WO2000024571A1 - Method of folding and sealing a container bottom - Google Patents

Method of folding and sealing a container bottom Download PDF

Info

Publication number
WO2000024571A1
WO2000024571A1 PCT/US1999/025194 US9925194W WO0024571A1 WO 2000024571 A1 WO2000024571 A1 WO 2000024571A1 US 9925194 W US9925194 W US 9925194W WO 0024571 A1 WO0024571 A1 WO 0024571A1
Authority
WO
WIPO (PCT)
Prior art keywords
mandrel
pair
carton
opposing walls
folding
Prior art date
Application number
PCT/US1999/025194
Other languages
French (fr)
Inventor
Kimberly D. Ammons
Original Assignee
International Paper Company
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 International Paper Company filed Critical International Paper Company
Priority to AU19062/00A priority Critical patent/AU1906200A/en
Priority to DE19983696T priority patent/DE19983696T1/en
Priority to JP2000578158A priority patent/JP4642235B2/en
Publication of WO2000024571A1 publication Critical patent/WO2000024571A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/30—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
    • B31B50/32—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths
    • B31B50/322—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths the mandrels extending radially from the periphery of a drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/626—Arrangements for permitting the glue to set
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding

Definitions

  • the present invention relates to a paper board, gable top filling machine typically used in the milk and juice industry and more specifically to the apparatus and method of forming and sealing the bottom of the gable top container.
  • novel apparatus and method are taught by which the bottom of a typical paperboard gable top container is formed and sealed.
  • a suitable paperboard blank having an opening in the top portion of the container for receipt of a fitment therein, is first expanded upon a rotating mandrel with the fitment opening facing outward from the plane of the rotating mandrel.
  • the bottom flap members are heated, folded to form the carton bottom, and sealed.
  • the bottom is formed by having a pair of appositely positioned fingers moving toward each other, within the plane of the rotating mandrel, whereby opposing gusset end walls are collapsed inwardly.
  • the planer side walls are closed atop the collapsing end walls by a pair of oppositely inwardly folding wings, having their axis of rotation parallel to the plane of the rotating mandrel, which fold the side walls atop the collapsed gusseted end walls.
  • the folded bottom panels are then moved to a final sealing station whereby the folded bottom is subjected to heat and pressure of a heated die to finally seal the bottom.
  • Figure 1 presents a schematic view of a liquid package filling machine embodying the present invention.
  • Figures 2 and 3 are sequential schematic crossectional views of the gusset fingers pressing the container end gussets inward.
  • Figure 4 is a pictorial view if the carton end gussets pressed inward by action of the gusset fingers.
  • Figure 5, 6 and 7 are sequential schematic views of the wings folding the carton side flaps over the inwardly folded end gussets.
  • Figure 8 is a pictorial view, similar to that of figure 4, showing the wings folding the side flaps over and atop the inwardly folded end gussets.
  • Figure 9 presents a pictorial view of the bottom of the carton after sealing.
  • Figure 10 presents a paperboard blank from which the herein described carton may be made.
  • Filling machine 10 basically comprises an assembly of rotating mandrels 12, for expanding a carton preform and sealing the carton bottom, a carton transfer line 28, and apparatus (not shown) for affixing a fitment, filling the carton, and sealing the gable top.
  • the assembly of mandrels includes six equally spaced mandrels 14A, 14B, 14C, 14D, 14E, AND 14F.
  • a typical carton loader 18 is provided for loading carton blanks 22 onto mandrels 14. As the mandrels rotate through their various operational positions, the bottom of the carton blank 22 is folded and sealed. The sealing operation will be discussed in more detail bellow.
  • FIG. 10 A paperboard blank, suitable for the following bottom sealing process is illustrated in figure 10.
  • the blanks 100 Prior to loading the paperboard blanks into hopper 18 the blanks 100 are first formed into preform 22 by folding blank 100 about fold line 110 whereby glue tap 120 overlaps side panel 140 and is glued thereto.
  • mandrel assembly 12 As illustrated in figure 1.
  • the plane of rotation of mandrel assembly 12 is coincident with the extended lateral plane of the carton conveyor 28.
  • the construction of mandrels 14 is as typically used on filling machines of this type and common within the industry and will not be 0 described further herein.
  • the drive mechanism for the rotating mandrels 14 is also well known in the industry and will also not be described further herein.
  • the carton blank feed mechanism and assembly is also well known within the industry and will not be described further herein.
  • a carton blank 22 is expanded to its open configuration at station A and applied to mandrel 14 in a process well known within the industry. Once the mandrel has received the carton preform 22 thereon, the mandrel assembly is rotated such that the carton preform 22 is positioned at mandrel station B.
  • a heater 20 is applied over the bottom of the carton blank 22 whereby the coating material of the blank is thermally softened and the heater removed. After softening the bottom area of blank 22, the mandrel assembly is rotated to position blank 22 at station C.
  • Wing 40 is slightly shorter than wing 42, as best seen in figures 5 and 6, and rotates slightly ahead of wing 42, as seen in figures 6 and 7, whereby flap 44 is folded ahead of flap 45 such that tab 50 is caused to fold under tab 52 of flap 45 as illustrated in figures 7 and 8 thereby forming the bottom 55 of carton 25 illustrated in figure 9.
  • the mandrel is again rotated, counterclockwise, whereby the carton bottom is passed along, and in contact with guide 56b to station E whereby the sealed bottom carton 25 is deposited upon conveyor 28, in a soldier course fashion, and advanced to the filling portion of the machine wherein the fitment is attached, the carton filled, and the gable top formed and sealed as typically done in gable top filling machines.
  • pressure is maintained upon the sealed bottom by guide 56b and guide 56b further acts a heat sink thereby removing heat from the sealed bottom insuring a permanent set to the sealed bottom components.
  • the carton bottom formed by the above described method and apparatus results in a bottom having raised center portion 60, above the plane of the bottom's four corners and at the approximate center of the bottom panel where the laminated tabs 50 and 52 overlie one another.
  • Cartons having this feature have surprisingly survived vibration tests, simulating shipping conditions, without experiencing typical bottom leaks otherwise experienced by prior art containers of this type.
  • the raised portion 60 see figure 9, that the cartons are permitted to rock about the raised portion, during shipping, thereby absorbing the impact shock that the four corners, of prior art containers otherwise experience thereby eliminating the introduction of leak sites.

