EP0015461A1 - Verfahren und Vorrichtung zum Herstellen selbstwärmender Behälter für vorgekochte Lebensmittel - Google Patents

Verfahren und Vorrichtung zum Herstellen selbstwärmender Behälter für vorgekochte Lebensmittel Download PDF

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Publication number
EP0015461A1
EP0015461A1 EP80100894A EP80100894A EP0015461A1 EP 0015461 A1 EP0015461 A1 EP 0015461A1 EP 80100894 A EP80100894 A EP 80100894A EP 80100894 A EP80100894 A EP 80100894A EP 0015461 A1 EP0015461 A1 EP 0015461A1
Authority
EP
European Patent Office
Prior art keywords
tray
container
superposing
web
calcium oxide
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Withdrawn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
EP80100894A
Other languages
English (en)
French (fr)
Inventor
Vincenzo Grosso
Attilio Grosso
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0015461A1 publication Critical patent/EP0015461A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/22—Packaging articles of food, e.g. fish fillets, intended to be cooked in the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/04—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure

Definitions

  • the present invention relates to a process as well as a corresponding apparatus for making self-warming containers for precooked foods, of the kind operating by means of an exothermic reaction between calcium oxide and water, said water being contained in a hermetically closed envelope, placed in a suitable tray containing also loose calcium oxide granules; opening of the water envelope is obtained at the moment of use by pulling a control strip projecting from the container and bearing at the other end a cutting member.
  • U.S. Patent Specification N° 3,871,357 discloses a self-warming container for precooked foods operating according to the above stated principle, but the manufacture of such a container was hitherto made with a semiautomatic process involving too many manual operations, which did not allow a mass production and did not guarantee a perfect product.
  • the apparatus substantially consists of the combination of means for supporting and automatically unwinding a roll of flexible but strong material such as aluminium foil, means for lubricating said material, means for delivering and positioning said material under a cutting and forming die, means for assembling the tray with the outer box, means for batching the calcium oxide granules, means for superposing the hermetic water envelope to the granules, the control strip with the cutting member being already affixed to the envelope, means for superposing the food-containing preformed aluminium plate, means for compacting the container, means for seam folding the edges of the container, means for coupling the cover and means for positioning and advancing the container during the entire operative cycle.
  • the aluminum foil roll 1 (which may also be of other flexible but resistant material of a suitable kind) is arranged on a unwinding device 2 which is causing it to rotate step by step in synchronism with the subsequent stages.
  • the aluminum web is then being sprayed with a suitable liquid in the lubricating device 3 so as to be ready for printing.
  • Under the lubricating device there are an upper sensor 4 and a lower sensor 5, both provided with a proximity contact which, when the loop 6 of the aluminium foil is coming too close to the sensor 5 moving away from sensor 4, controls the unwinding device 2 so as to rotate for an amount sufficient to bring again the loop 6 to the predetermined position.
  • This step makes available an amount of aluminium foil of sufficient length which, after being brought in line by idler roller 7, is drawn by jaws 8 of the automatic advancing device and subsequently is held-in position by piston 9 of a pneumatic jack 10 while the drawing die 11 is lowered on the opposite mold 12 so as to shape the tray 13.
  • a preformed outer box 16 of cardboard or other suitable material is positioned by a feeding and stacking device 15.
  • the tray 13 will be automatically superposed, said tray 13 being of a height less than the box height so as to leave an air gap between tray and box bottom.
  • the latter step of automatic superposition may be obviously replaced by a manual operation.
  • the conveyor 14 then moves the tray and its supporting box under a batching device 17 pouring a predetermined and accurately metered amount of calcium oxide into said tray.
  • a feeder 18 is then superposing to the calcium oxide granules, the hermetic water envelope 19 which is already finished with the control strip, which in its turn as the cutting element to tear the water envelope.
  • Another feeding device 20 superposes the plate 21 made of aluminium or other good heat conductive material, said plate being formed by a separate machine and stacked in the feeding device 20.
  • the devices feeding and stacking the water envelope and the trays might be replaced by manual operation, without affecting however the precision and reliability characteristics of the finished product.
  • the container is now comprised by all its elements and it is necessary to drive it under an inclined plane 22, forming together with the conveyor a sort of funnel or tapered path, in order to compact all the elements of the container and prepare it for the subsequent automatic seam folding step.
  • the seam folding device 23 has arms 24 pressing on the container edges and folding the edge of both the tray and the plate on the edge of the box, so as to obtain a perfect sealing.
  • a final feeder then places the preformed cover 26, preferably made of transparent plastics.
  • the self-warming containers 27 ready for use are stacked and collected for transportation to the food industry. Also the cover superposing and the final stacking operations might be carried out manually.
EP80100894A 1979-03-02 1980-02-22 Verfahren und Vorrichtung zum Herstellen selbstwärmender Behälter für vorgekochte Lebensmittel Withdrawn EP0015461A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2068279 1979-03-02
IT20682/79A IT1111133B (it) 1979-03-02 1979-03-02 Procedimento ed impianto per il confezionamento di contenitori autoscaldanti per cibi precotti

Publications (1)

Publication Number Publication Date
EP0015461A1 true EP0015461A1 (de) 1980-09-17

Family

ID=11170491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100894A Withdrawn EP0015461A1 (de) 1979-03-02 1980-02-22 Verfahren und Vorrichtung zum Herstellen selbstwärmender Behälter für vorgekochte Lebensmittel

Country Status (2)

Country Link
EP (1) EP0015461A1 (de)
IT (1) IT1111133B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656042A (en) * 1982-03-03 1987-04-07 Pierre Risler Method for separately packaging food components
WO2004022450A1 (en) * 2002-09-05 2004-03-18 Guida & C. S.P.A. A single-use, self-heating or self-cooling container, particularly for beverages and method for manufacturing the same
KR100877454B1 (ko) * 2005-03-04 2009-01-07 구이다 앤 씨.에스.피.에이. 자기 가열식 또는 자기 냉각식 용기 및 그 제조 방법
US7937909B2 (en) * 2008-06-30 2011-05-10 James A. Donovan Method for creating a package pressure differential

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244082A (en) * 1962-05-21 1966-04-05 Jerome H Lemelson Packaging machinery
US3892060A (en) * 1970-03-30 1975-07-01 Kay Laboratories Inc Hot or cold pack and apparatus for and method of making same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244082A (en) * 1962-05-21 1966-04-05 Jerome H Lemelson Packaging machinery
US3892060A (en) * 1970-03-30 1975-07-01 Kay Laboratories Inc Hot or cold pack and apparatus for and method of making same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656042A (en) * 1982-03-03 1987-04-07 Pierre Risler Method for separately packaging food components
WO2004022450A1 (en) * 2002-09-05 2004-03-18 Guida & C. S.P.A. A single-use, self-heating or self-cooling container, particularly for beverages and method for manufacturing the same
US7721556B2 (en) 2002-09-05 2010-05-25 Guida & C. S.P.A. Single-use, self-heating or self-cooling container, particularly for beverages and method for manufacturing the same
KR100877454B1 (ko) * 2005-03-04 2009-01-07 구이다 앤 씨.에스.피.에이. 자기 가열식 또는 자기 냉각식 용기 및 그 제조 방법
US7937909B2 (en) * 2008-06-30 2011-05-10 James A. Donovan Method for creating a package pressure differential

Also Published As

Publication number Publication date
IT1111133B (it) 1986-01-13
IT7920682A0 (it) 1979-03-02

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19811118