WO2000058190A1 - Apparatus for feeding sheet material - Google Patents

Apparatus for feeding sheet material Download PDF

Info

Publication number
WO2000058190A1
WO2000058190A1 PCT/GB1999/001010 GB9901010W WO0058190A1 WO 2000058190 A1 WO2000058190 A1 WO 2000058190A1 GB 9901010 W GB9901010 W GB 9901010W WO 0058190 A1 WO0058190 A1 WO 0058190A1
Authority
WO
WIPO (PCT)
Prior art keywords
rollers
take
sheet
gate
lowermost sheet
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.)
Ceased
Application number
PCT/GB1999/001010
Other languages
English (en)
French (fr)
Inventor
John Anthony Sullivan
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
Priority to PCT/GB1999/001010 priority Critical patent/WO2000058190A1/en
Priority to AU33387/99A priority patent/AU3338799A/en
Priority claimed from PCT/GB1999/002040 external-priority patent/WO2001000514A1/en
Priority claimed from GBGB9916159.8A external-priority patent/GB9916159D0/en
Priority to PCT/GB2000/001129 priority patent/WO2000058192A2/en
Priority to AU34444/00A priority patent/AU3444400A/en
Priority to EP04004626A priority patent/EP1424298B1/en
Priority to ES00912798T priority patent/ES2222187T3/es
Priority to GB0314403A priority patent/GB2387168B/en
Priority to AT00912798T priority patent/ATE271008T1/de
Priority to DE60043712T priority patent/DE60043712D1/de
Priority to EP00912798A priority patent/EP1165418B1/en
Priority to GB0117203A priority patent/GB2363603B/en
Priority to DE60012159T priority patent/DE60012159T2/de
Priority to JP2000607906A priority patent/JP2002540041A/ja
Priority to AT04004626T priority patent/ATE455066T1/de
Priority to US09/936,917 priority patent/US6829969B1/en
Publication of WO2000058190A1 publication Critical patent/WO2000058190A1/en
Anticipated expiration legal-status Critical
Priority to US10/972,998 priority patent/US7192024B2/en
Priority to JP2008008830A priority patent/JP2008143715A/ja
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/063—Rollers or like rotary separators separating from the bottom of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0692—Vacuum assisted separator rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/18—Modifying or stopping actuation of separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/80—Transmissions, i.e. for changing speed
    • B65H2403/82—Variable speed drive units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/16—Details of driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers
    • B65H2406/312—Suction box; Suction chambers incorporating means for transporting the handled material against suction force
    • B65H2406/3122—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/21—Angle
    • B65H2511/212—Rotary position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/24—Calculating methods; Mathematic models
    • B65H2557/242—Calculating methods; Mathematic models involving a particular data profile or curve
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4691—Interrelated control of tool and work-feed drives
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/527—With means to control work-responsive signal system
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6668—Interrelated work-feeding means and tool-moving means