Abstract

The present invention relates to an improved method and apparatus for forming and sealing the bottom of a liquid, paperboard, gable top, container. Apparatus is disclosed whereby the typical carton opening mandrel wheel has its axis of rotation perpendicular to the line direction of the machine thereby providing an improved and unique sequence of folding operations for forming the carton bottom.

Description

METHOD OF FOLDING AND SEALING A CONTAINER BOTTOM
BACKGROUND OF THE INVENTION:
The present invention relates to a paper board, gable top filling machine typically used in the milk and juice industry and more specifically to the apparatus and method of forming and sealing the bottom of the gable top container.
SUMMARY OF THE INVENTION:
According to the present invention novel apparatus and method are taught by which the bottom of a typical paperboard gable top container is formed and sealed. A suitable paperboard blank, having an opening in the top portion of the container for receipt of a fitment therein, is first expanded upon a rotating mandrel with the fitment opening facing outward from the plane of the rotating mandrel. Through a succession of operational positions of the mandrel, the bottom flap members are heated, folded to form the carton bottom, and sealed. The bottom is formed by having a pair of appositely positioned fingers moving toward each other, within the plane of the rotating mandrel, whereby opposing gusset end walls are collapsed inwardly. As the gusset end walls are collapsed the planer side walls are closed atop the collapsing end walls by a pair of oppositely inwardly folding wings, having their axis of rotation parallel to the plane of the rotating mandrel, which fold the side walls atop the collapsed gusseted end walls. The folded bottom panels are then moved to a final sealing station whereby the folded bottom is subjected to heat and pressure of a heated die to finally seal the bottom.
DESCRIPTION OF THE DRAWINGS:
Figure 1 presents a schematic view of a liquid package filling machine embodying the present invention. Figures 2 and 3 are sequential schematic crossectional views of the gusset fingers pressing the container end gussets inward.
Figure 4 is a pictorial view if the carton end gussets pressed inward by action of the gusset fingers.
Figure 5, 6 and 7 are sequential schematic views of the wings folding the carton side flaps over the inwardly folded end gussets.
Figure 8 is a pictorial view, similar to that of figure 4, showing the wings folding the side flaps over and atop the inwardly folded end gussets.
Figure 9 presents a pictorial view of the bottom of the carton after sealing.
Figure 10 presents a paperboard blank from which the herein described carton may be made.
DETAILED DESCRIPTION OF THE INVENTION:
Referring to figure 1, a partial schematic of a typical paper carton, gable top, filling machine is illustrated. Filling machine 10 basically comprises an assembly of rotating mandrels 12, for expanding a carton preform and sealing the carton bottom, a carton transfer line 28, and apparatus (not shown) for affixing a fitment, filling the carton, and sealing the gable top. Preferably the assembly of mandrels includes six equally spaced mandrels 14A, 14B, 14C, 14D, 14E, AND 14F. A typical carton loader 18 is provided for loading carton blanks 22 onto mandrels 14. As the mandrels rotate through their various operational positions, the bottom of the carton blank 22 is folded and sealed. The sealing operation will be discussed in more detail bellow. Subsequent to folding and sealing the bottom of the carton preform 22, the cartons are deposited upon a typical conveyor 28, filled and top sealed as is well known in the industry. A paperboard blank, suitable for the following bottom sealing process is illustrated in figure 10. Prior to loading the paperboard blanks into hopper 18 the blanks 100 are first formed into preform 22 by folding blank 100 about fold line 110 whereby glue tap 120 overlaps side panel 140 and is glued thereto.
5
