (1) DE1492629A1 (en)
GB (2) GB1112642A (en)
SE (1) SE310921B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1207281A (en) * 1967-03-16 1970-09-30 Matsushita Electric Ind Co Ltd Microwave heating apparatus
GB8619203D0 (en) * 1986-08-06 1986-09-17 Contract Technology Ltd Packaging of viscous liquids

Also Published As

Publication number Publication date
GB1112642A (en) 1968-05-08
DE1492629A1 (en) 1969-08-21
SE310921B (en) 1969-05-19

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