Definitions

  • This invention concerns apparatus for feeding sheet material, particularly, though by no means exclusively, of corrugated board or card as used in the box and carton making industries.
  • stacked sheets are placed on a feed table against a gate which allows only the lowermost sheet to pass therebeneath under the action of a reciprocating vacuum suction cup, feed rollers or a kicker mechanism, to be taken into the nip of take- up rolls.
  • a reciprocating vacuum suction cup, feed rollers or a kicker mechanism to be taken into the nip of take- up rolls.
  • Such feeding arrangements must be controlled with great precision and even then misfeeds are a not uncommon experience.
  • apparatus for feeding sheet material sequentially on demand to processing machinery having a take-up mechanism comprising a feed table having a gate and upon which the sheets may be stacked against the gate which allows only the lowermost sheet to pass therebeneath, a bed of rollers within the surface of the table which may be rotatably driven to advance the lowermost sheet beneath the gate to the take-up mechanism when forward drive to the rollers is arrested and means to allow the rollers to free-wheel once the lowermost sheet is being advanced thereover by said take-up mechanism and vacuum suction means behind the rollers to hold the next lowermost sheet against the action of the free-wheeling rollers after the sheet being fed has passed under the gate.
  • the take-up mechanism may comprise take-up rolls.
  • the rollers may be fitted with sprag clutches and may advance the sheet being fed at a slower speed than that of the take-up mechanism.
  • Vacuum suction may be applied from beneath the rollers to pull the lowermost sheet downwardly thereagainst.
  • Figure 1 shows a side elevation of a first form of apparatus
  • Figure 2 shows a cross-section through the apparatus on the line II-II of Figure 1 ;
  • Figure 3 shows a side elevation of a second form of apparatus.
  • the apparatus comprises a feed table 10 upon which a stack of sheets S may be placed against a gate 11 beneath which only the lowermost sheet in the stack may pass. Successive sheets are advanced beneath the gate 1 1 into the nip of take-up rolls 12 by a bed 13 of rollers 14 within the surface of the table.
  • the take-up rolls 12 forward the successive sheets in timed sequence to processing machinery such as a rotary die-cutter.
  • the rollers are mounted within a chamber 15 to which vacuum suction is applied to pull the lowermost sheet downwardly thereagainst.
  • the rollers 14 advance the lowermost sheet by being rotatably driven as indicated by the arrows X at a speed equal to or less than the speed of the take-up rolls 12. Once the sheet is advanced by the rolls 12 and rollers 14 free-wheel, the rollers 14 having sprag clutches between their inner peripheries and their drive shafts 16.
  • the drive shafts 16 are rotatably interconnected by timing drive belts 17 and one shaft is driven by a timing belt 18 itself driven intermittently in a forward direction only by a servo-electric motor 21 which stops whilst a sheet is being advanced by the take-up rolls 12 and which operates at a timed sequence demanded by the processing machinery.
  • FIG. 3 The arrangement of Figure 3 is generally similar, like parts being indicated by like reference numerals.
  • the timing belt 18 is driven by a timing belt 19 reciprocated by an arm 20 operating in time with the processing machiner ⁇ '.
  • the shafts 16 of the rollers 14 are driven in reverse direction during the time that the rollers 14 are free-wheeling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Making Paper Articles (AREA)
PCT/GB1999/001010 1999-03-31 1999-03-31 Apparatus for feeding sheet material Ceased WO2000058190A1 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
PCT/GB1999/001010 WO2000058190A1 (en) 1999-03-31 1999-03-31 Apparatus for feeding sheet material
AU33387/99A AU3338799A (en) 1999-03-31 1999-03-31 Apparatus for feeding sheet material
AT04004626T ATE455066T1 (de) 1999-03-31 2000-03-24 Verarbeitung von blattmaterial
US09/936,917 US6829969B1 (en) 1999-03-31 2000-03-24 Sheet material processing
AT00912798T ATE271008T1 (de) 1999-03-31 2000-03-24 Verarbeitung von blattmaterial
DE60012159T DE60012159T2 (de) 1999-03-31 2000-03-24 Verarbeitung von blattmaterial
EP04004626A EP1424298B1 (en) 1999-03-31 2000-03-24 Sheet material processing
ES00912798T ES2222187T3 (es) 1999-03-31 2000-03-24 Tratamiento de material laminar.
GB0314403A GB2387168B (en) 1999-03-31 2000-03-24 Sheet material processing
PCT/GB2000/001129 WO2000058192A2 (en) 1999-03-31 2000-03-24 Sheet material processing
DE60043712T DE60043712D1 (de) 1999-03-31 2000-03-24 Verarbeitung von Blattmaterial
EP00912798A EP1165418B1 (en) 1999-03-31 2000-03-24 Sheet material processing
GB0117203A GB2363603B (en) 1999-03-31 2000-03-24 Sheet material processing
AU34444/00A AU3444400A (en) 1999-03-31 2000-03-24 Sheet material processing
JP2000607906A JP2002540041A (ja) 1999-03-31 2000-03-24 シート材料の加工処理
US10/972,998 US7192024B2 (en) 1999-03-31 2004-10-25 Sheet material processing
JP2008008830A JP2008143715A (ja) 1999-03-31 2008-01-18 シート材料の加工処理

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/GB1999/001010 WO2000058190A1 (en) 1999-03-31 1999-03-31 Apparatus for feeding sheet material
PCT/GB1999/002040 WO2001000514A1 (en) 1999-06-29 1999-06-29 Apparatus for feeding sheet material
GBGB9916159.8A GB9916159D0 (en) 1999-07-10 1999-07-10 Apparatus for feeding sheet material

Publications (1)

Publication Number Publication Date
WO2000058190A1 true WO2000058190A1 (en) 2000-10-05

Family

ID=56289899

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/GB1999/001010 Ceased WO2000058190A1 (en) 1999-03-31 1999-03-31 Apparatus for feeding sheet material
PCT/GB2000/001129 Ceased WO2000058192A2 (en) 1999-03-31 2000-03-24 Sheet material processing

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001129 Ceased WO2000058192A2 (en) 1999-03-31 2000-03-24 Sheet material processing

Country Status (9)

Country Link
US (2) US6829969B1 (enExample)
EP (2) EP1424298B1 (enExample)
JP (2) JP2002540041A (enExample)
AT (2) ATE271008T1 (enExample)
AU (1) AU3444400A (enExample)
DE (1) DE60012159T2 (enExample)
ES (1) ES2222187T3 (enExample)
GB (2) GB2387168B (enExample)
WO (2) WO2000058190A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6829969B1 (en) 1999-03-31 2004-12-14 John Anthony Sullivan Sheet material processing