Referring now to the mandrel assembly 12 as illustrated in figure 1. The plane of rotation of mandrel assembly 12 is coincident with the extended lateral plane of the carton conveyor 28. The construction of mandrels 14 is as typically used on filling machines of this type and common within the industry and will not be 0 described further herein. Further the drive mechanism for the rotating mandrels 14 is also well known in the industry and will also not be described further herein. Similarly the carton blank feed mechanism and assembly is also well known within the industry and will not be described further herein.
5 A carton blank 22 is expanded to its open configuration at station A and applied to mandrel 14 in a process well known within the industry. Once the mandrel has received the carton preform 22 thereon, the mandrel assembly is rotated such that the carton preform 22 is positioned at mandrel station B.
0 At station B a heater 20 is applied over the bottom of the carton blank 22 whereby the coating material of the blank is thermally softened and the heater removed. After softening the bottom area of blank 22, the mandrel assembly is rotated to position blank 22 at station C.
25 Referring now to figures 2 through 4, Once the mandrel has stopped at station C, rotatable fingers 30 A and 30B are rotated inwardly, as illustrated in figures 3 and 4 whereby the carton end gussets 32A and 32B are caused to begin their inward fold as illustrated in figure 4. After fingers 30A and 30B fold gussets 32A and 32B inward, rotatable wings 40 and 42 begin to rotate about their respective axis
30 34 and 35, see figures 5 and 6, thereby folding side flaps 44 and 45 inward. Wing 40 is slightly shorter than wing 42, as best seen in figures 5 and 6, and rotates slightly ahead of wing 42, as seen in figures 6 and 7, whereby flap 44 is folded ahead of flap 45 such that tab 50 is caused to fold under tab 52 of flap 45 as illustrated in figures 7 and 8 thereby forming the bottom 55 of carton 25 illustrated in figure 9.
After flap 44, and associated tab 50 are folded under flap 45 and associated tab 52, as illustrated in figure 8, the mandrel is rotated, counter clockwise, see figure 1, whereby the bottom 55 of carton 25 is held in its folded configuration by slidingly passing the carton bottom, in sliding contact with, and along guide 56a to station D where heated die 60 is moved radially inward toward, and into contact with the folded bottom 55 whereby the bottom is sealed under heat and pressure as is typical in filling machines of the prior art.
After sufficient time is permitted to elapse whereby the bottom of the carton preform is sufficiently softened and sealed, the mandrel is again rotated, counterclockwise, whereby the carton bottom is passed along, and in contact with guide 56b to station E whereby the sealed bottom carton 25 is deposited upon conveyor 28, in a soldier course fashion, and advanced to the filling portion of the machine wherein the fitment is attached, the carton filled, and the gable top formed and sealed as typically done in gable top filling machines. As the heat sealed carton bottom is passed along guide 56b, pressure is maintained upon the sealed bottom by guide 56b and guide 56b further acts a heat sink thereby removing heat from the sealed bottom insuring a permanent set to the sealed bottom components.
Because of the folding technique taught hereinabove, the carton bottom formed by the above described method and apparatus results in a bottom having raised center portion 60, above the plane of the bottom's four corners and at the approximate center of the bottom panel where the laminated tabs 50 and 52 overlie one another. Cartons having this feature have surprisingly survived vibration tests, simulating shipping conditions, without experiencing typical bottom leaks otherwise experienced by prior art containers of this type. Although not understood completely, it is believed that because of the raised portion 60, see figure 9, that the cartons are permitted to rock about the raised portion, during shipping, thereby absorbing the impact shock that the four corners, of prior art containers otherwise experience thereby eliminating the introduction of leak sites.
Having described the preferred embodiment of the present invention, it will be understood by those of ordinary skill in the art that the foregoing description is merely for the purpose of illustration and that numerous substitutions, rearrangements, and modifications may be made in the invention without departing from the scope and spirit of the appended claims.