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GB0026821D0 (en) * 2000-11-02 2000-12-20 Esselte Nv Laminating machine
AU2002212532A1 (en) * 2000-11-21 2002-06-03 John Anthony Sullivan Method and apparatus for feeding sheets
DE10137390B4 (de) * 2001-07-31 2013-06-13 Giesecke & Devrient Gmbh Verfahren und Vorrichtung für die Vereinzelung von Blattgut
ITTO20011043A1 (it) * 2001-11-02 2003-05-02 Tetra Laval Holdings E Finance Materiale di confezionamento in foglio per il confezionamento di prodotti alimentari versabili.
DE102005023618B3 (de) * 2005-05-21 2006-12-07 Aci-Ecotec Gmbh & Co.Kg Einrichtung zum Vereinzeln von Silizium-Wafern von einem Stapel
US7635124B2 (en) * 2005-12-28 2009-12-22 Sun Automation, Inc. Feeder with adjustable time cycle and method
FR2908757B1 (fr) * 2006-11-16 2009-02-13 Neopost Technologies Sa Dispositif d'empilage d'articles de courrier.
CN101209600B (zh) * 2006-12-27 2010-05-19 上海今昌纸箱机械制造有限公司 带有伺服系统的送纸输送机构
CN101935959B (zh) * 2010-08-09 2012-12-05 青岛美光机械有限公司 伺服压边送纸机
DE102011116365A1 (de) * 2011-10-19 2013-04-25 Heidelberger Druckmaschinen Aktiengesellschaft Bogenbearbeitungsmaschine mit Bogenanleger mit Saugbandmodul
DK2687383T3 (en) * 2012-07-18 2016-02-15 Ardagh Mp Group Netherlands Bv Embossing the flat metal blank (method and apparatus)
US8748769B2 (en) * 2012-10-24 2014-06-10 Pitney Bowes Inc. Stacking assembly for a mailpiece sorter
FR3000917B1 (fr) * 2013-01-11 2015-02-20 Bobst Lyon Procede de commande, pour commander une machine de transformation, machine de transformation et programme d'ordinateur pour realiser un tel procede de commande
TWI551533B (zh) * 2015-05-26 2016-10-01 住華科技股份有限公司 自動收片機及應用其之自動收片方法
DE102016115049B3 (de) * 2016-08-12 2018-02-15 Troester Gmbh & Co. Kg Vorrichtung zum Beschicken eines Extruders
DE102018133451B4 (de) * 2018-12-21 2023-12-28 Bdt Media Automation Gmbh Haltevorrichtung sowie Verfahren zum Betreiben einer Haltevorrichtung
US11325799B2 (en) * 2019-09-13 2022-05-10 Xerox Corporation Interdigitated vacuum roll system for a cut sheet printer dryer transport

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EP0794140A1 (en) * 1990-07-05 1997-09-10 Mitsubishi Jukogyo Kabushiki Kaisha Paperboard feeding apparatus

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WO2000058190A1 (en) 1999-03-31 2000-10-05 John Anthony Sullivan Apparatus for feeding sheet material
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AU4524399A (en) 1999-06-29 2001-01-31 John Anthony Sullivan Apparatus for feeding sheet material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648587A (en) * 1983-03-24 1987-03-10 Nec Corporation Flat article feeding apparatus
EP0794140A1 (en) * 1990-07-05 1997-09-10 Mitsubishi Jukogyo Kabushiki Kaisha Paperboard feeding apparatus
WO1996029269A1 (en) * 1995-03-21 1996-09-26 John Anthony Sullivan Apparatus for feeding sheet material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6829969B1 (en) 1999-03-31 2004-12-14 John Anthony Sullivan Sheet material processing
US7192024B2 (en) 1999-03-31 2007-03-20 John Anthony Sullivan Sheet material processing

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ES2222187T3 (es) 2005-02-01
DE60012159D1 (de) 2004-08-19
EP1424298A3 (en) 2004-09-22
AU3444400A (en) 2000-10-16
GB0314403D0 (en) 2003-07-23
EP1424298A2 (en) 2004-06-02
GB0117203D0 (en) 2001-09-05
EP1424298B1 (en) 2010-01-13
GB2387168C (en) 1900-01-01
US6829969B1 (en) 2004-12-14
GB2387168B (en) 2004-02-25
JP2008143715A (ja) 2008-06-26
WO2000058192A3 (en) 2001-02-15
DE60012159T2 (de) 2005-08-04
WO2000058192B1 (en) 2001-04-12
EP1165418B1 (en) 2004-07-14
GB2387168A (en) 2003-10-08
ATE455066T1 (de) 2010-01-15
GB2363603B (en) 2003-10-08
EP1165418A2 (en) 2002-01-02
ATE271008T1 (de) 2004-07-15
GB2363603A (en) 2002-01-02
US7192024B2 (en) 2007-03-20
US20050056991A1 (en) 2005-03-17
JP2002540041A (ja) 2002-11-26
WO2000058192A2 (en) 2000-10-05

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