Claims

I CLAIM:
1. A method of forming a bottom panel of a paperboard container comprising: a) providing a paperboard preform having a first and second pair of opposing walls wherein said first pair of opposing walls include gusseted panels and said second pair of opposing walls comprise generally flat planer panels,
b) expanding said preform upon a rotating mandrel whereby the plane of the second pair of opposing walls is parallel to the plane of rotation of said mandrel,
c) rotating said mandrel to a first operating station whereby the first and second pairs of walls heated,
d) rotating said mandrel to a second operating station,
e) folding said first pair of opposing walls inwardly toward each other within the plane of said mandrel's rotation,
f) folding said second pair of walls inwardly toward each other whereby said second pair of opposing walls overlie said first pair of opposing walls,
g) rotating said mandrel to a third operating position.
h) applying heat and pressure to said second pair of opposing walls whereby said heat effects the adhesion of said first and second pairs of walls thereby sealing the bottom of said container.
PCT/US1999/025194 1998-10-27 1999-10-27 Method of folding and sealing a container bottom WO2000024571A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU19062/00A AU1906200A (en) 1998-10-27 1999-10-27 Method of folding and sealing a container bottom
DE19983696T DE19983696T1 (en) 1998-10-27 1999-10-27 Process for folding and sealing a container bottom
JP2000578158A JP4642235B2 (en) 1998-10-27 1999-10-27 How to fold and seal the bottom of a container

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10585798P 1998-10-27 1998-10-27
US60/105,857 1998-10-27

Publications (1)

Publication Number Publication Date
WO2000024571A1 true WO2000024571A1 (en) 2000-05-04

Family

ID=22308170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/025194 WO2000024571A1 (en) 1998-10-27 1999-10-27 Method of folding and sealing a container bottom

Country Status (6)

Country Link
JP (1) JP4642235B2 (en)
KR (1) KR100718401B1 (en)
CN (1) CN1144736C (en)
AU (1) AU1906200A (en)
DE (1) DE19983696T1 (en)
WO (1) WO2000024571A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4816117B2 (en) * 2006-02-09 2011-11-16 大日本印刷株式会社 Paper container bottom assembly equipment
CN112693164B (en) * 2020-12-29 2023-05-26 易程融创信息科技有限公司 Process for folding paper box plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166994A (en) * 1961-11-03 1965-01-26 Ex Cell O Corp Rotating carton tucker apparatus
US3602106A (en) * 1969-06-18 1971-08-31 Ex Cell O Corp Machine for forming paperboard container bottom closure
EP0832731A2 (en) * 1996-09-27 1998-04-01 Shikoku Kakoki Co., Ltd. Heating device for heat-sealing bottom portions of containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166994A (en) * 1961-11-03 1965-01-26 Ex Cell O Corp Rotating carton tucker apparatus
US3602106A (en) * 1969-06-18 1971-08-31 Ex Cell O Corp Machine for forming paperboard container bottom closure
EP0832731A2 (en) * 1996-09-27 1998-04-01 Shikoku Kakoki Co., Ltd. Heating device for heat-sealing bottom portions of containers

Also Published As

Publication number Publication date
KR100718401B1 (en) 2007-05-14
KR20020005567A (en) 2002-01-17
JP4642235B2 (en) 2011-03-02
CN1144736C (en) 2004-04-07
AU1906200A (en) 2000-05-15
CN1378502A (en) 2002-11-06
JP2002528296A (en) 2002-09-03
DE19983696T1 (en) 2001-10-04

Similar Documents

Publication Publication Date Title
US5435803A (en) Container fitment applicator
US6467682B2 (en) Carton, a blank for producing a carton, and methods and apparatus for erecting, closing, and sealing a carton
US6385950B1 (en) Carton bottom folder
CA1235933A (en) Methods and apparatus for erecting tray-type cartons
US3133688A (en) Reclosable angle spout carton
CA2565891A1 (en) Methods and apparatus for manufacture of a reclosable plastic carton
AU685679B2 (en) Apparatus and method for sealing gabled containers
US6881180B2 (en) Apparatus for forming a bottom closure for a container
US5809743A (en) Top folding and sealing apparatus for forming and sealing the fin of a gabled carton
US5867966A (en) Method and apparatus for forming the top of a container
US3398659A (en) Apparatus for folding and tucking a container closure
US7380389B2 (en) Bottom pre-folder for carton with folded-in gusset tips
US4046308A (en) Packaging
WO2000024571A1 (en) Method of folding and sealing a container bottom
US4189986A (en) Method and apparatus for heat sealing a package blank
US3166994A (en) Rotating carton tucker apparatus
US4319878A (en) Method and apparatus for forming a reinforced half-slotted container
CA1292417C (en) Tray carton end flap auxiliary sealer
US5555708A (en) Pressure closing mechanism
US2472883A (en) Method and apparatus for producing cartons
US3124915A (en) Method of forming a lined carton
US6990792B2 (en) Carton bottom folding assembly
EP1123236B1 (en) Rotatable flap folder
US3439589A (en) Machine for folding carton blanks
US20060126275A1 (en) Bottom folder for carton with folded-in gusset tips

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 99812714.0

Country of ref document: CN

AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWE Wipo information: entry into national phase

Ref document number: 1020017005155

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2000 578158

Country of ref document: JP

Kind code of ref document: A

RET De translation (de og part 6b)

Ref document number: 19983696

Country of ref document: DE

Date of ref document: 20011004

WWE Wipo information: entry into national phase

Ref document number: 19983696

Country of ref document: DE

WWP Wipo information: published in national office

Ref document number: 1020017005155

Country of ref document: KR

WWG Wipo information: grant in national office

Ref document number: 1020017005155

Country of ref document: KR